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Hi all, On behalf of Andes Technology Corp, I am proposing a backend targeting the NDS32 V3 ISA. NDS32 V3 ISA is a 16/32 bit mixed instruction set architecture that developed By AndesTech. You can find more information at the Andes website <http://www.andestech.com/>, and reference AndeStar ISA Manual (V3 ISA) from document download page <http://www.andestech.com/product.php?cls=9>.

Hi, all On the website, it says, CCAssignToRegWithShadow <registerList, shadowList> — similar to CCAssignToReg, but with a shadow list of registers I don't know when we should use CCAssignToRegWithShadow. Because I am not a architecture expert, please bear with my naive question. Take ARMCallingConv.td as an example, CCIfType<[i32], CCIfAlign<"...