From 93df316eda2325aa2d82647e3ed474d87bff5d48 Mon Sep 17 00:00:00 2001
From: Alan Baker <alanbaker@google.com>
Date: Mon, 25 Nov 2019 13:03:36 -0500
Subject: [PATCH] Fix SPIR-V assembly tests with bad cfgs

* Update SPIR-V assembly tests to not declare a continue target as a
merge block

Component: Vulkan

VK-GL-CTS Issue: 2122

Affects:
dEQP-VK.spirv_assembly.instruction.graphics.switch_block_order.out_of_order*
dEQP-VK.spirv_assembly.instruction.graphics.opphi.out_of_order*
dEQP-VK.spirv_assembly.instruction.graphics.loop.multi_block_loop_construct*
dEQP-VK.spirv_assembly.instruction.graphics.loop.multi_block_continue_construct*
dEQP-VK.spirv_assembly.instruction.graphics.loop.continue*
dEQP-VK.spirv_assembly.instruction.graphics.loop.break*
dEQP-VK.spirv_assembly.instruction.graphics.loop.return*

Change-Id: I370331414aae27b53ed79b448b72581e2352c3d7
---

diff --git a/external/vulkancts/modules/vulkan/spirv_assembly/vktSpvAsmInstructionTests.cpp b/external/vulkancts/modules/vulkan/spirv_assembly/vktSpvAsmInstructionTests.cpp
index 2bdbc3f..60cee96 100644
--- a/external/vulkancts/modules/vulkan/spirv_assembly/vktSpvAsmInstructionTests.cpp
+++ b/external/vulkancts/modules/vulkan/spirv_assembly/vktSpvAsmInstructionTests.cpp
@@ -7560,7 +7560,7 @@
 		"%loop      = OpLabel\n"
 		"%ival      = OpLoad %i32 %iptr\n"
 		"%lt_4      = OpSLessThan %bool %ival %c_i32_4\n"
-		"             OpLoopMerge %exit %switch_exit None\n"
+		"             OpLoopMerge %exit %cont None\n"
 		"             OpBranchConditional %lt_4 %switch_entry %exit\n"

 		// Merge block for loop.
@@ -7597,6 +7597,8 @@
 		"%switch_exit    = OpLabel\n"
 		"%ival_next      = OpIAdd %i32 %ival %c_i32_1\n"
 		"                  OpStore %iptr %ival_next\n"
+		"                  OpBranch %cont\n"
+		"%cont           = OpLabel\n"
 		"                  OpBranch %loop\n"

 		"%case1          = OpLabel\n"
@@ -8044,7 +8046,7 @@
 		"%loop      = OpLabel\n"
 		"%ival      = OpLoad %i32 %iptr\n"
 		"%lt_4      = OpSLessThan %bool %ival %c_i32_4\n"
-		"             OpLoopMerge %exit %phi None\n"
+		"             OpLoopMerge %exit %cont None\n"
 		"             OpBranchConditional %lt_4 %entry %exit\n"

 		"%entry     = OpLabel\n"
@@ -8067,6 +8069,8 @@

 		"%phi       = OpLabel\n"
 		"%operand   = OpPhi %f32 %c_f32_p4 %case2 %c_f32_p5 %case1 %c_f32_p2 %case0 %c_f32_0 %case3\n" // not in the order of blocks
+		"             OpBranch %cont\n"
+		"%cont      = OpLabel\n"
 		"%add       = OpFAdd %f32 %val %operand\n"
 		"             OpStore %loc %add\n"
 		"%ival_next = OpIAdd %i32 %ival %c_i32_1\n"
@@ -9107,9 +9111,9 @@

 		";adds and subtracts 1.0 to %val in alternate iterations\n"
 		"%loop = OpLabel\n"
-		"%count = OpPhi %i32 %c_i32_4 %entry %count__ %gather\n"
-		"%delta = OpPhi %f32 %c_f32_1 %entry %delta_next %gather\n"
-		"%val1 = OpPhi %f32 %val0 %entry %val %gather\n"
+		"%count = OpPhi %i32 %c_i32_4 %entry %count__ %cont\n"
+		"%delta = OpPhi %f32 %c_f32_1 %entry %delta_next %cont\n"
+		"%val1 = OpPhi %f32 %val0 %entry %val %cont\n"
 		// There are several possibilities for the Continue Target below.  Each
 		// will be specialized into a separate test case.
 		"OpLoopMerge %exit ${continue_target} None\n"
@@ -9131,6 +9135,9 @@
 		"%delta_next = OpPhi %f32 %c_f32_n1 %even %c_f32_1 %odd\n"
 		"%val = OpFAdd %f32 %val1 %delta\n"
 		"%count__ = OpISub %i32 %count %c_i32_1\n"
+		"OpBranch %cont\n"
+
+		"%cont = OpLabel\n"
 		"%again = OpSGreaterThan %bool %count__ %c_i32_0\n"
 		"OpBranchConditional %again %loop %exit\n"

@@ -9148,7 +9155,7 @@
 	createTestsForAllStages("multi_block_continue_construct", defaultColors, defaultColors, fragments, testGroup.get());

 	// The Continue Target is at the end of the loop.
-	continue_target["continue_target"] = "%gather";
+	continue_target["continue_target"] = "%cont";
 	fragments["testfun"] = multiBlock.specialize(continue_target);
 	createTestsForAllStages("multi_block_loop_construct", defaultColors, defaultColors, fragments, testGroup.get());

@@ -9171,7 +9178,6 @@
 		"%if = OpLabel\n"
 		";skip if %count==2\n"
 		"%eq2 = OpIEqual %bool %count %c_i32_2\n"
-		"OpSelectionMerge %continue DontFlatten\n"
 		"OpBranchConditional %eq2 %continue %body\n"

 		"%body = OpLabel\n"
@@ -9216,7 +9222,6 @@
 		"%if = OpLabel\n"
 		";end loop if %count==%two\n"
 		"%above2 = OpSGreaterThan %bool %count %two\n"
-		"OpSelectionMerge %continue DontFlatten\n"
 		"OpBranchConditional %above2 %body %exit\n"

 		"%body = OpLabel\n"
@@ -9261,7 +9266,7 @@
 		"%if = OpLabel\n"
 		";return if %count==%two\n"
 		"%above2 = OpSGreaterThan %bool %count %two\n"
-		"OpSelectionMerge %continue DontFlatten\n"
+		"OpSelectionMerge %body DontFlatten\n"
 		"OpBranchConditional %above2 %body %early_exit\n"

 		"%early_exit = OpLabel\n"