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annotate test/Transforms/InstCombine/deadcode.ll @ 121:803732b1fca8

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LLVM 5.0
author kono
date Fri, 27 Oct 2017 17:07:41 +0900
parents 95c75e76d11b
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 -S | grep "ret i32 %A"
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2 ; RUN: opt < %s -die -S | not grep call.*llvm
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4 define i32 @test(i32 %A) {
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5 %X = or i1 false, false
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6 br i1 %X, label %T, label %C
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8 T: ; preds = %0
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9 %B = add i32 %A, 1
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10 br label %C
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12 C: ; preds = %T, %0
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13 %C.upgrd.1 = phi i32 [ %B, %T ], [ %A, %0 ]
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14 ret i32 %C.upgrd.1
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15 }
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17 define i32* @test2(i32 %width) {
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18 %tmp = call i8* @llvm.stacksave( )
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19 %tmp14 = alloca i32, i32 %width
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20 ret i32* %tmp14
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21 }
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23 declare i8* @llvm.stacksave()
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25 declare void @llvm.lifetime.start.p0i8(i64, i8*)
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26 declare void @llvm.lifetime.end.p0i8(i64, i8*)
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28 define void @test3() {
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29 call void @llvm.lifetime.start.p0i8(i64 -1, i8* undef)
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30 call void @llvm.lifetime.end.p0i8(i64 -1, i8* undef)
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31 ret void
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32 }
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