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
65 lines
2.9 KiB
LLVM
65 lines
2.9 KiB
LLVM
; RUN: opt -passes=instcombine -S %s | FileCheck %s
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define dso_local void @_Z1fv() {
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%1 = alloca i32, align 4
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call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1)
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call void @llvm.dbg.declare(metadata ptr %1, metadata !16, metadata !DIExpression()), !dbg !19
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; CHECK: %[[A:.*]] = alloca i32, align 4
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; CHECK: #dbg_value(ptr %[[A]], {{.*}}, !DIExpression(DW_OP_deref)
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; CHECK: call void @_Z1gPv
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call void @_Z1gPv(ptr nonnull %1)
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; CHECK-NOT: #dbg_value
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; CHECK: call void @_Z1gPv
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call void @_Z1gPv(ptr nonnull %1)
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call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1)
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ret void, !dbg !21
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}
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define dso_local void @_Z2fv() {
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%1 = alloca i32, align 4
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call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1)
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call void @llvm.dbg.declare(metadata ptr %1, metadata !16, metadata !DIExpression()), !dbg !19
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; CHECK: %[[A:.*]] = alloca i32, align 4
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; CHECK: #dbg_value(ptr %[[A]], {{.*}}, !DIExpression(DW_OP_deref)
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; CHECK: call void @_Z1gPv
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call void @_Z1gPv(ptr nonnull %1)
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br label %block2
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block2:
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; CHECK: #dbg_value(ptr %[[A]], {{.*}}, !DIExpression(DW_OP_deref)
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; CHECK: call void @_Z1gPv
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call void @_Z1gPv(ptr nonnull %1)
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call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1)
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ret void, !dbg !21
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}
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declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture)
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declare void @llvm.dbg.declare(metadata, metadata, metadata)
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declare dso_local void @_Z1gPv(ptr)
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declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture)
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!8, !9, !10}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 10.0.0 (git@github.com:llvm/llvm-project.git cab64b5708f614c71d275ec9d134e68b8c3baedd)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !3, nameTableKind: None)
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!1 = !DIFile(filename: "dbg.cc", directory: "/tmp")
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!2 = !{}
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!3 = !{!4, !5}
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!4 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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!5 = !DISubprogram(name: "g", linkageName: "_Z1gPv", scope: !1, file: !1, line: 1, type: !6, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!6 = !DISubroutineType(types: !7)
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!7 = !{null, !4}
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!8 = !{i32 7, !"Dwarf Version", i32 4}
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!9 = !{i32 2, !"Debug Info Version", i32 3}
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!10 = !{i32 1, !"wchar_size", i32 4}
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!12 = distinct !DISubprogram(name: "f", linkageName: "_Z1fv", scope: !1, file: !1, line: 2, type: !13, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !15)
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!13 = !DISubroutineType(types: !14)
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!14 = !{null}
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!15 = !{!16}
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!16 = !DILocalVariable(name: "x", scope: !12, file: !1, line: 3, type: !17)
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!17 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!18 = !DILocation(line: 3, column: 3, scope: !12)
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!19 = !DILocation(line: 3, column: 7, scope: !12)
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!20 = !DILocation(line: 4, column: 3, scope: !12)
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!21 = !DILocation(line: 5, column: 1, scope: !12)
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