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[Bug rtl-optimization/42699] [4.3/4.4/4.5 Regression] ZERO_EXTRACT on lhs never optimized out
- From: "jakub 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 Jan 2010 20:25:27 -0000
- Subject: [Bug rtl-optimization/42699] [4.3/4.4/4.5 Regression] ZERO_EXTRACT on lhs never optimized out
- References: <bug-42699-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from jakub at gcc dot gnu dot org 2010-01-12 20:25 -------
Subject: Bug 42699
Author: jakub
Date: Tue Jan 12 20:25:10 2010
New Revision: 155844
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155844
Log:
PR rtl-optimization/42699
* cse.c (cse_insn): Optimize lhs ZERO_EXTRACT if only CONST_INTs are
involved.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cse.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42699