| Bill Schmidt | a1c3005 | 2015-07-02 19:01:22 +0000 | [diff] [blame] | 1 | ; RUN: llc -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 | |
| 7 | define void @bar() { |
| 8 | entry: |
| 9 | %x = alloca <2 x i64>, align 16 |
| 10 | %0 = bitcast <2 x i64>* %x to i8* |
| 11 | call void @llvm.lifetime.start(i64 16, i8* %0) |
| 12 | %arrayidx = getelementptr inbounds <2 x i64>, <2 x i64>* %x, i64 0, i64 0 |
| 13 | store <2 x i64> <i64 0, i64 1>, <2 x i64>* %x, align 16 |
| 14 | call void @foo(i64* %arrayidx) |
| 15 | call void @llvm.lifetime.end(i64 16, i8* %0) |
| 16 | ret void |
| 17 | } |
| 18 | |
| 19 | ; CHECK-LABEL: @bar |
| 20 | ; CHECK: lxvd2x |
| 21 | ; CHECK: stxvd2x |
| 22 | ; CHECK-NOT: xxswapd |
| 23 | |
| 24 | declare void @llvm.lifetime.start(i64, i8* nocapture) |
| 25 | declare void @foo(i64*) |
| 26 | declare void @llvm.lifetime.end(i64, i8* nocapture) |
| 27 | |