These instructions are added by following the `LoongArch Reference
Manual Volume 1: Basic Architecture Version 1.00`.
Differential Revision: https://reviews.llvm.org/D123988
With the addition of disassembler now we can do instructions 'round-trip' test
that assembles `.s` to obj with `llvm-mc` and disassembles it with `llvm-objdump`
to check instruction mnemonics.
Reviewed By: xen0n, MaskRay
Differential Revision: https://reviews.llvm.org/D120477
This patch adds basic support to AsmParser which can handle basic
instructions with register or immediate operands. With the addition of
the parser, now it's possible to test instructions encoding with `llvm-mc`.
Disassembler will be added later and then we can do `round-trip` test.
Reviewed By: xen0n, MaskRay, myhsu
Differential Revision: https://reviews.llvm.org/D120476
Weining Lu