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[Bug middle-end/21846] [4.1 Regression] segfault in fold_binary compiling vpr with -O2 -funroll-loops
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Jun 2005 18:07:52 -0000
- Subject: [Bug middle-end/21846] [4.1 Regression] segfault in fold_binary compiling vpr with -O2 -funroll-loops
- References: <20050531193310.21846.janis@gcc.gnu.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2005-06-05 18:07 -------
Subject: Bug 21846
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: rakdver@gcc.gnu.org 2005-06-05 18:07:44
Modified files:
gcc : ChangeLog tree-cfg.c tree-flow.h
tree-scalar-evolution.c tree-ssa-loop-niter.c
Log message:
PR tree-optimization/21846
* tree-cfg.c (replace_uses_by): Update information stored at loops.
* tree-flow.h (substitute_in_loop_info): Declare.
* tree-scalar-evolution.c (initialize_scalar_evolutions_analyzer):
Ensure that chrec_dont_know and chrec_known have a type.
* tree-ssa-loop-niter.c (substitute_in_loop_info): New function.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9045&r2=2.9046
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&r1=2.202&r2=2.203
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.116&r2=2.117
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-scalar-evolution.c.diff?cvsroot=gcc&r1=2.26&r2=2.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-loop-niter.c.diff?cvsroot=gcc&r1=2.27&r2=2.28
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21846