[Bug middle-end/39326] Segmentation fault with -O1, out of memory with -O2

rguenth at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Mar 22 14:01:00 GMT 2013


--- Comment #51 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-22 14:00:25 UTC ---

>     (struct mem_ref): Replace mem member with ao_ref typed member.

RTL gcse (-O2) suffers from the same slowness in its dependence tests.  Caching
ao_ref instead of just mem and alias-set in RTL mem-attrs would improve
this tremendously.

A quick try reveals that gengtype is not at all happy with including
something in rtl.h though :/

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