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
73 lines
3.9 KiB
LLVM
73 lines
3.9 KiB
LLVM
; RUN: opt -passes=declare-to-assign -S %s -o - | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators -passes=declare-to-assign -S %s -o - | FileCheck %s
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;; The variable doesn't fill the whole alloca which has a range of different
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;; sized stores to it, overlapping (or not) the variable in various ways. Check
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;; the fragment is truncated to represent the intersect between the store and
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;; the variable. If that intersect has exactly the same offset and size as the
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;; variable then a fragment should not be produced (the whole variable is
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;; covered by the store).
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;;
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;; Check directives written inline.
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%struct.two = type { i32, i32 }
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define dso_local noundef i32 @_Z3funv() #0 !dbg !10 {
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entry:
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%0 = alloca [4 x i16], align 4
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call void @llvm.dbg.declare(metadata ptr %0, metadata !15, metadata !DIExpression()), !dbg !16
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; CHECK: %0 = alloca [4 x i16], align 4, !DIAssignID ![[ID1:[0-9]+]]
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; CHECK-NEXT: #dbg_assign(i1 undef, ![[#]], !DIExpression(), ![[ID1]], ptr %0, !DIExpression(),
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%a = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 0
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%a.5 = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 1
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%b = getelementptr inbounds [4 x i16], ptr %0, i32 0, i32 2
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store i64 1, ptr %a, align 4
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; CHECK: store i64 1, ptr %a, align 4, !DIAssignID ![[ID2:[0-9]+]]
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; CHECK-NEXT: #dbg_assign(i64 1, ![[#]], !DIExpression(), ![[ID2]], ptr %a, !DIExpression(),
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store i64 2, ptr %b, align 4
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;; %b is outside the variable bounds, no debug intrinsic needed.
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store i16 3, ptr %a.5, align 4
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; CHECK: store i16 3, ptr %a.5, align 4, !DIAssignID ![[ID3:[0-9]+]]
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; CHECK-NEXT: #dbg_assign(i16 3, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 16, 16), ![[ID3]], ptr %a.5, !DIExpression(),
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store i32 4, ptr %a.5, align 4
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; CHECK: store i32 4, ptr %a.5, align 4, !DIAssignID ![[ID4:[0-9]+]]
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; CHECK-NEXT: #dbg_assign(i32 4, ![[#]], !DIExpression(DW_OP_LLVM_fragment, 16, 16), ![[ID4]], ptr %a.5, !DIExpression(),
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store i32 5, ptr %a, align 4
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; CHECK: store i32 5, ptr %a, align 4, !DIAssignID ![[ID5:[0-9]+]]
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; CHECK-NEXT: #dbg_assign(i32 5, ![[#]], !DIExpression(), ![[ID5]], ptr %a, !DIExpression(),
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ret i32 0
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare i64 @_Z3getv()
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!2, !3, !4, !5, !6, !7, !8}
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!llvm.ident = !{!9}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 17.0.0)", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{i32 7, !"Dwarf Version", i32 5}
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!3 = !{i32 2, !"Debug Info Version", i32 3}
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!4 = !{i32 1, !"wchar_size", i32 4}
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!5 = !{i32 8, !"PIC Level", i32 2}
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!6 = !{i32 7, !"PIE Level", i32 2}
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!7 = !{i32 7, !"uwtable", i32 2}
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!8 = !{i32 7, !"frame-pointer", i32 2}
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!9 = !{!"clang version 17.0.0)"}
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!10 = distinct !DISubprogram(name: "fun", linkageName: "_Z3funv", scope: !1, file: !1, line: 3, type: !11, scopeLine: 3, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !14)
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!11 = !DISubroutineType(types: !12)
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!12 = !{!13}
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!13 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!14 = !{}
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!15 = !DILocalVariable(name: "a", scope: !10, file: !1, line: 4, type: !13)
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!16 = !DILocation(line: 4, column: 9, scope: !10)
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!17 = !DILocalVariable(name: "b", scope: !10, file: !1, line: 4, type: !13)
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!18 = !DILocation(line: 4, column: 11, scope: !10)
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!19 = !DILocalVariable(scope: !10, file: !1, line: 4, type: !20)
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!20 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "two", file: !1, line: 1, size: 64, flags: DIFlagTypePassByValue, elements: !21, identifier: "_ZTS3two")
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!21 = !{!22, !23}
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!22 = !DIDerivedType(tag: DW_TAG_member, name: "a", scope: !20, file: !1, line: 1, baseType: !13, size: 32)
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!23 = !DIDerivedType(tag: DW_TAG_member, name: "b", scope: !20, file: !1, line: 1, baseType: !13, size: 32, offset: 32)
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!25 = !DILocation(line: 4, column: 16, scope: !10)
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