1 ; RUN: llc -mtriple=x86_64-linux-gnu %s -filetype=obj -o %t 2 ; RUN: llvm-dwarfdump %t | FileCheck %s 3 4 ; Reconstruct this via clang and -O2. 5 ; static void foo() { 6 ; struct X { int a; int b; } xyz; 7 ; } 8 9 ; int bar() { 10 ; foo(); 11 ; return 1; 12 ; } 13 14 ; Check that we still have the structure type for X even though we're not 15 ; going to emit a low/high_pc for foo. 16 ; CHECK: DW_TAG_structure_type 17 18 ; Function Attrs: nounwind readnone uwtable 19 define i32 @bar() #0 !dbg !4 { 20 entry: 21 ret i32 1, !dbg !21 22 } 23 24 attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } 25 26 !llvm.dbg.cu = !{!0} 27 !llvm.module.flags = !{!18, !19} 28 !llvm.ident = !{!20} 29 30 !0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 209255) (llvm/trunk 209253)", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2) 31 !1 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo") 32 !2 = !{} 33 !3 = !{!4, !9} 34 !4 = distinct !DISubprogram(name: "bar", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 11, file: !1, scope: !5, type: !6, variables: !2) 35 !5 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo") 36 !6 = !DISubroutineType(types: !7) 37 !7 = !{!8} 38 !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 39 !9 = distinct !DISubprogram(name: "foo", line: 6, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, scopeLine: 6, file: !1, scope: !5, type: !10, variables: !12) 40 !10 = !DISubroutineType(types: !11) 41 !11 = !{null} 42 !12 = !{!13} 43 !13 = !DILocalVariable(name: "xyz", line: 8, scope: !9, file: !5, type: !14) 44 !14 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", line: 8, size: 64, align: 32, file: !1, scope: !9, elements: !15) 45 !15 = !{!16, !17} 46 !16 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 8, size: 32, align: 32, file: !1, scope: !14, baseType: !8) 47 !17 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 8, size: 32, align: 32, offset: 32, file: !1, scope: !14, baseType: !8) 48 !18 = !{i32 2, !"Dwarf Version", i32 4} 49 !19 = !{i32 2, !"Debug Info Version", i32 3} 50 !20 = !{!"clang version 3.5.0 (trunk 209255) (llvm/trunk 209253)"} 51 !21 = !DILocation(line: 13, scope: !4) 52
