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annotate test/Transforms/InstCombine/fold-phi.ll @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents 60c9769439b8
children
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: opt < %s -instcombine -S | FileCheck %s
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2
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3 ; CHECK: no_crash
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4 define float @no_crash(float %a) nounwind {
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5 entry:
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6 br label %for.body
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8 for.body:
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9 %sum.057 = phi float [ 0.000000e+00, %entry ], [ %add5, %bb0 ]
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10 %add5 = fadd float %sum.057, %a ; PR14592
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11 br i1 undef, label %bb0, label %end
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13 bb0:
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14 br label %for.body
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16 end:
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17 ret float %add5
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18 }
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20 ; CHECK-LABEL: @pr21377(
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21 define void @pr21377(i32) {
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22 entry:
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23 br label %while.body
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25 while.body: ; preds = %if.end, %entry
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26 %phi1 = phi i64 [ undef, %entry ], [ %or2, %if.end ]
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27 %zext = zext i32 %0 to i64
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28 br i1 undef, label %if.end, label %if.else
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30 if.else: ; preds = %while.body
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31 %or1 = or i64 %phi1, %zext
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32 %and = and i64 %or1, 4294967295
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33 br label %if.end
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34
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35 if.end: ; preds = %if.else, %while.body
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36 %phi2 = phi i64 [ %and, %if.else ], [ undef, %while.body ]
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37 %or2 = or i64 %phi2, %zext
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38 br label %while.body
0
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39 }