File: swaps-le-3.ll

package info (click to toggle)
llvm-toolchain-20 1%3A20.1.6-1~exp1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 2,111,304 kB
  • sloc: cpp: 7,438,677; ansic: 1,393,822; asm: 1,012,926; python: 241,650; f90: 86,635; objc: 75,479; lisp: 42,144; pascal: 17,286; sh: 10,027; ml: 5,082; perl: 4,730; awk: 3,523; makefile: 3,349; javascript: 2,251; xml: 892; fortran: 672
file content (24 lines) | stat: -rw-r--r-- 714 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s

; This test verifies that VSX swap optimization works for the
; doubleword splat idiom.

@a = external global <2 x double>, align 16
@b = external global <2 x double>, align 16

define void @test(double %s) {
entry:
  %0 = insertelement <2 x double> undef, double %s, i32 0
  %1 = shufflevector <2 x double> %0, <2 x double> undef, <2 x i32> zeroinitializer
  %2 = load <2 x double>, ptr @a, align 16
  %3 = fadd <2 x double> %0, %2
  store <2 x double> %3, ptr @b, align 16
  ret void
}

; CHECK-LABEL: @test
; CHECK-DAG: xxspltd
; CHECK-DAG: lxvd2x
; CHECK: xvadddp
; CHECK: stxvd2x
; CHECK-NOT: xxswapd