[PATCH] D51731: [RISCV][MC] Tighten up checking of sybol operands to lui and auipc

[Alex Bradbury via Phabricator via llvm-commits]

asb created this revision.
asb added a reviewer: apazos.
Herald added subscribers: jocewei, PkmX, rkruppe, the_o, brucehoult, MartinMosbeck, rogfer01, mgrang, edward-jones, zzheng, shiva0217, kito-cheng, niosHD, sabuasal, simoncook, johnrusso, rbar.

Reject bare symbols and accept only %pcrel_hi(sym) for auipc and %hi(sym) for lui. Also test valid operand modifiers in rv32i-valid.s.

Note this is slightly stricter than gas, which will accept either %pcrel_hi or %hi for both lui and auipc.


https://reviews.llvm.org/D51731

Files:
  lib/Target/RISCV/AsmParser/RISCVAsmParser.cpp
  lib/Target/RISCV/RISCVInstrInfo.td
  test/MC/RISCV/rv32i-invalid.s
  test/MC/RISCV/rv32i-valid.s

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