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Start jit_call implementation

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This commit is contained in:
Magnus Norddahl 2020-05-08 18:33:26 +02:00
parent 0b769474b0
commit 5c06d0911d
2 changed files with 29 additions and 16 deletions
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37
src/common/scripting/jit/jit_call.cpp
View file

@ -3,10 +3,6 @@
#include <map>
#include <memory>
#if 1
#else
void JitCompiler::EmitPARAM()
{
ParamOpcodes.Push(pc);
@ -35,18 +31,21 @@ void JitCompiler::EmitVtbl(const VMOP *op)
int b = op->b;
int c = op->c;
auto label = EmitThrowExceptionLabel(X_READ_NIL);
cc.test(regA[b], regA[b]);
cc.jz(label);
auto exceptionbb = EmitThrowExceptionLabel(X_READ_NIL);
auto continuebb = irfunc->createBasicBlock({});
cc.CreateCondBr(cc.CreateICmpNE(LoadA(b), ConstValueA(0)), exceptionbb, continuebb);
cc.SetInsertPoint(continuebb);
cc.mov(regA[a], asmjit::x86::qword_ptr(regA[b], myoffsetof(DObject, Class)));
cc.mov(regA[a], asmjit::x86::qword_ptr(regA[a], myoffsetof(PClass, Virtuals) + myoffsetof(FArray, Array)));
cc.mov(regA[a], asmjit::x86::qword_ptr(regA[a], c * (int)sizeof(void*)));
IRValue* ptrObject = LoadA(b);
IRValue* ptrClass = Load(ToPtrPtr(ptrObject, ConstValueD(myoffsetof(DObject, Class))));
IRValue* ptrArray = Load(ToPtrPtr(ptrClass, ConstValueD(myoffsetof(PClass, Virtuals) + myoffsetof(FArray, Array))));
IRValue* ptrFunc = Load(ToPtrPtr(ptrArray, ConstValueD(c * (int)sizeof(void*))));
StoreA(ptrFunc, a);
}
void JitCompiler::EmitCALL()
{
EmitVMCall(regA[A], nullptr);
EmitVMCall(LoadA(A), nullptr);
pc += C; // Skip RESULTs
}
@ -64,14 +63,24 @@ void JitCompiler::EmitCALL_K()
}
else
{
auto ptr = newTempIntPtr();
cc.mov(ptr, asmjit::imm_ptr(target));
EmitVMCall(ptr, target);
EmitVMCall(ConstValueA(target), target);
}
pc += C; // Skip RESULTs
}
#if 1
void JitCompiler::EmitNativeCall(VMNativeFunction* target)
{
}
void JitCompiler::EmitVMCall(IRValue* ptr, VMFunction* target)
{
}
#else
void JitCompiler::EmitVMCall(asmjit::X86Gp vmfunc, VMFunction *target)
{
using namespace asmjit;

8
src/common/scripting/jit/jitintern.h
View file

@ -35,6 +35,10 @@ private:
IRBasicBlock* GetLabel(size_t pos) { return nullptr; }
void EmitNativeCall(VMNativeFunction* target);
void EmitVMCall(IRValue* ptr, VMFunction* target);
void EmitVtbl(const VMOP* op);
void EmitReadBarrier();
void EmitNullPointerThrow(int index, EVMAbortException reason);
@ -135,6 +139,8 @@ private:
const VMOP* pc;
VM_UBYTE op;
TArray<const VMOP*> ParamOpcodes;
};
#else
@ -382,8 +388,6 @@ private:
int offsetD;
int offsetExtra;
TArray<const VMOP *> ParamOpcodes;
void CheckVMFrame();
asmjit::X86Gp GetCallReturns();