[PATCH] D29283: [ARM] Avoid using ARM instructions in Thumb mode

Sam Parker via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Jan 31 03:50:31 PST 2017

samparker added a comment.

Hi Renato,

Yes, I will look into the v7VE issue; however, I'm not sure how using an InstAlias would be possible since the operation of SWP and LDREX/STREX pair seems different to my understanding. The STREX returns a store success flag while SWP can atomically swap the value between a register and a memory location. Am I misunderstanding the use of these instructions?



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