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Re: [PATCH] Fix GCSE and CSE with REG_EQUIV
- To: gcc-patches at gcc dot gnu dot org
- Subject: Re: [PATCH] Fix GCSE and CSE with REG_EQUIV
- From: Stan Shebs <shebs at apple dot com>
- Date: Wed, 25 Apr 2001 12:25:12 -0700
The patch to cse.c mentioned in
http://gcc.gnu.org/ml/gcc-patches/2001-04/msg00279.html
which was committed to the trunk a few days ago, breaks
bootstrapping on PowerPC Darwin, with miscompiled code in stage2
genattrtab that causes a segfault. (It's also been reported
as c/2639.)
I reverted the cse.c change in our internal repository, and it makes
things work again, but I did this through a process of elimination,
not by understanding the change. The mail leading up to this seems
a bit confused, with several topics under discussion, so if I could
get a single justification for the validity of this patch, I would
be very grateful.
Stan