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author | 2019-10-29 10:17:53 +0000 | |
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committer | 2019-10-31 09:19:22 +0000 | |
commit | 7cf5607f472020711e36eedbbfebb25b40d3f90e (patch) | |
tree | 71f30133f4650656911f2fb72e3b8d203b355635 /compiler/utils/x86/assembler_x86.cc | |
parent | d55b844e39c4d5eb1a56de6cb95c891659f8a27f (diff) |
Revert^2 "Implement Dot Product Vectorization for x86"
This reverts commit b8c884e5f22390386b202459ab55ef3046631e42.
And fixes a codegen bug (the reason why the original CL was
reverted).
Test: 684-checker-simd-dotprod
Test: DEX2OAT_HOST_INSTRUCTION_SET_FEATURES="sse4.1" test.py --host
Test: test.py --host --jit --gcstress
Change-Id: Ibef925d1037abc9cb5f3d4dbd79f1d1eceae2f71
Signed-off-by: Shalini Salomi Bodapati <shalini.salomi.bodapati@intel.com>
Diffstat (limited to 'compiler/utils/x86/assembler_x86.cc')
-rw-r--r-- | compiler/utils/x86/assembler_x86.cc | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/compiler/utils/x86/assembler_x86.cc b/compiler/utils/x86/assembler_x86.cc index 166aec81a7..55f7691514 100644 --- a/compiler/utils/x86/assembler_x86.cc +++ b/compiler/utils/x86/assembler_x86.cc @@ -2268,6 +2268,20 @@ void X86Assembler::pmaddwd(XmmRegister dst, XmmRegister src) { } +void X86Assembler::vpmaddwd(XmmRegister dst, XmmRegister src1, XmmRegister src2) { + DCHECK(CpuHasAVXorAVX2FeatureFlag()); + AssemblerBuffer::EnsureCapacity ensured(&buffer_); + uint8_t ByteZero = 0x00, ByteOne = 0x00; + ByteZero = EmitVexPrefixByteZero(/* is_twobyte_form=*/ true); + X86ManagedRegister vvvv_reg = X86ManagedRegister::FromXmmRegister(src1); + ByteOne = EmitVexPrefixByteOne(/*R=*/ false, vvvv_reg, SET_VEX_L_128, SET_VEX_PP_66); + EmitUint8(ByteZero); + EmitUint8(ByteOne); + EmitUint8(0xF5); + EmitXmmRegisterOperand(dst, src2); +} + + void X86Assembler::phaddw(XmmRegister dst, XmmRegister src) { AssemblerBuffer::EnsureCapacity ensured(&buffer_); EmitUint8(0x66); |