third_party/llvm-7.0/llvm/test/DebugInfo/Generic/ptrsize.ll

; REQUIRES: object-emission

; RUN: %llc_dwarf -O0 -filetype=obj < %s > %t
; RUN: llvm-dwarfdump -v %t | FileCheck %s

; Check that pointers and references get emitted without size information in
; DWARF, even if they are so specified in the IR

; CHECK: 0x[[O1:[0-9a-f]+]]:   DW_TAG_pointer_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
; CHECK-NOT: DW_AT_byte_size
; CHECK: 0x[[O2:[0-9a-f]+]]:   DW_TAG_

; CHECK: 0x[[O3:[0-9a-f]+]]:   DW_TAG_reference_type
; CHECK-NEXT: DW_AT_type [DW_FORM_ref4]
; CHECK-NOT: DW_AT_byte_size

define i32 @foo() !dbg !4 {
entry:
  ret i32 0, !dbg !13
}

define i32 @bar() !dbg !5 {
entry:
  ret i32 0, !dbg !16
}

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!11, !12}

!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
!1 = !DIFile(filename: "dwarf-test.c", directory: "test")
!2 = !{}
!4 = distinct !DISubprogram(name: "foo", scope: !0, file: !1, line: 6, type: !6, isLocal: false, isDefinition: true, scopeLine: 6, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!5 = distinct !DISubprogram(name: "bar", scope: !0, file: !1, line: 6, type: !15, isLocal: false, isDefinition: true, scopeLine: 6, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
!6 = !DISubroutineType(types: !7)
!7 = !{!9}
!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !DIDerivedType(tag: DW_TAG_pointer_type, scope: !0, baseType: !8, size: 64, align: 64)
!10 = !DIDerivedType(tag: DW_TAG_reference_type, scope: !0, baseType: !8, size: 64, align: 64)
!11 = !{i32 2, !"Dwarf Version", i32 3}
!12 = !{i32 1, !"Debug Info Version", i32 3}
!13 = !DILocation(line: 7, scope: !4)
!14 = !{!10}
!15 = !DISubroutineType(types: !14)
!16 = !DILocation(line: 7, scope: !5)