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Added push(...) and pop(...) for SIMD registers #148

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Added push(...) and pop(...) for SIMD registers #148

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87 changes: 87 additions & 0 deletions src/cpu/x64/jit_generator.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -147,6 +147,8 @@ class jit_generator : public Xbyak::CodeGenerator, public c_compatible {

private:
const size_t xmm_len = 16;
const size_t ymm_len = 32;
const size_t zmm_len = 64;
#ifdef _WIN32
const size_t xmm_to_preserve_start = 6;
const size_t xmm_to_preserve = 10;
Expand Down Expand Up @@ -182,6 +184,91 @@ class jit_generator : public Xbyak::CodeGenerator, public c_compatible {

inline size_t get_size_of_abi_save_regs() { return size_of_abi_save_regs; }

using Xbyak::CodeGenerator::push;
using Xbyak::CodeGenerator::pop;

inline void push(const Xbyak::Xmm &xmm) {
if (xmm.isXMM()) {
sub(rsp, xmm_len);
uni_vmovdqu(ptr[rsp], xmm);
} else if (xmm.isYMM()) {
sub(rsp, ymm_len);
uni_vmovdqu(ptr[rsp], Xbyak::Ymm{xmm.getIdx()});
} else if (xmm.isZMM()) {
sub(rsp, zmm_len);
uni_vmovdqu(ptr[rsp], Xbyak::Zmm{xmm.getIdx()});
}
}

inline void push(const std::vector<Xbyak::Xmm> &xmms) {
std::vector<std::function<void()>> deferred_movs{};
size_t offset = 0;
for (size_t i = 0; i < xmms.size(); ++i) {
const auto& xmm = xmms[i];
if (xmm.isXMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(ptr[rsp + offset], xmm);
});
offset += xmm_len;
} else if (xmm.isYMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(ptr[rsp + offset], Xbyak::Ymm{xmm.getIdx()});
});
offset += ymm_len;
} else if (xmm.isZMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(ptr[rsp + offset], Xbyak::Zmm{xmm.getIdx()});
});
offset += zmm_len;
}
}
sub(rsp, offset);
for (const auto& def_mov : deferred_movs) {
def_mov();
}
}

inline void pop(const Xbyak::Xmm &xmm) {
if (xmm.isXMM()) {
uni_vmovdqu(xmm, ptr[rsp]);
add(rsp, xmm_len);
} else if (xmm.isYMM()) {
uni_vmovdqu(Xbyak::Ymm{xmm.getIdx()}, ptr[rsp]);
add(rsp, ymm_len);
} else if (xmm.isZMM()) {
uni_vmovdqu(Xbyak::Zmm{xmm.getIdx()}, ptr[rsp]);
add(rsp, zmm_len);
}
}

inline void pop(const std::vector<Xbyak::Xmm> &xmms) {
std::vector<std::function<void()>> deferred_movs{};
size_t offset = 0;
for (size_t i = 0; i < xmms.size(); ++i) {
const auto& xmm = xmms[i];
if (xmm.isXMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(xmm, ptr[rsp + offset]);
});
offset += xmm_len;
} else if (xmm.isYMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(Xbyak::Ymm{xmm.getIdx()}, ptr[rsp + offset]);
});
offset += ymm_len;
} else if (xmm.isZMM()) {
deferred_movs.emplace_back([this, offset, &xmm]() {
uni_vmovdqu(Xbyak::Zmm{xmm.getIdx()}, ptr[rsp + offset]);
});
offset += zmm_len;
}
}
for (const auto& def_mov : deferred_movs) {
def_mov();
}
add(rsp, offset);
}

void preamble() {
if (xmm_to_preserve) {
sub(rsp, xmm_to_preserve * xmm_len);
Expand Down