File: sse-commute.ll

package info (click to toggle)
llvm-toolchain-15 1%3A15.0.6-4
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,554,644 kB
  • sloc: cpp: 5,922,452; ansic: 1,012,136; asm: 674,362; python: 191,568; objc: 73,855; f90: 42,327; lisp: 31,913; pascal: 11,973; javascript: 10,144; sh: 9,421; perl: 7,447; ml: 5,527; awk: 3,523; makefile: 2,520; xml: 885; cs: 573; fortran: 567
file content (20 lines) | stat: -rw-r--r-- 716 bytes parent folder | download | duplicates (36) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
; RUN: llc -mtriple=x86_64-linux < %s | FileCheck %s

; Commute the comparison to avoid a move.
; PR7500.

; CHECK-LABEL: a:
; CHECK-NOT: mov
; CHECK:     pcmpeqd
define <2 x double> @a(<2 x double>, <2 x double>) nounwind readnone {
entry:
  %tmp6 = bitcast <2 x double> %0 to <4 x i32>    ; <<4 x i32>> [#uses=2]
  %tmp4 = bitcast <2 x double> %1 to <4 x i32>    ; <<4 x i32>> [#uses=1]
  %cmp = icmp eq <4 x i32> %tmp6, %tmp4           ; <<4 x i1>> [#uses=1]
  %sext = sext <4 x i1> %cmp to <4 x i32>         ; <<4 x i32>> [#uses=1]
  %and = and <4 x i32> %tmp6, %sext               ; <<4 x i32>> [#uses=1]
  %tmp8 = bitcast <4 x i32> %and to <2 x double>  ; <<2 x double>> [#uses=1]
  ret <2 x double> %tmp8
}