1; RUN: llc -verify-machineinstrs -mcpu=pwr8 -mtriple=powerpc64le-unknown-linux-gnu -O3 < %s | FileCheck %s
2
3; This test verifies that VSX swap optimization works for the
4; doubleword splat idiom.
5
6@a = external global <2 x double>, align 16
7@b = external global <2 x double>, align 16
8
9define void @test(double %s) {
10entry:
11  %0 = insertelement <2 x double> undef, double %s, i32 0
12  %1 = shufflevector <2 x double> %0, <2 x double> undef, <2 x i32> zeroinitializer
13  %2 = load <2 x double>, <2 x double>* @a, align 16
14  %3 = fadd <2 x double> %0, %2
15  store <2 x double> %3, <2 x double>* @b, align 16
16  ret void
17}
18
19; CHECK-LABEL: @test
20; CHECK-DAG: xxspltd
21; CHECK-DAG: lxvd2x
22; CHECK: xvadddp
23; CHECK: stxvd2x
24; CHECK-NOT: xxswapd
25