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| author | Tanya Lattner <tonic@nondot.org> | 2011-05-18 21:44:54 +0000 |
|---|---|---|
| committer | Tanya Lattner <tonic@nondot.org> | 2011-05-18 21:44:54 +0000 |
| commit | db28247522af0a6190c9cab8dc32e7d4df9f5509 (patch) | |
| tree | a3f04ea5338123d696227839a6b50f6b735e9084 | |
| parent | 10a818809df9fe1c171451d0bb8213716b12638f (diff) | |
| download | llvm-db28247522af0a6190c9cab8dc32e7d4df9f5509.tar.gz llvm-db28247522af0a6190c9cab8dc32e7d4df9f5509.tar.bz2 llvm-db28247522af0a6190c9cab8dc32e7d4df9f5509.tar.xz | |
Handle perfect shuffle case that generates a vrev for vectors of floats.
Add test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131582 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 3 | ||||
| -rw-r--r-- | test/CodeGen/ARM/vrev.ll | 15 |
2 files changed, 17 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 94f220baf0..802c99985a 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -4184,7 +4184,8 @@ static SDValue GeneratePerfectShuffle(unsigned PFEntry, SDValue LHS, default: llvm_unreachable("Unknown shuffle opcode!"); case OP_VREV: // VREV divides the vector in half and swaps within the half. - if (VT.getVectorElementType() == MVT::i32) + if (VT.getVectorElementType() == MVT::i32 || + VT.getVectorElementType() == MVT::f32) return DAG.getNode(ARMISD::VREV64, dl, VT, OpLHS); // vrev <4 x i16> -> VREV32 if (VT.getVectorElementType() == MVT::i16) diff --git a/test/CodeGen/ARM/vrev.ll b/test/CodeGen/ARM/vrev.ll index 0f0ea2b932..34acd1678a 100644 --- a/test/CodeGen/ARM/vrev.ll +++ b/test/CodeGen/ARM/vrev.ll @@ -163,3 +163,18 @@ entry: store <2 x i16> %tmp11, <2 x i16>* %dst, align 4 ret void } + +; Test vrev of float4 +define void @float_vrev64(float* nocapture %source, <4 x float>* nocapture %dest) nounwind noinline ssp { +; CHECK: float_vrev64 +; CHECK: vext.32 +; CHECK: vrev64.32 +entry: + %0 = bitcast float* %source to <4 x float>* + %tmp2 = load <4 x float>* %0, align 4 + %tmp5 = shufflevector <4 x float> <float 0.000000e+00, float undef, float undef, float undef>, <4 x float> %tmp2, <4 x i32> <i32 0, i32 7, i32 0, i32 0> + %arrayidx8 = getelementptr inbounds <4 x float>* %dest, i32 11 + store <4 x float> %tmp5, <4 x float>* %arrayidx8, align 4 + ret void +} + |