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- same as last commit for FxMulDiv and FxPow.

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- some streamlining of FxAddSub.
This commit is contained in:
Christoph Oelckers 2016-11-18 11:53:18 +01:00
parent a00181c899
commit b6801d526b
1 changed files with 117 additions and 72 deletions
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189
src/scripting/codegeneration/codegen.cpp
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@ -2417,39 +2417,6 @@ bool FxBinary::ResolveLR(FCompileContext& ctx, bool castnumeric)
{
switch (Operator)
{
case '/':
if (right->IsVector())
{
// For division, the vector must be the first operand.
ScriptPosition.Message(MSG_ERROR, "Incompatible operands for division");
delete this;
return false;
}
case '*':
if (left->IsVector())
{
right = new FxFloatCast(right);
right = right->Resolve(ctx);
if (right == nullptr)
{
delete this;
return false;
}
ValueType = left->ValueType;
}
else
{
left = new FxFloatCast(left);
left = left->Resolve(ctx);
if (left == nullptr)
{
delete this;
return false;
}
ValueType = right->ValueType;
}
break;
case TK_Eq:
case TK_Neq:
if (left->ValueType != right->ValueType)
@ -2540,15 +2507,34 @@ bool FxBinary::ResolveLR(FCompileContext& ctx, bool castnumeric)
return true;
}
//==========================================================================
//
//
//
//==========================================================================
void FxBinary::Promote(FCompileContext &ctx)
{
if (left->ValueType->GetRegType() == REGT_FLOAT && right->ValueType->GetRegType() == REGT_INT)
// math operations of unsigned ints results in an unsigned int. (16 and 8 bit values never get here, they get promoted to regular ints elsewhere already.)
if (left->ValueType == TypeUInt32 && right->ValueType == TypeUInt32)
{
right = (new FxFloatCast(right))->Resolve(ctx);
ValueType = TypeUInt32;
}
else if (left->ValueType->GetRegType() == REGT_INT && right->ValueType->GetRegType() == REGT_FLOAT)
else if (left->IsInteger() && right->IsInteger())
{
left = (new FxFloatCast(left))->Resolve(ctx);
ValueType = TypeSInt32; // Addition and subtraction forces all integer-derived types to signed int.
}
else
{
ValueType = TypeFloat64;
if (left->IsFloat() && right->IsInteger())
{
right = (new FxFloatCast(right))->Resolve(ctx);
}
else if (left->IsInteger() && right->IsFloat())
{
left = (new FxFloatCast(left))->Resolve(ctx);
}
}
}
@ -2590,34 +2576,17 @@ FxExpression *FxAddSub::Resolve(FCompileContext& ctx)
}
else
{
ScriptPosition.Message(MSG_ERROR, "Incompatible operands for %s", Operator == '+' ? "addition" : "subtraction");
delete this;
return nullptr;
goto error;
}
}
else if (left->IsNumeric() && right->IsNumeric())
{
// Addition and subtraction of unsigned ints results in an unsigned int. (16 and 8 bit values never get here, they get promoted to regular ints elsewhere already.)
if (left->ValueType == TypeUInt32 && right->ValueType == TypeUInt32)
{
ValueType = TypeUInt32;
}
else if (left->ValueType->GetRegType() == REGT_INT && right->ValueType->GetRegType() == REGT_INT)
{
ValueType = TypeSInt32; // Addition and subtraction forces all integer-derived types to signed int.
}
else
{
ValueType = TypeFloat64;
Promote(ctx);
}
Promote(ctx);
}
else
{
// To check: It may be that this could pass in DECORATE, although setting TypeVoid here would pretty much prevent that.
ScriptPosition.Message(MSG_ERROR, "Incompatible operands for %s", Operator == '+' ? "addition" : "subtraction");
delete this;
return false;
goto error;
}
if (left->isConstant() && right->isConstant())
@ -2651,6 +2620,11 @@ FxExpression *FxAddSub::Resolve(FCompileContext& ctx)
}
}
return this;
error:
ScriptPosition.Message(MSG_ERROR, "Incompatible operands for %s", Operator == '+' ? "addition" : "subtraction");
delete this;
return nullptr;
}
//==========================================================================
@ -2750,16 +2724,70 @@ FxExpression *FxMulDiv::Resolve(FCompileContext& ctx)
{
CHECKRESOLVED();
if (!ResolveLR(ctx, true))
return nullptr;
if (!IsNumeric() && !IsVector())
RESOLVE(left, ctx);
RESOLVE(right, ctx);
if (!left || !right)
{
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
delete this;
return nullptr;
return false;
}
else if (left->isConstant() && right->isConstant())
if (left->IsVector() || right->IsVector())
{
switch (Operator)
{
case '/':
// For division, the vector must be the first operand.
if (right->IsVector()) goto error;
case '*':
if (left->IsVector() && right->IsNumeric())
{
if (right->IsInteger())
{
right = new FxFloatCast(right);
right = right->Resolve(ctx);
if (right == nullptr)
{
delete this;
return false;
}
}
ValueType = left->ValueType;
}
else if (right->IsVector() && left->IsNumeric())
{
if (left->IsInteger())
{
left = new FxFloatCast(left);
left = left->Resolve(ctx);
if (left == nullptr)
{
delete this;
return false;
}
}
ValueType = right->ValueType;
}
break;
default:
// Vector modulus is not permitted
goto error;
}
}
else if (left->IsNumeric() && right->IsNumeric())
{
Promote(ctx);
}
else
{
// To check: It may be that this could pass in DECORATE, although setting TypeVoid here would pretty much prevent that.
goto error;
}
if (left->isConstant() && right->isConstant())
{
if (IsFloat())
{
@ -2805,8 +2833,13 @@ FxExpression *FxMulDiv::Resolve(FCompileContext& ctx)
}
}
Promote(ctx);
return this;
error:
ScriptPosition.Message(MSG_ERROR, "Incompatible operands for %s", Operator == '*' ? "multiplication" : Operator == '%' ? "modulus" : "division");
delete this;
return nullptr;
}
@ -2818,7 +2851,6 @@ FxExpression *FxMulDiv::Resolve(FCompileContext& ctx)
ExpEmit FxMulDiv::Emit(VMFunctionBuilder *build)
{
// allocate the result first so that the operation does not leave gaps in the register set.
ExpEmit op1 = left->Emit(build);
ExpEmit op2 = right->Emit(build);
@ -2919,15 +2951,29 @@ FxExpression *FxPow::Resolve(FCompileContext& ctx)
{
CHECKRESOLVED();
if (!ResolveLR(ctx, true))
return nullptr;
if (!IsNumeric())
RESOLVE(left, ctx);
RESOLVE(right, ctx);
if (!left || !right)
{
ScriptPosition.Message(MSG_ERROR, "Numeric type expected");
delete this;
return false;
}
if (!left->IsNumeric() || !right->IsNumeric())
{
ScriptPosition.Message(MSG_ERROR, "Numeric type expected for '**'");
delete this;
return nullptr;
}
if (!left->IsFloat())
{
left = (new FxFloatCast(left))->Resolve(ctx);
ABORT(left);
}
if (!right->IsFloat())
{
right = (new FxFloatCast(right))->Resolve(ctx);
ABORT(right);
}
if (left->isConstant() && right->isConstant())
{
double v1 = static_cast<FxConstant *>(left)->GetValue().GetFloat();
@ -2937,7 +2983,6 @@ FxExpression *FxPow::Resolve(FCompileContext& ctx)
return this;
}
//==========================================================================
//
//