Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dmitry at zend dot com
Target Milestone: ---
GCC 8 stopped generation of RMW instructions and uses 3 instructions instead of
one. Although, this shouldn't a
--- Comment #2 from dmitry at zend dot com 2010-04-08 13:54 ---
yes. It's definitely the same issue.
The only additional note that __attribute__((hot)) doesn't fix the problem (as
I would expect tracing down optimize_bb_for_size_p()), but makes an additional
slowdown. In opp
owdown was removed in trunk, however I can't
check that it was done in a proper way.
--
Summary: GCC doesn't duplicate computed gotos for functions
marked as "hot"
Product: gcc
Version: 4.4.3
Status: UNCONFIRM
