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[Bug target/34091] [4.2/4.3 Regression] ICE in reload_cse_simplify_operands, at postreload.c:392




------- Comment #7 from dave at hiauly1 dot hia dot nrc dot ca  2007-11-24 19:27 -------
Subject: Re:  [4.2/4.3 Regression] ICE in
        reload_cse_simplify_operands, at postreload.c:392

The attached patch seems to fix the problem on the trunk.  However,
it doesn't work on 4.2.  It makes the problem reported in PR middle-end/32889
worse and I get bootstrap failure in stage2.

I've experimented with reload patterns to handle (mem (plus reg const))
but this doesn't seem to help with 32889.  So, I think there's a problem
with the handling of reg_equiv_alt_mem_list in 4.2.

Dave


------- Comment #8 from dave at hiauly1 dot hia dot nrc dot ca  2007-11-24 19:27 -------
Created an attachment (id=14631)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14631&action=view)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34091

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