tangaac 427be07675 [LoongArch] Support amcas[_db].{b/h/w/d} instructions. (#114189) ...

Two options for clang: -mlamcas & -mno-lamcas.
Enable or disable amcas[_db].{b/h} instructions.
The default is -mno-lamcas.
Only works on LoongArch64.

2024-11-27 17:36:13 +08:00

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