| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | |
| ; RUN: llc < %s -mtriple=i686-- | FileCheck %s | |
| declare i1 @llvm.isunordered.f64(double) | |
| define i1 @test_isnan(double %X) { | |
| ; CHECK-LABEL: test_isnan: | |
| ; CHECK: # %bb.0: | |
| ; CHECK-NEXT: fldl {{[0-9]+}}(%esp) | |
| ; CHECK-NEXT: fucomp %st(0) | |
| ; CHECK-NEXT: fnstsw %ax | |
| ; CHECK-NEXT: # kill: def $ah killed $ah killed $ax | |
| ; CHECK-NEXT: sahf | |
| ; CHECK-NEXT: setp %al | |
| ; CHECK-NEXT: retl | |
| %R = fcmp uno double %X, %X ; <i1> [#uses=1] | |
| ret i1 %R | |
| } | |