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69e607f200
This change simplifies code that has to deal with DIGlobalVariableExpression and mirrors how we treat DIExpressions in debug info intrinsics. Before this change there were two ways of representing empty expressions on globals, a nullptr and an empty !DIExpression(). If someone needs to upgrade out-of-tree testcases: perl -pi -e 's/(!DIGlobalVariableExpression\(var: ![0-9]*)\)/\1, expr: !DIExpression())/g' <MYTEST.ll> will catch 95%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312144 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
2.5 KiB
LLVM
57 lines
2.5 KiB
LLVM
; RUN: llc -filetype=asm -asm-verbose=0 < %s | FileCheck %s
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; char ch;
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; int b;
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;
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; void proc (void)
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; {
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; ch = 'A';
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; b = 0; // <== this should have correct location
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; }
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; CHECK: .loc 1 7 7
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; CHECK: mov r{{[0-9]}}, #0
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source_filename = "test/DebugInfo/ARM/multiple-constant-uses-drops-dbgloc.ll"
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "armv7--linux-gnueabihf"
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@ch = common global i8 0, align 1, !dbg !0
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@b = common global i32 0, align 4, !dbg !5
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; Function Attrs: nounwind
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define void @proc() #0 !dbg !13 {
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entry:
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store i8 65, i8* @ch, align 1, !dbg !17
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store i32 0, i32* @b, align 4, !dbg !18
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ret void, !dbg !19
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}
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="cortex-a8" "target-features"="+neon,+vfp3" "unsafe-fp-math"="false" "use-soft-float"="false" }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!8, !9, !10, !11}
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!llvm.ident = !{!12}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = !DIGlobalVariable(name: "ch", scope: !2, file: !3, line: 1, type: !4, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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!3 = !DIFile(filename: "test.c", directory: "/home/user/clang/build")
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!4 = !DIBasicType(name: "char", size: 8, align: 8, encoding: DW_ATE_unsigned_char)
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!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())
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!6 = !DIGlobalVariable(name: "b", scope: !2, file: !3, line: 2, type: !7, isLocal: false, isDefinition: true)
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{i32 2, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!11 = !{i32 1, !"min_enum_size", i32 4}
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!12 = !{!"clang version 3.7.0 (http://llvm.org/git/clang.git 9b0abb9df531ef7928c8182120e1869affca17d5) (http://llvm.org/git/llvm.git b1e759524dd94f7ce1e24935daed8383927e96c1)"}
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!13 = distinct !DISubprogram(name: "proc", scope: !3, file: !3, line: 4, type: !14, isLocal: false, isDefinition: true, scopeLine: 5, flags: DIFlagPrototyped, isOptimized: false, unit: !2, variables: !16)
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!14 = !DISubroutineType(types: !15)
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!15 = !{null}
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!16 = !{}
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!17 = !DILocation(line: 6, column: 8, scope: !13)
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!18 = !DILocation(line: 7, column: 7, scope: !13)
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!19 = !DILocation(line: 8, column: 1, scope: !13)
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