externals: Update Xbyak to 5.96
I made a request on the Xbyak issue tracker to allow some constructors to be constexpr in order to avoid static constructors from needing to execute for some of our register constants. This request was implemented, so this updates Xbyak so that we can make use of it.
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Lioncash
FearlessTobi
parent
045d20e076
commit
9c08409e0e
4 changed files with 63 additions and 56 deletions
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@ -4,14 +4,14 @@
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#pragma once
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#include <bitset>
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#include <initializer_list>
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#include <xbyak.h>
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#include "common/assert.h"
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#include "common/bit_set.h"
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namespace Common::X64 {
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inline std::size_t RegToIndex(const Xbyak::Reg& reg) {
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constexpr std::size_t RegToIndex(const Xbyak::Reg& reg) {
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using Kind = Xbyak::Reg::Kind;
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ASSERT_MSG((reg.getKind() & (Kind::REG | Kind::XMM)) != 0,
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"RegSet only support GPRs and XMM registers.");
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@ -19,17 +19,17 @@ inline std::size_t RegToIndex(const Xbyak::Reg& reg) {
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return reg.getIdx() + (reg.getKind() == Kind::REG ? 0 : 16);
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}
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inline Xbyak::Reg64 IndexToReg64(std::size_t reg_index) {
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constexpr Xbyak::Reg64 IndexToReg64(std::size_t reg_index) {
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ASSERT(reg_index < 16);
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return Xbyak::Reg64(static_cast<int>(reg_index));
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}
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inline Xbyak::Xmm IndexToXmm(std::size_t reg_index) {
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constexpr Xbyak::Xmm IndexToXmm(std::size_t reg_index) {
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ASSERT(reg_index >= 16 && reg_index < 32);
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return Xbyak::Xmm(static_cast<int>(reg_index - 16));
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}
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inline Xbyak::Reg IndexToReg(std::size_t reg_index) {
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constexpr Xbyak::Reg IndexToReg(std::size_t reg_index) {
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if (reg_index < 16) {
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return IndexToReg64(reg_index);
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} else {
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@ -37,27 +37,27 @@ inline Xbyak::Reg IndexToReg(std::size_t reg_index) {
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}
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}
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inline BitSet32 BuildRegSet(std::initializer_list<Xbyak::Reg> regs) {
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BitSet32 bits;
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inline std::bitset<32> BuildRegSet(std::initializer_list<Xbyak::Reg> regs) {
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std::bitset<32> bits;
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for (const Xbyak::Reg& reg : regs) {
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bits[RegToIndex(reg)] = true;
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}
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return bits;
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}
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const BitSet32 ABI_ALL_GPRS(0x0000FFFF);
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const BitSet32 ABI_ALL_XMMS(0xFFFF0000);
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constexpr inline std::bitset<32> ABI_ALL_GPRS(0x0000FFFF);
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constexpr inline std::bitset<32> ABI_ALL_XMMS(0xFFFF0000);
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#ifdef _WIN32
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// Microsoft x64 ABI
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const Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
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const Xbyak::Reg ABI_PARAM1 = Xbyak::util::rcx;
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const Xbyak::Reg ABI_PARAM2 = Xbyak::util::rdx;
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const Xbyak::Reg ABI_PARAM3 = Xbyak::util::r8;
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const Xbyak::Reg ABI_PARAM4 = Xbyak::util::r9;
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constexpr inline Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
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constexpr inline Xbyak::Reg ABI_PARAM1 = Xbyak::util::rcx;
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constexpr inline Xbyak::Reg ABI_PARAM2 = Xbyak::util::rdx;
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constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::r8;
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constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::r9;
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const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
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const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
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// GPRs
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Xbyak::util::rcx,
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Xbyak::util::rdx,
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@ -74,7 +74,7 @@ const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
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Xbyak::util::xmm5,
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});
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const BitSet32 ABI_ALL_CALLEE_SAVED = BuildRegSet({
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const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({
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// GPRs
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Xbyak::util::rbx,
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Xbyak::util::rsi,
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@ -102,13 +102,13 @@ constexpr std::size_t ABI_SHADOW_SPACE = 0x20;
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#else
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// System V x86-64 ABI
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const Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
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const Xbyak::Reg ABI_PARAM1 = Xbyak::util::rdi;
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const Xbyak::Reg ABI_PARAM2 = Xbyak::util::rsi;
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const Xbyak::Reg ABI_PARAM3 = Xbyak::util::rdx;
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const Xbyak::Reg ABI_PARAM4 = Xbyak::util::rcx;
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constexpr inline Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
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constexpr inline Xbyak::Reg ABI_PARAM1 = Xbyak::util::rdi;
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constexpr inline Xbyak::Reg ABI_PARAM2 = Xbyak::util::rsi;
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constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::rdx;
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constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::rcx;
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const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
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const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
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// GPRs
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Xbyak::util::rcx,
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Xbyak::util::rdx,
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@ -137,7 +137,7 @@ const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
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Xbyak::util::xmm15,
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});
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const BitSet32 ABI_ALL_CALLEE_SAVED = BuildRegSet({
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const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({
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// GPRs
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Xbyak::util::rbx,
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Xbyak::util::rbp,
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@ -156,12 +156,12 @@ struct ABIFrameInfo {
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s32 xmm_offset;
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};
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inline ABIFrameInfo ABI_CalculateFrameSize(BitSet32 regs, std::size_t rsp_alignment,
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inline ABIFrameInfo ABI_CalculateFrameSize(std::bitset<32> regs, std::size_t rsp_alignment,
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std::size_t needed_frame_size) {
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int count = (regs & ABI_ALL_GPRS).Count();
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int count = (regs & ABI_ALL_GPRS).count();
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rsp_alignment -= count * 8;
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std::size_t subtraction = 0;
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int xmm_count = (regs & ABI_ALL_XMMS).Count();
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int xmm_count = (regs & ABI_ALL_XMMS).count();
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if (xmm_count) {
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// If we have any XMMs to save, we must align the stack here.
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subtraction = rsp_alignment & 0xF;
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@ -178,35 +178,41 @@ inline ABIFrameInfo ABI_CalculateFrameSize(BitSet32 regs, std::size_t rsp_alignm
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static_cast<s32>(subtraction - xmm_base_subtraction)};
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}
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inline std::size_t ABI_PushRegistersAndAdjustStack(Xbyak::CodeGenerator& code, BitSet32 regs,
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inline std::size_t ABI_PushRegistersAndAdjustStack(Xbyak::CodeGenerator& code, std::bitset<32> regs,
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std::size_t rsp_alignment,
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std::size_t needed_frame_size = 0) {
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auto frame_info = ABI_CalculateFrameSize(regs, rsp_alignment, needed_frame_size);
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for (int reg_index : (regs & ABI_ALL_GPRS)) {
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code.push(IndexToReg64(reg_index));
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for (std::size_t i = 0; i < regs.size(); ++i) {
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if (regs[i] && ABI_ALL_GPRS[i]) {
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code.push(IndexToReg64(i));
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}
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}
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if (frame_info.subtraction != 0) {
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code.sub(code.rsp, frame_info.subtraction);
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}
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for (int reg_index : (regs & ABI_ALL_XMMS)) {
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code.movaps(code.xword[code.rsp + frame_info.xmm_offset], IndexToXmm(reg_index));
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frame_info.xmm_offset += 0x10;
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for (std::size_t i = 0; i < regs.size(); ++i) {
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if (regs[i] && ABI_ALL_XMMS[i]) {
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code.movaps(code.xword[code.rsp + frame_info.xmm_offset], IndexToXmm(i));
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frame_info.xmm_offset += 0x10;
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}
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}
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return ABI_SHADOW_SPACE;
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}
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inline void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, BitSet32 regs,
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inline void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, std::bitset<32> regs,
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std::size_t rsp_alignment,
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std::size_t needed_frame_size = 0) {
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auto frame_info = ABI_CalculateFrameSize(regs, rsp_alignment, needed_frame_size);
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for (int reg_index : (regs & ABI_ALL_XMMS)) {
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code.movaps(IndexToXmm(reg_index), code.xword[code.rsp + frame_info.xmm_offset]);
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frame_info.xmm_offset += 0x10;
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for (std::size_t i = 0; i < regs.size(); ++i) {
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if (regs[i] && ABI_ALL_XMMS[i]) {
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code.movaps(IndexToXmm(i), code.xword[code.rsp + frame_info.xmm_offset]);
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frame_info.xmm_offset += 0x10;
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}
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}
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if (frame_info.subtraction != 0) {
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