094572701d
This patch makes the final major change of the RemoveDIs project, changing the default IR output from debug intrinsics to debug records. This is expected to break a large number of tests: every single one that tests for uses or declarations of debug intrinsics and does not explicitly disable writing records. If this patch has broken your downstream tests (or upstream tests on a configuration I wasn't able to run): 1. If you need to immediately unblock a build, pass `--write-experimental-debuginfo=false` to LLVM's option processing for all failing tests (remember to use `-mllvm` for clang/flang to forward arguments to LLVM). 2. For most test failures, the changes are trivial and mechanical, enough that they can be done by script; see the migration guide for a guide on how to do this: https://llvm.org/docs/RemoveDIsDebugInfo.html#test-updates 3. If any tests fail for reasons other than FileCheck check lines that need updating, such as assertion failures, that is most likely a real bug with this patch and should be reported as such. For more information, see the recent PSA: https://discourse.llvm.org/t/psa-ir-output-changing-from-debug-intrinsics-to-debug-records/79578
75 lines
3.9 KiB
LLVM
75 lines
3.9 KiB
LLVM
; RUN: opt -S %s -passes=inline -o - \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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; RUN: opt --try-experimental-debuginfo-iterators -S %s -passes=inline -o - \
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; RUN: | FileCheck %s --implicit-check-not="call void @llvm.dbg"
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;; The dbg.assign linked to the large alloca describes a variable sitting at
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;; offset 0, size 64. Check:
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;; A) an inlined store to the alloca outside of the bits 0-64 is not attributed
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;; to the variable.
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;; B) a fragment expression is not created if the inlined store is the size of
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;; the variable.
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;; C) a fragment expression is created if the inlined store is not the size of
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;; the variable.
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;; Test A:
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; CHECK: %0 = alloca %"struct.llvm::detail::DenseMapPair", i32 0, align 8, !DIAssignID ![[ID1:[0-9]+]]
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; CHECK: #dbg_assign(i1 undef, ![[#]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
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;; Test B:
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;; CHECK: store i64 1, ptr %0, align 4, !DIAssignID ![[ID2:[0-9]+]]
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;; CHECK: #dbg_assign(i64 1, ![[#]], !DIExpression(), ![[ID2]], ptr %0, !DIExpression(),
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;; Test C:
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;; CHECK: store i32 2, ptr %0, align 4, !DIAssignID ![[ID3:[0-9]+]]
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;; CHECK: #dbg_assign(i32 2, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 0, 32), ![[ID3]], ptr %0, !DIExpression(),
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%"struct.llvm::detail::DenseMapPair" = type { %"struct.std::pair" }
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%"struct.std::pair" = type { ptr, %"class.llvm::SmallVector" }
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%"class.llvm::SmallVector" = type { %"class.llvm::SmallVectorImpl", %"struct.llvm::SmallVectorStorage" }
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%"class.llvm::SmallVectorImpl" = type { %"class.llvm::SmallVectorTemplateBase" }
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%"class.llvm::SmallVectorTemplateBase" = type { %"class.llvm::SmallVectorTemplateCommon" }
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%"class.llvm::SmallVectorTemplateCommon" = type { %"class.llvm::SmallVectorBase" }
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%"class.llvm::SmallVectorBase" = type { ptr, i64, i64 }
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%"struct.llvm::SmallVectorStorage" = type { [40 x i8] }
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define void @_Z6verifyv() {
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entry:
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%0 = alloca %"struct.llvm::detail::DenseMapPair", i32 0, align 8, !DIAssignID !5
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call void @llvm.dbg.assign(metadata i1 undef, metadata !6, metadata !DIExpression(), metadata !5, metadata ptr %0, metadata !DIExpression()), !dbg !14
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call void @_ZN4llvm6detail12DenseMapPairIP4SCEVNS_11SmallVectorI6FoldIDLj40EEEEC2ERKS7_(ptr %0)
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ret void
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}
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define linkonce_odr void @_ZN4llvm6detail12DenseMapPairIP4SCEVNS_11SmallVectorI6FoldIDLj40EEEEC2ERKS7_(ptr %this) {
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entry:
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%second.i = getelementptr %"struct.std::pair", ptr %this, i64 0, i32 1
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store i32 0, ptr %second.i, align 4
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%test = getelementptr %"struct.std::pair", ptr %this, i64 0, i32 0
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store i64 1, ptr %test
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store i32 2, ptr %test
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ret void
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}
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "reduce.cpp", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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!5 = distinct !DIAssignID()
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!6 = !DILocalVariable(name: "a", scope: !7, file: !1, line: 10, type: !12)
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!7 = distinct !DILexicalBlock(scope: !8, file: !1, line: 10, column: 3)
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!8 = distinct !DILexicalBlock(scope: !9, file: !1, line: 10, column: 3)
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!9 = distinct !DISubprogram(name: "verify", linkageName: "_Z6verifyv", scope: !1, file: !1, line: 9, type: !10, scopeLine: 9, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
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!10 = !DISubroutineType(types: !11)
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!11 = !{null}
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
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!13 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "SCEV", file: !1, line: 3, flags: DIFlagFwdDecl | DIFlagNonTrivial, identifier: "_ZTS4SCEV")
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!14 = !DILocation(line: 0, scope: !7)
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