diff options
Diffstat (limited to 'llvm/test/CodeGen/ARM64/simd-scalar-to-vector.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM64/simd-scalar-to-vector.ll | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/ARM64/simd-scalar-to-vector.ll b/llvm/test/CodeGen/ARM64/simd-scalar-to-vector.ll new file mode 100644 index 00000000000..fe0c6fedddb --- /dev/null +++ b/llvm/test/CodeGen/ARM64/simd-scalar-to-vector.ll @@ -0,0 +1,17 @@ +; RUN: llc < %s -march=arm64 -arm64-neon-syntax=apple | FileCheck %s + +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 + %tmp = tail call i32 @llvm.arm64.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.arm64.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.arm64.neon.rshrn.v8i8(<8 x i16>, i32) nounwind readnone +declare i32 @llvm.arm64.neon.uaddlv.i32.v16i8(<16 x i8>) nounwind readnone |
