84 lines
3.2 KiB
LLVM
84 lines
3.2 KiB
LLVM
; RUN: %llc_dwarf -filetype=obj < %s | llvm-dwarfdump -v - | FileCheck %s
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; Generated at -O2 from:
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; bool c();
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; void f();
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; bool start() {
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; bool result = c();
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; if (!c()) {
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; result = false;
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; goto exit;
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; }
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; f();
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; result = true;
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; exit:
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; return result;
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; }
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;
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; The constant should NOT be available for the entire function.
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; CHECK-NOT: DW_AT_const_value
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; CHECK: .debug_loc contents:
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; CHECK-NEXT: 0x00000000:
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; CHECK-NEXT: {{.*}}: DW_OP_constu 0x1, DW_OP_stack_value
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source_filename = "test.ii"
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.12.0"
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; Function Attrs: noimplicitfloat noredzone nounwind optsize
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define zeroext i1 @_Z5startv() local_unnamed_addr #0 !dbg !7 {
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entry:
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%call = tail call zeroext i1 @_Z1cv() #3, !dbg !13
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%call1 = tail call zeroext i1 @_Z1cv() #3, !dbg !14
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br i1 %call1, label %if.end, label %exit, !dbg !16
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if.end: ; preds = %entry
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tail call void @_Z1fv() #3, !dbg !17
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tail call void @llvm.dbg.value(metadata i8 1, metadata !12, metadata !18), !dbg !19
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br label %exit, !dbg !20
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exit: ; preds = %entry, %if.end
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%result.0 = phi i1 [ true, %if.end ], [ false, %entry ]
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ret i1 %result.0, !dbg !21
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}
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; Function Attrs: noimplicitfloat noredzone optsize
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declare zeroext i1 @_Z1cv() local_unnamed_addr #1
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; Function Attrs: noimplicitfloat noredzone optsize
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declare void @_Z1fv() local_unnamed_addr #1
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #2
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attributes #0 = { noimplicitfloat noredzone nounwind optsize }
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attributes #1 = { noimplicitfloat noredzone optsize }
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attributes #2 = { nounwind readnone speculatable }
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attributes #3 = { nobuiltin noimplicitfloat noredzone nounwind optsize }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "test.ii", directory: "/")
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!2 = !{}
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!3 = !{i32 2, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 5.0.0 (trunk 303873) (llvm/trunk 303897)"}
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!7 = distinct !DISubprogram(name: "start", linkageName: "_Z5startv", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10}
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!10 = !DIBasicType(name: "bool", size: 8, encoding: DW_ATE_boolean)
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!11 = !{!12}
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!12 = !DILocalVariable(name: "result", scope: !7, file: !1, line: 4, type: !10)
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!13 = !DILocation(line: 4, column: 17, scope: !7)
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!14 = !DILocation(line: 5, column: 8, scope: !15)
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!15 = distinct !DILexicalBlock(scope: !7, file: !1, line: 5, column: 7)
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!16 = !DILocation(line: 5, column: 7, scope: !7)
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!17 = !DILocation(line: 9, column: 3, scope: !7)
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!18 = !DIExpression()
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!19 = !DILocation(line: 4, column: 8, scope: !7)
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!20 = !DILocation(line: 10, column: 3, scope: !7)
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!21 = !DILocation(line: 12, column: 3, scope: !7)
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