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annotate test/Transforms/IndVarSimplify/tripcount_infinite.ll @ 52:c22698ecb2a9

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modified CreateIdentifierInfo and create new function which was named 'CreateUniqueIdentifierInfo'.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 Jan 2014 21:01:33 +0900
parents 95c75e76d11b
children afa8332a0e37
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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95c75e76d11b LLVM 3.4
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1 ; These tests have an infinite trip count. We obviously shouldn't remove the
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2 ; loops! :)
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3 ;
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4 ; RUN: opt < %s -indvars -adce -simplifycfg -S | grep icmp | wc -l > %t2
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5 ; RUN: llvm-as < %s | llvm-dis | grep icmp | wc -l > %t1
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6 ; RUN: diff %t1 %t2
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8 ;; test for (i = 1; i != 100; i += 2)
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9 define i32 @infinite_linear() {
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10 entry:
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11 br label %loop
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13 loop: ; preds = %loop, %entry
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14 %i = phi i32 [ 1, %entry ], [ %i.next, %loop ] ; <i32> [#uses=3]
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15 %i.next = add i32 %i, 2 ; <i32> [#uses=1]
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16 %c = icmp ne i32 %i, 100 ; <i1> [#uses=1]
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17 br i1 %c, label %loop, label %loopexit
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19 loopexit: ; preds = %loop
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20 ret i32 %i
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21 }
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23 ;; test for (i = 1; i*i != 63; ++i)
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24 define i32 @infinite_quadratic() {
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25 entry:
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26 br label %loop
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28 loop: ; preds = %loop, %entry
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29 %i = phi i32 [ 1, %entry ], [ %i.next, %loop ] ; <i32> [#uses=4]
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30 %isquare = mul i32 %i, %i ; <i32> [#uses=1]
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31 %i.next = add i32 %i, 1 ; <i32> [#uses=1]
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32 %c = icmp ne i32 %isquare, 63 ; <i1> [#uses=1]
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33 br i1 %c, label %loop, label %loopexit
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34
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35 loopexit: ; preds = %loop
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36 ret i32 %i
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37 }
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