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[Bug tree-optimization/37242] missed FRE opportunity because of signedness of addition
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 27 Aug 2008 17:50:30 -0000
- Subject: [Bug tree-optimization/37242] missed FRE opportunity because of signedness of addition
- References: <bug-37242-7849@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from bonzini at gnu dot org 2008-08-27 17:50 -------
Subject: Re: missed FRE opportunity because
of signedness of addition
Maybe we can lookup the non-GIMPLE operands in simplify_unary_expression
and replace them with existing SSA_NAMES if they have been value numbered.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37242