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annotate test/Transforms/IndVarSimplify/lftr-extend-const.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 95c75e76d11b
children 60c9769439b8
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ;RUN: opt -S %s -indvars | FileCheck %s
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2
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3 ; CHECK-LABEL: @foo(
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4 ; CHECK-NOT: %lftr.wideiv = trunc i32 %indvars.iv.next to i16
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5 ; CHECK: %exitcond = icmp ne i32 %indvars.iv, 511
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6 define void @foo() #0 {
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7 entry:
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8 br label %for.body
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10 for.body: ; preds = %entry, %for.body
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11 %i.01 = phi i16 [ 0, %entry ], [ %inc, %for.body ]
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12 %conv2 = sext i16 %i.01 to i32
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13 call void @bar(i32 %conv2) #1
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14 %inc = add i16 %i.01, 1
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15 %cmp = icmp slt i16 %inc, 512
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16 br i1 %cmp, label %for.body, label %for.end
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18 for.end: ; preds = %for.body
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19 ret void
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20 }
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22 ; Check that post-incrementing the backedge taken count does not overflow.
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23 ; CHECK-LABEL: @postinc(
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24 ; CHECK: icmp eq i32 %indvars.iv, 255
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25 define i32 @postinc() #0 {
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26 entry:
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27 br label %do.body
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29 do.body: ; preds = %do.body, %entry
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30 %first.0 = phi i8 [ 0, %entry ], [ %inc, %do.body ]
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31 %conv = zext i8 %first.0 to i32
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32 call void @bar(i32 %conv) #1
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33 %inc = add i8 %first.0, 1
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34 %cmp = icmp eq i8 %first.0, -1
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35 br i1 %cmp, label %do.end, label %do.body
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37 do.end: ; preds = %do.body
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38 ret i32 0
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39 }
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41 declare void @bar(i32)
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43 attributes #0 = { nounwind uwtable }
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44 attributes #1 = { nounwind }