[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#1813841 <https://reviews.llvm.org/D70680#1813841>, @dnsampaio wrote:

> Looking into `CodeGen/Thumb2/thumb2-mov.ll` test failure.


Seems like a peephole optimizer inverting the two operands, without validating their register types.


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