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[Bug rtl-optimization/48141] [4.4/4.5/4.6 Regression] DSE compile time hog
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 26 Mar 2011 09:19:50 +0000
- Subject: [Bug rtl-optimization/48141] [4.4/4.5/4.6 Regression] DSE compile time hog
- Auto-submitted: auto-generated
- References: <bug-48141-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48141
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-26 09:19:39 UTC ---
Author: jakub
Date: Sat Mar 26 09:19:36 2011
New Revision: 171545
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=171545
Log:
Backport from mainline
2011-03-17 Jakub Jelinek <jakub@redhat.com>
PR rtl-optimization/48141
* dse.c (record_store): If no positions are needed in an insn
that cannot be deleted, at least unchain it from active_local_stores.
* gcc.dg/pr48141.c: New test.
Added:
branches/gcc-4_6-branch/gcc/testsuite/gcc.dg/pr48141.c
Modified:
branches/gcc-4_6-branch/gcc/ChangeLog
branches/gcc-4_6-branch/gcc/dse.c
branches/gcc-4_6-branch/gcc/testsuite/ChangeLog