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postencode
2013 May 13
0
[LLVMdev] [ARM] Bugs in decode / encode of PC-relative t2 LDR in the ARM backend
...ns for all variants in the T2I_ld multiclass, as well as LDRT to basically do what the "s" version decoder in the multiclass did and switch over to the literal version when Rn == PC. This exposed the issue with the encoding of the opcode t2LDRpci from an MCInst, so I gave that variant a PostEncode function to handle sign conversion. This ended up exposing some broken llvm-lit tests (verified via IDA Pro 6.3 and by hand with the ARM manuals) which I also have fixes for.
Anyway, now that I've explained this, I'm wanting to know if there might be some better way that I missed whe...