diff --git a/BUILD.bazel b/BUILD.bazel
index 29f43ce..9c53db3 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -81,6 +81,7 @@
         "include/spirv/1.2/GLSL.std.450.h",
         "include/spirv/1.2/OpenCL.std.h",
         "include/spirv/unified1/GLSL.std.450.h",
+        "include/spirv/unified1/NonSemanticDebugPrintf.h",
         "include/spirv/unified1/OpenCL.std.h",
     ],
     includes = ["include"],
diff --git a/BUILD.gn b/BUILD.gn
new file mode 100644
index 0000000..57e35f0
--- /dev/null
+++ b/BUILD.gn
@@ -0,0 +1,43 @@
+# Copyright (c) 2020 Google LLC
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and/or associated documentation files (the "Materials"),
+# to deal in the Materials without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Materials, and to permit persons to whom the
+# Materials are furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Materials.
+#
+# MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS
+# STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND
+# HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/
+#
+# THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS
+# IN THE MATERIALS.
+
+config("spv_headers_public_config") {
+  include_dirs = [ "include" ]
+}
+
+source_set("spv_headers") {
+  sources = [
+    "include/spirv/1.2/GLSL.std.450.h",
+    "include/spirv/1.2/OpenCL.std.h",
+    "include/spirv/1.2/spirv.h",
+    "include/spirv/1.2/spirv.hpp",
+    "include/spirv/unified1/GLSL.std.450.h",
+    "include/spirv/unified1/NonSemanticDebugPrintf.h",
+    "include/spirv/unified1/OpenCL.std.h",
+    "include/spirv/unified1/spirv.h",
+    "include/spirv/unified1/spirv.hpp",
+  ]
+
+  public_configs = [ ":spv_headers_public_config" ]
+}
diff --git a/CMakeLists.txt b/CMakeLists.txt
index c6f4c4c..eb46947 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,7 +29,7 @@
 # https://www.khronos.org/registry/spir-v/
 #
 cmake_minimum_required(VERSION 3.0)
-project(SPIRV-Headers VERSION 1.4.1)
+project(SPIRV-Headers VERSION 1.5.1)
 
 # There are two ways to use this project.
 #
diff --git a/README.md b/README.md
index 53c476f..2ea3dc5 100644
--- a/README.md
+++ b/README.md
@@ -119,7 +119,7 @@
 #include "spirv/unified1/spirv.hpp"
 ```
 
-## Generating the headers from the JSON grammar
+## Generating headers from the JSON grammar for the SPIR-V core instruction set
 
 This will generally be done by Khronos, for a change to the JSON grammar.
 However, the project for the tool to do this is included in this repository,
@@ -137,6 +137,26 @@
   and that influences the languages used, for legacy reasons
 - the C++ structures built may similarly include more than strictly necessary, for the same reason
 
+## Generating C headers for extended instruction sets
+
+The [GLSL.std.450.h](include/spirv/unified1/GLSL.std.450.h)
+and [OpenCL.std.h](include/spirv/unified1/OpenCL.std.h) extended instruction set headers
+are maintained manually.
+
+The C/C++ header for each of the other extended instruction sets
+is generated from the corresponding JSON grammar file.  For example, the
+[OpenCLDebugInfo100.h](include/spirv/unified1/OpenCLDebugInfo100.h) header
+is generated from the
+[extinst.opencl.debuginfo.100.grammar.json](include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json)
+grammar file.
+
+To generate these C/C++ headers, first make sure `python3` is in your PATH, then
+invoke the build script as follows:
+```
+cd tools/buildHeaders
+python3 bin/makeExtinstHeaders.py
+```
+
 ## FAQ
 
 * *How are different versions published?*
diff --git a/include/spirv/spir-v.xml b/include/spirv/spir-v.xml
index bcffd61..2fac9c5 100644
--- a/include/spirv/spir-v.xml
+++ b/include/spirv/spir-v.xml
@@ -139,8 +139,8 @@
 
     <!-- Reserved loop control bits -->
     <ids type="LoopControl" start="0" end="15" vendor="Khronos" comment="Reserved LoopControl bits, not available to vendors - see the SPIR-V Specification"/>
-    <ids type="LoopControl" start="16" end="19" vendor="Intel" comment="Contact michael.kinsner@intel.com"/>
-    <ids type="LoopControl" start="20" end="30" comment="Unreserved bits reservable for use by vendors"/>
+    <ids type="LoopControl" start="16" end="22" vendor="Intel" comment="Contact michael.kinsner@intel.com"/>
+    <ids type="LoopControl" start="23" end="30" comment="Unreserved bits reservable for use by vendors"/>
     <ids type="LoopControl" start="31" end="31" vendor="Khronos" comment="Reserved LoopControl bit, not available to vendors"/>
 
 </registry>
diff --git a/include/spirv/unified1/AMD_gcn_shader.h b/include/spirv/unified1/AMD_gcn_shader.h
new file mode 100644
index 0000000..80165ae
--- /dev/null
+++ b/include/spirv/unified1/AMD_gcn_shader.h
@@ -0,0 +1,52 @@
+// Copyright (c) 2020 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+// 
+
+#ifndef SPIRV_UNIFIED1_AMD_gcn_shader_H_
+#define SPIRV_UNIFIED1_AMD_gcn_shader_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    AMD_gcn_shaderRevision = 2,
+    AMD_gcn_shaderRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum AMD_gcn_shaderInstructions {
+    AMD_gcn_shaderCubeFaceIndexAMD = 1,
+    AMD_gcn_shaderCubeFaceCoordAMD = 2,
+    AMD_gcn_shaderTimeAMD = 3,
+    AMD_gcn_shaderInstructionsMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_AMD_gcn_shader_H_
diff --git a/include/spirv/unified1/AMD_shader_ballot.h b/include/spirv/unified1/AMD_shader_ballot.h
new file mode 100644
index 0000000..8a8bb6e
--- /dev/null
+++ b/include/spirv/unified1/AMD_shader_ballot.h
@@ -0,0 +1,53 @@
+// Copyright (c) 2020 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+// 
+
+#ifndef SPIRV_UNIFIED1_AMD_shader_ballot_H_
+#define SPIRV_UNIFIED1_AMD_shader_ballot_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    AMD_shader_ballotRevision = 5,
+    AMD_shader_ballotRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum AMD_shader_ballotInstructions {
+    AMD_shader_ballotSwizzleInvocationsAMD = 1,
+    AMD_shader_ballotSwizzleInvocationsMaskedAMD = 2,
+    AMD_shader_ballotWriteInvocationAMD = 3,
+    AMD_shader_ballotMbcntAMD = 4,
+    AMD_shader_ballotInstructionsMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_AMD_shader_ballot_H_
diff --git a/include/spirv/unified1/AMD_shader_explicit_vertex_parameter.h b/include/spirv/unified1/AMD_shader_explicit_vertex_parameter.h
new file mode 100644
index 0000000..12b6480
--- /dev/null
+++ b/include/spirv/unified1/AMD_shader_explicit_vertex_parameter.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2020 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+// 
+
+#ifndef SPIRV_UNIFIED1_AMD_shader_explicit_vertex_parameter_H_
+#define SPIRV_UNIFIED1_AMD_shader_explicit_vertex_parameter_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    AMD_shader_explicit_vertex_parameterRevision = 4,
+    AMD_shader_explicit_vertex_parameterRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum AMD_shader_explicit_vertex_parameterInstructions {
+    AMD_shader_explicit_vertex_parameterInterpolateAtVertexAMD = 1,
+    AMD_shader_explicit_vertex_parameterInstructionsMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_AMD_shader_explicit_vertex_parameter_H_
diff --git a/include/spirv/unified1/AMD_shader_trinary_minmax.h b/include/spirv/unified1/AMD_shader_trinary_minmax.h
new file mode 100644
index 0000000..1b14997
--- /dev/null
+++ b/include/spirv/unified1/AMD_shader_trinary_minmax.h
@@ -0,0 +1,58 @@
+// Copyright (c) 2020 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+// 
+
+#ifndef SPIRV_UNIFIED1_AMD_shader_trinary_minmax_H_
+#define SPIRV_UNIFIED1_AMD_shader_trinary_minmax_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    AMD_shader_trinary_minmaxRevision = 4,
+    AMD_shader_trinary_minmaxRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum AMD_shader_trinary_minmaxInstructions {
+    AMD_shader_trinary_minmaxFMin3AMD = 1,
+    AMD_shader_trinary_minmaxUMin3AMD = 2,
+    AMD_shader_trinary_minmaxSMin3AMD = 3,
+    AMD_shader_trinary_minmaxFMax3AMD = 4,
+    AMD_shader_trinary_minmaxUMax3AMD = 5,
+    AMD_shader_trinary_minmaxSMax3AMD = 6,
+    AMD_shader_trinary_minmaxFMid3AMD = 7,
+    AMD_shader_trinary_minmaxUMid3AMD = 8,
+    AMD_shader_trinary_minmaxSMid3AMD = 9,
+    AMD_shader_trinary_minmaxInstructionsMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_AMD_shader_trinary_minmax_H_
diff --git a/include/spirv/unified1/DebugInfo.h b/include/spirv/unified1/DebugInfo.h
new file mode 100644
index 0000000..c50a131
--- /dev/null
+++ b/include/spirv/unified1/DebugInfo.h
@@ -0,0 +1,143 @@
+// Copyright (c) 2017 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and/or associated documentation files (the "Materials"),
+// to deal in the Materials without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Materials, and to permit persons to whom the
+// Materials are furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS
+// STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND
+// HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/ 
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS
+// IN THE MATERIALS.
+
+#ifndef SPIRV_UNIFIED1_DebugInfo_H_
+#define SPIRV_UNIFIED1_DebugInfo_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    DebugInfoVersion = 100,
+    DebugInfoVersion_BitWidthPadding = 0x7fffffff
+};
+enum {
+    DebugInfoRevision = 1,
+    DebugInfoRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum DebugInfoInstructions {
+    DebugInfoDebugInfoNone = 0,
+    DebugInfoDebugCompilationUnit = 1,
+    DebugInfoDebugTypeBasic = 2,
+    DebugInfoDebugTypePointer = 3,
+    DebugInfoDebugTypeQualifier = 4,
+    DebugInfoDebugTypeArray = 5,
+    DebugInfoDebugTypeVector = 6,
+    DebugInfoDebugTypedef = 7,
+    DebugInfoDebugTypeFunction = 8,
+    DebugInfoDebugTypeEnum = 9,
+    DebugInfoDebugTypeComposite = 10,
+    DebugInfoDebugTypeMember = 11,
+    DebugInfoDebugTypeInheritance = 12,
+    DebugInfoDebugTypePtrToMember = 13,
+    DebugInfoDebugTypeTemplate = 14,
+    DebugInfoDebugTypeTemplateParameter = 15,
+    DebugInfoDebugTypeTemplateTemplateParameter = 16,
+    DebugInfoDebugTypeTemplateParameterPack = 17,
+    DebugInfoDebugGlobalVariable = 18,
+    DebugInfoDebugFunctionDeclaration = 19,
+    DebugInfoDebugFunction = 20,
+    DebugInfoDebugLexicalBlock = 21,
+    DebugInfoDebugLexicalBlockDiscriminator = 22,
+    DebugInfoDebugScope = 23,
+    DebugInfoDebugNoScope = 24,
+    DebugInfoDebugInlinedAt = 25,
+    DebugInfoDebugLocalVariable = 26,
+    DebugInfoDebugInlinedVariable = 27,
+    DebugInfoDebugDeclare = 28,
+    DebugInfoDebugValue = 29,
+    DebugInfoDebugOperation = 30,
+    DebugInfoDebugExpression = 31,
+    DebugInfoDebugMacroDef = 32,
+    DebugInfoDebugMacroUndef = 33,
+    DebugInfoInstructionsMax = 0x7fffffff
+};
+
+
+enum DebugInfoDebugInfoFlags {
+    DebugInfoFlagIsProtected = 0x01,
+    DebugInfoFlagIsPrivate = 0x02,
+    DebugInfoFlagIsPublic = 0x03,
+    DebugInfoFlagIsLocal = 0x04,
+    DebugInfoFlagIsDefinition = 0x08,
+    DebugInfoFlagFwdDecl = 0x10,
+    DebugInfoFlagArtificial = 0x20,
+    DebugInfoFlagExplicit = 0x40,
+    DebugInfoFlagPrototyped = 0x80,
+    DebugInfoFlagObjectPointer = 0x100,
+    DebugInfoFlagStaticMember = 0x200,
+    DebugInfoFlagIndirectVariable = 0x400,
+    DebugInfoFlagLValueReference = 0x800,
+    DebugInfoFlagRValueReference = 0x1000,
+    DebugInfoFlagIsOptimized = 0x2000,
+    DebugInfoDebugInfoFlagsMax = 0x7fffffff
+};
+
+enum DebugInfoDebugBaseTypeAttributeEncoding {
+    DebugInfoUnspecified = 0,
+    DebugInfoAddress = 1,
+    DebugInfoBoolean = 2,
+    DebugInfoFloat = 4,
+    DebugInfoSigned = 5,
+    DebugInfoSignedChar = 6,
+    DebugInfoUnsigned = 7,
+    DebugInfoUnsignedChar = 8,
+    DebugInfoDebugBaseTypeAttributeEncodingMax = 0x7fffffff
+};
+
+enum DebugInfoDebugCompositeType {
+    DebugInfoClass = 0,
+    DebugInfoStructure = 1,
+    DebugInfoUnion = 2,
+    DebugInfoDebugCompositeTypeMax = 0x7fffffff
+};
+
+enum DebugInfoDebugTypeQualifier {
+    DebugInfoConstType = 0,
+    DebugInfoVolatileType = 1,
+    DebugInfoRestrictType = 2,
+    DebugInfoDebugTypeQualifierMax = 0x7fffffff
+};
+
+enum DebugInfoDebugOperation {
+    DebugInfoDeref = 0,
+    DebugInfoPlus = 1,
+    DebugInfoMinus = 2,
+    DebugInfoPlusUconst = 3,
+    DebugInfoBitPiece = 4,
+    DebugInfoSwap = 5,
+    DebugInfoXderef = 6,
+    DebugInfoStackValue = 7,
+    DebugInfoConstu = 8,
+    DebugInfoDebugOperationMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_DebugInfo_H_
diff --git a/include/spirv/unified1/NonSemanticDebugPrintf.h b/include/spirv/unified1/NonSemanticDebugPrintf.h
new file mode 100644
index 0000000..83796d7
--- /dev/null
+++ b/include/spirv/unified1/NonSemanticDebugPrintf.h
@@ -0,0 +1,50 @@
+// Copyright (c) 2020 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and/or associated documentation files (the
+// "Materials"), to deal in the Materials without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Materials, and to
+// permit persons to whom the Materials are furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+//    https://www.khronos.org/registry/
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+// 
+
+#ifndef SPIRV_UNIFIED1_NonSemanticDebugPrintf_H_
+#define SPIRV_UNIFIED1_NonSemanticDebugPrintf_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    NonSemanticDebugPrintfRevision = 1,
+    NonSemanticDebugPrintfRevision_BitWidthPadding = 0x7fffffff
+};
+
+enum NonSemanticDebugPrintfInstructions {
+    NonSemanticDebugPrintfDebugPrintf = 1,
+    NonSemanticDebugPrintfInstructionsMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_NonSemanticDebugPrintf_H_
diff --git a/include/spirv/unified1/OpenCLDebugInfo100.h b/include/spirv/unified1/OpenCLDebugInfo100.h
new file mode 100644
index 0000000..1149980
--- /dev/null
+++ b/include/spirv/unified1/OpenCLDebugInfo100.h
@@ -0,0 +1,156 @@
+// Copyright (c) 2018 The Khronos Group Inc.
+// 
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and/or associated documentation files (the "Materials"),
+// to deal in the Materials without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Materials, and to permit persons to whom the
+// Materials are furnished to do so, subject to the following conditions:
+// 
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Materials.
+// 
+// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS
+// STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND
+// HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/ 
+// 
+// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS
+// IN THE MATERIALS.
+
+#ifndef SPIRV_UNIFIED1_OpenCLDebugInfo100_H_
+#define SPIRV_UNIFIED1_OpenCLDebugInfo100_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+enum {
+    OpenCLDebugInfo100Version = 200,
+    OpenCLDebugInfo100Version_BitWidthPadding = 0x7fffffff
+};
+enum {
+    OpenCLDebugInfo100Revision = 2,
+    OpenCLDebugInfo100Revision_BitWidthPadding = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100Instructions {
+    OpenCLDebugInfo100DebugInfoNone = 0,
+    OpenCLDebugInfo100DebugCompilationUnit = 1,
+    OpenCLDebugInfo100DebugTypeBasic = 2,
+    OpenCLDebugInfo100DebugTypePointer = 3,
+    OpenCLDebugInfo100DebugTypeQualifier = 4,
+    OpenCLDebugInfo100DebugTypeArray = 5,
+    OpenCLDebugInfo100DebugTypeVector = 6,
+    OpenCLDebugInfo100DebugTypedef = 7,
+    OpenCLDebugInfo100DebugTypeFunction = 8,
+    OpenCLDebugInfo100DebugTypeEnum = 9,
+    OpenCLDebugInfo100DebugTypeComposite = 10,
+    OpenCLDebugInfo100DebugTypeMember = 11,
+    OpenCLDebugInfo100DebugTypeInheritance = 12,
+    OpenCLDebugInfo100DebugTypePtrToMember = 13,
+    OpenCLDebugInfo100DebugTypeTemplate = 14,
+    OpenCLDebugInfo100DebugTypeTemplateParameter = 15,
+    OpenCLDebugInfo100DebugTypeTemplateTemplateParameter = 16,
+    OpenCLDebugInfo100DebugTypeTemplateParameterPack = 17,
+    OpenCLDebugInfo100DebugGlobalVariable = 18,
+    OpenCLDebugInfo100DebugFunctionDeclaration = 19,
+    OpenCLDebugInfo100DebugFunction = 20,
+    OpenCLDebugInfo100DebugLexicalBlock = 21,
+    OpenCLDebugInfo100DebugLexicalBlockDiscriminator = 22,
+    OpenCLDebugInfo100DebugScope = 23,
+    OpenCLDebugInfo100DebugNoScope = 24,
+    OpenCLDebugInfo100DebugInlinedAt = 25,
+    OpenCLDebugInfo100DebugLocalVariable = 26,
+    OpenCLDebugInfo100DebugInlinedVariable = 27,
+    OpenCLDebugInfo100DebugDeclare = 28,
+    OpenCLDebugInfo100DebugValue = 29,
+    OpenCLDebugInfo100DebugOperation = 30,
+    OpenCLDebugInfo100DebugExpression = 31,
+    OpenCLDebugInfo100DebugMacroDef = 32,
+    OpenCLDebugInfo100DebugMacroUndef = 33,
+    OpenCLDebugInfo100DebugImportedEntity = 34,
+    OpenCLDebugInfo100DebugSource = 35,
+    OpenCLDebugInfo100InstructionsMax = 0x7fffffff
+};
+
+
+enum OpenCLDebugInfo100DebugInfoFlags {
+    OpenCLDebugInfo100FlagIsProtected = 0x01,
+    OpenCLDebugInfo100FlagIsPrivate = 0x02,
+    OpenCLDebugInfo100FlagIsPublic = 0x03,
+    OpenCLDebugInfo100FlagIsLocal = 0x04,
+    OpenCLDebugInfo100FlagIsDefinition = 0x08,
+    OpenCLDebugInfo100FlagFwdDecl = 0x10,
+    OpenCLDebugInfo100FlagArtificial = 0x20,
+    OpenCLDebugInfo100FlagExplicit = 0x40,
+    OpenCLDebugInfo100FlagPrototyped = 0x80,
+    OpenCLDebugInfo100FlagObjectPointer = 0x100,
+    OpenCLDebugInfo100FlagStaticMember = 0x200,
+    OpenCLDebugInfo100FlagIndirectVariable = 0x400,
+    OpenCLDebugInfo100FlagLValueReference = 0x800,
+    OpenCLDebugInfo100FlagRValueReference = 0x1000,
+    OpenCLDebugInfo100FlagIsOptimized = 0x2000,
+    OpenCLDebugInfo100FlagIsEnumClass = 0x4000,
+    OpenCLDebugInfo100FlagTypePassByValue = 0x8000,
+    OpenCLDebugInfo100FlagTypePassByReference = 0x10000,
+    OpenCLDebugInfo100DebugInfoFlagsMax = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100DebugBaseTypeAttributeEncoding {
+    OpenCLDebugInfo100Unspecified = 0,
+    OpenCLDebugInfo100Address = 1,
+    OpenCLDebugInfo100Boolean = 2,
+    OpenCLDebugInfo100Float = 3,
+    OpenCLDebugInfo100Signed = 4,
+    OpenCLDebugInfo100SignedChar = 5,
+    OpenCLDebugInfo100Unsigned = 6,
+    OpenCLDebugInfo100UnsignedChar = 7,
+    OpenCLDebugInfo100DebugBaseTypeAttributeEncodingMax = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100DebugCompositeType {
+    OpenCLDebugInfo100Class = 0,
+    OpenCLDebugInfo100Structure = 1,
+    OpenCLDebugInfo100Union = 2,
+    OpenCLDebugInfo100DebugCompositeTypeMax = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100DebugTypeQualifier {
+    OpenCLDebugInfo100ConstType = 0,
+    OpenCLDebugInfo100VolatileType = 1,
+    OpenCLDebugInfo100RestrictType = 2,
+    OpenCLDebugInfo100AtomicType = 3,
+    OpenCLDebugInfo100DebugTypeQualifierMax = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100DebugOperation {
+    OpenCLDebugInfo100Deref = 0,
+    OpenCLDebugInfo100Plus = 1,
+    OpenCLDebugInfo100Minus = 2,
+    OpenCLDebugInfo100PlusUconst = 3,
+    OpenCLDebugInfo100BitPiece = 4,
+    OpenCLDebugInfo100Swap = 5,
+    OpenCLDebugInfo100Xderef = 6,
+    OpenCLDebugInfo100StackValue = 7,
+    OpenCLDebugInfo100Constu = 8,
+    OpenCLDebugInfo100Fragment = 9,
+    OpenCLDebugInfo100DebugOperationMax = 0x7fffffff
+};
+
+enum OpenCLDebugInfo100DebugImportedEntity {
+    OpenCLDebugInfo100ImportedModule = 0,
+    OpenCLDebugInfo100ImportedDeclaration = 1,
+    OpenCLDebugInfo100DebugImportedEntityMax = 0x7fffffff
+};
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SPIRV_UNIFIED1_OpenCLDebugInfo100_H_
diff --git a/include/spirv/unified1/extinst.debuginfo.grammar.json b/include/spirv/unified1/extinst.debuginfo.grammar.json
new file mode 100644
index 0000000..9212f6f
--- /dev/null
+++ b/include/spirv/unified1/extinst.debuginfo.grammar.json
@@ -0,0 +1,568 @@
+{
+  "copyright" : [
+    "Copyright (c) 2017 The Khronos Group Inc.",
+    "",
+    "Permission is hereby granted, free of charge, to any person obtaining a copy",
+    "of this software and/or associated documentation files (the \"Materials\"),",
+    "to deal in the Materials without restriction, including without limitation",
+    "the rights to use, copy, modify, merge, publish, distribute, sublicense,",
+    "and/or sell copies of the Materials, and to permit persons to whom the",
+    "Materials are furnished to do so, subject to the following conditions:",
+    "",
+    "The above copyright notice and this permission notice shall be included in",
+    "all copies or substantial portions of the Materials.",
+    "",
+    "MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS",
+    "STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND",
+    "HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/ ",
+    "",
+    "THE MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS",
+    "OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,",
+    "FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL",
+    "THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER",
+    "LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING",
+    "FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS",
+    "IN THE MATERIALS."
+  ],
+  "version" : 100,
+  "revision" : 1,
+  "instructions" : [
+    {
+      "opname" : "DebugInfoNone",
+      "opcode" : 0
+    },
+    {
+      "opname" : "DebugCompilationUnit",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Version'" },
+        { "kind" : "LiteralInteger", "name" : "'DWARF Version'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeBasic",
+      "opcode" : 2,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Size'" },
+        { "kind" : "DebugBaseTypeAttributeEncoding", "name" : "'Encoding'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypePointer",
+      "opcode" : 3,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Base Type'" },
+        { "kind" : "StorageClass", "name" : "'Storage Class'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Literal Flags'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeQualifier",
+      "opcode" : 4,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Base Type'" },
+        { "kind" : "DebugTypeQualifier", "name" : "'Type Qualifier'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeArray",
+      "opcode" : 5,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Base Type'" },
+        { "kind" : "IdRef", "name" : "'Component Counts'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeVector",
+      "opcode" : 6,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Base Type'" },
+        { "kind" : "LiteralInteger", "name" : "'Component Count'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypedef",
+      "opcode" : 7,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Base Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeFunction",
+      "opcode" : 8,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Return Type'" },
+        { "kind" : "IdRef", "name" : "'Paramter Types'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeEnum",
+      "opcode" : 9,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Underlying Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Size'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" },
+        { "kind" : "PairIdRefIdRef", "name" : "'Value, Name, Value, Name, ...'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeComposite",
+      "opcode" : 10,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "DebugCompositeType", "name" : "'Tag'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Size'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" },
+        { "kind" : "IdRef", "name" : "'Members'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeMember",
+      "opcode" : 11,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Offset'" },
+        { "kind" : "IdRef", "name" : "'Size'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" },
+        { "kind" : "IdRef", "name" : "'Value'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeInheritance",
+      "opcode" : 12,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Child'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Offset'" },
+        { "kind" : "IdRef", "name" : "'Size'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypePtrToMember",
+      "opcode" : 13,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Member Type'" },
+        { "kind" : "IdRef", "name" : "'Parent'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeTemplate",
+      "opcode" : 14,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Target'" },
+        { "kind" : "IdRef", "name" : "'Parameters'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeTemplateParameter",
+      "opcode" : 15,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Actual Type'" },
+        { "kind" : "IdRef", "name" : "'Value'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeTemplateTemplateParameter",
+      "opcode" : 16,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Template Name'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" }
+      ]
+    },
+    {
+      "opname" : "DebugTypeTemplateParameterPack",
+      "opcode" : 17,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Template Parameters'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugGlobalVariable",
+      "opcode" : 18,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Linkage Name'" },
+        { "kind" : "IdRef", "name" : "'Variable'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" },
+        { "kind" : "IdRef", "name" : "'Static Member Declaration'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugFunctionDeclaration",
+      "opcode" : 19,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Linkage Name'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" }
+      ]
+    },
+    {
+      "opname" : "DebugFunction",
+      "opcode" : 20,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Linkage Name'" },
+        { "kind" : "DebugInfoFlags", "name" : "'Flags'" },
+        { "kind" : "LiteralInteger", "name" : "'Scope Line'" },
+        { "kind" : "IdRef", "name" : "'Function'" },
+        { "kind" : "IdRef", "name" : "'Declaration'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugLexicalBlock",
+      "opcode" : 21,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "IdRef", "name" : "'Name'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugLexicalBlockDiscriminator",
+      "opcode" : 22,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Scope'" },
+        { "kind" : "LiteralInteger", "name" : "'Discriminator'" },
+        { "kind" : "IdRef", "name" : "'Parent'" }
+      ]
+    },
+    {
+      "opname" : "DebugScope",
+      "opcode" : 23,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Scope'" },
+        { "kind" : "IdRef", "name" : "'Inlined At'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugNoScope",
+      "opcode" : 24
+    },
+    {
+      "opname" : "DebugInlinedAt",
+      "opcode" : 25,
+      "operands" : [
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "IdRef", "name" : "'Scope'" },
+        { "kind" : "IdRef", "name" : "'Inlined'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugLocalVariable",
+      "opcode" : 26,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Type'" },
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "LiteralInteger", "name" : "'Column'" },
+        { "kind" : "IdRef", "name" : "'Parent'" },
+        { "kind" : "LiteralInteger", "name" : "'Arg Number'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugInlinedVariable",
+      "opcode" : 27,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Variable'" },
+        { "kind" : "IdRef", "name" : "'Inlined'" }
+      ]
+    },
+    {
+      "opname" : "DebugDeclare",
+      "opcode" : 28,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Local Variable'" },
+        { "kind" : "IdRef", "name" : "'Variable'" },
+        { "kind" : "IdRef", "name" : "'Expression'" }
+      ]
+    },
+    {
+      "opname" : "DebugValue",
+      "opcode" : 29,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Value'" },
+        { "kind" : "IdRef", "name" : "'Expression'" },
+        { "kind" : "IdRef", "name" : "'Indexes'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugOperation",
+      "opcode" : 30,
+      "operands" : [
+        { "kind" : "DebugOperation", "name" : "'OpCode'" },
+        { "kind" : "LiteralInteger", "name" : "'Operands ...'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugExpression",
+      "opcode" : 31,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Operands ...'", "quantifier" : "*" }
+      ]
+    },
+    {
+      "opname" : "DebugMacroDef",
+      "opcode" : 32,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "IdRef", "name" : "'Name'" },
+        { "kind" : "IdRef", "name" : "'Value'", "quantifier" : "?" }
+      ]
+    },
+    {
+      "opname" : "DebugMacroUndef",
+      "opcode" : 33,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'Source'" },
+        { "kind" : "LiteralInteger", "name" : "'Line'" },
+        { "kind" : "IdRef", "name" : "'Macro'" }
+      ]
+    }
+  ],
+  "operand_kinds" : [
+    {
+      "category" : "BitEnum",
+      "kind" : "DebugInfoFlags",
+      "enumerants" : [
+        {
+          "enumerant" : "FlagIsProtected",
+          "value" : "0x01"
+        },
+        {
+          "enumerant" : "FlagIsPrivate",
+          "value" : "0x02"
+        },
+        {
+          "enumerant" : "FlagIsPublic",
+          "value" : "0x03"
+        },
+        {
+          "enumerant" : "FlagIsLocal",
+          "value" : "0x04"
+        },
+        {
+          "enumerant" : "FlagIsDefinition",
+          "value" : "0x08"
+        },
+        {
+          "enumerant" : "FlagFwdDecl",
+          "value" : "0x10"
+        },
+        {
+          "enumerant" : "FlagArtificial",
+          "value" : "0x20"
+        },
+        {
+          "enumerant" : "FlagExplicit",
+          "value" : "0x40"
+        },
+        {
+          "enumerant" : "FlagPrototyped",
+          "value" : "0x80"
+        },
+        {
+          "enumerant" : "FlagObjectPointer",
+          "value" : "0x100"
+        },
+        {
+          "enumerant" : "FlagStaticMember",
+          "value" : "0x200"
+        },
+        {
+          "enumerant" : "FlagIndirectVariable",
+          "value" : "0x400"
+        },
+        {
+          "enumerant" : "FlagLValueReference",
+          "value" : "0x800"
+        },
+        {
+          "enumerant" : "FlagRValueReference",
+          "value" : "0x1000"
+        },
+        {
+          "enumerant" : "FlagIsOptimized",
+          "value" : "0x2000"
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "DebugBaseTypeAttributeEncoding",
+      "enumerants" : [
+        {
+          "enumerant" : "Unspecified",
+          "value" : "0"
+        },
+        {
+          "enumerant" : "Address",
+          "value" : "1"
+        },
+        {
+          "enumerant" : "Boolean",
+          "value" : "2"
+        },
+        {
+          "enumerant" : "Float",
+          "value" : "4"
+        },
+        {
+          "enumerant" : "Signed",
+          "value" : "5"
+        },
+        {
+          "enumerant" : "SignedChar",
+          "value" : "6"
+        },
+        {
+          "enumerant" : "Unsigned",
+          "value" : "7"
+        },
+        {
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diff --git a/include/spirv/unified1/extinst.nonsemantic.debugprintf.grammar.json b/include/spirv/unified1/extinst.nonsemantic.debugprintf.grammar.json
new file mode 100644
index 0000000..71fa711
--- /dev/null
+++ b/include/spirv/unified1/extinst.nonsemantic.debugprintf.grammar.json
@@ -0,0 +1,13 @@
+{
+  "revision" : 1,
+  "instructions" : [
+    {
+      "opname" : "DebugPrintf",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef",        "name" : "'Format'" },
+        { "kind" : "IdRef",        "quantifier" : "*" }
+      ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json b/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json
new file mode 100644
index 0000000..08062be
--- /dev/null
+++ b/include/spirv/unified1/extinst.opencl.debuginfo.100.grammar.json
@@ -0,0 +1,632 @@
+{
+  "copyright" : [
+    "Copyright (c) 2018 The Khronos Group Inc.",
+    "",
+    "Permission is hereby granted, free of charge, to any person obtaining a copy",
+    "of this software and/or associated documentation files (the \"Materials\"),",
+    "to deal in the Materials without restriction, including without limitation",
+    "the rights to use, copy, modify, merge, publish, distribute, sublicense,",
+    "and/or sell copies of the Materials, and to permit persons to whom the",
+    "Materials are furnished to do so, subject to the following conditions:",
+    "",
+    "The above copyright notice and this permission notice shall be included in",
+    "all copies or substantial portions of the Materials.",
+    "",
+    "MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS KHRONOS",
+    "STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS SPECIFICATIONS AND",
+    "HEADER INFORMATION ARE LOCATED AT https://www.khronos.org/registry/ ",
+    "",
+    "THE MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS",
+    "OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,",
+    "FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL",
+    "THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER",
+    "LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING",
+    "FROM,OUT OF OR IN CONNECTION WITH THE MATERIALS OR THE USE OR OTHER DEALINGS",
+    "IN THE MATERIALS."
+  ],
+  "version" : 200,
+  "revision" : 2,
+  "instructions" : [
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+          "value" : "1"
+        },
+        {
+          "enumerant" : "Union",
+          "value" : "2"
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "DebugTypeQualifier",
+      "enumerants" : [
+        {
+          "enumerant" : "ConstType",
+          "value" : "0"
+        },
+        {
+          "enumerant" : "VolatileType",
+          "value" : "1"
+        },
+        {
+          "enumerant" : "RestrictType",
+          "value" : "2"
+        },
+        {
+          "enumerant" : "AtomicType",
+          "value" : "3"
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "DebugOperation",
+      "enumerants" : [
+        {
+          "enumerant" : "Deref",
+          "value" : "0"
+        },
+        {
+          "enumerant" : "Plus",
+          "value" : "1"
+        },
+        {
+          "enumerant" : "Minus",
+          "value" : "2"
+        },
+        {
+          "enumerant" : "PlusUconst",
+          "value" : "3",
+          "parameters" : [
+             { "kind" : "LiteralInteger" }
+          ]
+        },
+        {
+          "enumerant" : "BitPiece",
+          "value" : "4",
+          "parameters" : [
+             { "kind" : "LiteralInteger" },
+             { "kind" : "LiteralInteger" }
+          ]
+        },
+        {
+          "enumerant" : "Swap",
+          "value" : "5"
+        },
+        {
+          "enumerant" : "Xderef",
+          "value" : "6"
+        },
+        {
+          "enumerant" : "StackValue",
+          "value" : "7"
+        },
+        {
+          "enumerant" : "Constu",
+          "value" : "8",
+          "parameters" : [
+             { "kind" : "LiteralInteger" }
+          ]
+        },
+        {
+          "enumerant" : "Fragment",
+          "value" : "9",
+          "parameters" : [
+             { "kind" : "LiteralInteger" },
+             { "kind" : "LiteralInteger" }
+          ]
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "DebugImportedEntity",
+      "enumerants" : [
+        {
+          "enumerant" : "ImportedModule",
+          "value" : "0"
+        },
+        {
+          "enumerant" : "ImportedDeclaration",
+          "value" : "1"
+	}
+      ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/extinst.spv-amd-gcn-shader.grammar.json b/include/spirv/unified1/extinst.spv-amd-gcn-shader.grammar.json
new file mode 100644
index 0000000..e18251b
--- /dev/null
+++ b/include/spirv/unified1/extinst.spv-amd-gcn-shader.grammar.json
@@ -0,0 +1,26 @@
+{
+  "revision" : 2,
+  "instructions" : [
+    {
+      "opname" : "CubeFaceIndexAMD",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'P'" }
+      ],
+      "extensions" : [ "SPV_AMD_gcn_shader" ]
+    },
+    {
+      "opname" : "CubeFaceCoordAMD",
+      "opcode" : 2,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'P'" }
+      ],
+      "extensions" : [ "SPV_AMD_gcn_shader" ]
+    },
+    {
+      "opname" : "TimeAMD",
+      "opcode" : 3,
+      "extensions" : [ "SPV_AMD_gcn_shader" ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/extinst.spv-amd-shader-ballot.grammar.json b/include/spirv/unified1/extinst.spv-amd-shader-ballot.grammar.json
new file mode 100644
index 0000000..62a470e
--- /dev/null
+++ b/include/spirv/unified1/extinst.spv-amd-shader-ballot.grammar.json
@@ -0,0 +1,41 @@
+{
+  "revision" : 5,
+  "instructions" : [
+    {
+      "opname" : "SwizzleInvocationsAMD",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'data'" },
+        { "kind" : "IdRef", "name" : "'offset'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_ballot" ]
+    },
+    {
+      "opname" : "SwizzleInvocationsMaskedAMD",
+      "opcode" : 2,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'data'" },
+        { "kind" : "IdRef", "name" : "'mask'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_ballot" ]
+    },
+    {
+      "opname" : "WriteInvocationAMD",
+      "opcode" : 3,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'inputValue'" },
+        { "kind" : "IdRef", "name" : "'writeValue'" },
+        { "kind" : "IdRef", "name" : "'invocationIndex'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_ballot" ]
+    },
+    {
+      "opname" : "MbcntAMD",
+      "opcode" : 4,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'mask'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_ballot" ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/extinst.spv-amd-shader-explicit-vertex-parameter.grammar.json b/include/spirv/unified1/extinst.spv-amd-shader-explicit-vertex-parameter.grammar.json
new file mode 100644
index 0000000..e156b1b
--- /dev/null
+++ b/include/spirv/unified1/extinst.spv-amd-shader-explicit-vertex-parameter.grammar.json
@@ -0,0 +1,14 @@
+{
+  "revision" : 4,
+  "instructions" : [
+    {
+      "opname" : "InterpolateAtVertexAMD",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'interpolant'" },
+        { "kind" : "IdRef", "name" : "'vertexIdx'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_explicit_vertex_parameter" ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/extinst.spv-amd-shader-trinary-minmax.grammar.json b/include/spirv/unified1/extinst.spv-amd-shader-trinary-minmax.grammar.json
new file mode 100644
index 0000000..c681976
--- /dev/null
+++ b/include/spirv/unified1/extinst.spv-amd-shader-trinary-minmax.grammar.json
@@ -0,0 +1,95 @@
+{
+  "revision" : 4,
+  "instructions" : [
+    {
+      "opname" : "FMin3AMD",
+      "opcode" : 1,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "UMin3AMD",
+      "opcode" : 2,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "SMin3AMD",
+      "opcode" : 3,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "FMax3AMD",
+      "opcode" : 4,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "UMax3AMD",
+      "opcode" : 5,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "SMax3AMD",
+      "opcode" : 6,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "FMid3AMD",
+      "opcode" : 7,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "UMid3AMD",
+      "opcode" : 8,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    },
+    {
+      "opname" : "SMid3AMD",
+      "opcode" : 9,
+      "operands" : [
+        { "kind" : "IdRef", "name" : "'x'" },
+        { "kind" : "IdRef", "name" : "'y'" },
+        { "kind" : "IdRef", "name" : "'z'" }
+      ],
+      "extensions" : [ "SPV_AMD_shader_trinary_minmax" ]
+    }
+  ]
+}
diff --git a/include/spirv/unified1/spirv.core.grammar.json b/include/spirv/unified1/spirv.core.grammar.json
index 45bac52..824ae4b 100644
--- a/include/spirv/unified1/spirv.core.grammar.json
+++ b/include/spirv/unified1/spirv.core.grammar.json
@@ -1,6 +1,6 @@
 {
   "copyright" : [
-    "Copyright (c) 2014-2016 The Khronos Group Inc.",
+    "Copyright (c) 2014-2020 The Khronos Group Inc.",
     "",
     "Permission is hereby granted, free of charge, to any person obtaining a copy",
     "of this software and/or associated documentation files (the \"Materials\"),",
@@ -4400,26 +4400,54 @@
         { "kind" : "IdRef", "name" : "'Hit'" },
         { "kind" : "IdRef", "name" : "'HitKind'" }
       ],
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+      "version" : "None"
+    },
+    {
+      "opname" : "OpReportIntersectionKHR",
+      "class"  : "Reserved",
+      "opcode" : 5334,
+      "operands" : [
+        { "kind" : "IdResultType" },
+        { "kind" : "IdResult" },
+        { "kind" : "IdRef", "name" : "'Hit'" },
+        { "kind" : "IdRef", "name" : "'HitKind'" }
+      ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
       "version" : "None"
     },
     {
       "opname" : "OpIgnoreIntersectionNV",
       "class"  : "Reserved",
       "opcode" : 5335,
-
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+      "version" : "None"
+    },
+    {
+      "opname" : "OpIgnoreIntersectionKHR",
+      "class"  : "Reserved",
+      "opcode" : 5335,
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
       "version" : "None"
     },
     {
       "opname" : "OpTerminateRayNV",
       "class"  : "Reserved",
       "opcode" : 5336,
-
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+      "version" : "None"
+    },
+    {
+      "opname" : "OpTerminateRayKHR",
+      "class"  : "Reserved",
+      "opcode" : 5336,
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
       "version" : "None"
     },
     {
@@ -4440,8 +4468,30 @@
         { "kind" : "IdRef", "name" : "'Ray Tmax'" },
         { "kind" : "IdRef", "name" : "'PayloadId'" }
       ],
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+      "version" : "None"
+    },
+    {
+      "opname" : "OpTraceRayKHR",
+      "class"  : "Reserved",
+      "opcode" : 5337,
+      "operands" : [
+
+        { "kind" : "IdRef", "name" : "'Accel'" },
+        { "kind" : "IdRef", "name" : "'Ray Flags'" },
+        { "kind" : "IdRef", "name" : "'Cull Mask'" },
+        { "kind" : "IdRef", "name" : "'SBT Offset'" },
+        { "kind" : "IdRef", "name" : "'SBT Stride'" },
+        { "kind" : "IdRef", "name" : "'Miss Index'" },
+        { "kind" : "IdRef", "name" : "'Ray Origin'" },
+        { "kind" : "IdRef", "name" : "'Ray Tmin'" },
+        { "kind" : "IdRef", "name" : "'Ray Direction'" },
+        { "kind" : "IdRef", "name" : "'Ray Tmax'" },
+        { "kind" : "IdRef", "name" : "'PayloadId'" }
+      ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
       "version" : "None"
     },
     {
@@ -4451,11 +4501,479 @@
       "operands" : [
         { "kind" : "IdResult" }
       ],
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR", "RayQueryProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing", "SPV_KHR_ray_query" ],
       "version" : "None"
     },
     {
+      "opname" : "OpTypeAccelerationStructureKHR",
+      "class"  : "Reserved",
+      "opcode" : 5341,
+      "operands" : [
+        { "kind" : "IdResult" }
+      ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR", "RayQueryProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing", "SPV_KHR_ray_query" ],
+      "version" : "None"
+    },
+    {
+        "opname" : "OpTypeRayQueryProvisionalKHR",
+        "class" : "Reserved",
+        "opcode" : 4472,
+        "operands" : [
+            { "kind" : "IdResult" }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryInitializeKHR",
+        "class" : "Reserved",
+        "opcode" : 4473,
+        "operands" : [
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Accel'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayFlags'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'CullMask'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayOrigin'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayTMin'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayDirection'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayTMax'"
+            }
+
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryTerminateKHR",
+        "class" : "Reserved",
+        "opcode" : 4474,
+        "operands" : [
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGenerateIntersectionKHR",
+        "class" : "Reserved",
+        "opcode" : 4475,
+        "operands" : [
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'HitT'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryConfirmIntersectionKHR",
+        "class" : "Reserved",
+        "opcode" : 4476,
+        "operands" : [
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryProceedKHR",
+        "class" : "Reserved",
+        "opcode" : 4477,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionTypeKHR",
+        "class" : "Reserved",
+        "opcode" : 4479,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetRayTMinKHR",
+        "class" : "Reserved",
+        "opcode" : 6016,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetRayFlagsKHR",
+        "class" : "Reserved",
+        "opcode" : 6017,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionTKHR",
+        "class" : "Reserved",
+        "opcode" : 6018,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionInstanceCustomIndexKHR",
+        "class" : "Reserved",
+        "opcode" : 6019,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionInstanceIdKHR",
+        "class" : "Reserved",
+        "opcode" : 6020,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR",
+        "class" : "Reserved",
+        "opcode" : 6021,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionGeometryIndexKHR",
+        "class" : "Reserved",
+        "opcode" : 6022,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionPrimitiveIndexKHR",
+        "class" : "Reserved",
+        "opcode" : 6023,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionBarycentricsKHR",
+        "class" : "Reserved",
+        "opcode" : 6024,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionFrontFaceKHR",
+        "class" : "Reserved",
+        "opcode" : 6025,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionCandidateAABBOpaqueKHR",
+        "class" : "Reserved",
+        "opcode" : 6026,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionObjectRayDirectionKHR",
+        "class" : "Reserved",
+        "opcode" : 6027,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionObjectRayOriginKHR",
+        "class" : "Reserved",
+        "opcode" : 6028,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetWorldRayDirectionKHR",
+        "class" : "Reserved",
+        "opcode" : 6029,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+
+    {
+        "opname" : "OpRayQueryGetWorldRayOriginKHR",
+        "class" : "Reserved",
+        "opcode" : 6030,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionObjectToWorldKHR",
+        "class" : "Reserved",
+        "opcode" : 6031,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+            {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
+        "opname" : "OpRayQueryGetIntersectionWorldToObjectKHR",
+        "class" : "Reserved",
+        "opcode" : 6032,
+        "operands" : [
+            { "kind" : "IdResultType" },
+            { "kind" : "IdResult" },
+            {
+                "kind" : "IdRef",
+                "name" : "'RayQuery'"
+            },
+             {
+                "kind" : "IdRef",
+                "name" : "'Intersection'"
+            }
+        ],
+        "capabilities" : [ "RayQueryProvisionalKHR" ],
+        "extensions" : [ "SPV_KHR_ray_query" ],
+        "version" : "None"
+    },
+    {
       "opname" : "OpExecuteCallableNV",
       "class"  : "Reserved",
       "opcode" : 5344,
@@ -4464,8 +4982,21 @@
         { "kind" : "IdRef", "name" : "'SBT Index'" },
         { "kind" : "IdRef", "name" : "'Callable DataId'" }
       ],
-      "capabilities" : [ "RayTracingNV" ],
-      "extensions" : [ "SPV_NV_ray_tracing" ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+      "version" : "None"
+    },
+    {
+      "opname" : "OpExecuteCallableKHR",
+      "class"  : "Reserved",
+      "opcode" : 5344,
+      "operands" : [
+
+        { "kind" : "IdRef", "name" : "'SBT Index'" },
+        { "kind" : "IdRef", "name" : "'Callable DataId'" }
+      ],
+      "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+      "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
       "version" : "None"
     },
     {
@@ -6943,6 +7474,67 @@
       ]
     },
     {
+      "category" : "BitEnum",
+      "kind" : "RayFlags",
+      "enumerants" : [
+        {
+          "enumerant" : "NoneKHR",
+          "value" : "0x0000",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "OpaqueKHR",
+          "value" : "0x0001",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "NoOpaqueKHR",
+          "value" : "0x0002",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "TerminateOnFirstHitKHR",
+          "value" : "0x0004",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "SkipClosestHitShaderKHR",
+          "value" : "0x0008",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "CullBackFacingTrianglesKHR",
+          "value" : "0x0010",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "CullFrontFacingTrianglesKHR",
+          "value" : "0x0020",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "CullOpaqueKHR",
+          "value" : "0x0040",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "CullNoOpaqueKHR",
+          "value" : "0x0080",
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "SkipTrianglesKHR",
+          "value" : "0x0100",
+          "capabilities" : [ "RayTraversalPrimitiveCullingProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "SkipAABBsKHR",
+          "value" : "0x0200",
+          "capabilities" : [ "RayTraversalPrimitiveCullingProvisionalKHR" ]
+        }
+      ]
+    },
+    {
       "category" : "ValueEnum",
       "kind" : "SourceLanguage",
       "enumerants" : [
@@ -7026,37 +7618,73 @@
         {
           "enumerant" : "RayGenerationNV",
           "value" : 5313,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayGenerationKHR",
+          "value" : 5313,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "IntersectionNV",
           "value" : 5314,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "IntersectionKHR",
+          "value" : 5314,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "AnyHitNV",
           "value" : 5315,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "AnyHitKHR",
+          "value" : 5315,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "ClosestHitNV",
           "value" : 5316,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "ClosestHitKHR",
+          "value" : 5316,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "MissNV",
           "value" : 5317,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "MissKHR",
+          "value" : 5317,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "CallableNV",
           "value" : 5318,
-          "capabilities" : [ "RayTracingNV" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "CallableKHR",
+          "value" : 5318,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         }
       ]
@@ -7581,43 +8209,85 @@
         {
           "enumerant" : "CallableDataNV",
           "value" : 5328,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "CallableDataKHR",
+          "value" : 5328,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "IncomingCallableDataNV",
           "value" : 5329,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "IncomingCallableDataKHR",
+          "value" : 5329,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "RayPayloadNV",
           "value" : 5338,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayPayloadKHR",
+          "value" : 5338,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "HitAttributeNV",
           "value" : 5339,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "HitAttributeKHR",
+          "value" : 5339,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "IncomingRayPayloadNV",
           "value" : 5342,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "IncomingRayPayloadKHR",
+          "value" : 5342,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
           "enumerant" : "ShaderRecordBufferNV",
           "value" : 5343,
-          "extensions" : [ "SPV_NV_ray_tracing" ],
-          "capabilities" : [ "RayTracingNV" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "ShaderRecordBufferKHR",
+          "value" : 5343,
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
           "version" : "None"
         },
         {
@@ -8735,7 +9405,7 @@
         {
           "enumerant" : "PrimitiveId",
           "value" : 7,
-          "capabilities" : [ "Geometry", "Tessellation", "RayTracingNV" ]
+          "capabilities" : [ "Geometry", "Tessellation", "RayTracingNV", "RayTracingProvisionalKHR" ]
         },
         {
           "enumerant" : "InvocationId",
@@ -9193,99 +9863,204 @@
         {
           "enumerant" : "LaunchIdNV",
           "value" : 5319,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "LaunchIdKHR",
+          "value" : 5319,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "LaunchSizeNV",
           "value" : 5320,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "LaunchSizeKHR",
+          "value" : 5320,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "WorldRayOriginNV",
           "value" : 5321,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "WorldRayOriginKHR",
+          "value" : 5321,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "WorldRayDirectionNV",
           "value" : 5322,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "WorldRayDirectionKHR",
+          "value" : 5322,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "ObjectRayOriginNV",
           "value" : 5323,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "ObjectRayOriginKHR",
+          "value" : 5323,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "ObjectRayDirectionNV",
           "value" : 5324,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "ObjectRayDirectionKHR",
+          "value" : 5324,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "RayTminNV",
           "value" : 5325,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayTminKHR",
+          "value" : 5325,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "RayTmaxNV",
           "value" : 5326,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayTmaxKHR",
+          "value" : 5326,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "InstanceCustomIndexNV",
           "value" : 5327,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "InstanceCustomIndexKHR",
+          "value" : 5327,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "ObjectToWorldNV",
           "value" : 5330,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "ObjectToWorldKHR",
+          "value" : 5330,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "WorldToObjectNV",
           "value" : 5331,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "WorldToObjectKHR",
+          "value" : 5331,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "HitTNV",
           "value" : 5332,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "HitTKHR",
+          "value" : 5332,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "HitKindNV",
           "value" : 5333,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "HitKindKHR",
+          "value" : 5333,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
           "enumerant" : "IncomingRayFlagsNV",
           "value" : 5351,
-          "capabilities" : [ "RayTracingNV" ],
-          "extensions" : [ "SPV_NV_ray_tracing" ],
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "IncomingRayFlagsKHR",
+          "value" : 5351,
+          "capabilities" : [ "RayTracingNV" , "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_NV_ray_tracing" , "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayGeometryIndexKHR",
+          "value" : 5352,
+          "capabilities" : [ "RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_KHR_ray_tracing" ],
           "version" : "None"
         },
         {
@@ -9353,6 +10128,11 @@
           "value" : 5,
           "capabilities" : [ "VulkanMemoryModel" ],
           "version" : "1.5"
+        },
+        {
+          "enumerant" : "ShaderCallKHR",
+          "value" : 6,
+          "capabilities" : [ "RayTracingProvisionalKHR" ]
         }
       ]
     },
@@ -9925,6 +10705,20 @@
           "version" : "1.4"
         },
         {
+          "enumerant" : "RayQueryProvisionalKHR",
+          "value" : 4471,
+          "capabilities" : [ "Shader" ],
+          "extensions" : [ "SPV_KHR_ray_query" ],
+          "version" : "None"
+        },
+        {
+          "enumerant" : "RayTraversalPrimitiveCullingProvisionalKHR",
+          "value" : 4478,
+          "capabilities" : [ "RayQueryProvisionalKHR","RayTracingProvisionalKHR" ],
+          "extensions" : [ "SPV_KHR_ray_query","SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
           "enumerant" : "Float16ImageAMD",
           "value" : 5008,
           "capabilities" : [ "Shader" ],
@@ -10273,6 +11067,13 @@
           "version" : "None"
         },
         {
+          "enumerant" : "RayTracingProvisionalKHR",
+          "value" : 5353,
+          "capabilities" : [ "Shader" ],
+          "extensions" : [ "SPV_KHR_ray_tracing" ],
+          "version" : "None"
+        },
+        {
           "enumerant" : "CooperativeMatrixNV",
           "value" : 5357,
           "capabilities" : [ "Shader" ],
@@ -10366,6 +11167,59 @@
       ]
     },
     {
+      "category" : "ValueEnum",
+      "kind" : "RayQueryIntersection",
+      "enumerants" : [
+        {
+          "enumerant" : "RayQueryCandidateIntersectionKHR",
+          "value" : 0,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "RayQueryCommittedIntersectionKHR",
+          "value" : 1,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "RayQueryCommittedIntersectionType",
+      "enumerants" : [
+        {
+          "enumerant" : "RayQueryCommittedIntersectionNoneKHR",
+          "value" : 0,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "RayQueryCommittedIntersectionTriangleKHR",
+          "value" : 1,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "RayQueryCommittedIntersectionGeneratedKHR",
+          "value" : 2,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        }
+      ]
+    },
+    {
+      "category" : "ValueEnum",
+      "kind" : "RayQueryCandidateIntersectionType",
+      "enumerants" : [
+        {
+          "enumerant" : "RayQueryCandidateIntersectionTriangleKHR",
+          "value" : 0,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        },
+        {
+          "enumerant" : "RayQueryCandidateIntersectionAABBKHR",
+          "value" : 1,
+          "capabilities" : [ "RayQueryProvisionalKHR" ]
+        }
+      ]
+    },
+    {
       "category" : "Id",
       "kind" : "IdResultType",
       "doc" : "Reference to an <id> representing the result's type of the enclosing instruction"
diff --git a/include/spirv/unified1/spirv.cs b/include/spirv/unified1/spirv.cs
index 705aa59..c5ddff9 100644
--- a/include/spirv/unified1/spirv.cs
+++ b/include/spirv/unified1/spirv.cs
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -74,11 +74,17 @@
             Kernel = 6,
             TaskNV = 5267,
             MeshNV = 5268,
+            RayGenerationKHR = 5313,
             RayGenerationNV = 5313,
+            IntersectionKHR = 5314,
             IntersectionNV = 5314,
+            AnyHitKHR = 5315,
             AnyHitNV = 5315,
+            ClosestHitKHR = 5316,
             ClosestHitNV = 5316,
+            MissKHR = 5317,
             MissNV = 5317,
+            CallableKHR = 5318,
             CallableNV = 5318,
         }
 
@@ -175,11 +181,17 @@
             AtomicCounter = 10,
             Image = 11,
             StorageBuffer = 12,
+            CallableDataKHR = 5328,
             CallableDataNV = 5328,
+            IncomingCallableDataKHR = 5329,
             IncomingCallableDataNV = 5329,
+            RayPayloadKHR = 5338,
             RayPayloadNV = 5338,
+            HitAttributeKHR = 5339,
             HitAttributeNV = 5339,
+            IncomingRayPayloadKHR = 5342,
             IncomingRayPayloadNV = 5342,
+            ShaderRecordBufferKHR = 5343,
             ShaderRecordBufferNV = 5343,
             PhysicalStorageBuffer = 5349,
             PhysicalStorageBufferEXT = 5349,
@@ -556,20 +568,35 @@
             FragmentSizeNV = 5292,
             FragInvocationCountEXT = 5293,
             InvocationsPerPixelNV = 5293,
+            LaunchIdKHR = 5319,
             LaunchIdNV = 5319,
+            LaunchSizeKHR = 5320,
             LaunchSizeNV = 5320,
+            WorldRayOriginKHR = 5321,
             WorldRayOriginNV = 5321,
+            WorldRayDirectionKHR = 5322,
             WorldRayDirectionNV = 5322,
+            ObjectRayOriginKHR = 5323,
             ObjectRayOriginNV = 5323,
+            ObjectRayDirectionKHR = 5324,
             ObjectRayDirectionNV = 5324,
+            RayTminKHR = 5325,
             RayTminNV = 5325,
+            RayTmaxKHR = 5326,
             RayTmaxNV = 5326,
+            InstanceCustomIndexKHR = 5327,
             InstanceCustomIndexNV = 5327,
+            ObjectToWorldKHR = 5330,
             ObjectToWorldNV = 5330,
+            WorldToObjectKHR = 5331,
             WorldToObjectNV = 5331,
+            HitTKHR = 5332,
             HitTNV = 5332,
+            HitKindKHR = 5333,
             HitKindNV = 5333,
+            IncomingRayFlagsKHR = 5351,
             IncomingRayFlagsNV = 5351,
+            RayGeometryIndexKHR = 5352,
             WarpsPerSMNV = 5374,
             SMCountNV = 5375,
             WarpIDNV = 5376,
@@ -712,6 +739,7 @@
             Invocation = 4,
             QueueFamily = 5,
             QueueFamilyKHR = 5,
+            ShaderCallKHR = 6,
         }
 
         public enum GroupOperation
@@ -837,6 +865,8 @@
             SignedZeroInfNanPreserve = 4466,
             RoundingModeRTE = 4467,
             RoundingModeRTZ = 4468,
+            RayQueryProvisionalKHR = 4471,
+            RayTraversalPrimitiveCullingProvisionalKHR = 4478,
             Float16ImageAMD = 5008,
             ImageGatherBiasLodAMD = 5009,
             FragmentMaskAMD = 5010,
@@ -890,6 +920,7 @@
             PhysicalStorageBufferAddresses = 5347,
             PhysicalStorageBufferAddressesEXT = 5347,
             ComputeDerivativeGroupLinearNV = 5350,
+            RayTracingProvisionalKHR = 5353,
             CooperativeMatrixNV = 5357,
             FragmentShaderSampleInterlockEXT = 5363,
             FragmentShaderShadingRateInterlockEXT = 5372,
@@ -906,6 +937,54 @@
             SubgroupAvcMotionEstimationChromaINTEL = 5698,
         }
 
+        public enum RayFlagsShift
+        {
+            OpaqueKHR = 0,
+            NoOpaqueKHR = 1,
+            TerminateOnFirstHitKHR = 2,
+            SkipClosestHitShaderKHR = 3,
+            CullBackFacingTrianglesKHR = 4,
+            CullFrontFacingTrianglesKHR = 5,
+            CullOpaqueKHR = 6,
+            CullNoOpaqueKHR = 7,
+            SkipTrianglesKHR = 8,
+            SkipAABBsKHR = 9,
+        }
+
+        public enum RayFlagsMask
+        {
+            MaskNone = 0,
+            OpaqueKHR = 0x00000001,
+            NoOpaqueKHR = 0x00000002,
+            TerminateOnFirstHitKHR = 0x00000004,
+            SkipClosestHitShaderKHR = 0x00000008,
+            CullBackFacingTrianglesKHR = 0x00000010,
+            CullFrontFacingTrianglesKHR = 0x00000020,
+            CullOpaqueKHR = 0x00000040,
+            CullNoOpaqueKHR = 0x00000080,
+            SkipTrianglesKHR = 0x00000100,
+            SkipAABBsKHR = 0x00000200,
+        }
+
+        public enum RayQueryIntersection
+        {
+            RayQueryCandidateIntersectionKHR = 0,
+            RayQueryCommittedIntersectionKHR = 1,
+        }
+
+        public enum RayQueryCommittedIntersectionType
+        {
+            RayQueryCommittedIntersectionNoneKHR = 0,
+            RayQueryCommittedIntersectionTriangleKHR = 1,
+            RayQueryCommittedIntersectionGeneratedKHR = 2,
+        }
+
+        public enum RayQueryCandidateIntersectionType
+        {
+            RayQueryCandidateIntersectionTriangleKHR = 0,
+            RayQueryCandidateIntersectionAABBKHR = 1,
+        }
+
         public enum Op
         {
             OpNop = 0,
@@ -1258,6 +1337,13 @@
             OpSubgroupAnyKHR = 4429,
             OpSubgroupAllEqualKHR = 4430,
             OpSubgroupReadInvocationKHR = 4432,
+            OpTypeRayQueryProvisionalKHR = 4472,
+            OpRayQueryInitializeKHR = 4473,
+            OpRayQueryTerminateKHR = 4474,
+            OpRayQueryGenerateIntersectionKHR = 4475,
+            OpRayQueryConfirmIntersectionKHR = 4476,
+            OpRayQueryProceedKHR = 4477,
+            OpRayQueryGetIntersectionTypeKHR = 4479,
             OpGroupIAddNonUniformAMD = 5000,
             OpGroupFAddNonUniformAMD = 5001,
             OpGroupFMinNonUniformAMD = 5002,
@@ -1272,11 +1358,17 @@
             OpImageSampleFootprintNV = 5283,
             OpGroupNonUniformPartitionNV = 5296,
             OpWritePackedPrimitiveIndices4x8NV = 5299,
+            OpReportIntersectionKHR = 5334,
             OpReportIntersectionNV = 5334,
+            OpIgnoreIntersectionKHR = 5335,
             OpIgnoreIntersectionNV = 5335,
+            OpTerminateRayKHR = 5336,
             OpTerminateRayNV = 5336,
             OpTraceNV = 5337,
+            OpTraceRayKHR = 5337,
+            OpTypeAccelerationStructureKHR = 5341,
             OpTypeAccelerationStructureNV = 5341,
+            OpExecuteCallableKHR = 5344,
             OpExecuteCallableNV = 5344,
             OpTypeCooperativeMatrixNV = 5358,
             OpCooperativeMatrixLoadNV = 5359,
@@ -1433,6 +1525,23 @@
             OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
             OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
             OpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+            OpRayQueryGetRayTMinKHR = 6016,
+            OpRayQueryGetRayFlagsKHR = 6017,
+            OpRayQueryGetIntersectionTKHR = 6018,
+            OpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+            OpRayQueryGetIntersectionInstanceIdKHR = 6020,
+            OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+            OpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+            OpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+            OpRayQueryGetIntersectionBarycentricsKHR = 6024,
+            OpRayQueryGetIntersectionFrontFaceKHR = 6025,
+            OpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+            OpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+            OpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+            OpRayQueryGetWorldRayDirectionKHR = 6029,
+            OpRayQueryGetWorldRayOriginKHR = 6030,
+            OpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+            OpRayQueryGetIntersectionWorldToObjectKHR = 6032,
         }
     }
 }
diff --git a/include/spirv/unified1/spirv.h b/include/spirv/unified1/spirv.h
index 53928a4..92b34c3 100644
--- a/include/spirv/unified1/spirv.h
+++ b/include/spirv/unified1/spirv.h
@@ -1,5 +1,5 @@
 /*
-** Copyright (c) 2014-2019 The Khronos Group Inc.
+** Copyright (c) 2014-2020 The Khronos Group Inc.
 ** 
 ** Permission is hereby granted, free of charge, to any person obtaining a copy
 ** of this software and/or associated documentation files (the "Materials"),
@@ -82,11 +82,17 @@
     SpvExecutionModelKernel = 6,
     SpvExecutionModelTaskNV = 5267,
     SpvExecutionModelMeshNV = 5268,
+    SpvExecutionModelRayGenerationKHR = 5313,
     SpvExecutionModelRayGenerationNV = 5313,
+    SpvExecutionModelIntersectionKHR = 5314,
     SpvExecutionModelIntersectionNV = 5314,
+    SpvExecutionModelAnyHitKHR = 5315,
     SpvExecutionModelAnyHitNV = 5315,
+    SpvExecutionModelClosestHitKHR = 5316,
     SpvExecutionModelClosestHitNV = 5316,
+    SpvExecutionModelMissKHR = 5317,
     SpvExecutionModelMissNV = 5317,
+    SpvExecutionModelCallableKHR = 5318,
     SpvExecutionModelCallableNV = 5318,
     SpvExecutionModelMax = 0x7fffffff,
 } SpvExecutionModel;
@@ -183,11 +189,17 @@
     SpvStorageClassAtomicCounter = 10,
     SpvStorageClassImage = 11,
     SpvStorageClassStorageBuffer = 12,
+    SpvStorageClassCallableDataKHR = 5328,
     SpvStorageClassCallableDataNV = 5328,
+    SpvStorageClassIncomingCallableDataKHR = 5329,
     SpvStorageClassIncomingCallableDataNV = 5329,
+    SpvStorageClassRayPayloadKHR = 5338,
     SpvStorageClassRayPayloadNV = 5338,
+    SpvStorageClassHitAttributeKHR = 5339,
     SpvStorageClassHitAttributeNV = 5339,
+    SpvStorageClassIncomingRayPayloadKHR = 5342,
     SpvStorageClassIncomingRayPayloadNV = 5342,
+    SpvStorageClassShaderRecordBufferKHR = 5343,
     SpvStorageClassShaderRecordBufferNV = 5343,
     SpvStorageClassPhysicalStorageBuffer = 5349,
     SpvStorageClassPhysicalStorageBufferEXT = 5349,
@@ -562,20 +574,35 @@
     SpvBuiltInFragmentSizeNV = 5292,
     SpvBuiltInFragInvocationCountEXT = 5293,
     SpvBuiltInInvocationsPerPixelNV = 5293,
+    SpvBuiltInLaunchIdKHR = 5319,
     SpvBuiltInLaunchIdNV = 5319,
+    SpvBuiltInLaunchSizeKHR = 5320,
     SpvBuiltInLaunchSizeNV = 5320,
+    SpvBuiltInWorldRayOriginKHR = 5321,
     SpvBuiltInWorldRayOriginNV = 5321,
+    SpvBuiltInWorldRayDirectionKHR = 5322,
     SpvBuiltInWorldRayDirectionNV = 5322,
+    SpvBuiltInObjectRayOriginKHR = 5323,
     SpvBuiltInObjectRayOriginNV = 5323,
+    SpvBuiltInObjectRayDirectionKHR = 5324,
     SpvBuiltInObjectRayDirectionNV = 5324,
+    SpvBuiltInRayTminKHR = 5325,
     SpvBuiltInRayTminNV = 5325,
+    SpvBuiltInRayTmaxKHR = 5326,
     SpvBuiltInRayTmaxNV = 5326,
+    SpvBuiltInInstanceCustomIndexKHR = 5327,
     SpvBuiltInInstanceCustomIndexNV = 5327,
+    SpvBuiltInObjectToWorldKHR = 5330,
     SpvBuiltInObjectToWorldNV = 5330,
+    SpvBuiltInWorldToObjectKHR = 5331,
     SpvBuiltInWorldToObjectNV = 5331,
+    SpvBuiltInHitTKHR = 5332,
     SpvBuiltInHitTNV = 5332,
+    SpvBuiltInHitKindKHR = 5333,
     SpvBuiltInHitKindNV = 5333,
+    SpvBuiltInIncomingRayFlagsKHR = 5351,
     SpvBuiltInIncomingRayFlagsNV = 5351,
+    SpvBuiltInRayGeometryIndexKHR = 5352,
     SpvBuiltInWarpsPerSMNV = 5374,
     SpvBuiltInSMCountNV = 5375,
     SpvBuiltInWarpIDNV = 5376,
@@ -713,6 +740,7 @@
     SpvScopeInvocation = 4,
     SpvScopeQueueFamily = 5,
     SpvScopeQueueFamilyKHR = 5,
+    SpvScopeShaderCallKHR = 6,
     SpvScopeMax = 0x7fffffff,
 } SpvScope;
 
@@ -837,6 +865,8 @@
     SpvCapabilitySignedZeroInfNanPreserve = 4466,
     SpvCapabilityRoundingModeRTE = 4467,
     SpvCapabilityRoundingModeRTZ = 4468,
+    SpvCapabilityRayQueryProvisionalKHR = 4471,
+    SpvCapabilityRayTraversalPrimitiveCullingProvisionalKHR = 4478,
     SpvCapabilityFloat16ImageAMD = 5008,
     SpvCapabilityImageGatherBiasLodAMD = 5009,
     SpvCapabilityFragmentMaskAMD = 5010,
@@ -890,6 +920,7 @@
     SpvCapabilityPhysicalStorageBufferAddresses = 5347,
     SpvCapabilityPhysicalStorageBufferAddressesEXT = 5347,
     SpvCapabilityComputeDerivativeGroupLinearNV = 5350,
+    SpvCapabilityRayTracingProvisionalKHR = 5353,
     SpvCapabilityCooperativeMatrixNV = 5357,
     SpvCapabilityFragmentShaderSampleInterlockEXT = 5363,
     SpvCapabilityFragmentShaderShadingRateInterlockEXT = 5372,
@@ -907,6 +938,53 @@
     SpvCapabilityMax = 0x7fffffff,
 } SpvCapability;
 
+typedef enum SpvRayFlagsShift_ {
+    SpvRayFlagsOpaqueKHRShift = 0,
+    SpvRayFlagsNoOpaqueKHRShift = 1,
+    SpvRayFlagsTerminateOnFirstHitKHRShift = 2,
+    SpvRayFlagsSkipClosestHitShaderKHRShift = 3,
+    SpvRayFlagsCullBackFacingTrianglesKHRShift = 4,
+    SpvRayFlagsCullFrontFacingTrianglesKHRShift = 5,
+    SpvRayFlagsCullOpaqueKHRShift = 6,
+    SpvRayFlagsCullNoOpaqueKHRShift = 7,
+    SpvRayFlagsSkipTrianglesKHRShift = 8,
+    SpvRayFlagsSkipAABBsKHRShift = 9,
+    SpvRayFlagsMax = 0x7fffffff,
+} SpvRayFlagsShift;
+
+typedef enum SpvRayFlagsMask_ {
+    SpvRayFlagsMaskNone = 0,
+    SpvRayFlagsOpaqueKHRMask = 0x00000001,
+    SpvRayFlagsNoOpaqueKHRMask = 0x00000002,
+    SpvRayFlagsTerminateOnFirstHitKHRMask = 0x00000004,
+    SpvRayFlagsSkipClosestHitShaderKHRMask = 0x00000008,
+    SpvRayFlagsCullBackFacingTrianglesKHRMask = 0x00000010,
+    SpvRayFlagsCullFrontFacingTrianglesKHRMask = 0x00000020,
+    SpvRayFlagsCullOpaqueKHRMask = 0x00000040,
+    SpvRayFlagsCullNoOpaqueKHRMask = 0x00000080,
+    SpvRayFlagsSkipTrianglesKHRMask = 0x00000100,
+    SpvRayFlagsSkipAABBsKHRMask = 0x00000200,
+} SpvRayFlagsMask;
+
+typedef enum SpvRayQueryIntersection_ {
+    SpvRayQueryIntersectionRayQueryCandidateIntersectionKHR = 0,
+    SpvRayQueryIntersectionRayQueryCommittedIntersectionKHR = 1,
+    SpvRayQueryIntersectionMax = 0x7fffffff,
+} SpvRayQueryIntersection;
+
+typedef enum SpvRayQueryCommittedIntersectionType_ {
+    SpvRayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionNoneKHR = 0,
+    SpvRayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionTriangleKHR = 1,
+    SpvRayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionGeneratedKHR = 2,
+    SpvRayQueryCommittedIntersectionTypeMax = 0x7fffffff,
+} SpvRayQueryCommittedIntersectionType;
+
+typedef enum SpvRayQueryCandidateIntersectionType_ {
+    SpvRayQueryCandidateIntersectionTypeRayQueryCandidateIntersectionTriangleKHR = 0,
+    SpvRayQueryCandidateIntersectionTypeRayQueryCandidateIntersectionAABBKHR = 1,
+    SpvRayQueryCandidateIntersectionTypeMax = 0x7fffffff,
+} SpvRayQueryCandidateIntersectionType;
+
 typedef enum SpvOp_ {
     SpvOpNop = 0,
     SpvOpUndef = 1,
@@ -1258,6 +1336,13 @@
     SpvOpSubgroupAnyKHR = 4429,
     SpvOpSubgroupAllEqualKHR = 4430,
     SpvOpSubgroupReadInvocationKHR = 4432,
+    SpvOpTypeRayQueryProvisionalKHR = 4472,
+    SpvOpRayQueryInitializeKHR = 4473,
+    SpvOpRayQueryTerminateKHR = 4474,
+    SpvOpRayQueryGenerateIntersectionKHR = 4475,
+    SpvOpRayQueryConfirmIntersectionKHR = 4476,
+    SpvOpRayQueryProceedKHR = 4477,
+    SpvOpRayQueryGetIntersectionTypeKHR = 4479,
     SpvOpGroupIAddNonUniformAMD = 5000,
     SpvOpGroupFAddNonUniformAMD = 5001,
     SpvOpGroupFMinNonUniformAMD = 5002,
@@ -1272,11 +1357,17 @@
     SpvOpImageSampleFootprintNV = 5283,
     SpvOpGroupNonUniformPartitionNV = 5296,
     SpvOpWritePackedPrimitiveIndices4x8NV = 5299,
+    SpvOpReportIntersectionKHR = 5334,
     SpvOpReportIntersectionNV = 5334,
+    SpvOpIgnoreIntersectionKHR = 5335,
     SpvOpIgnoreIntersectionNV = 5335,
+    SpvOpTerminateRayKHR = 5336,
     SpvOpTerminateRayNV = 5336,
     SpvOpTraceNV = 5337,
+    SpvOpTraceRayKHR = 5337,
+    SpvOpTypeAccelerationStructureKHR = 5341,
     SpvOpTypeAccelerationStructureNV = 5341,
+    SpvOpExecuteCallableKHR = 5344,
     SpvOpExecuteCallableNV = 5344,
     SpvOpTypeCooperativeMatrixNV = 5358,
     SpvOpCooperativeMatrixLoadNV = 5359,
@@ -1433,6 +1524,23 @@
     SpvOpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
     SpvOpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
     SpvOpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+    SpvOpRayQueryGetRayTMinKHR = 6016,
+    SpvOpRayQueryGetRayFlagsKHR = 6017,
+    SpvOpRayQueryGetIntersectionTKHR = 6018,
+    SpvOpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+    SpvOpRayQueryGetIntersectionInstanceIdKHR = 6020,
+    SpvOpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+    SpvOpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+    SpvOpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+    SpvOpRayQueryGetIntersectionBarycentricsKHR = 6024,
+    SpvOpRayQueryGetIntersectionFrontFaceKHR = 6025,
+    SpvOpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+    SpvOpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+    SpvOpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+    SpvOpRayQueryGetWorldRayDirectionKHR = 6029,
+    SpvOpRayQueryGetWorldRayOriginKHR = 6030,
+    SpvOpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+    SpvOpRayQueryGetIntersectionWorldToObjectKHR = 6032,
     SpvOpMax = 0x7fffffff,
 } SpvOp;
 
@@ -1810,6 +1918,30 @@
     case SpvOpTerminateRayNV: *hasResult = false; *hasResultType = false; break;
     case SpvOpTraceNV: *hasResult = false; *hasResultType = false; break;
     case SpvOpTypeAccelerationStructureNV: *hasResult = true; *hasResultType = false; break;
+    case SpvOpTypeRayQueryProvisionalKHR: *hasResult = true; *hasResultType = false; break;
+    case SpvOpRayQueryInitializeKHR: *hasResult = false; *hasResultType = false; break;
+    case SpvOpRayQueryTerminateKHR: *hasResult = false; *hasResultType = false; break;
+    case SpvOpRayQueryGenerateIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case SpvOpRayQueryConfirmIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case SpvOpRayQueryProceedKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionTypeKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetRayTMinKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetRayFlagsKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionTKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionInstanceCustomIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionInstanceIdKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionGeometryIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionPrimitiveIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionBarycentricsKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionFrontFaceKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionCandidateAABBOpaqueKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionObjectRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionObjectRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetWorldRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetWorldRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionObjectToWorldKHR: *hasResult = true; *hasResultType = true; break;
+    case SpvOpRayQueryGetIntersectionWorldToObjectKHR: *hasResult = true; *hasResultType = true; break;
     case SpvOpExecuteCallableNV: *hasResult = false; *hasResultType = false; break;
     case SpvOpTypeCooperativeMatrixNV: *hasResult = true; *hasResultType = false; break;
     case SpvOpCooperativeMatrixLoadNV: *hasResult = true; *hasResultType = true; break;
diff --git a/include/spirv/unified1/spirv.hpp b/include/spirv/unified1/spirv.hpp
index ae99957..9f98683 100644
--- a/include/spirv/unified1/spirv.hpp
+++ b/include/spirv/unified1/spirv.hpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -78,11 +78,17 @@
     ExecutionModelKernel = 6,
     ExecutionModelTaskNV = 5267,
     ExecutionModelMeshNV = 5268,
+    ExecutionModelRayGenerationKHR = 5313,
     ExecutionModelRayGenerationNV = 5313,
+    ExecutionModelIntersectionKHR = 5314,
     ExecutionModelIntersectionNV = 5314,
+    ExecutionModelAnyHitKHR = 5315,
     ExecutionModelAnyHitNV = 5315,
+    ExecutionModelClosestHitKHR = 5316,
     ExecutionModelClosestHitNV = 5316,
+    ExecutionModelMissKHR = 5317,
     ExecutionModelMissNV = 5317,
+    ExecutionModelCallableKHR = 5318,
     ExecutionModelCallableNV = 5318,
     ExecutionModelMax = 0x7fffffff,
 };
@@ -179,11 +185,17 @@
     StorageClassAtomicCounter = 10,
     StorageClassImage = 11,
     StorageClassStorageBuffer = 12,
+    StorageClassCallableDataKHR = 5328,
     StorageClassCallableDataNV = 5328,
+    StorageClassIncomingCallableDataKHR = 5329,
     StorageClassIncomingCallableDataNV = 5329,
+    StorageClassRayPayloadKHR = 5338,
     StorageClassRayPayloadNV = 5338,
+    StorageClassHitAttributeKHR = 5339,
     StorageClassHitAttributeNV = 5339,
+    StorageClassIncomingRayPayloadKHR = 5342,
     StorageClassIncomingRayPayloadNV = 5342,
+    StorageClassShaderRecordBufferKHR = 5343,
     StorageClassShaderRecordBufferNV = 5343,
     StorageClassPhysicalStorageBuffer = 5349,
     StorageClassPhysicalStorageBufferEXT = 5349,
@@ -558,20 +570,35 @@
     BuiltInFragmentSizeNV = 5292,
     BuiltInFragInvocationCountEXT = 5293,
     BuiltInInvocationsPerPixelNV = 5293,
+    BuiltInLaunchIdKHR = 5319,
     BuiltInLaunchIdNV = 5319,
+    BuiltInLaunchSizeKHR = 5320,
     BuiltInLaunchSizeNV = 5320,
+    BuiltInWorldRayOriginKHR = 5321,
     BuiltInWorldRayOriginNV = 5321,
+    BuiltInWorldRayDirectionKHR = 5322,
     BuiltInWorldRayDirectionNV = 5322,
+    BuiltInObjectRayOriginKHR = 5323,
     BuiltInObjectRayOriginNV = 5323,
+    BuiltInObjectRayDirectionKHR = 5324,
     BuiltInObjectRayDirectionNV = 5324,
+    BuiltInRayTminKHR = 5325,
     BuiltInRayTminNV = 5325,
+    BuiltInRayTmaxKHR = 5326,
     BuiltInRayTmaxNV = 5326,
+    BuiltInInstanceCustomIndexKHR = 5327,
     BuiltInInstanceCustomIndexNV = 5327,
+    BuiltInObjectToWorldKHR = 5330,
     BuiltInObjectToWorldNV = 5330,
+    BuiltInWorldToObjectKHR = 5331,
     BuiltInWorldToObjectNV = 5331,
+    BuiltInHitTKHR = 5332,
     BuiltInHitTNV = 5332,
+    BuiltInHitKindKHR = 5333,
     BuiltInHitKindNV = 5333,
+    BuiltInIncomingRayFlagsKHR = 5351,
     BuiltInIncomingRayFlagsNV = 5351,
+    BuiltInRayGeometryIndexKHR = 5352,
     BuiltInWarpsPerSMNV = 5374,
     BuiltInSMCountNV = 5375,
     BuiltInWarpIDNV = 5376,
@@ -709,6 +736,7 @@
     ScopeInvocation = 4,
     ScopeQueueFamily = 5,
     ScopeQueueFamilyKHR = 5,
+    ScopeShaderCallKHR = 6,
     ScopeMax = 0x7fffffff,
 };
 
@@ -833,6 +861,8 @@
     CapabilitySignedZeroInfNanPreserve = 4466,
     CapabilityRoundingModeRTE = 4467,
     CapabilityRoundingModeRTZ = 4468,
+    CapabilityRayQueryProvisionalKHR = 4471,
+    CapabilityRayTraversalPrimitiveCullingProvisionalKHR = 4478,
     CapabilityFloat16ImageAMD = 5008,
     CapabilityImageGatherBiasLodAMD = 5009,
     CapabilityFragmentMaskAMD = 5010,
@@ -886,6 +916,7 @@
     CapabilityPhysicalStorageBufferAddresses = 5347,
     CapabilityPhysicalStorageBufferAddressesEXT = 5347,
     CapabilityComputeDerivativeGroupLinearNV = 5350,
+    CapabilityRayTracingProvisionalKHR = 5353,
     CapabilityCooperativeMatrixNV = 5357,
     CapabilityFragmentShaderSampleInterlockEXT = 5363,
     CapabilityFragmentShaderShadingRateInterlockEXT = 5372,
@@ -903,6 +934,53 @@
     CapabilityMax = 0x7fffffff,
 };
 
+enum RayFlagsShift {
+    RayFlagsOpaqueKHRShift = 0,
+    RayFlagsNoOpaqueKHRShift = 1,
+    RayFlagsTerminateOnFirstHitKHRShift = 2,
+    RayFlagsSkipClosestHitShaderKHRShift = 3,
+    RayFlagsCullBackFacingTrianglesKHRShift = 4,
+    RayFlagsCullFrontFacingTrianglesKHRShift = 5,
+    RayFlagsCullOpaqueKHRShift = 6,
+    RayFlagsCullNoOpaqueKHRShift = 7,
+    RayFlagsSkipTrianglesKHRShift = 8,
+    RayFlagsSkipAABBsKHRShift = 9,
+    RayFlagsMax = 0x7fffffff,
+};
+
+enum RayFlagsMask {
+    RayFlagsMaskNone = 0,
+    RayFlagsOpaqueKHRMask = 0x00000001,
+    RayFlagsNoOpaqueKHRMask = 0x00000002,
+    RayFlagsTerminateOnFirstHitKHRMask = 0x00000004,
+    RayFlagsSkipClosestHitShaderKHRMask = 0x00000008,
+    RayFlagsCullBackFacingTrianglesKHRMask = 0x00000010,
+    RayFlagsCullFrontFacingTrianglesKHRMask = 0x00000020,
+    RayFlagsCullOpaqueKHRMask = 0x00000040,
+    RayFlagsCullNoOpaqueKHRMask = 0x00000080,
+    RayFlagsSkipTrianglesKHRMask = 0x00000100,
+    RayFlagsSkipAABBsKHRMask = 0x00000200,
+};
+
+enum RayQueryIntersection {
+    RayQueryIntersectionRayQueryCandidateIntersectionKHR = 0,
+    RayQueryIntersectionRayQueryCommittedIntersectionKHR = 1,
+    RayQueryIntersectionMax = 0x7fffffff,
+};
+
+enum RayQueryCommittedIntersectionType {
+    RayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionNoneKHR = 0,
+    RayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionTriangleKHR = 1,
+    RayQueryCommittedIntersectionTypeRayQueryCommittedIntersectionGeneratedKHR = 2,
+    RayQueryCommittedIntersectionTypeMax = 0x7fffffff,
+};
+
+enum RayQueryCandidateIntersectionType {
+    RayQueryCandidateIntersectionTypeRayQueryCandidateIntersectionTriangleKHR = 0,
+    RayQueryCandidateIntersectionTypeRayQueryCandidateIntersectionAABBKHR = 1,
+    RayQueryCandidateIntersectionTypeMax = 0x7fffffff,
+};
+
 enum Op {
     OpNop = 0,
     OpUndef = 1,
@@ -1254,6 +1332,13 @@
     OpSubgroupAnyKHR = 4429,
     OpSubgroupAllEqualKHR = 4430,
     OpSubgroupReadInvocationKHR = 4432,
+    OpTypeRayQueryProvisionalKHR = 4472,
+    OpRayQueryInitializeKHR = 4473,
+    OpRayQueryTerminateKHR = 4474,
+    OpRayQueryGenerateIntersectionKHR = 4475,
+    OpRayQueryConfirmIntersectionKHR = 4476,
+    OpRayQueryProceedKHR = 4477,
+    OpRayQueryGetIntersectionTypeKHR = 4479,
     OpGroupIAddNonUniformAMD = 5000,
     OpGroupFAddNonUniformAMD = 5001,
     OpGroupFMinNonUniformAMD = 5002,
@@ -1268,11 +1353,17 @@
     OpImageSampleFootprintNV = 5283,
     OpGroupNonUniformPartitionNV = 5296,
     OpWritePackedPrimitiveIndices4x8NV = 5299,
+    OpReportIntersectionKHR = 5334,
     OpReportIntersectionNV = 5334,
+    OpIgnoreIntersectionKHR = 5335,
     OpIgnoreIntersectionNV = 5335,
+    OpTerminateRayKHR = 5336,
     OpTerminateRayNV = 5336,
     OpTraceNV = 5337,
+    OpTraceRayKHR = 5337,
+    OpTypeAccelerationStructureKHR = 5341,
     OpTypeAccelerationStructureNV = 5341,
+    OpExecuteCallableKHR = 5344,
     OpExecuteCallableNV = 5344,
     OpTypeCooperativeMatrixNV = 5358,
     OpCooperativeMatrixLoadNV = 5359,
@@ -1429,6 +1520,23 @@
     OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
     OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
     OpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+    OpRayQueryGetRayTMinKHR = 6016,
+    OpRayQueryGetRayFlagsKHR = 6017,
+    OpRayQueryGetIntersectionTKHR = 6018,
+    OpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+    OpRayQueryGetIntersectionInstanceIdKHR = 6020,
+    OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+    OpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+    OpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+    OpRayQueryGetIntersectionBarycentricsKHR = 6024,
+    OpRayQueryGetIntersectionFrontFaceKHR = 6025,
+    OpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+    OpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+    OpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+    OpRayQueryGetWorldRayDirectionKHR = 6029,
+    OpRayQueryGetWorldRayOriginKHR = 6030,
+    OpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+    OpRayQueryGetIntersectionWorldToObjectKHR = 6032,
     OpMax = 0x7fffffff,
 };
 
@@ -1806,6 +1914,30 @@
     case OpTerminateRayNV: *hasResult = false; *hasResultType = false; break;
     case OpTraceNV: *hasResult = false; *hasResultType = false; break;
     case OpTypeAccelerationStructureNV: *hasResult = true; *hasResultType = false; break;
+    case OpTypeRayQueryProvisionalKHR: *hasResult = true; *hasResultType = false; break;
+    case OpRayQueryInitializeKHR: *hasResult = false; *hasResultType = false; break;
+    case OpRayQueryTerminateKHR: *hasResult = false; *hasResultType = false; break;
+    case OpRayQueryGenerateIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case OpRayQueryConfirmIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case OpRayQueryProceedKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionTypeKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetRayTMinKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetRayFlagsKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionTKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionInstanceCustomIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionInstanceIdKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionGeometryIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionPrimitiveIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionBarycentricsKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionFrontFaceKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionCandidateAABBOpaqueKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionObjectRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionObjectRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetWorldRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetWorldRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionObjectToWorldKHR: *hasResult = true; *hasResultType = true; break;
+    case OpRayQueryGetIntersectionWorldToObjectKHR: *hasResult = true; *hasResultType = true; break;
     case OpExecuteCallableNV: *hasResult = false; *hasResultType = false; break;
     case OpTypeCooperativeMatrixNV: *hasResult = true; *hasResultType = false; break;
     case OpCooperativeMatrixLoadNV: *hasResult = true; *hasResultType = true; break;
@@ -1974,6 +2106,7 @@
 inline MemorySemanticsMask operator|(MemorySemanticsMask a, MemorySemanticsMask b) { return MemorySemanticsMask(unsigned(a) | unsigned(b)); }
 inline MemoryAccessMask operator|(MemoryAccessMask a, MemoryAccessMask b) { return MemoryAccessMask(unsigned(a) | unsigned(b)); }
 inline KernelProfilingInfoMask operator|(KernelProfilingInfoMask a, KernelProfilingInfoMask b) { return KernelProfilingInfoMask(unsigned(a) | unsigned(b)); }
+inline RayFlagsMask operator|(RayFlagsMask a, RayFlagsMask b) { return RayFlagsMask(unsigned(a) | unsigned(b)); }
 
 }  // end namespace spv
 
diff --git a/include/spirv/unified1/spirv.hpp11 b/include/spirv/unified1/spirv.hpp11
index 34ee3b4..406ba19 100644
--- a/include/spirv/unified1/spirv.hpp11
+++ b/include/spirv/unified1/spirv.hpp11
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -78,11 +78,17 @@
     Kernel = 6,
     TaskNV = 5267,
     MeshNV = 5268,
+    RayGenerationKHR = 5313,
     RayGenerationNV = 5313,
+    IntersectionKHR = 5314,
     IntersectionNV = 5314,
+    AnyHitKHR = 5315,
     AnyHitNV = 5315,
+    ClosestHitKHR = 5316,
     ClosestHitNV = 5316,
+    MissKHR = 5317,
     MissNV = 5317,
+    CallableKHR = 5318,
     CallableNV = 5318,
     Max = 0x7fffffff,
 };
@@ -179,11 +185,17 @@
     AtomicCounter = 10,
     Image = 11,
     StorageBuffer = 12,
+    CallableDataKHR = 5328,
     CallableDataNV = 5328,
+    IncomingCallableDataKHR = 5329,
     IncomingCallableDataNV = 5329,
+    RayPayloadKHR = 5338,
     RayPayloadNV = 5338,
+    HitAttributeKHR = 5339,
     HitAttributeNV = 5339,
+    IncomingRayPayloadKHR = 5342,
     IncomingRayPayloadNV = 5342,
+    ShaderRecordBufferKHR = 5343,
     ShaderRecordBufferNV = 5343,
     PhysicalStorageBuffer = 5349,
     PhysicalStorageBufferEXT = 5349,
@@ -558,20 +570,35 @@
     FragmentSizeNV = 5292,
     FragInvocationCountEXT = 5293,
     InvocationsPerPixelNV = 5293,
+    LaunchIdKHR = 5319,
     LaunchIdNV = 5319,
+    LaunchSizeKHR = 5320,
     LaunchSizeNV = 5320,
+    WorldRayOriginKHR = 5321,
     WorldRayOriginNV = 5321,
+    WorldRayDirectionKHR = 5322,
     WorldRayDirectionNV = 5322,
+    ObjectRayOriginKHR = 5323,
     ObjectRayOriginNV = 5323,
+    ObjectRayDirectionKHR = 5324,
     ObjectRayDirectionNV = 5324,
+    RayTminKHR = 5325,
     RayTminNV = 5325,
+    RayTmaxKHR = 5326,
     RayTmaxNV = 5326,
+    InstanceCustomIndexKHR = 5327,
     InstanceCustomIndexNV = 5327,
+    ObjectToWorldKHR = 5330,
     ObjectToWorldNV = 5330,
+    WorldToObjectKHR = 5331,
     WorldToObjectNV = 5331,
+    HitTKHR = 5332,
     HitTNV = 5332,
+    HitKindKHR = 5333,
     HitKindNV = 5333,
+    IncomingRayFlagsKHR = 5351,
     IncomingRayFlagsNV = 5351,
+    RayGeometryIndexKHR = 5352,
     WarpsPerSMNV = 5374,
     SMCountNV = 5375,
     WarpIDNV = 5376,
@@ -709,6 +736,7 @@
     Invocation = 4,
     QueueFamily = 5,
     QueueFamilyKHR = 5,
+    ShaderCallKHR = 6,
     Max = 0x7fffffff,
 };
 
@@ -833,6 +861,8 @@
     SignedZeroInfNanPreserve = 4466,
     RoundingModeRTE = 4467,
     RoundingModeRTZ = 4468,
+    RayQueryProvisionalKHR = 4471,
+    RayTraversalPrimitiveCullingProvisionalKHR = 4478,
     Float16ImageAMD = 5008,
     ImageGatherBiasLodAMD = 5009,
     FragmentMaskAMD = 5010,
@@ -886,6 +916,7 @@
     PhysicalStorageBufferAddresses = 5347,
     PhysicalStorageBufferAddressesEXT = 5347,
     ComputeDerivativeGroupLinearNV = 5350,
+    RayTracingProvisionalKHR = 5353,
     CooperativeMatrixNV = 5357,
     FragmentShaderSampleInterlockEXT = 5363,
     FragmentShaderShadingRateInterlockEXT = 5372,
@@ -903,6 +934,53 @@
     Max = 0x7fffffff,
 };
 
+enum class RayFlagsShift : unsigned {
+    OpaqueKHR = 0,
+    NoOpaqueKHR = 1,
+    TerminateOnFirstHitKHR = 2,
+    SkipClosestHitShaderKHR = 3,
+    CullBackFacingTrianglesKHR = 4,
+    CullFrontFacingTrianglesKHR = 5,
+    CullOpaqueKHR = 6,
+    CullNoOpaqueKHR = 7,
+    SkipTrianglesKHR = 8,
+    SkipAABBsKHR = 9,
+    Max = 0x7fffffff,
+};
+
+enum class RayFlagsMask : unsigned {
+    MaskNone = 0,
+    OpaqueKHR = 0x00000001,
+    NoOpaqueKHR = 0x00000002,
+    TerminateOnFirstHitKHR = 0x00000004,
+    SkipClosestHitShaderKHR = 0x00000008,
+    CullBackFacingTrianglesKHR = 0x00000010,
+    CullFrontFacingTrianglesKHR = 0x00000020,
+    CullOpaqueKHR = 0x00000040,
+    CullNoOpaqueKHR = 0x00000080,
+    SkipTrianglesKHR = 0x00000100,
+    SkipAABBsKHR = 0x00000200,
+};
+
+enum class RayQueryIntersection : unsigned {
+    RayQueryCandidateIntersectionKHR = 0,
+    RayQueryCommittedIntersectionKHR = 1,
+    Max = 0x7fffffff,
+};
+
+enum class RayQueryCommittedIntersectionType : unsigned {
+    RayQueryCommittedIntersectionNoneKHR = 0,
+    RayQueryCommittedIntersectionTriangleKHR = 1,
+    RayQueryCommittedIntersectionGeneratedKHR = 2,
+    Max = 0x7fffffff,
+};
+
+enum class RayQueryCandidateIntersectionType : unsigned {
+    RayQueryCandidateIntersectionTriangleKHR = 0,
+    RayQueryCandidateIntersectionAABBKHR = 1,
+    Max = 0x7fffffff,
+};
+
 enum class Op : unsigned {
     OpNop = 0,
     OpUndef = 1,
@@ -1254,6 +1332,13 @@
     OpSubgroupAnyKHR = 4429,
     OpSubgroupAllEqualKHR = 4430,
     OpSubgroupReadInvocationKHR = 4432,
+    OpTypeRayQueryProvisionalKHR = 4472,
+    OpRayQueryInitializeKHR = 4473,
+    OpRayQueryTerminateKHR = 4474,
+    OpRayQueryGenerateIntersectionKHR = 4475,
+    OpRayQueryConfirmIntersectionKHR = 4476,
+    OpRayQueryProceedKHR = 4477,
+    OpRayQueryGetIntersectionTypeKHR = 4479,
     OpGroupIAddNonUniformAMD = 5000,
     OpGroupFAddNonUniformAMD = 5001,
     OpGroupFMinNonUniformAMD = 5002,
@@ -1268,11 +1353,17 @@
     OpImageSampleFootprintNV = 5283,
     OpGroupNonUniformPartitionNV = 5296,
     OpWritePackedPrimitiveIndices4x8NV = 5299,
+    OpReportIntersectionKHR = 5334,
     OpReportIntersectionNV = 5334,
+    OpIgnoreIntersectionKHR = 5335,
     OpIgnoreIntersectionNV = 5335,
+    OpTerminateRayKHR = 5336,
     OpTerminateRayNV = 5336,
     OpTraceNV = 5337,
+    OpTraceRayKHR = 5337,
+    OpTypeAccelerationStructureKHR = 5341,
     OpTypeAccelerationStructureNV = 5341,
+    OpExecuteCallableKHR = 5344,
     OpExecuteCallableNV = 5344,
     OpTypeCooperativeMatrixNV = 5358,
     OpCooperativeMatrixLoadNV = 5359,
@@ -1429,6 +1520,23 @@
     OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
     OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
     OpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+    OpRayQueryGetRayTMinKHR = 6016,
+    OpRayQueryGetRayFlagsKHR = 6017,
+    OpRayQueryGetIntersectionTKHR = 6018,
+    OpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+    OpRayQueryGetIntersectionInstanceIdKHR = 6020,
+    OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+    OpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+    OpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+    OpRayQueryGetIntersectionBarycentricsKHR = 6024,
+    OpRayQueryGetIntersectionFrontFaceKHR = 6025,
+    OpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+    OpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+    OpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+    OpRayQueryGetWorldRayDirectionKHR = 6029,
+    OpRayQueryGetWorldRayOriginKHR = 6030,
+    OpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+    OpRayQueryGetIntersectionWorldToObjectKHR = 6032,
     Max = 0x7fffffff,
 };
 
@@ -1806,6 +1914,30 @@
     case Op::OpTerminateRayNV: *hasResult = false; *hasResultType = false; break;
     case Op::OpTraceNV: *hasResult = false; *hasResultType = false; break;
     case Op::OpTypeAccelerationStructureNV: *hasResult = true; *hasResultType = false; break;
+    case Op::OpTypeRayQueryProvisionalKHR: *hasResult = true; *hasResultType = false; break;
+    case Op::OpRayQueryInitializeKHR: *hasResult = false; *hasResultType = false; break;
+    case Op::OpRayQueryTerminateKHR: *hasResult = false; *hasResultType = false; break;
+    case Op::OpRayQueryGenerateIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case Op::OpRayQueryConfirmIntersectionKHR: *hasResult = false; *hasResultType = false; break;
+    case Op::OpRayQueryProceedKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionTypeKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetRayTMinKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetRayFlagsKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionTKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionInstanceCustomIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionInstanceIdKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionGeometryIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionPrimitiveIndexKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionBarycentricsKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionFrontFaceKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionCandidateAABBOpaqueKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionObjectRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionObjectRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetWorldRayDirectionKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetWorldRayOriginKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionObjectToWorldKHR: *hasResult = true; *hasResultType = true; break;
+    case Op::OpRayQueryGetIntersectionWorldToObjectKHR: *hasResult = true; *hasResultType = true; break;
     case Op::OpExecuteCallableNV: *hasResult = false; *hasResultType = false; break;
     case Op::OpTypeCooperativeMatrixNV: *hasResult = true; *hasResultType = false; break;
     case Op::OpCooperativeMatrixLoadNV: *hasResult = true; *hasResultType = true; break;
@@ -1974,6 +2106,7 @@
 inline MemorySemanticsMask operator|(MemorySemanticsMask a, MemorySemanticsMask b) { return MemorySemanticsMask(unsigned(a) | unsigned(b)); }
 inline MemoryAccessMask operator|(MemoryAccessMask a, MemoryAccessMask b) { return MemoryAccessMask(unsigned(a) | unsigned(b)); }
 inline KernelProfilingInfoMask operator|(KernelProfilingInfoMask a, KernelProfilingInfoMask b) { return KernelProfilingInfoMask(unsigned(a) | unsigned(b)); }
+inline RayFlagsMask operator|(RayFlagsMask a, RayFlagsMask b) { return RayFlagsMask(unsigned(a) | unsigned(b)); }
 
 }  // end namespace spv
 
diff --git a/include/spirv/unified1/spirv.json b/include/spirv/unified1/spirv.json
index b08a1a5..d372beb 100644
--- a/include/spirv/unified1/spirv.json
+++ b/include/spirv/unified1/spirv.json
@@ -6,7 +6,7 @@
             "Comment":
             [
                 [
-                    "Copyright (c) 2014-2019 The Khronos Group Inc.",
+                    "Copyright (c) 2014-2020 The Khronos Group Inc.",
                     "",
                     "Permission is hereby granted, free of charge, to any person obtaining a copy",
                     "of this software and/or associated documentation files (the \"Materials\"),",
@@ -88,11 +88,17 @@
                     "Kernel": 6,
                     "TaskNV": 5267,
                     "MeshNV": 5268,
+                    "RayGenerationKHR": 5313,
                     "RayGenerationNV": 5313,
+                    "IntersectionKHR": 5314,
                     "IntersectionNV": 5314,
+                    "AnyHitKHR": 5315,
                     "AnyHitNV": 5315,
+                    "ClosestHitKHR": 5316,
                     "ClosestHitNV": 5316,
+                    "MissKHR": 5317,
                     "MissNV": 5317,
+                    "CallableKHR": 5318,
                     "CallableNV": 5318
                 }
             },
@@ -201,11 +207,17 @@
                     "AtomicCounter": 10,
                     "Image": 11,
                     "StorageBuffer": 12,
+                    "CallableDataKHR": 5328,
                     "CallableDataNV": 5328,
+                    "IncomingCallableDataKHR": 5329,
                     "IncomingCallableDataNV": 5329,
+                    "RayPayloadKHR": 5338,
                     "RayPayloadNV": 5338,
+                    "HitAttributeKHR": 5339,
                     "HitAttributeNV": 5339,
+                    "IncomingRayPayloadKHR": 5342,
                     "IncomingRayPayloadNV": 5342,
+                    "ShaderRecordBufferKHR": 5343,
                     "ShaderRecordBufferNV": 5343,
                     "PhysicalStorageBuffer": 5349,
                     "PhysicalStorageBufferEXT": 5349
@@ -591,20 +603,35 @@
                     "FragmentSizeNV": 5292,
                     "FragInvocationCountEXT": 5293,
                     "InvocationsPerPixelNV": 5293,
+                    "LaunchIdKHR": 5319,
                     "LaunchIdNV": 5319,
+                    "LaunchSizeKHR": 5320,
                     "LaunchSizeNV": 5320,
+                    "WorldRayOriginKHR": 5321,
                     "WorldRayOriginNV": 5321,
+                    "WorldRayDirectionKHR": 5322,
                     "WorldRayDirectionNV": 5322,
+                    "ObjectRayOriginKHR": 5323,
                     "ObjectRayOriginNV": 5323,
+                    "ObjectRayDirectionKHR": 5324,
                     "ObjectRayDirectionNV": 5324,
+                    "RayTminKHR": 5325,
                     "RayTminNV": 5325,
+                    "RayTmaxKHR": 5326,
                     "RayTmaxNV": 5326,
+                    "InstanceCustomIndexKHR": 5327,
                     "InstanceCustomIndexNV": 5327,
+                    "ObjectToWorldKHR": 5330,
                     "ObjectToWorldNV": 5330,
+                    "WorldToObjectKHR": 5331,
                     "WorldToObjectNV": 5331,
+                    "HitTKHR": 5332,
                     "HitTNV": 5332,
+                    "HitKindKHR": 5333,
                     "HitKindNV": 5333,
+                    "IncomingRayFlagsKHR": 5351,
                     "IncomingRayFlagsNV": 5351,
+                    "RayGeometryIndexKHR": 5352,
                     "WarpsPerSMNV": 5374,
                     "SMCountNV": 5375,
                     "WarpIDNV": 5376,
@@ -698,7 +725,8 @@
                     "Subgroup": 3,
                     "Invocation": 4,
                     "QueueFamily": 5,
-                    "QueueFamilyKHR": 5
+                    "QueueFamilyKHR": 5,
+                    "ShaderCallKHR": 6
                 }
             },
             {
@@ -830,6 +858,8 @@
                     "SignedZeroInfNanPreserve": 4466,
                     "RoundingModeRTE": 4467,
                     "RoundingModeRTZ": 4468,
+                    "RayQueryProvisionalKHR": 4471,
+                    "RayTraversalPrimitiveCullingProvisionalKHR": 4478,
                     "Float16ImageAMD": 5008,
                     "ImageGatherBiasLodAMD": 5009,
                     "FragmentMaskAMD": 5010,
@@ -883,6 +913,7 @@
                     "PhysicalStorageBufferAddresses": 5347,
                     "PhysicalStorageBufferAddressesEXT": 5347,
                     "ComputeDerivativeGroupLinearNV": 5350,
+                    "RayTracingProvisionalKHR": 5353,
                     "CooperativeMatrixNV": 5357,
                     "FragmentShaderSampleInterlockEXT": 5363,
                     "FragmentShaderShadingRateInterlockEXT": 5372,
@@ -900,6 +931,51 @@
                 }
             },
             {
+                "Name": "RayFlags",
+                "Type": "Bit",
+                "Values":
+                {
+                    "OpaqueKHR": 0,
+                    "NoOpaqueKHR": 1,
+                    "TerminateOnFirstHitKHR": 2,
+                    "SkipClosestHitShaderKHR": 3,
+                    "CullBackFacingTrianglesKHR": 4,
+                    "CullFrontFacingTrianglesKHR": 5,
+                    "CullOpaqueKHR": 6,
+                    "CullNoOpaqueKHR": 7,
+                    "SkipTrianglesKHR": 8,
+                    "SkipAABBsKHR": 9
+                }
+            },
+            {
+                "Name": "RayQueryIntersection",
+                "Type": "Value",
+                "Values":
+                {
+                    "RayQueryCandidateIntersectionKHR": 0,
+                    "RayQueryCommittedIntersectionKHR": 1
+                }
+            },
+            {
+                "Name": "RayQueryCommittedIntersectionType",
+                "Type": "Value",
+                "Values":
+                {
+                    "RayQueryCommittedIntersectionNoneKHR": 0,
+                    "RayQueryCommittedIntersectionTriangleKHR": 1,
+                    "RayQueryCommittedIntersectionGeneratedKHR": 2
+                }
+            },
+            {
+                "Name": "RayQueryCandidateIntersectionType",
+                "Type": "Value",
+                "Values":
+                {
+                    "RayQueryCandidateIntersectionTriangleKHR": 0,
+                    "RayQueryCandidateIntersectionAABBKHR": 1
+                }
+            },
+            {
                 "Name": "Op",
                 "Type": "Value",
                 "Values":
@@ -1254,6 +1330,13 @@
                     "OpSubgroupAnyKHR": 4429,
                     "OpSubgroupAllEqualKHR": 4430,
                     "OpSubgroupReadInvocationKHR": 4432,
+                    "OpTypeRayQueryProvisionalKHR": 4472,
+                    "OpRayQueryInitializeKHR": 4473,
+                    "OpRayQueryTerminateKHR": 4474,
+                    "OpRayQueryGenerateIntersectionKHR": 4475,
+                    "OpRayQueryConfirmIntersectionKHR": 4476,
+                    "OpRayQueryProceedKHR": 4477,
+                    "OpRayQueryGetIntersectionTypeKHR": 4479,
                     "OpGroupIAddNonUniformAMD": 5000,
                     "OpGroupFAddNonUniformAMD": 5001,
                     "OpGroupFMinNonUniformAMD": 5002,
@@ -1268,11 +1351,17 @@
                     "OpImageSampleFootprintNV": 5283,
                     "OpGroupNonUniformPartitionNV": 5296,
                     "OpWritePackedPrimitiveIndices4x8NV": 5299,
+                    "OpReportIntersectionKHR": 5334,
                     "OpReportIntersectionNV": 5334,
+                    "OpIgnoreIntersectionKHR": 5335,
                     "OpIgnoreIntersectionNV": 5335,
+                    "OpTerminateRayKHR": 5336,
                     "OpTerminateRayNV": 5336,
                     "OpTraceNV": 5337,
+                    "OpTraceRayKHR": 5337,
+                    "OpTypeAccelerationStructureKHR": 5341,
                     "OpTypeAccelerationStructureNV": 5341,
+                    "OpExecuteCallableKHR": 5344,
                     "OpExecuteCallableNV": 5344,
                     "OpTypeCooperativeMatrixNV": 5358,
                     "OpCooperativeMatrixLoadNV": 5359,
@@ -1428,7 +1517,24 @@
                     "OpSubgroupAvcSicGetIpeChromaModeINTEL": 5813,
                     "OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL": 5814,
                     "OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL": 5815,
-                    "OpSubgroupAvcSicGetInterRawSadsINTEL": 5816
+                    "OpSubgroupAvcSicGetInterRawSadsINTEL": 5816,
+                    "OpRayQueryGetRayTMinKHR": 6016,
+                    "OpRayQueryGetRayFlagsKHR": 6017,
+                    "OpRayQueryGetIntersectionTKHR": 6018,
+                    "OpRayQueryGetIntersectionInstanceCustomIndexKHR": 6019,
+                    "OpRayQueryGetIntersectionInstanceIdKHR": 6020,
+                    "OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR": 6021,
+                    "OpRayQueryGetIntersectionGeometryIndexKHR": 6022,
+                    "OpRayQueryGetIntersectionPrimitiveIndexKHR": 6023,
+                    "OpRayQueryGetIntersectionBarycentricsKHR": 6024,
+                    "OpRayQueryGetIntersectionFrontFaceKHR": 6025,
+                    "OpRayQueryGetIntersectionCandidateAABBOpaqueKHR": 6026,
+                    "OpRayQueryGetIntersectionObjectRayDirectionKHR": 6027,
+                    "OpRayQueryGetIntersectionObjectRayOriginKHR": 6028,
+                    "OpRayQueryGetWorldRayDirectionKHR": 6029,
+                    "OpRayQueryGetWorldRayOriginKHR": 6030,
+                    "OpRayQueryGetIntersectionObjectToWorldKHR": 6031,
+                    "OpRayQueryGetIntersectionWorldToObjectKHR": 6032
                 }
             }
         ]
diff --git a/include/spirv/unified1/spirv.lua b/include/spirv/unified1/spirv.lua
index 27385db..3774a95 100644
--- a/include/spirv/unified1/spirv.lua
+++ b/include/spirv/unified1/spirv.lua
@@ -1,4 +1,4 @@
--- Copyright (c) 2014-2019 The Khronos Group Inc.
+-- Copyright (c) 2014-2020 The Khronos Group Inc.
 -- 
 -- Permission is hereby granted, free of charge, to any person obtaining a copy
 -- of this software and/or associated documentation files (the "Materials"),
@@ -68,11 +68,17 @@
         Kernel = 6,
         TaskNV = 5267,
         MeshNV = 5268,
+        RayGenerationKHR = 5313,
         RayGenerationNV = 5313,
+        IntersectionKHR = 5314,
         IntersectionNV = 5314,
+        AnyHitKHR = 5315,
         AnyHitNV = 5315,
+        ClosestHitKHR = 5316,
         ClosestHitNV = 5316,
+        MissKHR = 5317,
         MissNV = 5317,
+        CallableKHR = 5318,
         CallableNV = 5318,
     },
 
@@ -165,11 +171,17 @@
         AtomicCounter = 10,
         Image = 11,
         StorageBuffer = 12,
+        CallableDataKHR = 5328,
         CallableDataNV = 5328,
+        IncomingCallableDataKHR = 5329,
         IncomingCallableDataNV = 5329,
+        RayPayloadKHR = 5338,
         RayPayloadNV = 5338,
+        HitAttributeKHR = 5339,
         HitAttributeNV = 5339,
+        IncomingRayPayloadKHR = 5342,
         IncomingRayPayloadNV = 5342,
+        ShaderRecordBufferKHR = 5343,
         ShaderRecordBufferNV = 5343,
         PhysicalStorageBuffer = 5349,
         PhysicalStorageBufferEXT = 5349,
@@ -530,20 +542,35 @@
         FragmentSizeNV = 5292,
         FragInvocationCountEXT = 5293,
         InvocationsPerPixelNV = 5293,
+        LaunchIdKHR = 5319,
         LaunchIdNV = 5319,
+        LaunchSizeKHR = 5320,
         LaunchSizeNV = 5320,
+        WorldRayOriginKHR = 5321,
         WorldRayOriginNV = 5321,
+        WorldRayDirectionKHR = 5322,
         WorldRayDirectionNV = 5322,
+        ObjectRayOriginKHR = 5323,
         ObjectRayOriginNV = 5323,
+        ObjectRayDirectionKHR = 5324,
         ObjectRayDirectionNV = 5324,
+        RayTminKHR = 5325,
         RayTminNV = 5325,
+        RayTmaxKHR = 5326,
         RayTmaxNV = 5326,
+        InstanceCustomIndexKHR = 5327,
         InstanceCustomIndexNV = 5327,
+        ObjectToWorldKHR = 5330,
         ObjectToWorldNV = 5330,
+        WorldToObjectKHR = 5331,
         WorldToObjectNV = 5331,
+        HitTKHR = 5332,
         HitTNV = 5332,
+        HitKindKHR = 5333,
         HitKindNV = 5333,
+        IncomingRayFlagsKHR = 5351,
         IncomingRayFlagsNV = 5351,
+        RayGeometryIndexKHR = 5352,
         WarpsPerSMNV = 5374,
         SMCountNV = 5375,
         WarpIDNV = 5376,
@@ -675,6 +702,7 @@
         Invocation = 4,
         QueueFamily = 5,
         QueueFamilyKHR = 5,
+        ShaderCallKHR = 6,
     },
 
     GroupOperation = {
@@ -795,6 +823,8 @@
         SignedZeroInfNanPreserve = 4466,
         RoundingModeRTE = 4467,
         RoundingModeRTZ = 4468,
+        RayQueryProvisionalKHR = 4471,
+        RayTraversalPrimitiveCullingProvisionalKHR = 4478,
         Float16ImageAMD = 5008,
         ImageGatherBiasLodAMD = 5009,
         FragmentMaskAMD = 5010,
@@ -848,6 +878,7 @@
         PhysicalStorageBufferAddresses = 5347,
         PhysicalStorageBufferAddressesEXT = 5347,
         ComputeDerivativeGroupLinearNV = 5350,
+        RayTracingProvisionalKHR = 5353,
         CooperativeMatrixNV = 5357,
         FragmentShaderSampleInterlockEXT = 5363,
         FragmentShaderShadingRateInterlockEXT = 5372,
@@ -864,6 +895,49 @@
         SubgroupAvcMotionEstimationChromaINTEL = 5698,
     },
 
+    RayFlagsShift = {
+        OpaqueKHR = 0,
+        NoOpaqueKHR = 1,
+        TerminateOnFirstHitKHR = 2,
+        SkipClosestHitShaderKHR = 3,
+        CullBackFacingTrianglesKHR = 4,
+        CullFrontFacingTrianglesKHR = 5,
+        CullOpaqueKHR = 6,
+        CullNoOpaqueKHR = 7,
+        SkipTrianglesKHR = 8,
+        SkipAABBsKHR = 9,
+    },
+
+    RayFlagsMask = {
+        MaskNone = 0,
+        OpaqueKHR = 0x00000001,
+        NoOpaqueKHR = 0x00000002,
+        TerminateOnFirstHitKHR = 0x00000004,
+        SkipClosestHitShaderKHR = 0x00000008,
+        CullBackFacingTrianglesKHR = 0x00000010,
+        CullFrontFacingTrianglesKHR = 0x00000020,
+        CullOpaqueKHR = 0x00000040,
+        CullNoOpaqueKHR = 0x00000080,
+        SkipTrianglesKHR = 0x00000100,
+        SkipAABBsKHR = 0x00000200,
+    },
+
+    RayQueryIntersection = {
+        RayQueryCandidateIntersectionKHR = 0,
+        RayQueryCommittedIntersectionKHR = 1,
+    },
+
+    RayQueryCommittedIntersectionType = {
+        RayQueryCommittedIntersectionNoneKHR = 0,
+        RayQueryCommittedIntersectionTriangleKHR = 1,
+        RayQueryCommittedIntersectionGeneratedKHR = 2,
+    },
+
+    RayQueryCandidateIntersectionType = {
+        RayQueryCandidateIntersectionTriangleKHR = 0,
+        RayQueryCandidateIntersectionAABBKHR = 1,
+    },
+
     Op = {
         OpNop = 0,
         OpUndef = 1,
@@ -1215,6 +1289,13 @@
         OpSubgroupAnyKHR = 4429,
         OpSubgroupAllEqualKHR = 4430,
         OpSubgroupReadInvocationKHR = 4432,
+        OpTypeRayQueryProvisionalKHR = 4472,
+        OpRayQueryInitializeKHR = 4473,
+        OpRayQueryTerminateKHR = 4474,
+        OpRayQueryGenerateIntersectionKHR = 4475,
+        OpRayQueryConfirmIntersectionKHR = 4476,
+        OpRayQueryProceedKHR = 4477,
+        OpRayQueryGetIntersectionTypeKHR = 4479,
         OpGroupIAddNonUniformAMD = 5000,
         OpGroupFAddNonUniformAMD = 5001,
         OpGroupFMinNonUniformAMD = 5002,
@@ -1229,11 +1310,17 @@
         OpImageSampleFootprintNV = 5283,
         OpGroupNonUniformPartitionNV = 5296,
         OpWritePackedPrimitiveIndices4x8NV = 5299,
+        OpReportIntersectionKHR = 5334,
         OpReportIntersectionNV = 5334,
+        OpIgnoreIntersectionKHR = 5335,
         OpIgnoreIntersectionNV = 5335,
+        OpTerminateRayKHR = 5336,
         OpTerminateRayNV = 5336,
         OpTraceNV = 5337,
+        OpTraceRayKHR = 5337,
+        OpTypeAccelerationStructureKHR = 5341,
         OpTypeAccelerationStructureNV = 5341,
+        OpExecuteCallableKHR = 5344,
         OpExecuteCallableNV = 5344,
         OpTypeCooperativeMatrixNV = 5358,
         OpCooperativeMatrixLoadNV = 5359,
@@ -1390,6 +1477,23 @@
         OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
         OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
         OpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+        OpRayQueryGetRayTMinKHR = 6016,
+        OpRayQueryGetRayFlagsKHR = 6017,
+        OpRayQueryGetIntersectionTKHR = 6018,
+        OpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+        OpRayQueryGetIntersectionInstanceIdKHR = 6020,
+        OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+        OpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+        OpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+        OpRayQueryGetIntersectionBarycentricsKHR = 6024,
+        OpRayQueryGetIntersectionFrontFaceKHR = 6025,
+        OpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+        OpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+        OpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+        OpRayQueryGetWorldRayDirectionKHR = 6029,
+        OpRayQueryGetWorldRayOriginKHR = 6030,
+        OpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+        OpRayQueryGetIntersectionWorldToObjectKHR = 6032,
     },
 
 }
diff --git a/include/spirv/unified1/spirv.py b/include/spirv/unified1/spirv.py
index 6968e7b..a7344aa 100644
--- a/include/spirv/unified1/spirv.py
+++ b/include/spirv/unified1/spirv.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2014-2019 The Khronos Group Inc.
+# Copyright (c) 2014-2020 The Khronos Group Inc.
 # 
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and/or associated documentation files (the "Materials"),
@@ -68,11 +68,17 @@
         'Kernel' : 6,
         'TaskNV' : 5267,
         'MeshNV' : 5268,
+        'RayGenerationKHR' : 5313,
         'RayGenerationNV' : 5313,
+        'IntersectionKHR' : 5314,
         'IntersectionNV' : 5314,
+        'AnyHitKHR' : 5315,
         'AnyHitNV' : 5315,
+        'ClosestHitKHR' : 5316,
         'ClosestHitNV' : 5316,
+        'MissKHR' : 5317,
         'MissNV' : 5317,
+        'CallableKHR' : 5318,
         'CallableNV' : 5318,
     },
 
@@ -165,11 +171,17 @@
         'AtomicCounter' : 10,
         'Image' : 11,
         'StorageBuffer' : 12,
+        'CallableDataKHR' : 5328,
         'CallableDataNV' : 5328,
+        'IncomingCallableDataKHR' : 5329,
         'IncomingCallableDataNV' : 5329,
+        'RayPayloadKHR' : 5338,
         'RayPayloadNV' : 5338,
+        'HitAttributeKHR' : 5339,
         'HitAttributeNV' : 5339,
+        'IncomingRayPayloadKHR' : 5342,
         'IncomingRayPayloadNV' : 5342,
+        'ShaderRecordBufferKHR' : 5343,
         'ShaderRecordBufferNV' : 5343,
         'PhysicalStorageBuffer' : 5349,
         'PhysicalStorageBufferEXT' : 5349,
@@ -530,20 +542,35 @@
         'FragmentSizeNV' : 5292,
         'FragInvocationCountEXT' : 5293,
         'InvocationsPerPixelNV' : 5293,
+        'LaunchIdKHR' : 5319,
         'LaunchIdNV' : 5319,
+        'LaunchSizeKHR' : 5320,
         'LaunchSizeNV' : 5320,
+        'WorldRayOriginKHR' : 5321,
         'WorldRayOriginNV' : 5321,
+        'WorldRayDirectionKHR' : 5322,
         'WorldRayDirectionNV' : 5322,
+        'ObjectRayOriginKHR' : 5323,
         'ObjectRayOriginNV' : 5323,
+        'ObjectRayDirectionKHR' : 5324,
         'ObjectRayDirectionNV' : 5324,
+        'RayTminKHR' : 5325,
         'RayTminNV' : 5325,
+        'RayTmaxKHR' : 5326,
         'RayTmaxNV' : 5326,
+        'InstanceCustomIndexKHR' : 5327,
         'InstanceCustomIndexNV' : 5327,
+        'ObjectToWorldKHR' : 5330,
         'ObjectToWorldNV' : 5330,
+        'WorldToObjectKHR' : 5331,
         'WorldToObjectNV' : 5331,
+        'HitTKHR' : 5332,
         'HitTNV' : 5332,
+        'HitKindKHR' : 5333,
         'HitKindNV' : 5333,
+        'IncomingRayFlagsKHR' : 5351,
         'IncomingRayFlagsNV' : 5351,
+        'RayGeometryIndexKHR' : 5352,
         'WarpsPerSMNV' : 5374,
         'SMCountNV' : 5375,
         'WarpIDNV' : 5376,
@@ -675,6 +702,7 @@
         'Invocation' : 4,
         'QueueFamily' : 5,
         'QueueFamilyKHR' : 5,
+        'ShaderCallKHR' : 6,
     },
 
     'GroupOperation' : {
@@ -795,6 +823,8 @@
         'SignedZeroInfNanPreserve' : 4466,
         'RoundingModeRTE' : 4467,
         'RoundingModeRTZ' : 4468,
+        'RayQueryProvisionalKHR' : 4471,
+        'RayTraversalPrimitiveCullingProvisionalKHR' : 4478,
         'Float16ImageAMD' : 5008,
         'ImageGatherBiasLodAMD' : 5009,
         'FragmentMaskAMD' : 5010,
@@ -848,6 +878,7 @@
         'PhysicalStorageBufferAddresses' : 5347,
         'PhysicalStorageBufferAddressesEXT' : 5347,
         'ComputeDerivativeGroupLinearNV' : 5350,
+        'RayTracingProvisionalKHR' : 5353,
         'CooperativeMatrixNV' : 5357,
         'FragmentShaderSampleInterlockEXT' : 5363,
         'FragmentShaderShadingRateInterlockEXT' : 5372,
@@ -864,6 +895,49 @@
         'SubgroupAvcMotionEstimationChromaINTEL' : 5698,
     },
 
+    'RayFlagsShift' : {
+        'OpaqueKHR' : 0,
+        'NoOpaqueKHR' : 1,
+        'TerminateOnFirstHitKHR' : 2,
+        'SkipClosestHitShaderKHR' : 3,
+        'CullBackFacingTrianglesKHR' : 4,
+        'CullFrontFacingTrianglesKHR' : 5,
+        'CullOpaqueKHR' : 6,
+        'CullNoOpaqueKHR' : 7,
+        'SkipTrianglesKHR' : 8,
+        'SkipAABBsKHR' : 9,
+    },
+
+    'RayFlagsMask' : {
+        'MaskNone' : 0,
+        'OpaqueKHR' : 0x00000001,
+        'NoOpaqueKHR' : 0x00000002,
+        'TerminateOnFirstHitKHR' : 0x00000004,
+        'SkipClosestHitShaderKHR' : 0x00000008,
+        'CullBackFacingTrianglesKHR' : 0x00000010,
+        'CullFrontFacingTrianglesKHR' : 0x00000020,
+        'CullOpaqueKHR' : 0x00000040,
+        'CullNoOpaqueKHR' : 0x00000080,
+        'SkipTrianglesKHR' : 0x00000100,
+        'SkipAABBsKHR' : 0x00000200,
+    },
+
+    'RayQueryIntersection' : {
+        'RayQueryCandidateIntersectionKHR' : 0,
+        'RayQueryCommittedIntersectionKHR' : 1,
+    },
+
+    'RayQueryCommittedIntersectionType' : {
+        'RayQueryCommittedIntersectionNoneKHR' : 0,
+        'RayQueryCommittedIntersectionTriangleKHR' : 1,
+        'RayQueryCommittedIntersectionGeneratedKHR' : 2,
+    },
+
+    'RayQueryCandidateIntersectionType' : {
+        'RayQueryCandidateIntersectionTriangleKHR' : 0,
+        'RayQueryCandidateIntersectionAABBKHR' : 1,
+    },
+
     'Op' : {
         'OpNop' : 0,
         'OpUndef' : 1,
@@ -1215,6 +1289,13 @@
         'OpSubgroupAnyKHR' : 4429,
         'OpSubgroupAllEqualKHR' : 4430,
         'OpSubgroupReadInvocationKHR' : 4432,
+        'OpTypeRayQueryProvisionalKHR' : 4472,
+        'OpRayQueryInitializeKHR' : 4473,
+        'OpRayQueryTerminateKHR' : 4474,
+        'OpRayQueryGenerateIntersectionKHR' : 4475,
+        'OpRayQueryConfirmIntersectionKHR' : 4476,
+        'OpRayQueryProceedKHR' : 4477,
+        'OpRayQueryGetIntersectionTypeKHR' : 4479,
         'OpGroupIAddNonUniformAMD' : 5000,
         'OpGroupFAddNonUniformAMD' : 5001,
         'OpGroupFMinNonUniformAMD' : 5002,
@@ -1229,11 +1310,17 @@
         'OpImageSampleFootprintNV' : 5283,
         'OpGroupNonUniformPartitionNV' : 5296,
         'OpWritePackedPrimitiveIndices4x8NV' : 5299,
+        'OpReportIntersectionKHR' : 5334,
         'OpReportIntersectionNV' : 5334,
+        'OpIgnoreIntersectionKHR' : 5335,
         'OpIgnoreIntersectionNV' : 5335,
+        'OpTerminateRayKHR' : 5336,
         'OpTerminateRayNV' : 5336,
         'OpTraceNV' : 5337,
+        'OpTraceRayKHR' : 5337,
+        'OpTypeAccelerationStructureKHR' : 5341,
         'OpTypeAccelerationStructureNV' : 5341,
+        'OpExecuteCallableKHR' : 5344,
         'OpExecuteCallableNV' : 5344,
         'OpTypeCooperativeMatrixNV' : 5358,
         'OpCooperativeMatrixLoadNV' : 5359,
@@ -1390,6 +1477,23 @@
         'OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL' : 5814,
         'OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL' : 5815,
         'OpSubgroupAvcSicGetInterRawSadsINTEL' : 5816,
+        'OpRayQueryGetRayTMinKHR' : 6016,
+        'OpRayQueryGetRayFlagsKHR' : 6017,
+        'OpRayQueryGetIntersectionTKHR' : 6018,
+        'OpRayQueryGetIntersectionInstanceCustomIndexKHR' : 6019,
+        'OpRayQueryGetIntersectionInstanceIdKHR' : 6020,
+        'OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR' : 6021,
+        'OpRayQueryGetIntersectionGeometryIndexKHR' : 6022,
+        'OpRayQueryGetIntersectionPrimitiveIndexKHR' : 6023,
+        'OpRayQueryGetIntersectionBarycentricsKHR' : 6024,
+        'OpRayQueryGetIntersectionFrontFaceKHR' : 6025,
+        'OpRayQueryGetIntersectionCandidateAABBOpaqueKHR' : 6026,
+        'OpRayQueryGetIntersectionObjectRayDirectionKHR' : 6027,
+        'OpRayQueryGetIntersectionObjectRayOriginKHR' : 6028,
+        'OpRayQueryGetWorldRayDirectionKHR' : 6029,
+        'OpRayQueryGetWorldRayOriginKHR' : 6030,
+        'OpRayQueryGetIntersectionObjectToWorldKHR' : 6031,
+        'OpRayQueryGetIntersectionWorldToObjectKHR' : 6032,
     },
 
 }
diff --git a/include/spirv/unified1/spv.d b/include/spirv/unified1/spv.d
index ec5a161..2c76658 100644
--- a/include/spirv/unified1/spv.d
+++ b/include/spirv/unified1/spv.d
@@ -1,5 +1,5 @@
 /+
- + Copyright (c) 2014-2019 The Khronos Group Inc.
+ + Copyright (c) 2014-2020 The Khronos Group Inc.
  + 
  + Permission is hereby granted, free of charge, to any person obtaining a copy
  + of this software and/or associated documentation files (the "Materials"),
@@ -77,11 +77,17 @@
     Kernel = 6,
     TaskNV = 5267,
     MeshNV = 5268,
+    RayGenerationKHR = 5313,
     RayGenerationNV = 5313,
+    IntersectionKHR = 5314,
     IntersectionNV = 5314,
+    AnyHitKHR = 5315,
     AnyHitNV = 5315,
+    ClosestHitKHR = 5316,
     ClosestHitNV = 5316,
+    MissKHR = 5317,
     MissNV = 5317,
+    CallableKHR = 5318,
     CallableNV = 5318,
 }
 
@@ -178,11 +184,17 @@
     AtomicCounter = 10,
     Image = 11,
     StorageBuffer = 12,
+    CallableDataKHR = 5328,
     CallableDataNV = 5328,
+    IncomingCallableDataKHR = 5329,
     IncomingCallableDataNV = 5329,
+    RayPayloadKHR = 5338,
     RayPayloadNV = 5338,
+    HitAttributeKHR = 5339,
     HitAttributeNV = 5339,
+    IncomingRayPayloadKHR = 5342,
     IncomingRayPayloadNV = 5342,
+    ShaderRecordBufferKHR = 5343,
     ShaderRecordBufferNV = 5343,
     PhysicalStorageBuffer = 5349,
     PhysicalStorageBufferEXT = 5349,
@@ -559,20 +571,35 @@
     FragmentSizeNV = 5292,
     FragInvocationCountEXT = 5293,
     InvocationsPerPixelNV = 5293,
+    LaunchIdKHR = 5319,
     LaunchIdNV = 5319,
+    LaunchSizeKHR = 5320,
     LaunchSizeNV = 5320,
+    WorldRayOriginKHR = 5321,
     WorldRayOriginNV = 5321,
+    WorldRayDirectionKHR = 5322,
     WorldRayDirectionNV = 5322,
+    ObjectRayOriginKHR = 5323,
     ObjectRayOriginNV = 5323,
+    ObjectRayDirectionKHR = 5324,
     ObjectRayDirectionNV = 5324,
+    RayTminKHR = 5325,
     RayTminNV = 5325,
+    RayTmaxKHR = 5326,
     RayTmaxNV = 5326,
+    InstanceCustomIndexKHR = 5327,
     InstanceCustomIndexNV = 5327,
+    ObjectToWorldKHR = 5330,
     ObjectToWorldNV = 5330,
+    WorldToObjectKHR = 5331,
     WorldToObjectNV = 5331,
+    HitTKHR = 5332,
     HitTNV = 5332,
+    HitKindKHR = 5333,
     HitKindNV = 5333,
+    IncomingRayFlagsKHR = 5351,
     IncomingRayFlagsNV = 5351,
+    RayGeometryIndexKHR = 5352,
     WarpsPerSMNV = 5374,
     SMCountNV = 5375,
     WarpIDNV = 5376,
@@ -715,6 +742,7 @@
     Invocation = 4,
     QueueFamily = 5,
     QueueFamilyKHR = 5,
+    ShaderCallKHR = 6,
 }
 
 enum GroupOperation : uint
@@ -840,6 +868,8 @@
     SignedZeroInfNanPreserve = 4466,
     RoundingModeRTE = 4467,
     RoundingModeRTZ = 4468,
+    RayQueryProvisionalKHR = 4471,
+    RayTraversalPrimitiveCullingProvisionalKHR = 4478,
     Float16ImageAMD = 5008,
     ImageGatherBiasLodAMD = 5009,
     FragmentMaskAMD = 5010,
@@ -893,6 +923,7 @@
     PhysicalStorageBufferAddresses = 5347,
     PhysicalStorageBufferAddressesEXT = 5347,
     ComputeDerivativeGroupLinearNV = 5350,
+    RayTracingProvisionalKHR = 5353,
     CooperativeMatrixNV = 5357,
     FragmentShaderSampleInterlockEXT = 5363,
     FragmentShaderShadingRateInterlockEXT = 5372,
@@ -909,6 +940,54 @@
     SubgroupAvcMotionEstimationChromaINTEL = 5698,
 }
 
+enum RayFlagsShift : uint
+{
+    OpaqueKHR = 0,
+    NoOpaqueKHR = 1,
+    TerminateOnFirstHitKHR = 2,
+    SkipClosestHitShaderKHR = 3,
+    CullBackFacingTrianglesKHR = 4,
+    CullFrontFacingTrianglesKHR = 5,
+    CullOpaqueKHR = 6,
+    CullNoOpaqueKHR = 7,
+    SkipTrianglesKHR = 8,
+    SkipAABBsKHR = 9,
+}
+
+enum RayFlagsMask : uint
+{
+    MaskNone = 0,
+    OpaqueKHR = 0x00000001,
+    NoOpaqueKHR = 0x00000002,
+    TerminateOnFirstHitKHR = 0x00000004,
+    SkipClosestHitShaderKHR = 0x00000008,
+    CullBackFacingTrianglesKHR = 0x00000010,
+    CullFrontFacingTrianglesKHR = 0x00000020,
+    CullOpaqueKHR = 0x00000040,
+    CullNoOpaqueKHR = 0x00000080,
+    SkipTrianglesKHR = 0x00000100,
+    SkipAABBsKHR = 0x00000200,
+}
+
+enum RayQueryIntersection : uint
+{
+    RayQueryCandidateIntersectionKHR = 0,
+    RayQueryCommittedIntersectionKHR = 1,
+}
+
+enum RayQueryCommittedIntersectionType : uint
+{
+    RayQueryCommittedIntersectionNoneKHR = 0,
+    RayQueryCommittedIntersectionTriangleKHR = 1,
+    RayQueryCommittedIntersectionGeneratedKHR = 2,
+}
+
+enum RayQueryCandidateIntersectionType : uint
+{
+    RayQueryCandidateIntersectionTriangleKHR = 0,
+    RayQueryCandidateIntersectionAABBKHR = 1,
+}
+
 enum Op : uint
 {
     OpNop = 0,
@@ -1261,6 +1340,13 @@
     OpSubgroupAnyKHR = 4429,
     OpSubgroupAllEqualKHR = 4430,
     OpSubgroupReadInvocationKHR = 4432,
+    OpTypeRayQueryProvisionalKHR = 4472,
+    OpRayQueryInitializeKHR = 4473,
+    OpRayQueryTerminateKHR = 4474,
+    OpRayQueryGenerateIntersectionKHR = 4475,
+    OpRayQueryConfirmIntersectionKHR = 4476,
+    OpRayQueryProceedKHR = 4477,
+    OpRayQueryGetIntersectionTypeKHR = 4479,
     OpGroupIAddNonUniformAMD = 5000,
     OpGroupFAddNonUniformAMD = 5001,
     OpGroupFMinNonUniformAMD = 5002,
@@ -1275,11 +1361,17 @@
     OpImageSampleFootprintNV = 5283,
     OpGroupNonUniformPartitionNV = 5296,
     OpWritePackedPrimitiveIndices4x8NV = 5299,
+    OpReportIntersectionKHR = 5334,
     OpReportIntersectionNV = 5334,
+    OpIgnoreIntersectionKHR = 5335,
     OpIgnoreIntersectionNV = 5335,
+    OpTerminateRayKHR = 5336,
     OpTerminateRayNV = 5336,
     OpTraceNV = 5337,
+    OpTraceRayKHR = 5337,
+    OpTypeAccelerationStructureKHR = 5341,
     OpTypeAccelerationStructureNV = 5341,
+    OpExecuteCallableKHR = 5344,
     OpExecuteCallableNV = 5344,
     OpTypeCooperativeMatrixNV = 5358,
     OpCooperativeMatrixLoadNV = 5359,
@@ -1436,6 +1528,23 @@
     OpSubgroupAvcSicGetPackedSkcLumaCountThresholdINTEL = 5814,
     OpSubgroupAvcSicGetPackedSkcLumaSumThresholdINTEL = 5815,
     OpSubgroupAvcSicGetInterRawSadsINTEL = 5816,
+    OpRayQueryGetRayTMinKHR = 6016,
+    OpRayQueryGetRayFlagsKHR = 6017,
+    OpRayQueryGetIntersectionTKHR = 6018,
+    OpRayQueryGetIntersectionInstanceCustomIndexKHR = 6019,
+    OpRayQueryGetIntersectionInstanceIdKHR = 6020,
+    OpRayQueryGetIntersectionInstanceShaderBindingTableRecordOffsetKHR = 6021,
+    OpRayQueryGetIntersectionGeometryIndexKHR = 6022,
+    OpRayQueryGetIntersectionPrimitiveIndexKHR = 6023,
+    OpRayQueryGetIntersectionBarycentricsKHR = 6024,
+    OpRayQueryGetIntersectionFrontFaceKHR = 6025,
+    OpRayQueryGetIntersectionCandidateAABBOpaqueKHR = 6026,
+    OpRayQueryGetIntersectionObjectRayDirectionKHR = 6027,
+    OpRayQueryGetIntersectionObjectRayOriginKHR = 6028,
+    OpRayQueryGetWorldRayDirectionKHR = 6029,
+    OpRayQueryGetWorldRayOriginKHR = 6030,
+    OpRayQueryGetIntersectionObjectToWorldKHR = 6031,
+    OpRayQueryGetIntersectionWorldToObjectKHR = 6032,
 }
 
 
diff --git a/tools/buildHeaders/bin/generate_language_headers.py b/tools/buildHeaders/bin/generate_language_headers.py
new file mode 100755
index 0000000..c56780c
--- /dev/null
+++ b/tools/buildHeaders/bin/generate_language_headers.py
@@ -0,0 +1,242 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017-2020 Google LLC
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and/or associated documentation files (the
+# "Materials"), to deal in the Materials without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Materials, and to
+# permit persons to whom the Materials are furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Materials.
+#
+# MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+# KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+# SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+#    https://www.khronos.org/registry/
+#
+# THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+
+"""Generates a C language headers from a SPIR-V JSON grammar file"""
+
+import errno
+import json
+import os.path
+import re
+
+DEFAULT_COPYRIGHT="""Copyright (c) 2020 The Khronos Group Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and/or associated documentation files (the
+"Materials"), to deal in the Materials without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Materials, and to
+permit persons to whom the Materials are furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Materials.
+
+MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
+KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
+SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
+   https://www.khronos.org/registry/
+
+THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+""".split('\n')
+
+def make_path_to_file(f):
+    """Makes all ancestor directories to the given file, if they
+    don't yet exist.
+
+    Arguments:
+        f: The file whose ancestor directories are to be created.
+    """
+    dir = os.path.dirname(os.path.abspath(f))
+    try:
+        os.makedirs(dir)
+    except OSError as e:
+        if e.errno == errno.EEXIST and os.path.isdir(dir):
+            pass
+        else:
+            raise
+
+class ExtInstGrammar:
+    """The grammar for an extended instruction set"""
+
+    def __init__(self, name, copyright, instructions, operand_kinds, version = None, revision = None):
+       self.name = name
+       self.copyright = copyright
+       self.instructions = instructions
+       self.operand_kinds = operand_kinds
+       self.version = version
+       self.revision = revision
+
+
+class LangGenerator:
+    """A language-specific generator"""
+
+    def __init__(self):
+        self.upper_case_initial = re.compile('^[A-Z]')
+        pass
+
+    def comment_prefix(self):
+        return ""
+
+    def namespace_prefix(self):
+        return ""
+
+    def uses_guards(self):
+        return False
+
+    def cpp_guard_preamble(self):
+        return ""
+
+    def cpp_guard_postamble(self):
+        return ""
+
+    def enum_value(self, prefix, name, value):
+        if self.upper_case_initial.match(name):
+            use_name = name
+        else:
+            use_name = '_' + name
+
+        return "    {}{} = {},".format(prefix, use_name, value)
+
+    def generate(self, grammar):
+        """Returns a string that is the language-specific header for the given grammar"""
+
+        parts = []
+        if grammar.copyright:
+            parts.extend(["{}{}".format(self.comment_prefix(), f) for f in grammar.copyright])
+        parts.append('')
+
+        guard = 'SPIRV_UNIFIED1_{}_H_'.format(grammar.name)
+        if self.uses_guards:
+            parts.append('#ifndef {}'.format(guard))
+            parts.append('#define {}'.format(guard))
+        parts.append('')
+
+        parts.append(self.cpp_guard_preamble())
+
+        if grammar.version:
+            parts.append(self.const_definition(grammar.name, 'Version', grammar.version))
+
+        if grammar.revision is not None:
+            parts.append(self.const_definition(grammar.name, 'Revision', grammar.revision))
+
+        parts.append('')
+
+        if grammar.instructions:
+            parts.append(self.enum_prefix(grammar.name, 'Instructions'))
+            for inst in grammar.instructions:
+                parts.append(self.enum_value(grammar.name, inst['opname'], inst['opcode']))
+            parts.append(self.enum_end(grammar.name, 'Instructions'))
+            parts.append('')
+
+        if grammar.operand_kinds:
+            for kind in grammar.operand_kinds:
+                parts.append(self.enum_prefix(grammar.name, kind['kind']))
+                for e in kind['enumerants']:
+                    parts.append(self.enum_value(grammar.name, e['enumerant'], e['value']))
+                parts.append(self.enum_end(grammar.name, kind['kind']))
+            parts.append('')
+
+        parts.append(self.cpp_guard_postamble())
+
+        if self.uses_guards:
+            parts.append('#endif // {}'.format(guard))
+
+        # Ensre the file ends in an end of line
+        parts.append('')
+
+        return '\n'.join(parts)
+
+
+class CLikeGenerator(LangGenerator):
+    def uses_guards(self):
+        return True
+
+    def comment_prefix(self):
+        return "// "
+
+    def const_definition(self, prefix, var, value):
+        # Use an anonymous enum.  Don't use a static const int variable because
+        # that can bloat binary size.
+        return 'enum {0}{1}{2}{3} = {4},{1}{2}{3}_BitWidthPadding = 0x7fffffff{5};'.format(
+               '{', '\n    ', prefix, var, value, '\n}')
+
+    def enum_prefix(self, prefix, name):
+        return 'enum {}{} {}'.format(prefix, name, '{')
+
+    def enum_end(self, prefix, enum):
+        return '    {}{}Max = 0x7fffffff\n{};\n'.format(prefix, enum, '}')
+
+    def cpp_guard_preamble(self):
+        return '#ifdef __cplusplus\nextern "C" {\n#endif\n'
+
+    def cpp_guard_postamble(self):
+        return '#ifdef __cplusplus\n}\n#endif\n'
+
+
+class CGenerator(CLikeGenerator):
+    pass
+
+
+def main():
+    import argparse
+    parser = argparse.ArgumentParser(description='Generate language headers from a JSON grammar')
+
+    parser.add_argument('--extinst-name',
+                        type=str, required=True,
+                        help='The name to use in tokens')
+    parser.add_argument('--extinst-grammar', metavar='<path>',
+                        type=str, required=True,
+                        help='input JSON grammar file for extended instruction set')
+    parser.add_argument('--extinst-output-base', metavar='<path>',
+                        type=str, required=True,
+                        help='Basename of the language-specific output file.')
+    args = parser.parse_args()
+
+    with open(args.extinst_grammar) as json_file:
+        grammar_json = json.loads(json_file.read())
+        if 'copyright' in grammar_json:
+          copyright = grammar_json['copyright']
+        else:
+          copyright = DEFAULT_COPYRIGHT
+        if 'version' in grammar_json:
+          version = grammar_json['version']
+        else:
+          version = 0
+        if 'operand_kinds' in grammar_json:
+          operand_kinds = grammar_json['operand_kinds']
+        else:
+          operand_kinds = []
+
+        grammar = ExtInstGrammar(name = args.extinst_name,
+                                 copyright = copyright,
+                                 instructions = grammar_json['instructions'],
+                                 operand_kinds = operand_kinds,
+                                 version = version,
+                                 revision = grammar_json['revision'])
+        make_path_to_file(args.extinst_output_base)
+        with open(args.extinst_output_base + '.h', 'w') as f:
+            f.write(CGenerator().generate(grammar))
+
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/buildHeaders/bin/makeExtinstHeaders.py b/tools/buildHeaders/bin/makeExtinstHeaders.py
new file mode 100755
index 0000000..780e479
--- /dev/null
+++ b/tools/buildHeaders/bin/makeExtinstHeaders.py
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+"""Generate C headers for certain extended instruction sets"""
+
+import subprocess
+import os
+
+# Assume we are running from the tools/buildHeaders directory
+os.chdir('../../include/spirv/unified1')
+
+def mk_extinst(name, grammar_file):
+  """Generate one C header from a grammar"""
+  script = '../../../tools/buildHeaders/bin/generate_language_headers.py'
+  subprocess.check_call(['python3',
+                         script,
+                         '--extinst-name=' + name,
+                         '--extinst-grammar=' + grammar_file,
+                         '--extinst-output-base=' + name])
+  subprocess.check_call(['dos2unix', name + '.h'])
+
+
+mk_extinst('DebugInfo', 'extinst.debuginfo.grammar.json')
+mk_extinst('OpenCLDebugInfo100', 'extinst.opencl.debuginfo.100.grammar.json')
+mk_extinst('AMD_gcn_shader', 'extinst.spv-amd-gcn-shader.grammar.json')
+mk_extinst('AMD_shader_ballot', 'extinst.spv-amd-shader-ballot.grammar.json')
+mk_extinst('AMD_shader_explicit_vertex_parameter', 'extinst.spv-amd-shader-explicit-vertex-parameter.grammar.json')
+mk_extinst('AMD_shader_trinary_minmax', 'extinst.spv-amd-shader-trinary-minmax.grammar.json')
+mk_extinst('NonSemanticDebugPrintf', 'extinst.nonsemantic.debugprintf.grammar.json')
diff --git a/tools/buildHeaders/bin/makeHeaders b/tools/buildHeaders/bin/makeHeaders
index 47d2218..0ca0b2f 100755
--- a/tools/buildHeaders/bin/makeHeaders
+++ b/tools/buildHeaders/bin/makeHeaders
@@ -1,5 +1,7 @@
 #!/usr/bin/env bash
 
+python3 bin/makeExtinstHeaders.py
+
 cd ../../include/spirv/unified1
 ../../../tools/buildHeaders/build/install/bin/buildSpvHeaders -H spirv.core.grammar.json
 dos2unix spirv.* SpirV.* spv.*
diff --git a/tools/buildHeaders/header.cpp b/tools/buildHeaders/header.cpp
index 0f65291..7e8f668 100644
--- a/tools/buildHeaders/header.cpp
+++ b/tools/buildHeaders/header.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -169,7 +169,7 @@
     }
 
     const std::string TPrinter::DocCopyright =
-        "Copyright (c) 2014-2019 The Khronos Group Inc.\n"
+        "Copyright (c) 2014-2020 The Khronos Group Inc.\n"
         "\n"
         "Permission is hereby granted, free of charge, to any person obtaining a copy\n"
         "of this software and/or associated documentation files (the \"Materials\"),\n"
diff --git a/tools/buildHeaders/jsonToSpirv.cpp b/tools/buildHeaders/jsonToSpirv.cpp
index 2190bd3..5cca0b9 100644
--- a/tools/buildHeaders/jsonToSpirv.cpp
+++ b/tools/buildHeaders/jsonToSpirv.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -77,6 +77,10 @@
 EnumValues KernelEnqueueFlagsParams;
 EnumValues KernelProfilingInfoParams;
 EnumValues CapabilityParams;
+EnumValues RayFlagsParams;
+EnumValues RayQueryIntersectionParams;
+EnumValues RayQueryCommittedIntersectionTypeParams;
+EnumValues RayQueryCandidateIntersectionTypeParams;
 
 std::pair<bool, std::string> ReadFile(const std::string& path)
 {
@@ -146,7 +150,7 @@
         } else if (operandKind == "LiteralSpecConstantOpInteger") {
             type = OperandLiteralNumber;
         } else if (operandKind == "LiteralContextDependentNumber") {
-            type = OperandVariableLiterals;
+            type = OperandAnySizeLiteralNumber;
         } else if (operandKind == "SourceLanguage") {
             type = OperandSource;
         } else if (operandKind == "ExecutionModel") {
@@ -203,6 +207,14 @@
             type = OperandFunction;
         } else if (operandKind == "MemoryAccess") {
             type = OperandMemoryOperands;
+        } else if (operandKind == "RayFlags") {
+            type = OperandRayFlags;
+        } else if (operandKind == "RayQueryIntersection") {
+            type = OperandRayQueryIntersection;
+        } else if (operandKind == "RayQueryCommittedIntersectionType") {
+            type = OperandRayQueryCommittedIntersectionType;
+        } else if (operandKind == "RayQueryCandidateIntersectionType") {
+            type = OperandRayQueryCandidateIntersectionType;
         }
 
         if (type == OperandNone) {
@@ -463,6 +475,14 @@
             establishOperandClass(enumName, OperandKernelEnqueueFlags, &KernelEnqueueFlagsParams, operandEnum, category);
         } else if (enumName == "KernelProfilingInfo") {
             establishOperandClass(enumName, OperandKernelProfilingInfo, &KernelProfilingInfoParams, operandEnum, category);
+        } else if (enumName == "RayFlags") {
+            establishOperandClass(enumName, OperandRayFlags, &RayFlagsParams, operandEnum, category);
+        } else if (enumName == "RayQueryIntersection") {
+            establishOperandClass(enumName, OperandRayQueryIntersection, &RayQueryIntersectionParams, operandEnum, category);
+        } else if (enumName == "RayQueryCommittedIntersectionType") {
+            establishOperandClass(enumName, OperandRayQueryCommittedIntersectionType, &RayQueryCommittedIntersectionTypeParams, operandEnum, category);
+        } else if (enumName == "RayQueryCandidateIntersectionType") {
+            establishOperandClass(enumName, OperandRayQueryCandidateIntersectionType, &RayQueryCandidateIntersectionTypeParams, operandEnum, category);
         }
     }
 }
diff --git a/tools/buildHeaders/jsonToSpirv.h b/tools/buildHeaders/jsonToSpirv.h
index 0764de3..9a5eafd 100644
--- a/tools/buildHeaders/jsonToSpirv.h
+++ b/tools/buildHeaders/jsonToSpirv.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014-2019 The Khronos Group Inc.
+// Copyright (c) 2014-2020 The Khronos Group Inc.
 // 
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and/or associated documentation files (the "Materials"),
@@ -51,6 +51,7 @@
     OperandVariableLiterals,
     OperandVariableIdLiteral,
     OperandVariableLiteralId,
+    OperandAnySizeLiteralNumber,
     OperandLiteralNumber,
     OperandLiteralString,
     OperandSource,
@@ -83,6 +84,10 @@
     OperandKernelEnqueueFlags,
     OperandKernelProfilingInfo,
     OperandCapability,
+    OperandRayFlags,
+    OperandRayQueryIntersection,
+    OperandRayQueryCommittedIntersectionType,
+    OperandRayQueryCandidateIntersectionType,
 
     OperandOpcode,