[Bug middle-end/55623] [ARM] GCC should not prefer long dependency chains, they inhibit performance on superscalar processors

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55623



Steven Bosscher <steven at gcc dot gnu.org> changed:



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                 CC|steven at gcc dot gnu.org   |



--- Comment #7 from Steven Bosscher <steven at gcc dot gnu.org> 2012-12-09 
12:14:50 UTC ---

(In reply to comment #6)

> Can you try using -frename-registers?



(Not that I expect it to help because the dependencies are not really

broken, but maybe the in-core reg-renamer likes this form better...)