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- moved all handling for the simple calls into EmitterArray to have it in one place only.

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The main case of FxVmFunctionCall is not done yet, though.
This commit is contained in:
Christoph Oelckers 2018-11-18 08:29:41 +01:00
parent 629d329f22
commit cbedcff559
4 changed files with 58 additions and 58 deletions
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4
src/d_dehacked.cpp
View file

@ -783,8 +783,8 @@ void SetDehParams(FState *state, int codepointer)
}
// Emit code for action parameters.
MBFCodePointerFactories[codepointer](emitters, value1, value2);
int count = emitters.EmitParameters(&buildit);
buildit.Emit(OP_CALL_K, buildit.GetConstantAddress(sym->Variants[0].Implementation), count, 0);
emitters.AddTarget(sym->Variants[0].Implementation);
emitters.EmitCall(&buildit);
buildit.Emit(OP_RET, RET_FINAL, REGT_NIL, 0);
// Attach it to the state.
VMScriptFunction *sfunc = new VMScriptFunction;

86
src/scripting/backend/codegen.cpp
View file

@ -5499,12 +5499,9 @@ ExpEmit FxRandom::Emit(VMFunctionBuilder *build)
emitters.AddParameterPointerConst(rng);
emitters.AddParameter(build, min);
emitters.AddParameter(build, max);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
ExpEmit out(build, REGT_INT);
build->Emit(OP_RESULT, 0, REGT_INT, out.RegNum);
return out;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_INT);
return emitters.EmitCall(build);
}
//==========================================================================
@ -5608,10 +5605,10 @@ ExpEmit FxRandomPick::Emit(VMFunctionBuilder *build)
emitters.AddParameterPointerConst(rng);
emitters.AddParameterIntConst(0);
emitters.AddParameterIntConst(choices.Size() - 1);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_INT);
auto resultreg = emitters.EmitCall(build);
ExpEmit resultreg(build, REGT_INT);
build->Emit(OP_RESULT, 0, REGT_INT, resultreg.RegNum);
build->Emit(OP_IJMP, resultreg.RegNum, choices.Size());
@ -5729,12 +5726,9 @@ ExpEmit FxFRandom::Emit(VMFunctionBuilder *build)
emitters.AddParameterPointerConst(rng);
emitters.AddParameter(build, min);
emitters.AddParameter(build, max);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
ExpEmit out(build, REGT_FLOAT);
build->Emit(OP_RESULT, 0, REGT_FLOAT, out.RegNum);
return out;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_FLOAT);
return emitters.EmitCall(build);
}
//==========================================================================
@ -5810,12 +5804,9 @@ ExpEmit FxRandom2::Emit(VMFunctionBuilder *build)
emitters.AddParameterPointerConst(rng);
emitters.AddParameter(build, mask);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
ExpEmit out(build, REGT_INT);
build->Emit(OP_RESULT, 0, REGT_INT, out.RegNum);
return out;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_INT);
return emitters.EmitCall(build);
}
//==========================================================================
@ -5885,11 +5876,8 @@ ExpEmit FxRandomSeed::Emit(VMFunctionBuilder *build)
emitters.AddParameterPointerConst(rng);
emitters.AddParameter(build, seed);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 0);
ExpEmit call;
return call;
emitters.AddTarget(callfunc);
return emitters.EmitCall(build);
}
//==========================================================================
@ -8554,9 +8542,7 @@ ExpEmit FxActionSpecialCall::Emit(VMFunctionBuilder *build)
EmitterArray emitters;
emitters.AddParameterIntConst(abs(Special)); // pass special number
ExpEmit selfemit(Self->Emit(build));
emitters.AddParameterPointer(selfemit.RegNum, selfemit.Konst);
emitters.AddParameter(build, Self);
for (; i < ArgList.Size(); ++i)
{
@ -8590,13 +8576,9 @@ ExpEmit FxActionSpecialCall::Emit(VMFunctionBuilder *build)
ArgList.DeleteAndClear();
ArgList.ShrinkToFit();
int count = emitters.EmitParameters(build);
selfemit.Free(build);
ExpEmit dest(build, REGT_INT);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
build->Emit(OP_RESULT, 0, REGT_INT, dest.RegNum);
return dest;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_INT);
return emitters.EmitCall(build);
}
//==========================================================================
@ -10641,8 +10623,8 @@ ExpEmit FxReturnStatement::Emit(VMFunctionBuilder *build)
build->Emit(OP_ADDA_RK, reg.RegNum, build->FramePointer.RegNum, build->GetConstantInt(build->ConstructedStructs[i]->StackOffset));
EmitterArray emitters;
emitters.AddParameter(reg, false);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(pstr->mDestructor), count, 0);
emitters.AddTarget(pstr->mDestructor);
emitters.EmitCall(build);
}
// If we return nothing, use a regular RET opcode.
@ -10834,11 +10816,8 @@ ExpEmit FxClassTypeCast::Emit(VMFunctionBuilder *build)
{
return ExpEmit(build->GetConstantAddress(nullptr), REGT_POINTER, true);
}
ExpEmit clsname = basex->Emit(build);
assert(!clsname.Konst);
ExpEmit dest(build, REGT_POINTER);
EmitterArray emitters;
emitters.AddParameter(clsname, false);
emitters.AddParameter(build, basex);
emitters.AddParameterPointerConst(const_cast<PClass *>(desttype));
// Call the BuiltinNameToClass function to convert from 'name' to class.
@ -10849,10 +10828,9 @@ ExpEmit FxClassTypeCast::Emit(VMFunctionBuilder *build)
assert(((PSymbolVMFunction *)sym)->Function != nullptr);
callfunc = ((PSymbolVMFunction *)sym)->Function;
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
build->Emit(OP_RESULT, 0, REGT_POINTER, dest.RegNum);
return dest;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_POINTER);
return emitters.EmitCall(build);
}
//==========================================================================
@ -10958,11 +10936,9 @@ ExpEmit FxClassPtrCast::Emit(VMFunctionBuilder *build)
assert(sym->IsKindOf(RUNTIME_CLASS(PSymbolVMFunction)));
assert(((PSymbolVMFunction *)sym)->Function != nullptr);
callfunc = ((PSymbolVMFunction *)sym)->Function;
ExpEmit dest(build, REGT_POINTER);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(callfunc), count, 1);
build->Emit(OP_RESULT, 0, REGT_POINTER, dest.RegNum);
return dest;
emitters.AddTarget(callfunc);
emitters.AddReturn(REGT_POINTER);
return emitters.EmitCall(build);
}
//==========================================================================
@ -11337,8 +11313,8 @@ ExpEmit FxLocalVariableDeclaration::Emit(VMFunctionBuilder *build)
build->Emit(OP_ADDA_RK, reg.RegNum, build->FramePointer.RegNum, build->GetConstantInt(StackOffset));
EmitterArray emitters;
emitters.AddParameter(reg, false);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(pstr->mConstructor), count, 0);
emitters.AddTarget(pstr->mConstructor);
emitters.EmitCall(build);
}
if (pstr->mDestructor != nullptr) build->ConstructedStructs.Push(this);
}
@ -11364,8 +11340,8 @@ void FxLocalVariableDeclaration::Release(VMFunctionBuilder *build)
build->Emit(OP_ADDA_RK, reg.RegNum, build->FramePointer.RegNum, build->GetConstantInt(StackOffset));
EmitterArray emitters;
emitters.AddParameter(reg, false);
int count = emitters.EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(pstr->mDestructor), count, 0);
emitters.AddTarget(pstr->mDestructor);
emitters.EmitCall(build);
}
build->ConstructedStructs.Delete(build->ConstructedStructs.Find(this));
}

13
src/scripting/backend/vmbuilder.cpp
View file

@ -1038,3 +1038,16 @@ int EmitterArray::EmitParameters(VMFunctionBuilder *build)
assert(paramcount == numparams);
return paramcount;
}
ExpEmit EmitterArray::EmitCall(VMFunctionBuilder *build)
{
int count = EmitParameters(build);
build->Emit(OP_CALL_K, build->GetConstantAddress(target), count, returns.Size());
if (returns.Size() == 0) return ExpEmit();
ExpEmit out(build, returns[0]);
build->Emit(OP_RESULT, 0, returns[0], out.RegNum);
return out;
}

13
src/scripting/backend/vmbuilder.h
View file

@ -167,7 +167,9 @@ class EmitterArray
{
// std::function and TArray are not compatible so this has to use std::vector instead.
std::vector<std::function<int(VMFunctionBuilder *)>> emitters;
unsigned numparams = 0;
TArray<int> returns;
unsigned numparams = 0; // This counts the number of pushed elements, which can differ from the number of emitters with vectors.
VMFunction *target = nullptr;
public:
void AddParameter(VMFunctionBuilder *build, FxExpression *operand);
@ -178,6 +180,15 @@ public:
void AddParameterIntConst(int konst);
void AddParameterStringConst(const FString &konst);
int EmitParameters(VMFunctionBuilder *build);
ExpEmit EmitCall(VMFunctionBuilder *build);
void AddReturn(int regtype)
{
returns.Push(regtype);
}
void AddTarget(VMFunction *func)
{
target = func;
}
unsigned Count() const
{
return numparams;