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[Bug rtl-optimization/51924] [4.7 regression] wrong code with -O -free -fno-rename-registers -ftree-vectorize -funroll-loops
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 22 Jan 2012 14:35:44 +0000
- Subject: [Bug rtl-optimization/51924] [4.7 regression] wrong code with -O -free -fno-rename-registers -ftree-vectorize -funroll-loops
- Auto-submitted: auto-generated
- References: <bug-51924-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51924
--- Comment #5 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-01-22 14:35:44 UTC ---
Author: ebotcazou
Date: Sun Jan 22 14:35:39 2012
New Revision: 183390
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183390
Log:
PR rtl-optimization/51924
* ree.c (combine_set_extension): Improve debugging message.
(combine_reaching_defs): Likewise.
(get_defs): Rename confusingly named variable.
(find_and_remove_re): Skip a candidate if the extension expression has
been modified.
Added:
trunk/gcc/testsuite/gcc.dg/ext-elim-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ree.c
trunk/gcc/testsuite/ChangeLog