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[Bug tree-optimization/49352] [4.7 Regression] -fcompare-debug failure with -O2 -ftree-vectorize
- From: "irar at il dot ibm.com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 10 Jun 2011 13:31:51 +0000
- Subject: [Bug tree-optimization/49352] [4.7 Regression] -fcompare-debug failure with -O2 -ftree-vectorize
- Auto-submitted: auto-generated
- References: <bug-49352-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49352
--- Comment #7 from Ira Rosen <irar at il dot ibm.com> 2011-06-10 13:30:52 UTC ---
(In reply to comment #6)
> Actually, should vect_is_slp_reduction be called at all if check_reduction
> is false? I think without check_reduction e.g. nothing ensures that code is
> commutative and associative...
Do you mean to avoid swapping of operands? We can pass a parameter to indicate
whether to swap. But I am ok with not calling it at all.
Thanks,
Ira