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[Bug tree-optimization/31146] forwprop does not look through casts
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 12 Mar 2007 14:59:30 -0000
- Subject: [Bug tree-optimization/31146] forwprop does not look through casts
- References: <bug-31146-10053@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2007-03-12 14:59 -------
forwprop should NOT, I repeat should NOT look through casts for conditional if
the SSA_NAME that defines the cast is still used after the conditional.
Really this non zero optimization should be done by VRP.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31146