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Diffstat (limited to 'llvm/test/DebugInfo/X86/lexical-block.ll')
| -rw-r--r-- | llvm/test/DebugInfo/X86/lexical-block.ll | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/llvm/test/DebugInfo/X86/lexical-block.ll b/llvm/test/DebugInfo/X86/lexical-block.ll new file mode 100644 index 00000000000..5f8ed349e13 --- /dev/null +++ b/llvm/test/DebugInfo/X86/lexical-block.ll @@ -0,0 +1,131 @@ +; RUN: llc -mtriple=x86_64-unknown-linux-gnu -filetype=obj -O0 < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s + +;; This test checks the following: +;; 1. Useless lexical block entry is not emitted. +;; 2. Function static variable, typedef, records (structure, class and union) +;; that are defined in lexical basic block are emitted as children to +;; these lexical blocks. +;; * For typedef and record check that both are emitted in lexical block +;; where they are declared and not in the one where they are used. +;; +;; This test was generated by running following command: +;; clang -cc1 -O0 -g -emit-llvm foo.cpp +;; Where foo.cpp +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;;int foo(void) { +;; { +;; { +;; struct X { +;; int x; +;; }; +;; typedef int Y; +;; { +;; X a; +;; Y b; +;; static int c; +;; return a.x + b + c; +;; } +;; } +;; } +;;} +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + + +; CHECK: DW_TAG_subprogram +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "foo" +; CHECK-NOT: NULL +; CHECK: DW_TAG_lexical_block + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_lexical_block + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_variable +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "a" + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_variable +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "b" + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_variable +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "c" + +; CHECK-NOT: {{DW_TAG}} +; CHECK: NULL + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_structure_type +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "X" +; CHECK: NULL + +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_TAG_typedef +; CHECK-NOT: {{DW_TAG|NULL}} +; CHECK: DW_AT_name {{.*}} "Y" + +; CHECK-NOT: {{DW_TAG}} +; CHECK: NULL + +%struct.X = type { i32 } + +@_ZZ3foovE1c = internal global i32 0, align 4 + +; Function Attrs: nounwind +define i32 @_Z3foov() #0 !dbg !7 { +entry: + %a = alloca %struct.X, align 4 + %b = alloca i32, align 4 + call void @llvm.dbg.declare(metadata %struct.X* %a, metadata !21, metadata !22), !dbg !23 + call void @llvm.dbg.declare(metadata i32* %b, metadata !24, metadata !22), !dbg !25 + %x = getelementptr inbounds %struct.X, %struct.X* %a, i32 0, i32 0, !dbg !26 + %0 = load i32, i32* %x, align 4, !dbg !26 + %1 = load i32, i32* %b, align 4, !dbg !26 + %add = add nsw i32 %0, %1, !dbg !26 + %2 = load i32, i32* @_ZZ3foovE1c, align 4, !dbg !26 + %add1 = add nsw i32 %add, %2, !dbg !26 + ret i32 %add1, !dbg !26 +} + +; Function Attrs: nounwind readnone +declare void @llvm.dbg.declare(metadata, metadata, metadata) #1 + +attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" } +attributes #1 = { nounwind readnone } + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!18, !19} +!llvm.ident = !{!20} + +!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.7.0 (trunk 237245)", isOptimized: false, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !3, subprograms: !14, globals: !15, imports: !2) +!1 = !DIFile(filename: "foo.cpp", directory: "/") +!2 = !{} +!3 = !{!4, !13} +!4 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", scope: !5, file: !1, line: 4, size: 32, align: 32, elements: !11) +!5 = distinct !DILexicalBlock(scope: !6, file: !1, line: 3) +!6 = distinct !DILexicalBlock(scope: !7, file: !1, line: 2) +!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3foov", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: false, variables: !2) +!8 = !DISubroutineType(types: !9) +!9 = !{!10} +!10 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) +!11 = !{!12} +!12 = !DIDerivedType(tag: DW_TAG_member, name: "x", scope: !4, file: !1, line: 5, baseType: !10, size: 32, align: 32) +!13 = !DIDerivedType(tag: DW_TAG_typedef, name: "Y", scope: !5, file: !1, line: 7, baseType: !10) +!14 = !{!7} +!15 = !{!16} +!16 = !DIGlobalVariable(name: "c", scope: !17, file: !1, line: 11, type: !10, isLocal: true, isDefinition: true, variable: i32* @_ZZ3foovE1c) +!17 = distinct !DILexicalBlock(scope: !5, file: !1, line: 8) +!18 = !{i32 2, !"Dwarf Version", i32 4} +!19 = !{i32 2, !"Debug Info Version", i32 3} +!20 = !{!"clang version 3.7.0 (trunk 237245)"} +!21 = !DILocalVariable(name: "a", scope: !17, file: !1, line: 9, type: !4) +!22 = !DIExpression() +!23 = !DILocation(line: 9, scope: !17) +!24 = !DILocalVariable(name: "b", scope: !17, file: !1, line: 10, type: !13) +!25 = !DILocation(line: 10, scope: !17) +!26 = !DILocation(line: 12, scope: !17) |
