Add a test for performing GVNPRE on select instructions.
llvm-svn: 37782
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; RUN: llvm-as < %s | opt -gvnpre | llvm-dis | grep b.gvnpre
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define i32 @extract() {
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entry: ; preds = %cond_false, %entry
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br i1 true, label %cond_true, label %cond_false
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cond_true:
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br label %end
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cond_false:
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%a = select i1 true, i32 0, i32 1
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br label %end
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end:
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%b = select i1 true, i32 0, i32 1
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ret i32 %b
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}
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