diff options
Diffstat (limited to 'llvm/test/CodeGen/PowerPC/swaps-le-4.ll')
| -rw-r--r-- | llvm/test/CodeGen/PowerPC/swaps-le-4.ll | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/PowerPC/swaps-le-4.ll b/llvm/test/CodeGen/PowerPC/swaps-le-4.ll new file mode 100644 index 00000000000..7d8239bd255 --- /dev/null +++ b/llvm/test/CodeGen/PowerPC/swaps-le-4.ll @@ -0,0 +1,27 @@ +; RUN: llc -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(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(i64 16, i8* %0) + ret void +} + +; CHECK-LABEL: @bar +; CHECK: lxvd2x +; CHECK: stxvd2x +; CHECK-NOT: xxswapd + +declare void @llvm.lifetime.start(i64, i8* nocapture) +declare void @foo(i64*) +declare void @llvm.lifetime.end(i64, i8* nocapture) + |
