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annotate test/Transforms/LoopVectorize/runtime-check.ll @ 100:7d135dc70f03 LLVM 3.9

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LLVM 3.9
author Miyagi Mitsuki <e135756@ie.u-ryukyu.ac.jp>
date Tue, 26 Jan 2016 22:53:40 +0900
parents afa8332a0e37
children 1172e4bd9c6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 ; RUN: opt < %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -dce -instcombine -S | FileCheck %s
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3 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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4 target triple = "x86_64-apple-macosx10.9.0"
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5
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6 ; Make sure we vectorize this loop:
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7 ; int foo(float *a, float *b, int n) {
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8 ; for (int i=0; i<n; ++i)
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9 ; a[i] = b[i] * 3;
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10 ; }
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12 ;CHECK-LABEL: define i32 @foo
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13 ;CHECK: for.body.preheader:
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14 ;CHECK: br i1 %cmp.zero, label %scalar.ph, label %vector.memcheck, !dbg [[BODY_LOC:![0-9]+]]
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15 ;CHECK: vector.memcheck:
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16 ;CHECK: br i1 %memcheck.conflict, label %scalar.ph, label %vector.ph, !dbg [[BODY_LOC]]
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17 ;CHECK: load <4 x float>
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18 define i32 @foo(float* nocapture %a, float* nocapture %b, i32 %n) nounwind uwtable ssp {
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19 entry:
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20 %cmp6 = icmp sgt i32 %n, 0, !dbg !6
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21 br i1 %cmp6, label %for.body, label %for.end, !dbg !6
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22
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23 for.body: ; preds = %entry, %for.body
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24 %indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %entry ], !dbg !7
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25 %arrayidx = getelementptr inbounds float, float* %b, i64 %indvars.iv, !dbg !7
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26 %0 = load float, float* %arrayidx, align 4, !dbg !7
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27 %mul = fmul float %0, 3.000000e+00, !dbg !7
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28 %arrayidx2 = getelementptr inbounds float, float* %a, i64 %indvars.iv, !dbg !7
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29 store float %mul, float* %arrayidx2, align 4, !dbg !7
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30 %indvars.iv.next = add i64 %indvars.iv, 1, !dbg !7
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31 %lftr.wideiv = trunc i64 %indvars.iv.next to i32, !dbg !7
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32 %exitcond = icmp eq i32 %lftr.wideiv, %n, !dbg !7
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33 br i1 %exitcond, label %for.end, label %for.body, !dbg !7
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34
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35 for.end: ; preds = %for.body, %entry
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36 ret i32 undef, !dbg !8
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37 }
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38
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39 ; Make sure that we try to vectorize loops with a runtime check if the
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40 ; dependency check fails.
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41
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42 ; CHECK-LABEL: test_runtime_check
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43 ; CHECK: <4 x float>
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44 define void @test_runtime_check(float* %a, float %b, i64 %offset, i64 %offset2, i64 %n) {
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45 entry:
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46 br label %for.body
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47
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48 for.body:
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49 %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
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50 %ind.sum = add i64 %iv, %offset
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51 %arr.idx = getelementptr inbounds float, float* %a, i64 %ind.sum
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52 %l1 = load float, float* %arr.idx, align 4
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53 %ind.sum2 = add i64 %iv, %offset2
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54 %arr.idx2 = getelementptr inbounds float, float* %a, i64 %ind.sum2
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55 %l2 = load float, float* %arr.idx2, align 4
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56 %m = fmul fast float %b, %l2
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57 %ad = fadd fast float %l1, %m
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58 store float %ad, float* %arr.idx, align 4
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59 %iv.next = add nuw nsw i64 %iv, 1
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60 %exitcond = icmp eq i64 %iv.next, %n
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61 br i1 %exitcond, label %loopexit, label %for.body
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62
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63 loopexit:
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64 ret void
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65 }
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66
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67 ; CHECK: [[BODY_LOC]] = !DILocation(line: 101, column: 1, scope: !{{.*}})
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68
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69 !llvm.module.flags = !{!0, !1}
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70 !0 = !{i32 2, !"Dwarf Version", i32 4}
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71 !1 = !{i32 2, !"Debug Info Version", i32 3}
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72
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73 !2 = !{}
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74 !3 = !DISubroutineType(types: !2)
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75 !4 = !DIFile(filename: "test.cpp", directory: "/tmp")
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76 !5 = distinct !DISubprogram(name: "foo", scope: !4, file: !4, line: 99, type: !3, isLocal: false, isDefinition: true, scopeLine: 100, flags: DIFlagPrototyped, isOptimized: false, variables: !2)
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77 !6 = !DILocation(line: 100, column: 1, scope: !5)
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78 !7 = !DILocation(line: 101, column: 1, scope: !5)
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79 !8 = !DILocation(line: 102, column: 1, scope: !5)