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08a36a35c8
Remove the fake `DW_TAG_auto_variable` and `DW_TAG_arg_variable` tags,
using `DW_TAG_variable` in their place Stop exposing the `tag:` field at
all in the assembly format for `DILocalVariable`.
Most of the testcase updates were generated by the following sed script:
find test/ -name "*.ll" -o -name "*.mir" |
xargs grep -l 'DILocalVariable' |
xargs sed -i '' \
-e 's/tag: DW_TAG_arg_variable, //' \
-e 's/tag: DW_TAG_auto_variable, //'
There were only a handful of tests in `test/Assembly` that I needed to
update by hand.
(Note: a follow-up could change `DILocalVariable::DILocalVariable()` to
set the tag to `DW_TAG_formal_parameter` instead of `DW_TAG_variable`
(as appropriate), instead of having that logic magically in the backend
in `DbgVariable`. I've added a FIXME to that effect.)
llvm-svn: 243774
57 lines
2.8 KiB
LLVM
57 lines
2.8 KiB
LLVM
; RUN: llc -debug -mtriple x86_64-apple-darwin < %s -o /dev/null 2>&1 | FileCheck %s
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; REQUIRES: asserts
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; Check that llc -debug actually prints variables and locations, rather than
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; crashing.
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; CHECK: DBG_VALUE
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; Generated using `clang -g -O2 -S -emit-llvm -g` on the following source:
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;
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; static int foo(int x) { return x; }
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; int bar(int x) { return foo(x); }
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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-macosx10.10.0"
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; Function Attrs: nounwind readnone ssp uwtable
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define i32 @bar(i32 %x) #0 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !9, metadata !17), !dbg !18
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tail call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !19, metadata !17), !dbg !21
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ret i32 %x, !dbg !22
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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attributes #0 = { nounwind readnone ssp uwtable "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"="core2" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!13, !14, !15}
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!llvm.ident = !{!16}
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!0 = !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 3.7.0 (trunk 233919) (llvm/trunk 233920)", isOptimized: true, runtimeVersion: 0, emissionKind: 1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
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!1 = !DIFile(filename: "t.c", directory: "/Users/dexonsmith/data/llvm/debug-info/test/DebugInfo/X86")
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!2 = !{}
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!3 = !{!4, !10}
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!4 = !DISubprogram(name: "bar", scope: !1, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, function: i32 (i32)* @bar, variables: !8)
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7, !7}
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!7 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "x", arg: 1, scope: !4, file: !1, line: 2, type: !7)
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!10 = !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !5, isLocal: true, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, variables: !11)
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!11 = !{!12}
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!12 = !DILocalVariable(name: "x", arg: 1, scope: !10, file: !1, line: 1, type: !7)
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!13 = !{i32 2, !"Dwarf Version", i32 2}
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!14 = !{i32 2, !"Debug Info Version", i32 3}
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!15 = !{i32 1, !"PIC Level", i32 2}
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!16 = !{!"clang version 3.7.0 (trunk 233919) (llvm/trunk 233920)"}
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!17 = !DIExpression()
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!18 = !DILocation(line: 2, column: 13, scope: !4)
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!19 = !DILocalVariable(name: "x", arg: 1, scope: !10, file: !1, line: 1, type: !7)
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!20 = distinct !DILocation(line: 2, column: 25, scope: !4)
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!21 = !DILocation(line: 1, column: 20, scope: !10, inlinedAt: !20)
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!22 = !DILocation(line: 2, column: 18, scope: !4)
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