llvm-project

029d9fab - [AArch64][llvm] Add missing form for `LD64B`/`ST64B` instructions (#196301)

[AArch64][llvm] Add missing form for `LD64B`/`ST64B` instructions (#196301) `LD64B` and `ST64B` are defined as follows[1]: ``` LD64B <Xt>, [<Xn|SP> {,#0}] ``` but they're missing the form that allows a zero immediate offset, for example: ``` ld64b x2, [x13, #0] st64b x16, [x13, #0] ``` Add support for zero immediate offsets for these instructions. [1] https://developer.arm.com/documentation/ddi0602/2022-09/Base-Instructions/LD64B--Single-copy-Atomic-64-byte-Load-