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[Bug debug/43670] [4.5/4.6 Regression] "-fcompare-debug failure (length)" with -O -ftree-vrp
- 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: 8 Apr 2010 09:16:52 -0000
- Subject: [Bug debug/43670] [4.5/4.6 Regression] "-fcompare-debug failure (length)" with -O -ftree-vrp
- References: <bug-43670-14164@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from jakub at gcc dot gnu dot org 2010-04-08 09:16 -------
Subject: Bug 43670
Author: jakub
Date: Thu Apr 8 09:16:28 2010
New Revision: 158108
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158108
Log:
PR debug/43670
* cfgexpand.c (expand_debug_expr): If for non-NULL offset
op0 is not a MEM, just return NULL instead of assertion
failure.
(discover_nonconstant_array_refs): Don't walk debug stmts.
* gcc.dg/pr43670.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr43670.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/cfgexpand.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43670