isnan2.ll
608 Bytes
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-- -mcpu=yonah | FileCheck %s
; This should not need to materialize 0.0 to evaluate the condition.
define i32 @test(double %X) nounwind {
; CHECK-LABEL: test:
; CHECK: # %bb.0: # %entry
; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: ucomisd %xmm0, %xmm0
; CHECK-NEXT: setp %al
; CHECK-NEXT: retl
entry:
%tmp6 = fcmp uno double %X, 0.000000e+00 ; <i1> [#uses=1]
%tmp67 = zext i1 %tmp6 to i32 ; <i32> [#uses=1]
ret i32 %tmp67
}