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Better union field loading

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This commit is contained in:
Brian Fiete 2022-09-05 08:36:57 -07:00
parent d2356a0582
commit 03c56b42c9
1 changed files with 8 additions and 8 deletions
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16
IDEHelper/Compiler/BfExprEvaluator.cpp
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@ -5319,11 +5319,8 @@ BfTypedValue BfExprEvaluator::LoadField(BfAstNode* targetSrc, BfTypedValue targe
return mModule->GetDefaultTypedValue(resolvedFieldType);
}
if ((target.mType->IsUnion()) && (!target.mType->IsValuelessType()))
target = mModule->MakeAddressable(target);
BfTypedValue retVal;
if (target.IsSplat())
if (targetValue.IsSplat())
{
retVal = mModule->ExtractValue(targetValue, fieldInstance, fieldInstance->mDataIdx);
}
@ -5351,15 +5348,18 @@ BfTypedValue BfExprEvaluator::LoadField(BfAstNode* targetSrc, BfTypedValue targe
resolvedFieldType, target.IsReadOnly() ? BfTypedValueKind_ReadOnlyAddr : BfTypedValueKind_Addr);
}
}
if (!retVal.IsSplat())
if (typeInstance->mIsUnion)
{
if (typeInstance->mIsUnion)
auto unionInnerType = typeInstance->GetUnionInnerType();
if (unionInnerType != resolvedFieldType)
{
if (!retVal.IsAddr())
retVal = mModule->MakeAddressable(retVal);
BfIRType llvmPtrType = mModule->mBfIRBuilder->GetPointerTo(mModule->mBfIRBuilder->MapType(resolvedFieldType));
retVal.mValue = mModule->mBfIRBuilder->CreateBitCast(retVal.mValue, llvmPtrType);
}
}
}
if ((fieldDef->mIsVolatile) && (retVal.IsAddr()))
retVal.mKind = BfTypedValueKind_VolatileAddr;