[PATCH] [ARM] Add earlyclobber constraint to pre/post-indexed ARM STR instructions.

[Tilmann Scheller]

Hi,

attached is a patch for PR20323.

I expect that there are some more ARM load/store instructions which lack the earlyclobber constraint, I plan to go through all of them and submit additional patches accordingly.

It looks like this an ARM-only issue (e.g. Thumb2 is not affected).

Regards,

Tilmann
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