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
106 lines
5.7 KiB
LLVM
106 lines
5.7 KiB
LLVM
; RUN: opt -loop-reduce -S %s | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators -loop-reduce -S %s | FileCheck %s
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;; This test ensures that no attempt is made to translate long SCEVs into
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;; DIExpressions. Attempting the translation can use excessive resources and
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;; result in crashes.
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@c = dso_local local_unnamed_addr global i32 0, align 4, !dbg !0
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@b = dso_local local_unnamed_addr global i32 0, align 4, !dbg !9
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@a = dso_local local_unnamed_addr global i32 0, align 4, !dbg !5
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define dso_local i32 @d() local_unnamed_addr #0 !dbg !16 {
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entry:
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%b.promoted = load i32, ptr @b, align 4, !tbaa !29
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%mul = mul nsw i32 %b.promoted, %b.promoted, !dbg !33
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%mul.1 = mul nsw i32 %mul, %mul, !dbg !33
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%mul.2 = mul nsw i32 %mul.1, %mul.1, !dbg !33
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%mul.3 = mul nsw i32 %mul.2, %mul.2, !dbg !33
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%mul.4 = mul nsw i32 %mul.3, %mul.3, !dbg !33
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%mul.5 = mul nsw i32 %mul.4, %mul.4, !dbg !33
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%mul.6 = mul nsw i32 %mul.5, %mul.5, !dbg !33
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%mul.7 = mul nsw i32 %mul.6, %mul.6, !dbg !33
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%mul.8 = mul nsw i32 %mul.7, %mul.7, !dbg !33
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%mul.9 = mul nsw i32 %mul.8, %mul.8, !dbg !33
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store i32 49, ptr @c, align 4, !dbg !36, !tbaa !29
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store i32 %mul.9, ptr @b, align 4, !dbg !37, !tbaa !29
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%.pr = load i32, ptr @a, align 4, !dbg !38, !tbaa !29
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%tobool.not8 = icmp eq i32 %.pr, 0, !dbg !39
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br i1 %tobool.not8, label %for.end3, label %for.body2.preheader, !dbg !39
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for.body2.preheader: ; preds = %entry
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br label %for.body2, !dbg !39
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for.body2: ; preds = %for.body2.preheader, %for.body2
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%0 = phi i32 [ %sub, %for.body2 ], [ %.pr, %for.body2.preheader ]
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%sub = sub nsw i32 %0, %mul.9, !dbg !40
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; CHECK: #dbg_value(!DIArgList(i32 poison, i32 %mul.9), ![[VAR_e:[0-9]+]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_minus, DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_LLVM_convert, 64, DW_ATE_signed, DW_OP_stack_value),
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call void @llvm.dbg.value(metadata i32 %sub, metadata !20, metadata !DIExpression(DW_OP_LLVM_convert, 32, DW_ATE_signed, DW_OP_LLVM_convert, 64, DW_ATE_signed, DW_OP_stack_value)), !dbg !41
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%tobool.not = icmp eq i32 %sub, 0, !dbg !39
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br i1 %tobool.not, label %for.cond1.for.end3_crit_edge, label %for.body2, !dbg !39, !llvm.loop !42
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for.cond1.for.end3_crit_edge: ; preds = %for.body2
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store i32 0, ptr @a, align 4, !dbg !40, !tbaa !29
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br label %for.end3, !dbg !39
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for.end3: ; preds = %for.cond1.for.end3_crit_edge, %entry
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ret i32 poison, !dbg !45
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}
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declare void @llvm.dbg.value(metadata, metadata, metadata) #1
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!11, !12, !13, !14}
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!llvm.ident = !{!15}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "c", scope: !2, file: !7, line: 2, type: !8, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 14.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, globals: !4, splitDebugInlining: false, nameTableKind: None)
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!3 = !DIFile(filename: "test.c", directory: "/test")
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!4 = !{!5, !9, !0}
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!5 = !DIGlobalVariableExpression(var: !6, expr: !DIExpression())
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!6 = distinct !DIGlobalVariable(name: "a", scope: !2, file: !7, line: 2, type: !8, isLocal: false, isDefinition: true)
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!7 = !DIFile(filename: "./test.c", directory: "/test")
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!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!9 = !DIGlobalVariableExpression(var: !10, expr: !DIExpression())
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!10 = distinct !DIGlobalVariable(name: "b", scope: !2, file: !7, line: 2, type: !8, isLocal: false, isDefinition: true)
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!11 = !{i32 7, !"Dwarf Version", i32 4}
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!12 = !{i32 2, !"Debug Info Version", i32 3}
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!13 = !{i32 1, !"wchar_size", i32 4}
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!14 = !{i32 7, !"uwtable", i32 1}
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!15 = !{!"clang version 14.0.0"}
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!16 = distinct !DISubprogram(name: "d", scope: !7, file: !7, line: 3, type: !17, scopeLine: 3, flags: DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !2, retainedNodes: !19)
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!17 = !DISubroutineType(types: !18)
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!18 = !{!8}
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!19 = !{!20}
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; CHECK: ![[VAR_e]] = !DILocalVariable(name: "e", scope: !21, file: !7, line: 8, type: !24)
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!20 = !DILocalVariable(name: "e", scope: !21, file: !7, line: 8, type: !24)
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!21 = distinct !DILexicalBlock(scope: !22, file: !7, line: 7, column: 14)
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!22 = distinct !DILexicalBlock(scope: !23, file: !7, line: 7, column: 3)
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!23 = distinct !DILexicalBlock(scope: !16, file: !7, line: 7, column: 3)
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!24 = !DIDerivedType(tag: DW_TAG_typedef, name: "uint64_t", file: !25, line: 27, baseType: !26)
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!25 = !DIFile(filename: "/usr/include/x86_64-linux-gnu/bits/stdint-uintn.h", directory: "")
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!26 = !DIDerivedType(tag: DW_TAG_typedef, name: "__uint64_t", file: !27, line: 44, baseType: !28)
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!27 = !DIFile(filename: "/usr/include/x86_64-linux-gnu/bits/types.h", directory: "")
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!28 = !DIBasicType(name: "long unsigned int", size: 64, encoding: DW_ATE_unsigned)
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!29 = !{!30, !30, i64 0}
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!30 = !{!"int", !31, i64 0}
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!31 = !{!"omnipotent char", !32, i64 0}
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!32 = !{!"Simple C/C++ TBAA"}
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!33 = !DILocation(line: 6, column: 7, scope: !34)
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!34 = distinct !DILexicalBlock(scope: !35, file: !7, line: 5, column: 3)
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!35 = distinct !DILexicalBlock(scope: !16, file: !7, line: 5, column: 3)
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!36 = !DILocation(line: 0, scope: !16)
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!37 = !DILocation(line: 0, scope: !34)
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!38 = !DILocation(line: 7, column: 10, scope: !22)
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!39 = !DILocation(line: 7, column: 3, scope: !23)
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!40 = !DILocation(line: 8, column: 20, scope: !21)
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!41 = !DILocation(line: 0, scope: !21)
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!42 = distinct !{!42, !39, !43, !44}
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!43 = !DILocation(line: 9, column: 3, scope: !23)
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!44 = !{!"llvm.loop.mustprogress"}
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!45 = !DILocation(line: 10, column: 1, scope: !16)
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