mirror of
https://github.com/DrBeef/Raze.git
synced 2024-11-26 22:11:58 +00:00
721 lines
20 KiB
C++
721 lines
20 KiB
C++
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#include "jitintern.h"
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#include <map>
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#include <memory>
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void JitCompiler::EmitPARAM()
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{
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ParamOpcodes.Push(pc);
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}
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void JitCompiler::EmitPARAMI()
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{
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ParamOpcodes.Push(pc);
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}
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void JitCompiler::EmitRESULT()
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{
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// This instruction is just a placeholder to indicate where a return
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// value should be stored. It does nothing on its own and should not
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// be executed.
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}
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void JitCompiler::EmitVTBL()
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{
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// This instruction is handled in the CALL/CALL_K instruction following it
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}
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void JitCompiler::EmitVtbl(const VMOP *op)
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{
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int a = op->a;
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int b = op->b;
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int c = op->c;
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auto label = EmitThrowExceptionLabel(X_READ_NIL);
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cc.test(regA[b], regA[b]);
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cc.jz(label);
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cc.mov(regA[a], asmjit::x86::qword_ptr(regA[b], myoffsetof(DObject, Class)));
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cc.mov(regA[a], asmjit::x86::qword_ptr(regA[a], myoffsetof(PClass, Virtuals) + myoffsetof(FArray, Array)));
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cc.mov(regA[a], asmjit::x86::qword_ptr(regA[a], c * (int)sizeof(void*)));
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}
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void JitCompiler::EmitCALL()
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{
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EmitVMCall(regA[A], nullptr);
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pc += C; // Skip RESULTs
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}
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void JitCompiler::EmitCALL_K()
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{
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VMFunction *target = static_cast<VMFunction*>(konsta[A].v);
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VMNativeFunction *ntarget = nullptr;
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if (target && (target->VarFlags & VARF_Native))
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ntarget = static_cast<VMNativeFunction *>(target);
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if (ntarget && ntarget->DirectNativeCall)
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{
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EmitNativeCall(ntarget);
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}
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else
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{
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auto ptr = newTempIntPtr();
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cc.mov(ptr, asmjit::imm_ptr(target));
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EmitVMCall(ptr, target);
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}
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pc += C; // Skip RESULTs
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}
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void JitCompiler::EmitVMCall(asmjit::X86Gp vmfunc, VMFunction *target)
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{
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using namespace asmjit;
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CheckVMFrame();
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int numparams = StoreCallParams();
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if (numparams != B)
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I_Error("OP_CALL parameter count does not match the number of preceding OP_PARAM instructions");
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if (pc > sfunc->Code && (pc - 1)->op == OP_VTBL)
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EmitVtbl(pc - 1);
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FillReturns(pc + 1, C);
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X86Gp paramsptr = newTempIntPtr();
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cc.lea(paramsptr, x86::ptr(vmframe, offsetParams));
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auto scriptcall = newTempIntPtr();
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cc.mov(scriptcall, x86::ptr(vmfunc, myoffsetof(VMScriptFunction, ScriptCall)));
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auto result = newResultInt32();
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auto call = cc.call(scriptcall, FuncSignature5<int, VMFunction *, VMValue*, int, VMReturn*, int>());
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call->setRet(0, result);
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call->setArg(0, vmfunc);
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call->setArg(1, paramsptr);
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call->setArg(2, Imm(B));
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call->setArg(3, GetCallReturns());
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call->setArg(4, Imm(C));
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call->setInlineComment(target ? target->PrintableName.GetChars() : "VMCall");
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LoadInOuts();
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LoadReturns(pc + 1, C);
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ParamOpcodes.Clear();
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}
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int JitCompiler::StoreCallParams()
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{
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using namespace asmjit;
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X86Gp stackPtr = newTempIntPtr();
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X86Gp tmp = newTempIntPtr();
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X86Xmm tmp2 = newTempXmmSd();
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int numparams = 0;
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for (unsigned int i = 0; i < ParamOpcodes.Size(); i++)
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{
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int slot = numparams++;
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if (ParamOpcodes[i]->op == OP_PARAMI)
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{
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int abcs = ParamOpcodes[i]->i24;
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cc.mov(asmjit::x86::dword_ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, i)), abcs);
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continue;
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}
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int bc = ParamOpcodes[i]->i16u;
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switch (ParamOpcodes[i]->a)
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{
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case REGT_NIL:
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), (int64_t)0);
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break;
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case REGT_INT:
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cc.mov(x86::dword_ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, i)), regD[bc]);
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break;
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case REGT_INT | REGT_ADDROF:
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cc.lea(stackPtr, x86::ptr(vmframe, offsetD + (int)(bc * sizeof(int32_t))));
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cc.mov(x86::dword_ptr(stackPtr), regD[bc]);
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), stackPtr);
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break;
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case REGT_INT | REGT_KONST:
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cc.mov(x86::dword_ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, i)), konstd[bc]);
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break;
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case REGT_STRING:
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, sp)), regS[bc]);
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break;
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case REGT_STRING | REGT_ADDROF:
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), regS[bc]);
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break;
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case REGT_STRING | REGT_KONST:
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cc.mov(tmp, asmjit::imm_ptr(&konsts[bc]));
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, sp)), tmp);
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break;
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case REGT_POINTER:
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), regA[bc]);
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break;
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case REGT_POINTER | REGT_ADDROF:
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cc.lea(stackPtr, x86::ptr(vmframe, offsetA + (int)(bc * sizeof(void*))));
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cc.mov(x86::ptr(stackPtr), regA[bc]);
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), stackPtr);
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break;
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case REGT_POINTER | REGT_KONST:
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cc.mov(tmp, asmjit::imm_ptr(konsta[bc].v));
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), tmp);
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break;
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case REGT_FLOAT:
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cc.movsd(x86::qword_ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, f)), regF[bc]);
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break;
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case REGT_FLOAT | REGT_MULTIREG2:
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for (int j = 0; j < 2; j++)
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{
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cc.movsd(x86::qword_ptr(vmframe, offsetParams + (slot + j) * sizeof(VMValue) + myoffsetof(VMValue, f)), regF[bc + j]);
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}
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numparams++;
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break;
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case REGT_FLOAT | REGT_MULTIREG3:
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for (int j = 0; j < 3; j++)
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{
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cc.movsd(x86::qword_ptr(vmframe, offsetParams + (slot + j) * sizeof(VMValue) + myoffsetof(VMValue, f)), regF[bc + j]);
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}
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numparams += 2;
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break;
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case REGT_FLOAT | REGT_MULTIREG4:
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for (int j = 0; j < 4; j++)
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{
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cc.movsd(x86::qword_ptr(vmframe, offsetParams + (slot + j) * sizeof(VMValue) + myoffsetof(VMValue, f)), regF[bc + j]);
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}
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numparams += 3;
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break;
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case REGT_FLOAT | REGT_ADDROF:
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cc.lea(stackPtr, x86::ptr(vmframe, offsetF + (int)(bc * sizeof(double))));
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// When passing the address to a float we don't know if the receiving function will treat it as float, vec2 or vec3.
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for (int j = 0; j < 3; j++)
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{
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if ((unsigned int)(bc + j) < regF.Size())
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cc.movsd(x86::qword_ptr(stackPtr, j * sizeof(double)), regF[bc + j]);
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}
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cc.mov(x86::ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, a)), stackPtr);
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break;
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case REGT_FLOAT | REGT_KONST:
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cc.mov(tmp, asmjit::imm_ptr(konstf + bc));
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cc.movsd(tmp2, asmjit::x86::qword_ptr(tmp));
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cc.movsd(x86::qword_ptr(vmframe, offsetParams + slot * sizeof(VMValue) + myoffsetof(VMValue, f)), tmp2);
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break;
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default:
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I_Error("Unknown REGT value passed to EmitPARAM\n");
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break;
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}
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}
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return numparams;
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}
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void JitCompiler::LoadInOuts()
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{
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for (unsigned int i = 0; i < ParamOpcodes.Size(); i++)
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{
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const VMOP ¶m = *ParamOpcodes[i];
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if (param.op == OP_PARAM && (param.a & REGT_ADDROF))
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{
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LoadCallResult(param.a, param.i16u, true);
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}
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}
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}
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void JitCompiler::LoadReturns(const VMOP *retval, int numret)
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{
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for (int i = 0; i < numret; ++i)
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{
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if (retval[i].op != OP_RESULT)
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I_Error("Expected OP_RESULT to follow OP_CALL\n");
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LoadCallResult(retval[i].b, retval[i].c, false);
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}
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}
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void JitCompiler::LoadCallResult(int type, int regnum, bool addrof)
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{
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switch (type & REGT_TYPE)
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{
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case REGT_INT:
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cc.mov(regD[regnum], asmjit::x86::dword_ptr(vmframe, offsetD + regnum * sizeof(int32_t)));
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break;
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case REGT_FLOAT:
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cc.movsd(regF[regnum], asmjit::x86::qword_ptr(vmframe, offsetF + regnum * sizeof(double)));
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if (addrof)
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{
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// When passing the address to a float we don't know if the receiving function will treat it as float, vec2 or vec3.
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if ((unsigned int)regnum + 1 < regF.Size())
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cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
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if ((unsigned int)regnum + 2 < regF.Size())
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cc.movsd(regF[regnum + 2], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 2) * sizeof(double)));
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}
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else if (type & REGT_MULTIREG2)
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{
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cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
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}
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else if (type & REGT_MULTIREG3)
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{
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cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
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cc.movsd(regF[regnum + 2], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 2) * sizeof(double)));
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}
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else if (type & REGT_MULTIREG4)
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{
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cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
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cc.movsd(regF[regnum + 2], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 2) * sizeof(double)));
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cc.movsd(regF[regnum + 3], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 3) * sizeof(double)));
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}
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break;
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case REGT_STRING:
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// We don't have to do anything in this case. String values are never moved to virtual registers.
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break;
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case REGT_POINTER:
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cc.mov(regA[regnum], asmjit::x86::ptr(vmframe, offsetA + regnum * sizeof(void*)));
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break;
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default:
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I_Error("Unknown OP_RESULT/OP_PARAM type encountered in LoadCallResult\n");
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break;
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}
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}
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void JitCompiler::FillReturns(const VMOP *retval, int numret)
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{
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using namespace asmjit;
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for (int i = 0; i < numret; ++i)
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{
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if (retval[i].op != OP_RESULT)
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{
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I_Error("Expected OP_RESULT to follow OP_CALL\n");
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}
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int type = retval[i].b;
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int regnum = retval[i].c;
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if (type & REGT_KONST)
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{
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I_Error("OP_RESULT with REGT_KONST is not allowed\n");
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}
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auto regPtr = newTempIntPtr();
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switch (type & REGT_TYPE)
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{
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case REGT_INT:
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cc.lea(regPtr, x86::ptr(vmframe, offsetD + (int)(regnum * sizeof(int32_t))));
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break;
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case REGT_FLOAT:
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cc.lea(regPtr, x86::ptr(vmframe, offsetF + (int)(regnum * sizeof(double))));
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break;
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case REGT_STRING:
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cc.lea(regPtr, x86::ptr(vmframe, offsetS + (int)(regnum * sizeof(FString))));
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break;
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case REGT_POINTER:
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cc.lea(regPtr, x86::ptr(vmframe, offsetA + (int)(regnum * sizeof(void*))));
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break;
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default:
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I_Error("Unknown OP_RESULT type encountered in FillReturns\n");
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break;
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}
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cc.mov(x86::ptr(GetCallReturns(), i * sizeof(VMReturn) + myoffsetof(VMReturn, Location)), regPtr);
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cc.mov(x86::byte_ptr(GetCallReturns(), i * sizeof(VMReturn) + myoffsetof(VMReturn, RegType)), type);
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}
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}
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void JitCompiler::EmitNativeCall(VMNativeFunction *target)
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{
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using namespace asmjit;
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if (pc > sfunc->Code && (pc - 1)->op == OP_VTBL)
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{
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I_Error("Native direct member function calls not implemented\n");
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}
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if (target->ImplicitArgs > 0)
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{
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auto label = EmitThrowExceptionLabel(X_READ_NIL);
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assert(ParamOpcodes.Size() > 0);
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const VMOP *param = ParamOpcodes[0];
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const int bc = param->i16u;
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asmjit::X86Gp *reg = nullptr;
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switch (param->a & REGT_TYPE)
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{
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case REGT_STRING: reg = ®S[bc]; break;
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case REGT_POINTER: reg = ®A[bc]; break;
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default:
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I_Error("Unexpected register type for self pointer\n");
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break;
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}
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cc.test(*reg, *reg);
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cc.jz(label);
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}
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asmjit::CBNode *cursorBefore = cc.getCursor();
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auto call = cc.call(imm_ptr(target->DirectNativeCall), CreateFuncSignature());
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call->setInlineComment(target->PrintableName.GetChars());
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asmjit::CBNode *cursorAfter = cc.getCursor();
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cc.setCursor(cursorBefore);
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X86Gp tmp;
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X86Xmm tmp2;
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int numparams = 0;
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for (unsigned int i = 0; i < ParamOpcodes.Size(); i++)
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{
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int slot = numparams++;
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if (ParamOpcodes[i]->op == OP_PARAMI)
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{
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int abcs = ParamOpcodes[i]->i24;
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call->setArg(slot, imm(abcs));
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}
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else // OP_PARAM
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{
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int bc = ParamOpcodes[i]->i16u;
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switch (ParamOpcodes[i]->a)
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{
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case REGT_NIL:
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call->setArg(slot, imm(0));
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break;
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case REGT_INT:
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call->setArg(slot, regD[bc]);
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break;
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case REGT_INT | REGT_KONST:
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call->setArg(slot, imm(konstd[bc]));
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break;
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case REGT_STRING | REGT_ADDROF: // AddrOf string is essentially the same - a reference to the register, just not constant on the receiving side.
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case REGT_STRING:
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call->setArg(slot, regS[bc]);
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break;
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case REGT_STRING | REGT_KONST:
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tmp = newTempIntPtr();
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cc.mov(tmp, imm_ptr(&konsts[bc]));
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call->setArg(slot, tmp);
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break;
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case REGT_POINTER:
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call->setArg(slot, regA[bc]);
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break;
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case REGT_POINTER | REGT_KONST:
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tmp = newTempIntPtr();
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cc.mov(tmp, imm_ptr(konsta[bc].v));
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call->setArg(slot, tmp);
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break;
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case REGT_FLOAT:
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call->setArg(slot, regF[bc]);
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break;
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case REGT_FLOAT | REGT_MULTIREG2:
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for (int j = 0; j < 2; j++)
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call->setArg(slot + j, regF[bc + j]);
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numparams++;
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break;
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case REGT_FLOAT | REGT_MULTIREG3:
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for (int j = 0; j < 3; j++)
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call->setArg(slot + j, regF[bc + j]);
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numparams += 2;
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break;
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case REGT_FLOAT | REGT_MULTIREG4:
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for (int j = 0; j < 4; j++)
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call->setArg(slot + j, regF[bc + j]);
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numparams += 3;
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break;
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case REGT_FLOAT | REGT_KONST:
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tmp = newTempIntPtr();
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tmp2 = newTempXmmSd();
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cc.mov(tmp, asmjit::imm_ptr(konstf + bc));
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cc.movsd(tmp2, asmjit::x86::qword_ptr(tmp));
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call->setArg(slot, tmp2);
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break;
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case REGT_INT | REGT_ADDROF:
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case REGT_POINTER | REGT_ADDROF:
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case REGT_FLOAT | REGT_ADDROF:
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I_Error("REGT_ADDROF not implemented for native direct calls\n");
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break;
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default:
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I_Error("Unknown REGT value passed to EmitPARAM\n");
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break;
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}
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}
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}
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if (numparams != B)
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I_Error("OP_CALL parameter count does not match the number of preceding OP_PARAM instructions\n");
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// Note: the usage of newResultXX is intentional. Asmjit has a register allocation bug
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// if the return virtual register is already allocated in an argument slot.
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const VMOP *retval = pc + 1;
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int numret = C;
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// Check if first return value was placed in the function's real return value slot
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int startret = 1;
|
|
if (numret > 0)
|
|
{
|
|
int type = retval[0].b;
|
|
switch (type)
|
|
{
|
|
case REGT_INT:
|
|
case REGT_FLOAT:
|
|
case REGT_POINTER:
|
|
break;
|
|
default:
|
|
startret = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Pass return pointers as arguments
|
|
for (int i = startret; i < numret; ++i)
|
|
{
|
|
int type = retval[i].b;
|
|
int regnum = retval[i].c;
|
|
|
|
if (type & REGT_KONST)
|
|
{
|
|
I_Error("OP_RESULT with REGT_KONST is not allowed\n");
|
|
}
|
|
|
|
CheckVMFrame();
|
|
|
|
if ((type & REGT_TYPE) == REGT_STRING)
|
|
{
|
|
// For strings we already have them on the stack and got named registers for them.
|
|
call->setArg(numparams + i - startret, regS[regnum]);
|
|
}
|
|
else
|
|
{
|
|
auto regPtr = newTempIntPtr();
|
|
|
|
switch (type & REGT_TYPE)
|
|
{
|
|
case REGT_INT:
|
|
cc.lea(regPtr, x86::ptr(vmframe, offsetD + (int)(regnum * sizeof(int32_t))));
|
|
break;
|
|
case REGT_FLOAT:
|
|
cc.lea(regPtr, x86::ptr(vmframe, offsetF + (int)(regnum * sizeof(double))));
|
|
break;
|
|
case REGT_STRING:
|
|
cc.lea(regPtr, x86::ptr(vmframe, offsetS + (int)(regnum * sizeof(FString))));
|
|
break;
|
|
case REGT_POINTER:
|
|
cc.lea(regPtr, x86::ptr(vmframe, offsetA + (int)(regnum * sizeof(void*))));
|
|
break;
|
|
default:
|
|
I_Error("Unknown OP_RESULT type encountered\n");
|
|
break;
|
|
}
|
|
|
|
call->setArg(numparams + i - startret, regPtr);
|
|
}
|
|
}
|
|
|
|
cc.setCursor(cursorAfter);
|
|
|
|
if (startret == 1 && numret > 0)
|
|
{
|
|
int type = retval[0].b;
|
|
int regnum = retval[0].c;
|
|
|
|
switch (type)
|
|
{
|
|
case REGT_INT:
|
|
tmp = newResultInt32();
|
|
call->setRet(0, tmp);
|
|
cc.mov(regD[regnum], tmp);
|
|
break;
|
|
case REGT_FLOAT:
|
|
tmp2 = newResultXmmSd();
|
|
call->setRet(0, tmp2);
|
|
cc.movsd(regF[regnum], tmp2);
|
|
break;
|
|
case REGT_POINTER:
|
|
tmp = newResultIntPtr();
|
|
call->setRet(0, tmp);
|
|
cc.mov(regA[regnum], tmp);
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Move the result into virtual registers
|
|
for (int i = startret; i < numret; ++i)
|
|
{
|
|
int type = retval[i].b;
|
|
int regnum = retval[i].c;
|
|
|
|
switch (type)
|
|
{
|
|
case REGT_INT:
|
|
cc.mov(regD[regnum], asmjit::x86::dword_ptr(vmframe, offsetD + regnum * sizeof(int32_t)));
|
|
break;
|
|
case REGT_FLOAT:
|
|
cc.movsd(regF[regnum], asmjit::x86::qword_ptr(vmframe, offsetF + regnum * sizeof(double)));
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG2:
|
|
cc.movsd(regF[regnum], asmjit::x86::qword_ptr(vmframe, offsetF + regnum * sizeof(double)));
|
|
cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG3:
|
|
cc.movsd(regF[regnum], asmjit::x86::qword_ptr(vmframe, offsetF + regnum * sizeof(double)));
|
|
cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
|
|
cc.movsd(regF[regnum + 2], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 2) * sizeof(double)));
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG4:
|
|
cc.movsd(regF[regnum], asmjit::x86::qword_ptr(vmframe, offsetF + regnum * sizeof(double)));
|
|
cc.movsd(regF[regnum + 1], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 1) * sizeof(double)));
|
|
cc.movsd(regF[regnum + 2], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 2) * sizeof(double)));
|
|
cc.movsd(regF[regnum + 3], asmjit::x86::qword_ptr(vmframe, offsetF + (regnum + 3) * sizeof(double)));
|
|
break;
|
|
case REGT_STRING:
|
|
// We don't have to do anything in this case. String values are never moved to virtual registers.
|
|
break;
|
|
case REGT_POINTER:
|
|
cc.mov(regA[regnum], asmjit::x86::ptr(vmframe, offsetA + regnum * sizeof(void*)));
|
|
break;
|
|
default:
|
|
I_Error("Unknown OP_RESULT type encountered\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
ParamOpcodes.Clear();
|
|
}
|
|
|
|
static std::map<FString, std::unique_ptr<TArray<uint8_t>>> argsCache;
|
|
|
|
asmjit::FuncSignature JitCompiler::CreateFuncSignature()
|
|
{
|
|
using namespace asmjit;
|
|
|
|
TArray<uint8_t> args;
|
|
FString key;
|
|
|
|
// First add parameters as args to the signature
|
|
|
|
for (unsigned int i = 0; i < ParamOpcodes.Size(); i++)
|
|
{
|
|
if (ParamOpcodes[i]->op == OP_PARAMI)
|
|
{
|
|
args.Push(TypeIdOf<int>::kTypeId);
|
|
key += "i";
|
|
}
|
|
else // OP_PARAM
|
|
{
|
|
int bc = ParamOpcodes[i]->i16u;
|
|
switch (ParamOpcodes[i]->a)
|
|
{
|
|
case REGT_NIL:
|
|
case REGT_POINTER:
|
|
case REGT_POINTER | REGT_KONST:
|
|
case REGT_STRING | REGT_ADDROF:
|
|
case REGT_INT | REGT_ADDROF:
|
|
case REGT_POINTER | REGT_ADDROF:
|
|
case REGT_FLOAT | REGT_ADDROF:
|
|
args.Push(TypeIdOf<void*>::kTypeId);
|
|
key += "v";
|
|
break;
|
|
case REGT_INT:
|
|
case REGT_INT | REGT_KONST:
|
|
args.Push(TypeIdOf<int>::kTypeId);
|
|
key += "i";
|
|
break;
|
|
case REGT_STRING:
|
|
case REGT_STRING | REGT_KONST:
|
|
args.Push(TypeIdOf<void*>::kTypeId);
|
|
key += "s";
|
|
break;
|
|
case REGT_FLOAT:
|
|
case REGT_FLOAT | REGT_KONST:
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
key += "f";
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG2:
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
key += "ff";
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG3:
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
key += "fff";
|
|
break;
|
|
case REGT_FLOAT | REGT_MULTIREG4:
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
args.Push(TypeIdOf<double>::kTypeId);
|
|
key += "ffff";
|
|
break;
|
|
|
|
default:
|
|
I_Error("Unknown REGT value passed to EmitPARAM\n");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
const VMOP *retval = pc + 1;
|
|
int numret = C;
|
|
|
|
uint32_t rettype = TypeIdOf<void>::kTypeId;
|
|
|
|
// Check if first return value can be placed in the function's real return value slot
|
|
int startret = 1;
|
|
if (numret > 0)
|
|
{
|
|
if (retval[0].op != OP_RESULT)
|
|
{
|
|
I_Error("Expected OP_RESULT to follow OP_CALL\n");
|
|
}
|
|
|
|
int type = retval[0].b;
|
|
switch (type)
|
|
{
|
|
case REGT_INT:
|
|
rettype = TypeIdOf<int>::kTypeId;
|
|
key += "ri";
|
|
break;
|
|
case REGT_FLOAT:
|
|
rettype = TypeIdOf<double>::kTypeId;
|
|
key += "rf";
|
|
break;
|
|
case REGT_POINTER:
|
|
rettype = TypeIdOf<void*>::kTypeId;
|
|
key += "rv";
|
|
break;
|
|
case REGT_STRING:
|
|
default:
|
|
startret = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Add any additional return values as function arguments
|
|
for (int i = startret; i < numret; ++i)
|
|
{
|
|
if (retval[i].op != OP_RESULT)
|
|
{
|
|
I_Error("Expected OP_RESULT to follow OP_CALL\n");
|
|
}
|
|
|
|
args.Push(TypeIdOf<void*>::kTypeId);
|
|
key += "v";
|
|
}
|
|
|
|
// FuncSignature only keeps a pointer to its args array. Store a copy of each args array variant.
|
|
std::unique_ptr<TArray<uint8_t>> &cachedArgs = argsCache[key];
|
|
if (!cachedArgs) cachedArgs.reset(new TArray<uint8_t>(args));
|
|
|
|
FuncSignature signature;
|
|
signature.init(CallConv::kIdHost, rettype, cachedArgs->Data(), cachedArgs->Size());
|
|
return signature;
|
|
}
|