632f44e5ed
This patch trivially updates various opt passes to handle DPVAssigns. In all cases, this means some combination of generifying existing code to handle DPValues and DbgAssignIntrinsics, iterating over DPValues where previously we did not, or duplicating code for DbgAssignIntrinsics to the equivalent DPValue function (in inlining and salvageDebugInfo).
75 lines
4.1 KiB
LLVM
75 lines
4.1 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: call void @llvm.dbg.assign(metadata i1 undef, metadata ![[#]], metadata !DIExpression(), metadata ![[ID1]], metadata ptr %0, metadata !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: call void @llvm.dbg.assign(metadata i64 1, metadata ![[#]], metadata !DIExpression(), metadata ![[ID2]], metadata ptr %0, metadata !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: call void @llvm.dbg.assign(metadata i32 2, metadata ![[#]], metadata !DIExpression(DW_OP_LLVM_fragment, 0, 32), metadata ![[ID3]], metadata ptr %0, metadata !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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