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annotate test/Transforms/InstCombine/select-select.ll @ 77:54457678186b LLVM3.6

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LLVM 3.6
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Mon, 08 Sep 2014 22:06:00 +0900
parents
children afa8332a0e37
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77
54457678186b LLVM 3.6
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: opt -instcombine -S < %s | FileCheck %s
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2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 ; CHECK: @foo1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 define float @foo1(float %a) #0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5 ; CHECK-NOT: xor
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 %b = fcmp ogt float %a, 0.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 %c = select i1 %b, float %a, float 0.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 %d = fcmp olt float %c, 1.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 %f = select i1 %d, float %c, float 1.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ret float %f
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11 }
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12
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 ; CHECK: @foo2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 define float @foo2(float %a) #0 {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 ; CHECK-NOT: xor
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16 %b = fcmp ogt float %a, 0.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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17 %c = select i1 %b, float %a, float 0.000000e+00
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18 %d = fcmp olt float %c, 1.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 %e = select i1 %b, float %a, float 0.000000e+00
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20 %f = select i1 %d, float %e, float 1.000000e+00
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 ret float %f
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22 }
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23
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24 attributes #0 = { nounwind readnone ssp uwtable }