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
103 lines
5.7 KiB
LLVM
103 lines
5.7 KiB
LLVM
; RUN: opt %s -S -passes=sroa -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators %s -S -passes=sroa -o - | FileCheck %s
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;; Ensure that only the value-expression gets fragment info; that the
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;; address-expression remains untouched.
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;; $ cat test.cpp
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;; class a {
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;; float b[4];
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;; };
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;; class c {
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;; a m_fn1() const;
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;; void d() const;
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;; };
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;; void c::d() const { a e = m_fn1(); }
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;;
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;; Generated by grabbing IR before sroa in:
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;; $ clang++ -O2 -g -c test.cpp -Xclang -fexperimental-assignment-tracking
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; CHECK: %call = call
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; CHECK-NEXT: %0 = extractvalue { <2 x float>, <2 x float> } %call, 0
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; CHECK-NEXT: #dbg_value(<2 x float> %0, ![[var:[0-9]+]], !DIExpression(DW_OP_LLVM_fragment, 0, 64),
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; CHECK-NEXT: %1 = extractvalue { <2 x float>, <2 x float> } %call, 1
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; CHECK-NEXT: #dbg_value(<2 x float> %1, ![[var]], !DIExpression(DW_OP_LLVM_fragment, 64, 64),
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%class.c = type { i8 }
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%class.a = type { [4 x float] }
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; Function Attrs: uwtable
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define dso_local void @_ZNK1c1dEv(ptr %this) #0 align 2 !dbg !7 {
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entry:
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%this.addr = alloca ptr, align 8, !DIAssignID !29
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call void @llvm.dbg.assign(metadata i1 undef, metadata !26, metadata !DIExpression(), metadata !29, metadata ptr %this.addr, metadata !DIExpression()), !dbg !30
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%e = alloca %class.a, align 4, !DIAssignID !31
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call void @llvm.dbg.assign(metadata i1 undef, metadata !28, metadata !DIExpression(), metadata !31, metadata ptr %e, metadata !DIExpression()), !dbg !30
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store ptr %this, ptr %this.addr, align 8, !DIAssignID !36
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call void @llvm.dbg.assign(metadata ptr %this, metadata !26, metadata !DIExpression(), metadata !36, metadata ptr %this.addr, metadata !DIExpression()), !dbg !30
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%this1 = load ptr, ptr %this.addr, align 8
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%0 = bitcast ptr %e to ptr, !dbg !37
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%call = call { <2 x float>, <2 x float> } @_ZNK1c5m_fn1Ev(ptr %this1), !dbg !38
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%coerce.dive = getelementptr inbounds %class.a, ptr %e, i32 0, i32 0, !dbg !38
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%1 = bitcast ptr %coerce.dive to ptr, !dbg !38
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%2 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %1, i32 0, i32 0, !dbg !38
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%3 = extractvalue { <2 x float>, <2 x float> } %call, 0, !dbg !38
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store <2 x float> %3, ptr %2, align 4, !dbg !38, !DIAssignID !39
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call void @llvm.dbg.assign(metadata <2 x float> %3, metadata !28, metadata !DIExpression(DW_OP_LLVM_fragment, 0, 64), metadata !39, metadata ptr %2, metadata !DIExpression()), !dbg !30
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%4 = getelementptr inbounds { <2 x float>, <2 x float> }, ptr %1, i32 0, i32 1, !dbg !38
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%5 = extractvalue { <2 x float>, <2 x float> } %call, 1, !dbg !38
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store <2 x float> %5, ptr %4, align 4, !dbg !38, !DIAssignID !40
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call void @llvm.dbg.assign(metadata <2 x float> %5, metadata !28, metadata !DIExpression(DW_OP_LLVM_fragment, 64, 64), metadata !40, metadata ptr %4, metadata !DIExpression()), !dbg !30
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%6 = bitcast ptr %e to ptr, !dbg !41
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ret void, !dbg !41
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare dso_local { <2 x float>, <2 x float> } @_ZNK1c5m_fn1Ev(ptr) #3
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declare void @llvm.dbg.assign(metadata, metadata, metadata, metadata, metadata, metadata) #1
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5, !1000}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 12.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 12.0.0"}
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!7 = distinct !DISubprogram(name: "d", linkageName: "_ZNK1c1dEv", scope: !8, file: !1, line: 8, type: !23, scopeLine: 8, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, declaration: !22, retainedNodes: !25)
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!8 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "c", file: !1, line: 4, size: 8, flags: DIFlagTypePassByValue, elements: !9, identifier: "_ZTS1c")
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!9 = !{!10, !22}
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!10 = !DISubprogram(name: "m_fn1", linkageName: "_ZNK1c5m_fn1Ev", scope: !8, file: !1, line: 5, type: !11, scopeLine: 5, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!13, !20}
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!13 = distinct !DICompositeType(tag: DW_TAG_class_type, name: "a", file: !1, line: 1, size: 128, flags: DIFlagTypePassByValue, elements: !14, identifier: "_ZTS1a")
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!14 = !{!15}
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!15 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !13, file: !1, line: 2, baseType: !16, size: 128)
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!16 = !DICompositeType(tag: DW_TAG_array_type, baseType: !17, size: 128, elements: !18)
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!17 = !DIBasicType(name: "float", size: 32, encoding: DW_ATE_float)
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!18 = !{!19}
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!19 = !DISubrange(count: 4)
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!20 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64, flags: DIFlagArtificial | DIFlagObjectPointer)
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!21 = !DIDerivedType(tag: DW_TAG_const_type, baseType: !8)
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!22 = !DISubprogram(name: "d", linkageName: "_ZNK1c1dEv", scope: !8, file: !1, line: 6, type: !23, scopeLine: 6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized)
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!23 = !DISubroutineType(types: !24)
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!24 = !{null, !20}
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!25 = !{!26, !28}
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!26 = !DILocalVariable(name: "this", arg: 1, scope: !7, type: !27, flags: DIFlagArtificial | DIFlagObjectPointer)
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!27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !21, size: 64)
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!28 = !DILocalVariable(name: "e", scope: !7, file: !1, line: 8, type: !13)
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!29 = distinct !DIAssignID()
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!30 = !DILocation(line: 0, scope: !7)
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!31 = distinct !DIAssignID()
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!36 = distinct !DIAssignID()
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!37 = !DILocation(line: 8, column: 21, scope: !7)
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!38 = !DILocation(line: 8, column: 27, scope: !7)
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!39 = distinct !DIAssignID()
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!40 = distinct !DIAssignID()
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!41 = !DILocation(line: 8, column: 36, scope: !7)
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!1000 = !{i32 7, !"debug-info-assignment-tracking", i1 true}
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