mirrors/dynarmic
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

emit_x64_vector: Emit VPABSQ in EmitVectorAbs() for the 64-bit case if AVX-512VL is available

Browse source
This commit is contained in:
Lioncash 2018-05-03 12:46:13 -04:00 committed by MerryMage
parent d4ee878cbd
commit 0f067b7330
1 changed files with 10 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
src/backend_x64/emit_x64_vector.cpp
View file

@ -293,15 +293,18 @@ static void EmitVectorAbs(size_t esize, EmitContext& ctx, IR::Inst* inst, BlockO
code.psubd(data, temp);
}
break;
case 64: {
const Xbyak::Xmm temp = ctx.reg_alloc.ScratchXmm();
code.pshufd(temp, data, 0b11110101);
code.psrad(temp, 31);
code.pxor(data, temp);
code.psubq(data, temp);
case 64:
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX512VL)) {
code.vpabsq(data, data);
} else {
const Xbyak::Xmm temp = ctx.reg_alloc.ScratchXmm();
code.pshufd(temp, data, 0b11110101);
code.psrad(temp, 31);
code.pxor(data, temp);
code.psubq(data, temp);
}
break;
}
}
ctx.reg_alloc.DefineValue(inst, data);
}