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common: Remove dependency on xbyak 

Xbyak is currently entirely unused. Rather than carting it along, remove
it and get rid of a dependency. If it's ever needed in the future, then
it can be re-added (and likely be more up to date at that point in
time).
pull/15/merge
Lioncash 7 years ago
parent
5af4160bf2
commit
3533d33ff5
6 changed files with 0 additions and 287 deletions
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  1. 3
      .gitmodules
  2. 9
      externals/CMakeLists.txt
  3. 1
      externals/xbyak
  4. 5
      src/common/CMakeLists.txt
  5. 222
      src/common/x64/xbyak_abi.h
  6. 47
      src/common/x64/xbyak_util.h

3
.gitmodules
View File

@ -13,9 +13,6 @@
[submodule "dynarmic"]
path = externals/dynarmic
url = https://github.com/MerryMage/dynarmic.git
[submodule "xbyak"]
path = externals/xbyak
url = https://github.com/herumi/xbyak.git
[submodule "fmt"]
path = externals/fmt
url = https://github.com/fmtlib/fmt.git

9
externals/CMakeLists.txt
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@ -9,7 +9,6 @@ target_include_directories(catch-single-include INTERFACE catch/single_include)
# Dynarmic
if (ARCHITECTURE_x86_64)
add_library(xbyak INTERFACE)
set(DYNARMIC_TESTS OFF)
set(DYNARMIC_NO_BUNDLED_FMT ON)
add_subdirectory(dynarmic)
@ -53,14 +52,6 @@ target_include_directories(unicorn-headers INTERFACE ./unicorn/include)
# SoundTouch
add_subdirectory(soundtouch)
# Xbyak
if (ARCHITECTURE_x86_64)
# Defined before "dynarmic" above
# add_library(xbyak INTERFACE)
target_include_directories(xbyak INTERFACE ./xbyak/xbyak)
target_compile_definitions(xbyak INTERFACE XBYAK_NO_OP_NAMES)
endif()
# Opus
add_subdirectory(opus)
target_include_directories(opus INTERFACE ./opus/include)

1
externals/xbyak

@ -1 +0,0 @@
Subproject commit 1de435ed04c8e74775804da944d176baf0ce56e2

5
src/common/CMakeLists.txt
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@ -95,14 +95,9 @@ if(ARCHITECTURE_x86_64)
PRIVATE
x64/cpu_detect.cpp
x64/cpu_detect.h
x64/xbyak_abi.h
x64/xbyak_util.h
)
endif()
create_target_directory_groups(common)
target_link_libraries(common PUBLIC Boost::boost fmt microprofile)
if (ARCHITECTURE_x86_64)
target_link_libraries(common PRIVATE xbyak)
endif()

222
src/common/x64/xbyak_abi.h
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@ -1,222 +0,0 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <initializer_list>
#include <xbyak.h>
#include "common/assert.h"
#include "common/bit_set.h"
namespace Common::X64 {
inline int RegToIndex(const Xbyak::Reg& reg) {
using Kind = Xbyak::Reg::Kind;
ASSERT_MSG((reg.getKind() & (Kind::REG | Kind::XMM)) != 0,
"RegSet only support GPRs and XMM registers.");
ASSERT_MSG(reg.getIdx() < 16, "RegSet only supports XXM0-15.");
return reg.getIdx() + (reg.getKind() == Kind::REG ? 0 : 16);
}
inline Xbyak::Reg64 IndexToReg64(int reg_index) {
ASSERT(reg_index < 16);
return Xbyak::Reg64(reg_index);
}
inline Xbyak::Xmm IndexToXmm(int reg_index) {
ASSERT(reg_index >= 16 && reg_index < 32);
return Xbyak::Xmm(reg_index - 16);
}
inline Xbyak::Reg IndexToReg(int reg_index) {
if (reg_index < 16) {
return IndexToReg64(reg_index);
} else {
return IndexToXmm(reg_index);
}
}
inline BitSet32 BuildRegSet(std::initializer_list<Xbyak::Reg> regs) {
BitSet32 bits;
for (const Xbyak::Reg& reg : regs) {
bits[RegToIndex(reg)] = true;
}
return bits;
}
const BitSet32 ABI_ALL_GPRS(0x0000FFFF);
const BitSet32 ABI_ALL_XMMS(0xFFFF0000);
#ifdef _WIN32
// Microsoft x64 ABI
const Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
const Xbyak::Reg ABI_PARAM1 = Xbyak::util::rcx;
const Xbyak::Reg ABI_PARAM2 = Xbyak::util::rdx;
const Xbyak::Reg ABI_PARAM3 = Xbyak::util::r8;
const Xbyak::Reg ABI_PARAM4 = Xbyak::util::r9;
const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
// GPRs
Xbyak::util::rcx,
Xbyak::util::rdx,
Xbyak::util::r8,
Xbyak::util::r9,
Xbyak::util::r10,
Xbyak::util::r11,
// XMMs
Xbyak::util::xmm0,
Xbyak::util::xmm1,
Xbyak::util::xmm2,
Xbyak::util::xmm3,
Xbyak::util::xmm4,
Xbyak::util::xmm5,
});
const BitSet32 ABI_ALL_CALLEE_SAVED = BuildRegSet({
// GPRs
Xbyak::util::rbx,
Xbyak::util::rsi,
Xbyak::util::rdi,
Xbyak::util::rbp,
Xbyak::util::r12,
Xbyak::util::r13,
Xbyak::util::r14,
Xbyak::util::r15,
// XMMs
Xbyak::util::xmm6,
Xbyak::util::xmm7,
Xbyak::util::xmm8,
Xbyak::util::xmm9,
Xbyak::util::xmm10,
Xbyak::util::xmm11,
Xbyak::util::xmm12,
Xbyak::util::xmm13,
Xbyak::util::xmm14,
Xbyak::util::xmm15,
});
constexpr std::size_t ABI_SHADOW_SPACE = 0x20;
#else
// System V x86-64 ABI
const Xbyak::Reg ABI_RETURN = Xbyak::util::rax;
const Xbyak::Reg ABI_PARAM1 = Xbyak::util::rdi;
const Xbyak::Reg ABI_PARAM2 = Xbyak::util::rsi;
const Xbyak::Reg ABI_PARAM3 = Xbyak::util::rdx;
const Xbyak::Reg ABI_PARAM4 = Xbyak::util::rcx;
const BitSet32 ABI_ALL_CALLER_SAVED = BuildRegSet({
// GPRs
Xbyak::util::rcx,
Xbyak::util::rdx,
Xbyak::util::rdi,
Xbyak::util::rsi,
Xbyak::util::r8,
Xbyak::util::r9,
Xbyak::util::r10,
Xbyak::util::r11,
// XMMs
Xbyak::util::xmm0,
Xbyak::util::xmm1,
Xbyak::util::xmm2,
Xbyak::util::xmm3,
Xbyak::util::xmm4,
Xbyak::util::xmm5,
Xbyak::util::xmm6,
Xbyak::util::xmm7,
Xbyak::util::xmm8,
Xbyak::util::xmm9,
Xbyak::util::xmm10,
Xbyak::util::xmm11,
Xbyak::util::xmm12,
Xbyak::util::xmm13,
Xbyak::util::xmm14,
Xbyak::util::xmm15,
});
const BitSet32 ABI_ALL_CALLEE_SAVED = BuildRegSet({
// GPRs
Xbyak::util::rbx,
Xbyak::util::rbp,
Xbyak::util::r12,
Xbyak::util::r13,
Xbyak::util::r14,
Xbyak::util::r15,
});
constexpr std::size_t ABI_SHADOW_SPACE = 0;
#endif
inline void ABI_CalculateFrameSize(BitSet32 regs, std::size_t rsp_alignment,
std::size_t needed_frame_size, s32* out_subtraction,
s32* out_xmm_offset) {
int count = (regs & ABI_ALL_GPRS).Count();
rsp_alignment -= count * 8;
std::size_t subtraction = 0;
int xmm_count = (regs & ABI_ALL_XMMS).Count();
if (xmm_count) {
// If we have any XMMs to save, we must align the stack here.
subtraction = rsp_alignment & 0xF;
}
subtraction += 0x10 * xmm_count;
std::size_t xmm_base_subtraction = subtraction;
subtraction += needed_frame_size;
subtraction += ABI_SHADOW_SPACE;
// Final alignment.
rsp_alignment -= subtraction;
subtraction += rsp_alignment & 0xF;
*out_subtraction = (s32)subtraction;
*out_xmm_offset = (s32)(subtraction - xmm_base_subtraction);
}
inline std::size_t ABI_PushRegistersAndAdjustStack(Xbyak::CodeGenerator& code, BitSet32 regs,
std::size_t rsp_alignment,
std::size_t needed_frame_size = 0) {
s32 subtraction, xmm_offset;
ABI_CalculateFrameSize(regs, rsp_alignment, needed_frame_size, &subtraction, &xmm_offset);
for (int reg_index : (regs & ABI_ALL_GPRS)) {
code.push(IndexToReg64(reg_index));
}
if (subtraction != 0) {
code.sub(code.rsp, subtraction);
}
for (int reg_index : (regs & ABI_ALL_XMMS)) {
code.movaps(code.xword[code.rsp + xmm_offset], IndexToXmm(reg_index));
xmm_offset += 0x10;
}
return ABI_SHADOW_SPACE;
}
inline void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, BitSet32 regs,
std::size_t rsp_alignment,
std::size_t needed_frame_size = 0) {
s32 subtraction, xmm_offset;
ABI_CalculateFrameSize(regs, rsp_alignment, needed_frame_size, &subtraction, &xmm_offset);
for (int reg_index : (regs & ABI_ALL_XMMS)) {
code.movaps(IndexToXmm(reg_index), code.xword[code.rsp + xmm_offset]);
xmm_offset += 0x10;
}
if (subtraction != 0) {
code.add(code.rsp, subtraction);
}
// GPRs need to be popped in reverse order
for (int reg_index = 15; reg_index >= 0; reg_index--) {
if (regs[reg_index]) {
code.pop(IndexToReg64(reg_index));
}
}
}
} // namespace Common::X64

47
src/common/x64/xbyak_util.h
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@ -1,47 +0,0 @@
// Copyright 2016 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <type_traits>
#include <xbyak.h>
#include "common/x64/xbyak_abi.h"
namespace Common::X64 {
// Constants for use with cmpps/cmpss
enum {
CMP_EQ = 0,
CMP_LT = 1,
CMP_LE = 2,
CMP_UNORD = 3,
CMP_NEQ = 4,
CMP_NLT = 5,
CMP_NLE = 6,
CMP_ORD = 7,
};
inline bool IsWithin2G(uintptr_t ref, uintptr_t target) {
u64 distance = target - (ref + 5);
return !(distance >= 0x8000'0000ULL && distance <= ~0x8000'0000ULL);
}
inline bool IsWithin2G(const Xbyak::CodeGenerator& code, uintptr_t target) {
return IsWithin2G(reinterpret_cast<uintptr_t>(code.getCurr()), target);
}
template <typename T>
inline void CallFarFunction(Xbyak::CodeGenerator& code, const T f) {
static_assert(std::is_pointer_v<T>, "Argument must be a (function) pointer.");
std::size_t addr = reinterpret_cast<std::size_t>(f);
if (IsWithin2G(code, addr)) {
code.call(f);
} else {
// ABI_RETURN is a safe temp register to use before a call
code.mov(ABI_RETURN, addr);
code.call(ABI_RETURN);
}
}
} // namespace Common::X64
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