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[Bug tree-optimization/46590] [4.5/4.6/4.7 Regression] long compile time with -O2 and many loops
- From: "matz at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 26 Jan 2012 15:50:43 +0000
- Subject: [Bug tree-optimization/46590] [4.5/4.6/4.7 Regression] long compile time with -O2 and many loops
- Auto-submitted: auto-generated
- References: <bug-46590-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46590
--- Comment #20 from Michael Matz <matz at gcc dot gnu.org> 2012-01-26 15:50:43 UTC ---
Author: matz
Date: Thu Jan 26 15:50:33 2012
New Revision: 183566
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183566
Log:
PR tree-optimization/46590
* cfgexpand.c: Revert last change (r183305).
* gimplify.c (gimplify_bind_expr): Add clobbers for all non-gimple
regs.
* tree-eh.c (cleanup_empty_eh): Try to optimize clobbers before
checking for emptiness.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cfgexpand.c
trunk/gcc/gimplify.c
trunk/gcc/tree-eh.c