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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 when an implicit
; subregister is present (in this case, in the XXPERMDI associated with
; the store).
define void @bar() {
entry:
%x = alloca <2 x i64>, align 16
call void @llvm.lifetime.start.p0(i64 16, ptr %x)
store <2 x i64> <i64 0, i64 1>, ptr %x, align 16
call void @foo(ptr %x)
call void @llvm.lifetime.end.p0(i64 16, ptr %x)
ret void
}
; CHECK-LABEL: @bar
; CHECK: lxvd2x
; CHECK: stxvd2x
; CHECK-NOT: xxswapd
declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
declare void @foo(ptr)
declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
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