llvm.org GIT mirror llvm / 5b05711 test / CodeGen / X86 / fsxor-alignment.ll
5b05711

Tree @5b05711 (Download .tar.gz)

fsxor-alignment.ll @5b05711

36a0947
28beeea
d300622
 
 
 
 
 
ae3a0be
 
d300622
 
 
 
; RUN: llc < %s -march=x86 -mattr=+sse2 -enable-unsafe-fp-math | \
; RUN:  grep -v sp | grep xorps | count 2

; Don't fold the incoming stack arguments into the xorps instructions used
; to do floating-point negations, because the arguments aren't vectors
; and aren't vector-aligned.

define void @foo(float* %p, float* %q, float %s, float %y) {
  %ss = fsub float -0.0, %s
  %yy = fsub float -0.0, %y
  store float %ss, float* %p
  store float %yy, float* %q
  ret void
}