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[Bug tree-optimization/64541] FRE pass optimization failure
- From: "skvadrik at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 14 Jan 2015 11:56:43 +0000
- Subject: [Bug tree-optimization/64541] FRE pass optimization failure
- Auto-submitted: auto-generated
- References: <bug-64541-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64541
--- Comment #2 from Ulya <skvadrik at gmail dot com> ---
> we have to assume that p == q and thus the store to *q invalidates the previously load *p
I see.
It seemed to me from GIMPLE dumps that both cases are equally easy to optimize,
perhaps I'm missing something.