File: fsxor-alignment.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (14 lines) | stat: -rw-r--r-- 479 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
; RUN: llc < %s -mtriple=i686-- -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
}