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| ; RUN: llc -mtriple=x86_64-linux-gnu %s -filetype=obj -o %t
| ; RUN: llvm-dwarfdump %t | FileCheck %s
|
| ; Reconstruct this via clang and -O2.
| ; static void foo() {
| ; struct X { int a; int b; } xyz;
| ; }
|
| ; int bar() {
| ; foo();
| ; return 1;
| ; }
|
| ; Check that we don't have the structure type for X since its scope has
| ; been optimized away.
| ; CHECK-NOT: DW_TAG_structure_type
| ; CHECK: DW_TAG_subprogram
| ; CHECK: DW_AT_name {{.*}}"bar"
| ; CHECK-NOT: DW_TAG_structure_type
|
| ; Function Attrs: nounwind readnone uwtable
| define i32 @bar() #0 !dbg !4 {
| entry:
| ret i32 1, !dbg !21
| }
|
| 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" }
|
| !llvm.dbg.cu = !{!0}
| !llvm.module.flags = !{!18, !19}
| !llvm.ident = !{!20}
|
| !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)
| !1 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo")
| !2 = !{}
| !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)
| !5 = !DIFile(filename: "debug-dead-local-var.c", directory: "/usr/local/google/home/echristo")
| !6 = !DISubroutineType(types: !7)
| !7 = !{!8}
| !8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
| !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)
| !10 = !DISubroutineType(types: !11)
| !11 = !{null}
| !12 = !{!13}
| !13 = !DILocalVariable(name: "xyz", line: 8, scope: !9, file: !5, type: !14)
| !14 = !DICompositeType(tag: DW_TAG_structure_type, name: "X", line: 8, size: 64, align: 32, file: !1, scope: !9, elements: !15)
| !15 = !{!16, !17}
| !16 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 8, size: 32, align: 32, file: !1, scope: !14, baseType: !8)
| !17 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 8, size: 32, align: 32, offset: 32, file: !1, scope: !14, baseType: !8)
| !18 = !{i32 2, !"Dwarf Version", i32 4}
| !19 = !{i32 2, !"Debug Info Version", i32 3}
| !20 = !{!"clang version 3.5.0 (trunk 209255) (llvm/trunk 209253)"}
| !21 = !DILocation(line: 13, scope: !4)
|
|