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 when an implicit 4; subregister is present (in this case, in the XXPERMDI associated with 5; the store). 6 7define void @bar() { 8entry: 9 %x = alloca <2 x i64>, align 16 10 call void @llvm.lifetime.start.p0(i64 16, ptr %x) 11 store <2 x i64> <i64 0, i64 1>, ptr %x, align 16 12 call void @foo(ptr %x) 13 call void @llvm.lifetime.end.p0(i64 16, ptr %x) 14 ret void 15} 16 17; CHECK-LABEL: @bar 18; CHECK: lxvd2x 19; CHECK: stxvd2x 20; CHECK-NOT: xxswapd 21 22declare void @llvm.lifetime.start.p0(i64, ptr nocapture) 23declare void @foo(ptr) 24declare void @llvm.lifetime.end.p0(i64, ptr nocapture) 25 26