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
81 lines
4.1 KiB
LLVM
81 lines
4.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt < %s -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 | FileCheck %s
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; RUN: opt < %s -S -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 --try-experimental-debuginfo-iterators | FileCheck %s
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; This test case was generated from speculate-dbgvalue.c:
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;
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; int test1(int getdirt, int dirt) {
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; int result = 100;
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; if (getdirt != 0)
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; result = dirt;
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; return result;
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; }
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;
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; using
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; clang speculate-dbgvalue.c -S -emit-llvm -g -O3 -mllvm -disable-llvm-optzns -o - | opt -passes=mem2reg -S
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; Function Attrs: nounwind uwtable
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define i32 @test1(i32 %getdirt, i32 %dirt) #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 [[GETDIRT:%.*]], [[META12:![0-9]+]], !DIExpression(), [[META15:![0-9]+]])
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; CHECK-NEXT: #dbg_value(i32 [[DIRT:%.*]], [[META13:![0-9]+]], !DIExpression(), [[META16:![0-9]+]])
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; CHECK-NEXT: #dbg_value(i32 100, [[META14:![0-9]+]], !DIExpression(), [[META17:![0-9]+]])
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; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[GETDIRT]], 0, !dbg [[DBG18:![0-9]+]]
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; CHECK-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[CMP]], i32 [[DIRT]], i32 100, !dbg [[DBG20:![0-9]+]]
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; CHECK-NEXT: #dbg_value(i32 [[SPEC_SELECT]], [[META14]], !DIExpression(), [[META17]])
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; CHECK-NEXT: ret i32 [[SPEC_SELECT]], !dbg [[DBG21:![0-9]+]]
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;
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; *** We used to get an incorrect "call void @llvm.dbg.value(metadata i32 [[DIRT]], metadata !14, metadata !DIExpression()), !dbg !17" here, before the select. ***
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entry:
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call void @llvm.dbg.value(metadata i32 %getdirt, metadata !12, metadata !DIExpression()), !dbg !15
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call void @llvm.dbg.value(metadata i32 %dirt, metadata !13, metadata !DIExpression()), !dbg !16
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call void @llvm.dbg.value(metadata i32 100, metadata !14, metadata !DIExpression()), !dbg !17
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%cmp = icmp ne i32 %getdirt, 0, !dbg !18
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br i1 %cmp, label %if.then, label %if.end, !dbg !20
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if.then: ; preds = %entry
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call void @llvm.dbg.value(metadata i32 %dirt, metadata !14, metadata !DIExpression()), !dbg !17
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br label %if.end, !dbg !21
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if.end: ; preds = %if.then, %entry
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%result.0 = phi i32 [ %dirt, %if.then ], [ 100, %entry ]
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call void @llvm.dbg.value(metadata i32 %result.0, metadata !14, metadata !DIExpression()), !dbg !17
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ret i32 %result.0, !dbg !22
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}
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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attributes #0 = { nounwind 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 6.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "speculate-dbgvalue.c", directory: "/foo")
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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 6.0.0"}
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!7 = distinct !DISubprogram(name: "test1", scope: !1, file: !1, line: 1, type: !8, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!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}
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!12 = !DILocalVariable(name: "getdirt", arg: 1, scope: !7, file: !1, line: 1, type: !10)
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!13 = !DILocalVariable(name: "dirt", arg: 2, scope: !7, file: !1, line: 1, type: !10)
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!14 = !DILocalVariable(name: "result", scope: !7, file: !1, line: 2, type: !10)
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!15 = !DILocation(line: 1, column: 15, scope: !7)
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!16 = !DILocation(line: 1, column: 28, scope: !7)
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!17 = !DILocation(line: 2, column: 7, scope: !7)
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!18 = !DILocation(line: 3, column: 15, scope: !19)
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!19 = distinct !DILexicalBlock(scope: !7, file: !1, line: 3, column: 7)
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!20 = !DILocation(line: 3, column: 7, scope: !7)
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!21 = !DILocation(line: 4, column: 5, scope: !19)
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!22 = !DILocation(line: 5, column: 3, scope: !7)
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