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5062250f36
optimization opportunity pointed out by Chris Lattner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31118 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
566 B
LLVM
22 lines
566 B
LLVM
; RUN: llvm-as < %s | opt -predsimplify -instcombine -simplifycfg | llvm-dis | grep -v declare | not grep fail
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int %f(int %x, int %y) {
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entry:
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%tmp2 = or int %x, %y ; <int> [#uses=1]
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%tmp = setne int %tmp2, 0 ; <bool> [#uses=1]
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br bool %tmp, label %cond_true, label %return
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cond_true: ; preds = %entry
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%tmp4 = seteq int %x, 0 ; <bool> [#uses=1]
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br bool %tmp4, label %cond_true5, label %return
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cond_true5: ; preds = %cond_true
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%tmp6 = call int %fail( ) ; <int> [#uses=0]
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ret int %tmp6
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return: ; preds = %cond_next7
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ret int 0
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}
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declare int %fail()
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