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- add disabled code that attempts to load registers directly from function arguments

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This commit is contained in:
Magnus Norddahl 2018-10-09 14:46:27 +02:00
parent f0d9b49099
commit 3f4638ca31
1 changed files with 114 additions and 34 deletions
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148
src/scripting/vm/jit.cpp
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@ -2,6 +2,10 @@
#include "jit.h" #include "jit.h"
#include "jitintern.h" #include "jitintern.h"
extern PString *TypeString;
extern PStruct *TypeVector2;
extern PStruct *TypeVector3;
static asmjit::JitRuntime *jit; static asmjit::JitRuntime *jit;
static int jitRefCount = 0; static int jitRefCount = 0;
@ -175,6 +179,34 @@ void JitCompiler::Setup()
regA.Resize(sfunc->NumRegA); regA.Resize(sfunc->NumRegA);
regS.Resize(sfunc->NumRegS); regS.Resize(sfunc->NumRegS);
for (int i = 0; i < sfunc->NumRegD; i++)
{
FString regname;
regname.Format("regD%d", i);
regD[i] = cc.newInt32(regname.GetChars());
}
for (int i = 0; i < sfunc->NumRegF; i++)
{
FString regname;
regname.Format("regF%d", i);
regF[i] = cc.newXmmSd(regname.GetChars());
}
for (int i = 0; i < sfunc->NumRegS; i++)
{
FString regname;
regname.Format("regS%d", i);
regS[i] = cc.newIntPtr(regname.GetChars());
}
for (int i = 0; i < sfunc->NumRegA; i++)
{
FString regname;
regname.Format("regA%d", i);
regA[i] = cc.newIntPtr(regname.GetChars());
}
frameD = cc.newIntPtr(); frameD = cc.newIntPtr();
frameF = cc.newIntPtr(); frameF = cc.newIntPtr();
frameS = cc.newIntPtr(); frameS = cc.newIntPtr();
@ -195,9 +227,63 @@ void JitCompiler::Setup()
{ {
// This is a simple frame with no constructors or destructors. Allocate it on the stack ourselves. // This is a simple frame with no constructors or destructors. Allocate it on the stack ourselves.
//auto vmstack = cc.newStack(offsetExtra + sfunc->ExtraSpace, 16); // To do: fill in params without VMFillParams
auto vmstack = cc.newStack(sfunc->StackSize, 16); auto vmstack = cc.newStack(sfunc->StackSize, 16);
cc.lea(vmframe, vmstack); cc.lea(vmframe, vmstack);
cc.lea(params, x86::ptr(vmframe, offsetParams));
cc.lea(frameF, x86::ptr(vmframe, offsetF));
cc.lea(frameS, x86::ptr(vmframe, offsetS));
cc.lea(frameA, x86::ptr(vmframe, offsetA));
cc.lea(frameD, x86::ptr(vmframe, offsetD));
auto slowinit = cc.newLabel();
auto endinit = cc.newLabel();
#if 0 // this crashes sometimes
cc.cmp(numargs, sfunc->NumArgs);
cc.jne(slowinit);
// Is there a better way to know the type than this?
int argsPos = 0;
int regd = 0, regf = 0, rega = 0;
for (unsigned int i = 0; i < sfunc->Proto->ArgumentTypes.Size(); i++)
{
const PType *type = sfunc->Proto->ArgumentTypes[i];
if (type->isPointer())
{
cc.mov(regA[rega++], x86::ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, a)));
}
else if (type->isIntCompatible())
{
cc.mov(regD[regd++], x86::dword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, i)));
}
else if (type == TypeVector2)
{
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
}
else if (type == TypeVector3)
{
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
}
else if (type->isFloat())
{
cc.movsd(regF[regf++], x86::qword_ptr(args, argsPos++ * sizeof(VMValue) + offsetof(VMValue, f)));
}
else if (type == TypeString)
{
I_FatalError("JIT: Strings are not supported yet for simple frames");
}
}
if (sfunc->NumArgs != argsPos || regd > sfunc->NumRegD || regf > sfunc->NumRegF || rega > sfunc->NumRegA)
I_FatalError("JIT: sfunc->NumArgs != argsPos || regd > sfunc->NumRegD || regf > sfunc->NumRegF || rega > sfunc->NumRegA");
cc.jmp(endinit);
#endif
cc.bind(slowinit);
auto sfuncptr = cc.newIntPtr(); auto sfuncptr = cc.newIntPtr();
cc.mov(sfuncptr, imm_ptr(sfunc)); cc.mov(sfuncptr, imm_ptr(sfunc));
if (cc.is64Bit()) if (cc.is64Bit())
@ -227,6 +313,20 @@ void JitCompiler::Setup()
fillParams->setArg(2, numargs); fillParams->setArg(2, numargs);
fillParams->setArg(3, exceptInfo); fillParams->setArg(3, exceptInfo);
EmitCheckForException(); EmitCheckForException();
for (int i = 0; i < sfunc->NumRegD; i++)
cc.mov(regD[i], x86::dword_ptr(frameD, i * sizeof(int32_t)));
for (int i = 0; i < sfunc->NumRegF; i++)
cc.movsd(regF[i], x86::qword_ptr(frameF, i * sizeof(double)));
for (int i = 0; i < sfunc->NumRegS; i++)
cc.lea(regS[i], x86::ptr(frameS, i * sizeof(FString)));
for (int i = 0; i < sfunc->NumRegA; i++)
cc.mov(regA[i], x86::ptr(frameA, i * sizeof(void*)));
cc.bind(endinit);
} }
else else
{ {
@ -255,44 +355,24 @@ void JitCompiler::Setup()
cc.mov(vmframe, x86::ptr(stack)); // stack->Blocks cc.mov(vmframe, x86::ptr(stack)); // stack->Blocks
cc.mov(vmframe, x86::ptr(vmframe, VMFrameStack::OffsetLastFrame())); // Blocks->LastFrame cc.mov(vmframe, x86::ptr(vmframe, VMFrameStack::OffsetLastFrame())); // Blocks->LastFrame
}
cc.lea(params, x86::ptr(vmframe, offsetParams)); cc.lea(params, x86::ptr(vmframe, offsetParams));
cc.lea(frameF, x86::ptr(vmframe, offsetF)); cc.lea(frameF, x86::ptr(vmframe, offsetF));
cc.lea(frameS, x86::ptr(vmframe, offsetS)); cc.lea(frameS, x86::ptr(vmframe, offsetS));
cc.lea(frameA, x86::ptr(vmframe, offsetA)); cc.lea(frameA, x86::ptr(vmframe, offsetA));
cc.lea(frameD, x86::ptr(vmframe, offsetD)); cc.lea(frameD, x86::ptr(vmframe, offsetD));
for (int i = 0; i < sfunc->NumRegD; i++) for (int i = 0; i < sfunc->NumRegD; i++)
{ cc.mov(regD[i], x86::dword_ptr(frameD, i * sizeof(int32_t)));
FString regname;
regname.Format("regD%d", i);
regD[i] = cc.newInt32(regname.GetChars());
cc.mov(regD[i], x86::dword_ptr(frameD, i * sizeof(int32_t)));
}
for (int i = 0; i < sfunc->NumRegF; i++) for (int i = 0; i < sfunc->NumRegF; i++)
{ cc.movsd(regF[i], x86::qword_ptr(frameF, i * sizeof(double)));
FString regname;
regname.Format("regF%d", i);
regF[i] = cc.newXmmSd(regname.GetChars());
cc.movsd(regF[i], x86::qword_ptr(frameF, i * sizeof(double)));
}
for (int i = 0; i < sfunc->NumRegS; i++) for (int i = 0; i < sfunc->NumRegS; i++)
{ cc.lea(regS[i], x86::ptr(frameS, i * sizeof(FString)));
FString regname;
regname.Format("regS%d", i);
regS[i] = cc.newIntPtr(regname.GetChars());
cc.lea(regS[i], x86::ptr(frameS, i * sizeof(FString)));
}
for (int i = 0; i < sfunc->NumRegA; i++) for (int i = 0; i < sfunc->NumRegA; i++)
{ cc.mov(regA[i], x86::ptr(frameA, i * sizeof(void*)));
FString regname;
regname.Format("regA%d", i);
regA[i] = cc.newIntPtr(regname.GetChars());
cc.mov(regA[i], x86::ptr(frameA, i * sizeof(void*)));
} }
int size = sfunc->CodeSize; int size = sfunc->CodeSize;