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Merge pull request #2884 from lioncash/emitter 

x64Emitter: Minor cleanup
This commit is contained in:
Markus Wick 2015-08-21 13:03:51 +02:00
parent 5f628749ff a59f00a5e4
commit c325c310d6
2 changed files with 2 additions and 165 deletions
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133
Source/Core/Common/x64Emitter.cpp
View File

@ -473,30 +473,6 @@ void XEmitter::SetJumpTarget(const FixupBranch& branch)
}
}
// INC/DEC considered harmful on newer CPUs due to partial flag set.
// Use ADD, SUB instead.
/*
void XEmitter::INC(int bits, OpArg arg)
{
if (arg.IsImm()) _assert_msg_(DYNA_REC, 0, "INC - Imm argument");
arg.operandReg = 0;
if (bits == 16) {Write8(0x66);}
arg.WriteREX(this, bits, bits);
Write8(bits == 8 ? 0xFE : 0xFF);
arg.WriteRest(this);
}
void XEmitter::DEC(int bits, OpArg arg)
{
if (arg.IsImm()) _assert_msg_(DYNA_REC, 0, "DEC - Imm argument");
arg.operandReg = 1;
if (bits == 16) {Write8(0x66);}
arg.WriteREX(this, bits, bits);
Write8(bits == 8 ? 0xFE : 0xFF);
arg.WriteRest(this);
}
*/
//Single byte opcodes
//There is no PUSHAD/POPAD in 64-bit mode.
void XEmitter::INT3() {Write8(0xCC);}
@ -2035,113 +2011,4 @@ void XEmitter::FNSTSW_AX() { Write8(0xDF); Write8(0xE0); }
void XEmitter::RDTSC() { Write8(0x0F); Write8(0x31); }
// helper routines for setting pointers
void XEmitter::CallCdeclFunction3(void* fnptr, u32 arg0, u32 arg1, u32 arg2)
{
#ifdef _MSC_VER
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
CALL(fnptr);
#else
MOV(32, R(RDI), Imm32(arg0));
MOV(32, R(RSI), Imm32(arg1));
MOV(32, R(RDX), Imm32(arg2));
CALL(fnptr);
#endif
}
void XEmitter::CallCdeclFunction4(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3)
{
#ifdef _MSC_VER
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
CALL(fnptr);
#else
MOV(32, R(RDI), Imm32(arg0));
MOV(32, R(RSI), Imm32(arg1));
MOV(32, R(RDX), Imm32(arg2));
MOV(32, R(RCX), Imm32(arg3));
CALL(fnptr);
#endif
}
void XEmitter::CallCdeclFunction5(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
{
#ifdef _MSC_VER
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
MOV(32, MDisp(RSP, 0x20), Imm32(arg4));
CALL(fnptr);
#else
MOV(32, R(RDI), Imm32(arg0));
MOV(32, R(RSI), Imm32(arg1));
MOV(32, R(RDX), Imm32(arg2));
MOV(32, R(RCX), Imm32(arg3));
MOV(32, R(R8), Imm32(arg4));
CALL(fnptr);
#endif
}
void XEmitter::CallCdeclFunction6(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
{
#ifdef _MSC_VER
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
MOV(32, MDisp(RSP, 0x20), Imm32(arg4));
MOV(32, MDisp(RSP, 0x28), Imm32(arg5));
CALL(fnptr);
#else
MOV(32, R(RDI), Imm32(arg0));
MOV(32, R(RSI), Imm32(arg1));
MOV(32, R(RDX), Imm32(arg2));
MOV(32, R(RCX), Imm32(arg3));
MOV(32, R(R8), Imm32(arg4));
MOV(32, R(R9), Imm32(arg5));
CALL(fnptr);
#endif
}
// See header
void XEmitter::___CallCdeclImport3(void* impptr, u32 arg0, u32 arg1, u32 arg2)
{
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
CALLptr(M(impptr));
}
void XEmitter::___CallCdeclImport4(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3)
{
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
CALLptr(M(impptr));
}
void XEmitter::___CallCdeclImport5(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4)
{
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
MOV(32, MDisp(RSP, 0x20), Imm32(arg4));
CALLptr(M(impptr));
}
void XEmitter::___CallCdeclImport6(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
{
MOV(32, R(RCX), Imm32(arg0));
MOV(32, R(RDX), Imm32(arg1));
MOV(32, R(R8), Imm32(arg2));
MOV(32, R(R9), Imm32(arg3));
MOV(32, MDisp(RSP, 0x20), Imm32(arg4));
MOV(32, MDisp(RSP, 0x28), Imm32(arg5));
CALLptr(M(impptr));
}
}

34
Source/Core/Common/x64Emitter.h
View File

@ -271,8 +271,6 @@ struct FixupBranch
int type; //0 = 8bit 1 = 32bit
};
typedef const u8* JumpTarget;
class XEmitter
{
friend struct OpArg; // for Write8 etc
@ -283,6 +281,8 @@ private:
void CheckFlags();
void Rex(int w, int r, int x, int b);
void WriteModRM(int mod, int rm, int reg);
void WriteSIB(int scale, int index, int base);
void WriteSimple1Byte(int bits, u8 byte, X64Reg reg);
void WriteSimple2Byte(int bits, u8 byte1, u8 byte2, X64Reg reg);
void WriteMulDivType(int bits, OpArg src, int ext);
@ -319,9 +319,6 @@ public:
XEmitter(u8* code_ptr) { code = code_ptr; flags_locked = false; }
virtual ~XEmitter() {}
void WriteModRM(int mod, int rm, int reg);
void WriteSIB(int scale, int index, int base);
void SetCodePtr(u8* ptr);
void ReserveCodeSpace(int bytes);
const u8* AlignCode4();
@ -382,7 +379,6 @@ public:
void CALLptr(OpArg arg);
FixupBranch J_CC(CCFlags conditionCode, bool force5bytes = false);
//void J_CC(CCFlags conditionCode, JumpTarget target);
void J_CC(CCFlags conditionCode, const u8* addr);
void SetJumpTarget(const FixupBranch& branch);
@ -942,32 +938,6 @@ public:
size_t ABI_PushRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size = 0);
void ABI_PopRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size = 0);
inline int ABI_GetNumXMMRegs() { return 16; }
// Strange call wrappers.
void CallCdeclFunction3(void* fnptr, u32 arg0, u32 arg1, u32 arg2);
void CallCdeclFunction4(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3);
void CallCdeclFunction5(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
void CallCdeclFunction6(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5);
// Comments from VertexLoader.cpp about these horrors:
// This is a horrible hack that is necessary in 64-bit mode because Opengl32.dll is based way, way above the 32-bit
// address space that is within reach of a CALL, and just doing &fn gives us these high uncallable addresses. So we
// want to grab the function pointers from the import table instead.
void ___CallCdeclImport3(void* impptr, u32 arg0, u32 arg1, u32 arg2);
void ___CallCdeclImport4(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3);
void ___CallCdeclImport5(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
void ___CallCdeclImport6(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5);
#define CallCdeclFunction3_I(a,b,c,d) ___CallCdeclImport3(&__imp_##a,b,c,d)
#define CallCdeclFunction4_I(a,b,c,d,e) ___CallCdeclImport4(&__imp_##a,b,c,d,e)
#define CallCdeclFunction5_I(a,b,c,d,e,f) ___CallCdeclImport5(&__imp_##a,b,c,d,e,f)
#define CallCdeclFunction6_I(a,b,c,d,e,f,g) ___CallCdeclImport6(&__imp_##a,b,c,d,e,f,g)
#define DECLARE_IMPORT(x) extern "C" void *__imp_##x
// Utility to generate a call to a std::function object.
//
// Unfortunately, calling operator() directly is undefined behavior in C++