Method SaveStackState

IDEHelper/Compiler/BfModule.cpp:2548–2582

}

void BfModule::SaveStackState(BfScopeData* scopeData)
{
	// If we push a value on the stack that needs to survive until the end of scopeData, we need to make sure that no
	//  scopes within scopeData restore the stack
	auto checkScope = mCurMethodState->mCurScope;
	while (true)
	{
		if (checkScope == scopeData)
		{
			if ((!checkScope->mSavedStack) && (checkScope->mBlock) && (!checkScope->mIsScopeHead) && (!checkScope->mHadOuterDynStack))
			{
				if (mBfIRBuilder->mHasDebugInfo)
					mBfIRBuilder->SaveDebugLocation();
				auto prevPos = mBfIRBuilder->GetInsertBlock();
				mBfIRBuilder->SetInsertPointAtStart(checkScope->mBlock);
				checkScope->mSavedStack = mBfIRBuilder->CreateStackSave();
				mBfIRBuilder->ClearDebugLocation(checkScope->mSavedStack);
				mBfIRBuilder->SetInsertPoint(prevPos);
				if (mBfIRBuilder->mHasDebugInfo)
					mBfIRBuilder->RestoreDebugLocation();
			}
			break;
		}
		if (checkScope->mSavedStack)
		{
			for (auto usage : checkScope->mSavedStackUses)
				mBfIRBuilder->EraseInstFromParent(usage);
			checkScope->mSavedStackUses.Clear();

			mBfIRBuilder->EraseInstFromParent(checkScope->mSavedStack);
			checkScope->mSavedStack = BfIRValue();
		}
		checkScope = checkScope->mPrevScope;
	}
}

BfIRValue BfModule::ValueScopeStart()
{