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
72 lines
3.6 KiB
LLVM
72 lines
3.6 KiB
LLVM
; RUN: opt %s -passes=indvars -S -o - | FileCheck %s
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source_filename = "/Data/llvm/test/Transforms/IndVarSimplify/scev-phi-debug-info.ll"
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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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%struct.status = type { i32, ptr }
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@status = internal unnamed_addr global [32 x %struct.status] zeroinitializer, align 16, !dbg !0
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define void @f0() local_unnamed_addr !dbg !20 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 0, metadata !23, metadata !DIExpression()), !dbg !24
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br label %for.cond, !dbg !24
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for.cond: ; preds = %for.body, %entry
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; CHECK: %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ]
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; CHECK: #dbg_value(i64 %indvars.iv, !23, !DIExpression(), !24
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%i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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tail call void @llvm.dbg.value(metadata i32 %i.0, metadata !23, metadata !DIExpression()), !dbg !24
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%cmp = icmp slt i32 %i.0, 32, !dbg !24
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br i1 %cmp, label %for.body, label %for.end, !dbg !24
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for.body: ; preds = %for.cond
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%idxprom = sext i32 %i.0 to i64, !dbg !24
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%value = getelementptr inbounds [32 x %struct.status], ptr @status, i64 0, i64 %idxprom, i32 0, !dbg !24
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store i32 42, ptr %value, align 16, !dbg !24
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tail call void @use(i32 %i.0), !dbg !24
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%inc = add nsw i32 %i.0, 1, !dbg !24
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tail call void @llvm.dbg.value(metadata i32 %inc, metadata !23, metadata !DIExpression()), !dbg !24
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br label %for.cond, !dbg !24
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for.end: ; preds = %for.cond
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ret void, !dbg !24
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}
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declare void @use(i32)
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; Function Attrs: nounwind readnone speculatable
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declare void @llvm.dbg.value(metadata, metadata, metadata) #0
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attributes #0 = { nounwind readnone speculatable }
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!16, !17, !18}
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!llvm.ident = !{!19}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "status", scope: !2, file: !3, line: 5, type: !6, isLocal: true, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 6.0.0 (trunk 316001) (llvm/trunk 316171)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5)
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!3 = !DIFile(filename: "x.c", directory: "/home/davide/work/llvm/build-release/bin")
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!4 = !{}
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!5 = !{!0}
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!6 = !DICompositeType(tag: DW_TAG_array_type, baseType: !7, size: 4096, elements: !14)
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!7 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "status", file: !3, line: 2, size: 128, elements: !8)
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!8 = !{!9, !11}
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!9 = !DIDerivedType(tag: DW_TAG_member, name: "value", scope: !7, file: !3, line: 3, baseType: !10, size: 32)
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DIDerivedType(tag: DW_TAG_member, name: "p", scope: !7, file: !3, line: 4, baseType: !12, size: 64, offset: 64)
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!12 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !13, size: 64)
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!13 = !DIBasicType(name: "unsigned char", size: 8, encoding: DW_ATE_unsigned_char)
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!14 = !{!15}
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!15 = !DISubrange(count: 32)
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!16 = !{i32 2, !"Dwarf Version", i32 4}
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!17 = !{i32 2, !"Debug Info Version", i32 3}
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!18 = !{i32 1, !"wchar_size", i32 4}
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!19 = !{!"clang version 6.0.0 (trunk 316001) (llvm/trunk 316171)"}
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!20 = distinct !DISubprogram(name: "f0", scope: !3, file: !3, line: 6, type: !21, isLocal: false, isDefinition: true, scopeLine: 7, flags: DIFlagPrototyped, isOptimized: true, unit: !2, retainedNodes: !22)
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!21 = !DISubroutineType(types: !4)
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!22 = !{!23}
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!23 = !DILocalVariable(name: "i", scope: !20, file: !3, line: 8, type: !10)
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!24 = !DILocation(line: 9, scope: !20)
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