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72 lines
3.5 KiB
LLVM
72 lines
3.5 KiB
LLVM
; FIXME: Fix machine verifier issues and remove -verify-machineinstrs=0. PR39452.
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; RUN: llc -stop-before=expand-isel-pseudos -pre-RA-sched=linearize -verify-machineinstrs=0 < %s | FileCheck %s
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source_filename = "linear-dbg-value.ll"
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; Function Attrs: nounwind readonly uwtable
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define i32 @foo(i32* nocapture readonly %a, i32 %N) local_unnamed_addr #0 !dbg !6 {
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entry:
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%cmp6 = icmp sgt i32 %N, 0, !dbg !11
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br i1 %cmp6, label %for.body.preheader, label %for.cond.cleanup, !dbg !15
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for.body.preheader: ; preds = %entry
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%wide.trip.count = zext i32 %N to i64
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br label %for.body, !dbg !17
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for.cond.cleanup.loopexit: ; preds = %for.body
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br label %for.cond.cleanup, !dbg !19
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%x.0.lcssa = phi i32 [ 0, %entry ], [ %add, %for.cond.cleanup.loopexit ]
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ret i32 %x.0.lcssa, !dbg !19
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for.body: ; preds = %for.body, %for.body.preheader
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; CHECK: ![[X:[0-9]+]] = !DILocalVariable(name: "x",
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; CHECK-LABEL: bb.3.for.body:
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; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression()
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; CHECK: DBG_VALUE {{.*}} ![[X]], !DIExpression()
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%x.07 = phi i32 [ %add, %for.body ], [ 0, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %a, i64 %indvars.iv, !dbg !17
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%0 = load i32, i32* %arrayidx, align 4, !dbg !17
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%add = add nsw i32 %0, %x.07, !dbg !17
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call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !21
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call void @llvm.dbg.value(metadata i32 %add, metadata !9, metadata !DIExpression()), !dbg !20
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%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count, !dbg !11
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !15
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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 readonly 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}
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!llvm.ident = !{!5}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.1 ", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
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!1 = !DIFile(filename: "foo.c", directory: "/tmp")
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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 = !{!"clang version 4.0.1 "}
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!6 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 2, type: !7, isLocal: false, isDefinition: true, scopeLine: 2, flags: DIFlagPrototyped, isOptimized: true, unit: !0, retainedNodes: !8)
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!7 = !DISubroutineType(types: !2)
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!8 = !{!9}
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!9 = !DILocalVariable(name: "x", scope: !6, file: !1, line: 3, type: !10)
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!10 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!11 = !DILocation(line: 4, scope: !12)
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!12 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 1)
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!13 = distinct !DILexicalBlock(scope: !14, file: !1, line: 4, column: 3)
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!14 = distinct !DILexicalBlock(scope: !6, file: !1, line: 4, column: 3)
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!15 = !DILocation(line: 4, scope: !16)
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!16 = !DILexicalBlockFile(scope: !14, file: !1, discriminator: 1)
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!17 = !DILocation(line: 5, scope: !18)
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!18 = distinct !DILexicalBlock(scope: !13, file: !1, line: 4, column: 31)
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!19 = !DILocation(line: 7, scope: !6)
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!20 = !DILocation(line: 3, scope: !6)
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!21 = !DILocation(line: 4, scope: !22)
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!22 = !DILexicalBlockFile(scope: !13, file: !1, discriminator: 3)
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