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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
%0 = bitcast <2 x i64>* %x to i8*
call void @llvm.lifetime.start.p0i8(i64 16, i8* %0)
%arrayidx = getelementptr inbounds <2 x i64>, <2 x i64>* %x, i64 0, i64 0
store <2 x i64> <i64 0, i64 1>, <2 x i64>* %x, align 16
call void @foo(i64* %arrayidx)
call void @llvm.lifetime.end.p0i8(i64 16, i8* %0)
ret void
}
; CHECK-LABEL: @bar
; CHECK: lxvd2x
; CHECK: stxvd2x
; CHECK-NOT: xxswapd
declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture)
declare void @foo(i64*)
declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
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