[PATCH] D73176: [ARM] Fix dropped dollar sign from symbols in branch targets

[Momchil Velikov via Phabricator via llvm-commits]

chill added a comment.

There's obviously lexer ambiguity in interpreting, e.g. the character sequence `$4` as a single `<identifier>` token, or as the two tokens `$` and a `<constant>`.
Looks like the tokenisation needs to be context dependent: in certain directives (`.global $4`) and instructions (`b $4`) the sequence needs to be interpreted a single identifier, and
in other contexts (`ldr r0, [r0, $4]`)  as two separate tokens.


Repository:
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  https://reviews.llvm.org/D73176/new/

https://reviews.llvm.org/D73176