110 lines
5.4 KiB
LLVM
110 lines
5.4 KiB
LLVM
; RUN: opt < %s -loop-vectorize -mtriple=x86_64-unknown-linux -S -pass-remarks='loop-vectorize' -pass-remarks-missed='loop-vectorize' -pass-remarks-analysis='loop-vectorize' 2>&1 | FileCheck %s
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; CHECK: remark: no_fpmath.c:6:11: loop not vectorized: cannot prove it is safe to reorder floating-point operations
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; CHECK: remark: no_fpmath.c:6:14: loop not vectorized
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; CHECK: remark: no_fpmath.c:17:14: vectorized loop (vectorization width: 2, interleaved count: 2)
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target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-apple-macosx10.10.0"
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; Function Attrs: nounwind readonly ssp uwtable
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define double @cond_sum(i32* nocapture readonly %v, i32 %n) #0 !dbg !4 {
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entry:
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%cmp.7 = icmp sgt i32 %n, 0, !dbg !3
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br i1 %cmp.7, label %for.body.preheader, label %for.cond.cleanup, !dbg !8
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for.body.preheader: ; preds = %entry
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br label %for.body, !dbg !9
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for.cond.cleanup.loopexit: ; preds = %for.body
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%add.lcssa = phi double [ %add, %for.body ]
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br label %for.cond.cleanup, !dbg !10
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%a.0.lcssa = phi double [ 0.000000e+00, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
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ret double %a.0.lcssa, !dbg !10
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%a.08 = phi double [ %add, %for.body ], [ 0.000000e+00, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %v, i64 %indvars.iv, !dbg !9
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%0 = load i32, i32* %arrayidx, align 4, !dbg !9, !tbaa !11
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%cmp1 = icmp eq i32 %0, 0, !dbg !15
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%cond = select i1 %cmp1, double 3.400000e+00, double 1.150000e+00, !dbg !9
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%add = fadd double %a.08, %cond, !dbg !16
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !8
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !8
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%exitcond = icmp eq i32 %lftr.wideiv, %n, !dbg !8
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !8, !llvm.loop !17
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}
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; Function Attrs: nounwind readonly ssp uwtable
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define double @cond_sum_loop_hint(i32* nocapture readonly %v, i32 %n) #0 !dbg !20 {
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entry:
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%cmp.7 = icmp sgt i32 %n, 0, !dbg !19
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br i1 %cmp.7, label %for.body.preheader, label %for.cond.cleanup, !dbg !21
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for.body.preheader: ; preds = %entry
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br label %for.body, !dbg !22
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for.cond.cleanup.loopexit: ; preds = %for.body
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%add.lcssa = phi double [ %add, %for.body ]
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br label %for.cond.cleanup, !dbg !23
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%a.0.lcssa = phi double [ 0.000000e+00, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
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ret double %a.0.lcssa, !dbg !23
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for.body: ; preds = %for.body.preheader, %for.body
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%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
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%a.08 = phi double [ %add, %for.body ], [ 0.000000e+00, %for.body.preheader ]
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%arrayidx = getelementptr inbounds i32, i32* %v, i64 %indvars.iv, !dbg !22
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%0 = load i32, i32* %arrayidx, align 4, !dbg !22, !tbaa !11
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%cmp1 = icmp eq i32 %0, 0, !dbg !24
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%cond = select i1 %cmp1, double 3.400000e+00, double 1.150000e+00, !dbg !22
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%add = fadd double %a.08, %cond, !dbg !25
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%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1, !dbg !21
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%lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !21
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%exitcond = icmp eq i32 %lftr.wideiv, %n, !dbg !21
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br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body, !dbg !21, !llvm.loop !26
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}
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attributes #0 = { nounwind }
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!llvm.dbg.cu = !{!28}
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!llvm.module.flags = !{!0, !1}
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!llvm.ident = !{!2}
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!0 = !{i32 2, !"Debug Info Version", i32 3}
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!1 = !{i32 1, !"PIC Level", i32 2}
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!2 = !{!"clang version 3.7.0"}
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!3 = !DILocation(line: 5, column: 20, scope: !4)
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!4 = distinct !DISubprogram(name: "cond_sum", scope: !5, file: !5, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !28, variables: !7)
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!5 = !DIFile(filename: "no_fpmath.c", directory: "")
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!6 = !DISubroutineType(types: !7)
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!7 = !{}
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!8 = !DILocation(line: 5, column: 3, scope: !4)
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!9 = !DILocation(line: 6, column: 14, scope: !4)
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!10 = !DILocation(line: 9, column: 3, scope: !4)
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!11 = !{!12, !12, i64 0}
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!12 = !{!"int", !13, i64 0}
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!13 = !{!"omnipotent char", !14, i64 0}
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!14 = !{!"Simple C/C++ TBAA"}
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!15 = !DILocation(line: 6, column: 19, scope: !4)
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!16 = !DILocation(line: 6, column: 11, scope: !4)
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!17 = distinct !{!17, !18}
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!18 = !{!"llvm.loop.unroll.disable"}
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!19 = !DILocation(line: 16, column: 20, scope: !20)
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!20 = distinct !DISubprogram(name: "cond_sum_loop_hint", scope: !5, file: !5, line: 12, type: !6, isLocal: false, isDefinition: true, scopeLine: 12, flags: DIFlagPrototyped, isOptimized: true, unit: !28, variables: !7)
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!21 = !DILocation(line: 16, column: 3, scope: !20)
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!22 = !DILocation(line: 17, column: 14, scope: !20)
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!23 = !DILocation(line: 20, column: 3, scope: !20)
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!24 = !DILocation(line: 17, column: 19, scope: !20)
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!25 = !DILocation(line: 17, column: 11, scope: !20)
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!26 = distinct !{!26, !27, !18}
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!27 = !{!"llvm.loop.vectorize.enable", i1 true}
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!28 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang",
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file: !5,
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isOptimized: true, flags: "-O2",
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splitDebugFilename: "abc.debug", emissionKind: 2)
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