[PATCH] D70680: [ARM][Thumb2] Fix ADD/SUB invalid writes to SP

[Diogo N. Sampaio via Phabricator via llvm-commits]

dnsampaio added a comment.

In D70680#1765493 <https://reviews.llvm.org/D70680#1765493>, @ostannard wrote:

> This looks like multiple bug-fixes in one patch, could they be split up?


Not that trivial, the `adr` bug only appears after splitting `t2(sub|add)ri`. And the hardcoded emission of t2 register +/- immediate needs to be fixed once we split the instructions for not emitting invalid instructions. As well the disassembly part fails if done apart.


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