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1; RUN: llc -mtriple=x86_64-linux-gnu %s -filetype=obj -o %t2; RUN: llvm-dwarfdump %t | FileCheck %s3 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 don't have the structure type for X since its scope has15; been optimized away.16; CHECK-NOT: DW_TAG_structure_type17; CHECK: DW_TAG_subprogram18; CHECK: DW_AT_name {{.*}}"bar"19; CHECK-NOT: DW_TAG_structure_type20 21; Function Attrs: nounwind readnone uwtable22define i32 @bar() #0 !dbg !4 {23entry:24 ret i32 1, !dbg !2125}26 27attributes #0 = { nounwind readnone uwtable "less-precise-fpmad"="false" "frame-pointer"="none" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "use-soft-float"="false" }28 29!llvm.dbg.cu = !{!0}30!llvm.module.flags = !{!18, !19}31!llvm.ident = !{!20}32 33!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 (trunk 209255) (llvm/trunk 209253)", isOptimized: true, emissionKind: FullDebug, file: !1, enums: !2, retainedTypes: !2, globals: !2, imports: !2)34!1 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo")35!2 = !{}36!4 = distinct !DISubprogram(name: "bar", line: 11, isLocal: false, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 11, file: !1, scope: !5, type: !6, retainedNodes: !2)37!5 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo")38!6 = !DISubroutineType(types: !7)39!7 = !{!8}40!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)41!9 = distinct !DISubprogram(name: "foo", line: 6, isLocal: true, isDefinition: true, virtualIndex: 6, isOptimized: true, unit: !0, scopeLine: 6, file: !1, scope: !5, type: !10, retainedNodes: !12)42!10 = !DISubroutineType(types: !11)43!11 = !{null}44!12 = !{!13}45!13 = !DILocalVariable(name: "xyz", line: 8, scope: !9, file: !5, type: !14)46!14 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", line: 8, size: 64, align: 32, file: !1, scope: !9, elements: !15)47!15 = !{!16, !17}48!16 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 8, size: 32, align: 32, file: !1, scope: !14, baseType: !8)49!17 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 8, size: 32, align: 32, offset: 32, file: !1, scope: !14, baseType: !8)50!18 = !{i32 2, !"Dwarf Version", i32 4}51!19 = !{i32 2, !"Debug Info Version", i32 3}52!20 = !{!"clang version 3.5.0 (trunk 209255) (llvm/trunk 209253)"}53!21 = !DILocation(line: 13, scope: !4)54