Function GetBaseAlignment

Source/SpireCore/SpirVCodeGen.cpp:430–462

UniformOrBuffer - 0: none; 1: uniform; 2: buffer

		//UniformOrBuffer - 0: none; 1: uniform; 2: buffer 
		int GetBaseAlignment(ILType* Type, int UniformOrBuffer)
		{
			auto RoundUpTo = [](int x, int r)
			{
				if (x%r)
					x += r - x%r;
				return x;
			};
			if (auto basicType = dynamic_cast<ILBasicType*>(Type))
			{
				return Type->GetAlignment();
			}
			else if (auto arrayType = dynamic_cast<ILArrayType*>(Type))
			{
				int elementAlignment = GetBaseAlignment(arrayType->BaseType.Ptr(), UniformOrBuffer);
				if (UniformOrBuffer == 1)
					elementAlignment = RoundUpTo(elementAlignment, 16);
				return elementAlignment;
			}
			else if (auto structType = dynamic_cast<ILStructType*>(Type))
			{
				int maxAlignment = -1;
				for (auto &member : structType->Members)
				{
					int memberAlignment = GetBaseAlignment(member.Type.Ptr(), UniformOrBuffer);
					maxAlignment = std::max(maxAlignment, memberAlignment);
				}
				if (UniformOrBuffer == 1)
					maxAlignment = RoundUpTo(maxAlignment, 16);
				return maxAlignment;
			}
			return -1;
		}

		int GetSize(ILType* Type, int UniformOrBuffer)
		{