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The generic code in lib/CodeGen has no knowledge of these semantic differences. This knowledge is only available on a per-target basis. Typical query functions would be X86InstrInfo::getMemOpBaseRegImmOfs(...) or AArch64::getMemOpInfo(...). Doing this in a common way accross targets requires callbacks in TargetInstrInfo, there seem to be some in that direction but they appear to be rarely used so

So I'd like to be able to tell the difference between an imm and an imm used in mem offset in MachineInstr. Or, it would be nice to tell the difference between src and dst operands. I must be missing something trivial? For example, int *b, a; b[10] = a + 2; // is there any marker/flag between 2 and 10 to tell the difference? Thanks. -------------- next part -------------- An HTML