Mercurial > hg > CbC > CbC_llvm

annotate test/Transforms/InstCombine/fast-math-scalarization.ll @ 120:1172e4bd9c6f

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update 4.0.0
author mir3636
date Fri, 25 Nov 2016 19:14:25 +0900
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120
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1 ; RUN: opt -instcombine -S < %s | FileCheck %s
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2
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3 ; CHECK-LABEL: test_scalarize_phi
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4 ; CHECK: fmul fast float
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5 define void @test_scalarize_phi(i32 * %n, float * %inout) {
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6 entry:
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7 %0 = load volatile float, float * %inout, align 4
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8 %splat.splatinsert = insertelement <4 x float> undef, float %0, i32 0
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9 %splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
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10 %splat.splatinsert1 = insertelement <4 x float> undef, float 3.0, i32 0
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11 br label %for.cond
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12
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13 for.cond:
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14 %x.0 = phi <4 x float> [ %splat.splat, %entry ], [ %mul, %for.body ]
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15 %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
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16 %1 = load i32, i32 * %n, align 4
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17 %cmp = icmp ne i32 %i.0, %1
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18 br i1 %cmp, label %for.body, label %for.end
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19
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20 for.body:
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21 %2 = extractelement <4 x float> %x.0, i32 1
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22 store volatile float %2, float * %inout, align 4
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23 %mul = fmul fast <4 x float> %x.0, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
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24 %inc = add nsw i32 %i.0, 1
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25 br label %for.cond
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26
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27 for.end:
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28 ret void
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29 }
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30
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31 ; CHECK-LABEL: test_extract_element_fastmath
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32 ; CHECK: fadd fast float
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33 define float @test_extract_element_fastmath(<4 x float> %x) #0 {
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34 entry:
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35 %add = fadd fast <4 x float> %x, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
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36 %0 = extractelement <4 x float> %add, i32 2
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37 ret float %0
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38 }
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39