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annotate test/Transforms/InstCombine/2004-09-20-BadLoadCombine2.ll @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents afa8332a0e37
children
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: opt < %s -instcombine -mem2reg -simplifycfg | \
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2 ; RUN: llvm-dis | grep -v store | not grep "i32 1"
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4 ; Test to make sure that instcombine does not accidentally propagate the load
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5 ; into the PHI, which would break the program.
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7 define i32 @test(i1 %C) {
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8 entry:
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9 %X = alloca i32 ; <i32*> [#uses=3]
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10 %X2 = alloca i32 ; <i32*> [#uses=2]
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11 store i32 1, i32* %X
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12 store i32 2, i32* %X2
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13 br i1 %C, label %cond_true.i, label %cond_continue.i
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15 cond_true.i: ; preds = %entry
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16 br label %cond_continue.i
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18 cond_continue.i: ; preds = %cond_true.i, %entry
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19 %mem_tmp.i.0 = phi i32* [ %X, %cond_true.i ], [ %X2, %entry ] ; <i32*> [#uses=1]
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20 store i32 3, i32* %X
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afa8332a0e37 LLVM 3.8
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21 %tmp.3 = load i32, i32* %mem_tmp.i.0 ; <i32> [#uses=1]
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22 ret i32 %tmp.3
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23 }
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