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a5ae7c1c9f
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'. Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.
While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node. The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.
I updated almost all the IR with the following script:
git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
grep -v test/Bitcode |
xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'
Likely some variant of would work for out-of-tree testcases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246327 91177308-0d34-0410-b5e6-96231b3b80d8
57 lines
2.9 KiB
LLVM
57 lines
2.9 KiB
LLVM
; RUN: not llvm-as -disable-output < %s 2>&1 | FileCheck %s
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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-macosx10.9.0"
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; Function Attrs: nounwind ssp uwtable
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define i32 @foo(i64 %s.coerce0, i32 %s.coerce1) #0 {
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entry:
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call void @llvm.dbg.value(metadata i64 %s.coerce0, i64 0, metadata !20, metadata !24), !dbg !21
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call void @llvm.dbg.value(metadata i32 %s.coerce1, i64 0, metadata !22, metadata !27), !dbg !21
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ret i32 %s.coerce1, !dbg !23
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}
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; Function Attrs: nounwind readnone
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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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 ssp uwtable "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!17, !18}
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!llvm.ident = !{!19}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5 ", isOptimized: true, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
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!1 = !DIFile(filename: "pieces.c", directory: "")
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!2 = !{}
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!3 = !{!4}
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!4 = distinct !DISubprogram(name: "foo", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, scopeLine: 3, file: !1, scope: !5, type: !6, function: i32 (i64, i32)* @foo, variables: !15)
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!5 = !DIFile(filename: "pieces.c", directory: "")
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!6 = !DISubroutineType(types: !7)
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!7 = !{!8, !9}
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!8 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!9 = !DIDerivedType(tag: DW_TAG_typedef, name: "S", line: 1, file: !1, baseType: !10)
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!10 = !DICompositeType(tag: DW_TAG_structure_type, line: 1, size: 128, align: 64, file: !1, elements: !11)
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!11 = !{!12, !14}
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!12 = !DIDerivedType(tag: DW_TAG_member, name: "a", line: 1, size: 64, align: 64, file: !1, scope: !10, baseType: !13)
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!13 = !DIBasicType(tag: DW_TAG_base_type, name: "long int", size: 64, align: 64, encoding: DW_ATE_signed)
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!14 = !DIDerivedType(tag: DW_TAG_member, name: "b", line: 1, size: 32, align: 32, offset: 64, file: !1, scope: !10, baseType: !8)
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!15 = !{!16}
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!16 = !DILocalVariable(name: "s", line: 3, arg: 1, scope: !4, file: !5, type: !9)
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!17 = !{i32 2, !"Dwarf Version", i32 4}
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!18 = !{i32 1, !"Debug Info Version", i32 3}
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!19 = !{!"clang version 3.5 "}
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!20 = !DILocalVariable(name: "s", line: 3, arg: 1, scope: !4, file: !5, type: !9)
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!21 = !DILocation(line: 3, scope: !4)
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!22 = !DILocalVariable(name: "s", line: 3, arg: 1, scope: !4, file: !5, type: !9)
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!23 = !DILocation(line: 4, scope: !4)
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!24 = !DIExpression(DW_OP_deref, DW_OP_bit_piece, 0, 64)
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!25 = !{}
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; This expression has elements after DW_OP_bit_piece.
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; CHECK: invalid expression
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; CHECK-NEXT: !DIExpression({{[0-9]+}}, 64, 32, {{[0-9]+}})
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; CHECK-NOT: invalid expression
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!27 = !DIExpression(DW_OP_bit_piece, 64, 32, DW_OP_deref)
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