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; 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
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