llvm-6502/test/CodeGen/X86/isnan2.ll

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; RUN: llc < %s -march=x86 -mcpu=yonah | not grep pxor
; This should not need to materialize 0.0 to evaluate the condition.
define i32 @test(double %X) nounwind {
entry:
%tmp6 = fcmp uno double %X, 0.000000e+00 ; <i1> [#uses=1]
%tmp67 = zext i1 %tmp6 to i32 ; <i32> [#uses=1]
ret i32 %tmp67
}