| ; 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) |
| |
