File: swaps-le-3.ll

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-12
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,496,180 kB
  • sloc: cpp: 5,593,972; ansic: 986,872; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,538; xml: 953; cs: 573; fortran: 567
file content (24 lines) | stat: -rw-r--r-- 734 bytes parent folder | download | duplicates (16) 
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>, <2 x double>* @a, align 16
  %3 = fadd <2 x double> %0, %2
  store <2 x double> %3, <2 x double>* @b, align 16
  ret void
}

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