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
86 lines
4.7 KiB
LLVM
86 lines
4.7 KiB
LLVM
; RUN: opt < %s -loop-reduce -S | FileCheck %s
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; RUN: opt --try-experimental-debuginfo-iterators < %s -loop-reduce -S | FileCheck %s
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; Test that LSR does not produce invalid debug info when a debug value is
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; salvaged during LSR by adding additional location operands, then becomes
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; undef, and finally recovered by SCEV salvaging.
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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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define i32 @_Z3fooiii(i32 %Result, i32 %Step, i32 %Last) local_unnamed_addr !dbg !7 {
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; CHECK-LABEL: @_Z3fooiii(
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entry:
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call void @llvm.dbg.value(metadata i32 %Result, metadata !12, metadata !DIExpression()), !dbg !17
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call void @llvm.dbg.value(metadata i32 %Step, metadata !13, metadata !DIExpression()), !dbg !17
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call void @llvm.dbg.value(metadata i32 %Last, metadata !14, metadata !DIExpression()), !dbg !17
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call void @llvm.dbg.value(metadata i32 0, metadata !16, metadata !DIExpression()), !dbg !17
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br label %do.body, !dbg !18
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do.body: ; preds = %do.body, %entry
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; CHECK-LABEL: do.body:
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%Result.addr.0 = phi i32 [ %Result, %entry ], [ %or, %do.body ]
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%Itr.0 = phi i32 [ 0, %entry ], [ %add, %do.body ], !dbg !17
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; CHECK-NOT: #dbg_value(!DIArgList
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; CHECK: #dbg_value(!DIArgList(i32 %lsr.iv, i32 %Step), ![[VAR_ITR:[0-9]+]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_minus, DW_OP_LLVM_arg, 1, DW_OP_div, DW_OP_LLVM_arg, 1, DW_OP_mul, DW_OP_stack_value),
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call void @llvm.dbg.value(metadata i32 %Itr.0, metadata !16, metadata !DIExpression()), !dbg !17
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call void @llvm.dbg.value(metadata i32 %Result.addr.0, metadata !12, metadata !DIExpression()), !dbg !17
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%add = add nsw i32 %Itr.0, %Step, !dbg !19
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call void @llvm.dbg.value(metadata i32 %add, metadata !16, metadata !DIExpression()), !dbg !17
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%call = tail call i32 @_Z3barv(), !dbg !21
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call void @llvm.dbg.value(metadata i32 %call, metadata !15, metadata !DIExpression()), !dbg !17
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%shl = shl i32 %call, %add, !dbg !22
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%or = or i32 %shl, %Result.addr.0, !dbg !23
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call void @llvm.dbg.value(metadata i32 %or, metadata !12, metadata !DIExpression()), !dbg !17
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%and = and i32 %call, %Last, !dbg !24
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%tobool.not = icmp eq i32 %and, 0, !dbg !25
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br i1 %tobool.not, label %do.end, label %do.body, !dbg !26, !llvm.loop !27
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do.end: ; preds = %do.body
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ret i32 %or, !dbg !30
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}
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declare !dbg !31 dso_local i32 @_Z3barv() local_unnamed_addr
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declare void @llvm.dbg.value(metadata, metadata, metadata)
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; CHECK: ![[VAR_ITR]] = !DILocalVariable(name: "Itr"
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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_C_plus_plus_14, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "test.cpp", directory: "/")
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!2 = !{}
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!3 = !{i32 7, !"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 13.0.0"}
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!7 = distinct !DISubprogram(name: "foo", linkageName: "_Z3fooiii", scope: !1, file: !1, line: 3, type: !8, scopeLine: 3, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !11)
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!8 = !DISubroutineType(types: !9)
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!9 = !{!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}
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!12 = !DILocalVariable(name: "Result", arg: 1, scope: !7, file: !1, line: 3, type: !10)
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!13 = !DILocalVariable(name: "Step", arg: 2, scope: !7, file: !1, line: 3, type: !10)
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!14 = !DILocalVariable(name: "Last", arg: 3, scope: !7, file: !1, line: 3, type: !10)
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!15 = !DILocalVariable(name: "Bar", scope: !7, file: !1, line: 4, type: !10)
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!16 = !DILocalVariable(name: "Itr", scope: !7, file: !1, line: 5, type: !10)
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!17 = !DILocation(line: 0, scope: !7)
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!18 = !DILocation(line: 6, column: 3, scope: !7)
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!19 = !DILocation(line: 7, column: 9, scope: !20)
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!20 = distinct !DILexicalBlock(scope: !7, file: !1, line: 6, column: 6)
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!21 = !DILocation(line: 8, column: 11, scope: !20)
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!22 = !DILocation(line: 9, column: 20, scope: !20)
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!23 = !DILocation(line: 9, column: 12, scope: !20)
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!24 = !DILocation(line: 10, column: 16, scope: !7)
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!25 = !DILocation(line: 10, column: 12, scope: !7)
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!26 = !DILocation(line: 10, column: 3, scope: !20)
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!27 = distinct !{!27, !18, !28, !29}
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!28 = !DILocation(line: 10, column: 22, scope: !7)
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!29 = !{!"llvm.loop.mustprogress"}
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!30 = !DILocation(line: 11, column: 3, scope: !7)
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!31 = !DISubprogram(name: "bar", linkageName: "_Z3barv", scope: !1, file: !1, line: 1, type: !32, flags: DIFlagPrototyped, spFlags: DISPFlagOptimized, retainedNodes: !2)
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!32 = !DISubroutineType(types: !33)
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!33 = !{!10}
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