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a9fbb2813b
This patch reverses the edge from DIGlobalVariable to GlobalVariable. This will allow us to more easily preserve debug info metadata when manipulating global variables. Fixes PR30362. A program for upgrading test cases is attached to that bug. Differential Revision: http://reviews.llvm.org/D20147 llvm-svn: 281284
70 lines
3.7 KiB
LLVM
70 lines
3.7 KiB
LLVM
; RUN: opt < %s -S -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine | FileCheck %s
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; Make sure we vectorize with debugging turned on.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.8.0"
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@A = global [1024 x i32] zeroinitializer, align 16, !dbg !12
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@B = global [1024 x i32] zeroinitializer, align 16, !dbg !16
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@C = global [1024 x i32] zeroinitializer, align 16, !dbg !17
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; CHECK-LABEL: @test(
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define i32 @test() #0 !dbg !3 {
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entry:
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tail call void @llvm.dbg.value(metadata i32 0, i64 0, metadata !9, metadata !DIExpression()), !dbg !18
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br label %for.body, !dbg !18
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for.body:
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;CHECK: load <4 x i32>
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%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
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%arrayidx = getelementptr inbounds [1024 x i32], [1024 x i32]* @B, i64 0, i64 %indvars.iv, !dbg !19
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%0 = load i32, i32* %arrayidx, align 4, !dbg !19
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%arrayidx2 = getelementptr inbounds [1024 x i32], [1024 x i32]* @C, i64 0, i64 %indvars.iv, !dbg !19
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%1 = load i32, i32* %arrayidx2, align 4, !dbg !19
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%add = add nsw i32 %1, %0, !dbg !19
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%arrayidx4 = getelementptr inbounds [1024 x i32], [1024 x i32]* @A, i64 0, i64 %indvars.iv, !dbg !19
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store i32 %add, i32* %arrayidx4, align 4, !dbg !19
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%indvars.iv.next = add i64 %indvars.iv, 1, !dbg !18
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tail call void @llvm.dbg.value(metadata !{null}, i64 0, metadata !9, metadata !DIExpression()), !dbg !18
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !18
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%exitcond = icmp ne i32 %lftr.wideiv, 1024, !dbg !18
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br i1 %exitcond, label %for.body, label %for.end, !dbg !18
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for.end:
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ret i32 0, !dbg !24
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}
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declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
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declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
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attributes #0 = { nounwind ssp uwtable "fp-contract-model"="standard" "no-frame-pointer-elim" "no-frame-pointer-elim-non-leaf" "relocation-model"="pic" "ssp-buffers-size"="8" }
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attributes #1 = { nounwind readnone }
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!26}
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!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, producer: "clang", isOptimized: true, emissionKind: FullDebug, file: !25, enums: !1, retainedTypes: !1, globals: !11)
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!1 = !{}
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!3 = distinct !DISubprogram(name: "test", linkageName: "test", line: 5, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !0, scopeLine: 5, file: !25, scope: !4, type: !5, variables: !8)
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!4 = !DIFile(filename: "test", directory: "/path/to/somewhere")
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!5 = !DISubroutineType(types: !6)
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!6 = !{!7}
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!7 = !DIBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "i", line: 6, scope: !10, file: !4, type: !7)
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!10 = distinct !DILexicalBlock(line: 6, column: 0, file: !25, scope: !3)
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!11 = !{!12, !16, !17}
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!12 = !DIGlobalVariable(name: "A", line: 1, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
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!13 = !DICompositeType(tag: DW_TAG_array_type, size: 32768, align: 32, baseType: !7, elements: !14)
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!14 = !{!15}
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!15 = !{i32 786465, i64 0, i64 1024}
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!16 = !DIGlobalVariable(name: "B", line: 2, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
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!17 = !DIGlobalVariable(name: "C", line: 3, isLocal: false, isDefinition: true, scope: null, file: !4, type: !13)
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!18 = !DILocation(line: 6, scope: !10)
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!19 = !DILocation(line: 7, scope: !20)
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!20 = distinct !DILexicalBlock(line: 6, column: 0, file: !25, scope: !10)
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!24 = !DILocation(line: 9, scope: !3)
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!25 = !DIFile(filename: "test", directory: "/path/to/somewhere")
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!26 = !{i32 1, !"Debug Info Version", i32 3}
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