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[x64] Add kX64EmitAVX512* feature-flags

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Implements the detection of some baseline `AVX512` subsets and some common aliases into `X64EmitterFeatureFlags`.

So far, `AVX512{F,VL,BW,DQ}` are the only subsets of `AVX512` that are detected with this PR since I anticipate these are the ones that will actually be used a lot in the x64 backend. Some aliases are also implemented such as `kX64EmitAVX512Ortho` which is `AVX512F` and `AVX512VL` combined which are the two subsets of AVX512 required to allow for `AVX512` operations upon `ymm` and `xmm` registers.

These aliases can possibly be collapsed since we could just always require `AVX512VL` to be supported to allow for _any_ kind of `AVX512` to be used since we will practically always want to use `AVX512` on `xmm` registers at the very least as there is no use-case where we want to use the 512-bit `zmm` registers exclusively.
This commit is contained in:
Wunkolo
2021-12-28 18:11:44 -08:00
committed by Rick Gibbed
parent 1a8068b151
commit 5317907523
2 changed files with 16 additions and 0 deletions
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8
src/xenia/cpu/backend/x64/x64_emitter.cc
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@@ -81,6 +81,14 @@ X64Emitter::X64Emitter(X64Backend* backend, XbyakAllocator* allocator)
feature_flags_ |= cpu_.has(Xbyak::util::Cpu::tBMI2) ? kX64EmitBMI2 : 0;
feature_flags_ |= cpu_.has(Xbyak::util::Cpu::tF16C) ? kX64EmitF16C : 0;
feature_flags_ |= cpu_.has(Xbyak::util::Cpu::tMOVBE) ? kX64EmitMovbe : 0;
feature_flags_ |=
cpu_.has(Xbyak::util::Cpu::tAVX512F) ? kX64EmitAVX512F : 0;
feature_flags_ |=
cpu_.has(Xbyak::util::Cpu::tAVX512VL) ? kX64EmitAVX512VL : 0;
feature_flags_ |=
cpu_.has(Xbyak::util::Cpu::tAVX512BW) ? kX64EmitAVX512BW : 0;
feature_flags_ |=
cpu_.has(Xbyak::util::Cpu::tAVX512DQ) ? kX64EmitAVX512DQ : 0;
}
if (!cpu_.has(Xbyak::util::Cpu::tAVX)) {