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abi: Emit AVX instructions where able

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Smaller codesize.
This commit is contained in:
MerryMage 2018-09-28 21:12:17 +01:00
parent 7c0378f56d
commit e2358af5ef
2 changed files with 27 additions and 16 deletions
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25
src/backend/x64/abi.cpp
View file

@ -20,6 +20,7 @@
#include <xbyak.h> #include <xbyak.h>
#include "backend/x64/abi.h" #include "backend/x64/abi.h"
#include "backend/x64/block_of_code.h"
#include "common/common_types.h" #include "common/common_types.h"
#include "common/iterator_util.h" #include "common/iterator_util.h"
@ -58,7 +59,7 @@ static FrameInfo CalculateFrameInfo(size_t num_gprs, size_t num_xmms, size_t fra
} }
template<typename RegisterArrayT> template<typename RegisterArrayT>
void ABI_PushRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size, const RegisterArrayT& regs) { void ABI_PushRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size, const RegisterArrayT& regs) {
using namespace Xbyak::util; using namespace Xbyak::util;
const size_t num_gprs = std::count_if(regs.begin(), regs.end(), HostLocIsGPR); const size_t num_gprs = std::count_if(regs.begin(), regs.end(), HostLocIsGPR);
@ -79,14 +80,18 @@ void ABI_PushRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_si
size_t xmm_offset = frame_info.xmm_offset; size_t xmm_offset = frame_info.xmm_offset;
for (HostLoc xmm : regs) { for (HostLoc xmm : regs) {
if (HostLocIsXMM(xmm)) { if (HostLocIsXMM(xmm)) {
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX)) {
code.vmovaps(code.xword[rsp + xmm_offset], HostLocToXmm(xmm));
} else {
code.movaps(code.xword[rsp + xmm_offset], HostLocToXmm(xmm)); code.movaps(code.xword[rsp + xmm_offset], HostLocToXmm(xmm));
}
xmm_offset += XMM_SIZE; xmm_offset += XMM_SIZE;
} }
} }
} }
template<typename RegisterArrayT> template<typename RegisterArrayT>
void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size, const RegisterArrayT& regs) { void ABI_PopRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size, const RegisterArrayT& regs) {
using namespace Xbyak::util; using namespace Xbyak::util;
const size_t num_gprs = std::count_if(regs.begin(), regs.end(), HostLocIsGPR); const size_t num_gprs = std::count_if(regs.begin(), regs.end(), HostLocIsGPR);
@ -97,7 +102,11 @@ void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_siz
size_t xmm_offset = frame_info.xmm_offset; size_t xmm_offset = frame_info.xmm_offset;
for (HostLoc xmm : regs) { for (HostLoc xmm : regs) {
if (HostLocIsXMM(xmm)) { if (HostLocIsXMM(xmm)) {
if (code.DoesCpuSupport(Xbyak::util::Cpu::tAVX)) {
code.vmovaps(HostLocToXmm(xmm), code.xword[rsp + xmm_offset]);
} else {
code.movaps(HostLocToXmm(xmm), code.xword[rsp + xmm_offset]); code.movaps(HostLocToXmm(xmm), code.xword[rsp + xmm_offset]);
}
xmm_offset += XMM_SIZE; xmm_offset += XMM_SIZE;
} }
} }
@ -113,29 +122,29 @@ void ABI_PopRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_siz
} }
} }
void ABI_PushCalleeSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size) { void ABI_PushCalleeSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size) {
ABI_PushRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLEE_SAVE); ABI_PushRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLEE_SAVE);
} }
void ABI_PopCalleeSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size) { void ABI_PopCalleeSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size) {
ABI_PopRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLEE_SAVE); ABI_PopRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLEE_SAVE);
} }
void ABI_PushCallerSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size) { void ABI_PushCallerSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size) {
ABI_PushRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLER_SAVE); ABI_PushRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLER_SAVE);
} }
void ABI_PopCallerSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size) { void ABI_PopCallerSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size) {
ABI_PopRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLER_SAVE); ABI_PopRegistersAndAdjustStack(code, frame_size, ABI_ALL_CALLER_SAVE);
} }
void ABI_PushCallerSaveRegistersAndAdjustStackExcept(Xbyak::CodeGenerator& code, HostLoc exception) { void ABI_PushCallerSaveRegistersAndAdjustStackExcept(BlockOfCode& code, HostLoc exception) {
std::vector<HostLoc> regs; std::vector<HostLoc> regs;
std::remove_copy(ABI_ALL_CALLER_SAVE.begin(), ABI_ALL_CALLER_SAVE.end(), std::back_inserter(regs), exception); std::remove_copy(ABI_ALL_CALLER_SAVE.begin(), ABI_ALL_CALLER_SAVE.end(), std::back_inserter(regs), exception);
ABI_PushRegistersAndAdjustStack(code, 0, regs); ABI_PushRegistersAndAdjustStack(code, 0, regs);
} }
void ABI_PopCallerSaveRegistersAndAdjustStackExcept(Xbyak::CodeGenerator& code, HostLoc exception) { void ABI_PopCallerSaveRegistersAndAdjustStackExcept(BlockOfCode& code, HostLoc exception) {
std::vector<HostLoc> regs; std::vector<HostLoc> regs;
std::remove_copy(ABI_ALL_CALLER_SAVE.begin(), ABI_ALL_CALLER_SAVE.end(), std::back_inserter(regs), exception); std::remove_copy(ABI_ALL_CALLER_SAVE.begin(), ABI_ALL_CALLER_SAVE.end(), std::back_inserter(regs), exception);
ABI_PopRegistersAndAdjustStack(code, 0, regs); ABI_PopRegistersAndAdjustStack(code, 0, regs);

14
src/backend/x64/abi.h
View file

@ -11,6 +11,8 @@
namespace Dynarmic::BackendX64 { namespace Dynarmic::BackendX64 {
class BlockOfCode;
#ifdef _WIN32 #ifdef _WIN32
constexpr HostLoc ABI_RETURN = HostLoc::RAX; constexpr HostLoc ABI_RETURN = HostLoc::RAX;
@ -111,12 +113,12 @@ constexpr size_t ABI_SHADOW_SPACE = 0; // bytes
static_assert(ABI_ALL_CALLER_SAVE.size() + ABI_ALL_CALLEE_SAVE.size() == 31, "Invalid total number of registers"); static_assert(ABI_ALL_CALLER_SAVE.size() + ABI_ALL_CALLEE_SAVE.size() == 31, "Invalid total number of registers");
void ABI_PushCalleeSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size = 0); void ABI_PushCalleeSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size = 0);
void ABI_PopCalleeSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size = 0); void ABI_PopCalleeSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size = 0);
void ABI_PushCallerSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size = 0); void ABI_PushCallerSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size = 0);
void ABI_PopCallerSaveRegistersAndAdjustStack(Xbyak::CodeGenerator& code, size_t frame_size = 0); void ABI_PopCallerSaveRegistersAndAdjustStack(BlockOfCode& code, size_t frame_size = 0);
void ABI_PushCallerSaveRegistersAndAdjustStackExcept(Xbyak::CodeGenerator& code, HostLoc exception); void ABI_PushCallerSaveRegistersAndAdjustStackExcept(BlockOfCode& code, HostLoc exception);
void ABI_PopCallerSaveRegistersAndAdjustStackExcept(Xbyak::CodeGenerator& code, HostLoc exception); void ABI_PopCallerSaveRegistersAndAdjustStackExcept(BlockOfCode& code, HostLoc exception);
} // namespace Dynarmic::BackendX64 } // namespace Dynarmic::BackendX64