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
80 lines
4.3 KiB
LLVM
80 lines
4.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -passes=reassociate -S -o - | FileCheck %s
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; After reassociation m1 and m2 aren't calculated as m1=c*a and m2=c*b any longer.
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; So let's verify that the dbg.value nodes for m1 and m3 are invalidated.
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source_filename = "reassociate_dbgvalue_discard.c"
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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define dso_local i32 @test1(i32 %a, i32 %b, i32 %c, i32 %d) local_unnamed_addr #0 !dbg !7 {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: #dbg_value(i32 poison, [[META16:![0-9]+]], !DIExpression(), [[META20:![0-9]+]])
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; CHECK-NEXT: #dbg_value(i32 poison, [[META17:![0-9]+]], !DIExpression(), [[META21:![0-9]+]])
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; CHECK-NEXT: [[M1:%.*]] = mul i32 [[D:%.*]], [[C:%.*]], !dbg [[DBG22:![0-9]+]]
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; CHECK-NEXT: [[M3:%.*]] = mul i32 [[M1]], [[A:%.*]], !dbg [[DBG23:![0-9]+]]
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; CHECK-NEXT: #dbg_value(i32 [[M3]], [[META18:![0-9]+]], !DIExpression(), [[META24:![0-9]+]])
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; CHECK-NEXT: [[M2:%.*]] = mul i32 [[D]], [[C]], !dbg [[DBG25:![0-9]+]]
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; CHECK-NEXT: [[M4:%.*]] = mul i32 [[M2]], [[B:%.*]], !dbg [[DBG26:![0-9]+]]
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; CHECK-NEXT: #dbg_value(i32 [[M4]], [[META19:![0-9]+]], !DIExpression(), [[META27:![0-9]+]])
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; CHECK-NEXT: [[RES:%.*]] = xor i32 [[M3]], [[M4]]
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; CHECK-NEXT: ret i32 [[RES]], !dbg [[DBG28:![0-9]+]]
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;
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entry:
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%m1 = mul i32 %c, %a, !dbg !24
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call void @llvm.dbg.value(metadata i32 %m1, metadata !16, metadata !DIExpression()), !dbg !25
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%m2 = mul i32 %c, %b, !dbg !26
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call void @llvm.dbg.value(metadata i32 %m2, metadata !17, metadata !DIExpression()), !dbg !27
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%m3 = mul i32 %m1, %d, !dbg !28
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call void @llvm.dbg.value(metadata i32 %m3, metadata !18, metadata !DIExpression()), !dbg !29
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%m4 = mul i32 %m2, %d, !dbg !30
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call void @llvm.dbg.value(metadata i32 %m4, metadata !19, metadata !DIExpression()), !dbg !31
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%res = xor i32 %m3, %m4
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ret i32 %res, !dbg !32
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind readnone uwtable }
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attributes #1 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 7.0.0 (trunk 330596) (llvm/trunk 330594)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "reassociate_dbgvalue_discard.c", directory: "")
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!2 = !{}
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!3 = !{i32 2, !"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 7.0.0 (trunk 330596) (llvm/trunk 330594)"}
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!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 3, type: !8, isLocal: false, isDefinition: true, scopeLine: 3, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!10, !10, !10, !10, !10}
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !{!12, !13, !14, !15, !16, !17, !18, !19}
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!12 = !DILocalVariable(name: "a", arg: 1, scope: !7, file: !1, line: 3, type: !10)
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!13 = !DILocalVariable(name: "b", arg: 2, scope: !7, file: !1, line: 3, type: !10)
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!14 = !DILocalVariable(name: "c", arg: 3, scope: !7, file: !1, line: 3, type: !10)
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!15 = !DILocalVariable(name: "d", arg: 4, scope: !7, file: !1, line: 3, type: !10)
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!16 = !DILocalVariable(name: "t1", scope: !7, file: !1, line: 4, type: !10)
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!17 = !DILocalVariable(name: "t2", scope: !7, file: !1, line: 5, type: !10)
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!18 = !DILocalVariable(name: "t3", scope: !7, file: !1, line: 6, type: !10)
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!19 = !DILocalVariable(name: "t4", scope: !7, file: !1, line: 7, type: !10)
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!20 = !DILocation(line: 3, column: 15, scope: !7)
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!21 = !DILocation(line: 3, column: 22, scope: !7)
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!22 = !DILocation(line: 3, column: 29, scope: !7)
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!23 = !DILocation(line: 3, column: 36, scope: !7)
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!24 = !DILocation(line: 4, column: 14, scope: !7)
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!25 = !DILocation(line: 4, column: 7, scope: !7)
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!26 = !DILocation(line: 5, column: 14, scope: !7)
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!27 = !DILocation(line: 5, column: 7, scope: !7)
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!28 = !DILocation(line: 6, column: 15, scope: !7)
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!29 = !DILocation(line: 6, column: 7, scope: !7)
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!30 = !DILocation(line: 7, column: 15, scope: !7)
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!31 = !DILocation(line: 7, column: 7, scope: !7)
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!32 = !DILocation(line: 8, column: 3, scope: !7)
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