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More support for bitcasts with consts

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This commit is contained in:
Brian Fiete 2021-12-16 11:00:56 -05:00
parent 0ee161c314
commit def7990dbe
4 changed files with 47 additions and 24 deletions
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40
IDEHelper/Compiler/BfIRBuilder.cpp
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@ -857,6 +857,26 @@ BfIRValue BfIRConstHolder::CreateConstArrayZero(int count)
return irValue;
}
BfIRValue BfIRConstHolder::CreateConstBitCast(BfIRValue val, BfIRType type)
{
auto constVal = GetConstant(val);
auto bitCast = mTempAlloc.Alloc<BfConstantBitCast>();
if ((constVal == NULL) || (constVal->IsNull()))
bitCast->mConstType = BfConstType_BitCastNull;
else
bitCast->mConstType = BfConstType_BitCast;
bitCast->mTarget = val.mId;
bitCast->mToType = type;
BfIRValue castedVal(BfIRValueFlags_Const, mTempAlloc.GetChunkedId(bitCast));
#ifdef CHECK_CONSTHOLDER
castedVal.mHolder = this;
#endif
BF_ASSERT((void*)GetConstant(castedVal) == (void*)bitCast);
return castedVal;
}
BfIRValue BfIRConstHolder::CreateTypeOf(BfType* type)
{
BfTypeOf_Const* typeOf = mTempAlloc.Alloc<BfTypeOf_Const>();
@ -4414,25 +4434,7 @@ BfIRValue BfIRBuilder::CreateNot(BfIRValue val)
BfIRValue BfIRBuilder::CreateBitCast(BfIRValue val, BfIRType type)
{
if (val.IsConst())
{
auto constVal = GetConstant(val);
auto bitCast = mTempAlloc.Alloc<BfConstantBitCast>();
if (constVal->IsNull())
bitCast->mConstType = BfConstType_BitCastNull;
else
bitCast->mConstType = BfConstType_BitCast;
bitCast->mTarget = val.mId;
bitCast->mToType = type;
BfIRValue castedVal(BfIRValueFlags_Const, mTempAlloc.GetChunkedId(bitCast));
#ifdef CHECK_CONSTHOLDER
castedVal.mHolder = this;
#endif
BF_ASSERT((void*)GetConstant(castedVal) == (void*)bitCast);
return castedVal;
}
return CreateConstBitCast(val, type);
auto retVal = WriteCmd(BfIRCmd_BitCast, val, type);
NEW_CMD_INSERTED_IRVALUE;
return retVal;

1
IDEHelper/Compiler/BfIRBuilder.h
View file

@ -934,6 +934,7 @@ public:
BfIRValue CreateConstAggCE(BfIRType type, addr_ce ptr);
BfIRValue CreateConstArrayZero(BfIRType type, int count);
BfIRValue CreateConstArrayZero(int count);
BfIRValue CreateConstBitCast(BfIRValue val, BfIRType type);
BfIRValue CreateTypeOf(BfType* type);
BfIRValue CreateTypeOf(BfType* type, BfIRValue typeData);
BfIRValue GetUndefConstValue(BfIRType type);

24
IDEHelper/Compiler/BfModule.cpp
View file

@ -10874,7 +10874,14 @@ void BfModule::CurrentAddToConstHolder(BfIRValue& irVal)
if ((constant->mConstType == BfConstType_BitCast) || (constant->mConstType == BfConstType_BitCastNull))
{
auto bitcast = (BfConstantBitCast*)constant;
constant = mBfIRBuilder->GetConstantById(bitcast->mTarget);
BfIRValue newVal;
if (bitcast->mTarget)
{
newVal = BfIRValue(BfIRValueFlags_Const, bitcast->mTarget);
CurrentAddToConstHolder(newVal);
}
irVal = mCurTypeInstance->GetOrCreateConstHolder()->CreateConstBitCast(newVal, bitcast->mToType);
return;
}
irVal = mCurTypeInstance->CreateConst(constant, mBfIRBuilder);
@ -10999,7 +11006,7 @@ BfIRValue BfModule::ConstantToCurrent(BfConstant* constant, BfIRConstHolder* con
wantType = mContext->mTypes[constant->mIRType.mId];
if (wantType == NULL)
return constHolder->CreateConstNull();
return mBfIRBuilder->CreateConstNull();
return GetDefaultValue(wantType);
}
@ -11047,6 +11054,19 @@ BfIRValue BfModule::ConstantToCurrent(BfConstant* constant, BfIRConstHolder* con
return mBfIRBuilder->CreateIntToPtr(ConstantToCurrent(fromTarget, constHolder, NULL), toIRType);
}
if ((constant->mConstType == BfConstType_BitCast) || (constant->mConstType == BfConstType_BitCastNull))
{
auto bitcast = (BfConstantBitCast*)constant;
auto fromTarget = constHolder->GetConstantById(bitcast->mTarget);
BfIRType toIRType = bitcast->mToType;
if (toIRType.mKind == BfIRTypeData::TypeKind_TypeId)
{
auto toType = mContext->mTypes[toIRType.mId];
toIRType = mBfIRBuilder->MapType(toType);
}
return mBfIRBuilder->CreateBitCast(ConstantToCurrent(fromTarget, constHolder, NULL), toIRType);
}
if (constant->mConstType == BfConstType_Agg)
{
auto constArray = (BfConstantAgg*)constant;

2
IDEHelper/Compiler/BfModuleTypeUtils.cpp
View file

@ -11811,7 +11811,7 @@ BfIRValue BfModule::CastToValue(BfAstNode* srcNode, BfTypedValue typedVal, BfTyp
if (allowCast)
{
if (ignoreWrites)
if ((ignoreWrites) && (!typedVal.mValue.IsConst()))
return mBfIRBuilder->GetFakeVal();
return mBfIRBuilder->CreateBitCast(typedVal.mValue, mBfIRBuilder->MapType(toType));
}