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[Bug debug/52001] [4.7 Regression] Huge compile-time regression with var-tracking
- From: "aoliva at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 25 Feb 2012 12:09:33 +0000
- Subject: [Bug debug/52001] [4.7 Regression] Huge compile-time regression with var-tracking
- Auto-submitted: auto-generated
- References: <bug-52001-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52001
--- Comment #5 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-02-25 12:09:33 UTC ---
Author: aoliva
Date: Sat Feb 25 12:09:27 2012
New Revision: 184571
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184571
Log:
PR debug/52001
* cselib.c (preserve_only_constants): Rename to...
(preserve_constants_and_equivs): ... this. Split out...
(invariant_or_equiv_p): ... this. Preserve plus expressions
of other preserved expressions too.
(cselib_reset_table): Adjust.
* var-tracking.c (reverse_op): Use canonical value to build
reverse operation.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cselib.c
trunk/gcc/var-tracking.c