diff options
Diffstat (limited to 'llvm/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll')
| -rw-r--r-- | llvm/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll b/llvm/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll new file mode 100644 index 00000000000..aed39e7ed8c --- /dev/null +++ b/llvm/test/CodeGen/AArch64/arm64-simd-scalar-to-vector.ll @@ -0,0 +1,22 @@ +; RUN: llc < %s -march=arm64 -aarch64-neon-syntax=apple -mcpu=cyclone | FileCheck %s +; RUN: llc < %s -march=arm64 -aarch64-neon-syntax=apple -O0 -mcpu=cyclone | FileCheck %s --check-prefix=CHECK-FAST + +define <16 x i8> @foo(<16 x i8> %a) nounwind optsize readnone ssp { +; CHECK: uaddlv.16b h0, v0 +; CHECK: rshrn.8b v0, v0, #4 +; CHECK: dup.16b v0, v0[0] +; CHECK: ret + +; CHECK-FAST: uaddlv.16b +; CHECK-FAST: rshrn.8b +; CHECK-FAST: dup.16b + %tmp = tail call i32 @llvm.aarch64.neon.uaddlv.i32.v16i8(<16 x i8> %a) nounwind + %tmp1 = trunc i32 %tmp to i16 + %tmp2 = insertelement <8 x i16> undef, i16 %tmp1, i32 0 + %tmp3 = tail call <8 x i8> @llvm.aarch64.neon.rshrn.v8i8(<8 x i16> %tmp2, i32 4) + %tmp4 = shufflevector <8 x i8> %tmp3, <8 x i8> undef, <16 x i32> zeroinitializer + ret <16 x i8> %tmp4 +} + +declare <8 x i8> @llvm.aarch64.neon.rshrn.v8i8(<8 x i16>, i32) nounwind readnone +declare i32 @llvm.aarch64.neon.uaddlv.i32.v16i8(<16 x i8>) nounwind readnone |
