[Bug tree-optimization/49822] [4.7 regression] Segfault in remove_prop_source_from_use

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49822

Richard Earnshaw rearnsha at gcc dot gnu.org changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution||FIXED

--- Comment #3 from Richard Earnshaw rearnsha at gcc dot gnu.org 2011-07-26 
11:04:23 UTC ---
Confirmed as fixing original problem.

[Bug tree-optimization/49822] [4.7 regression] Segfault in remove_prop_source_from_use

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49822

Richard Guenther rguenth at gcc dot gnu.org changed:

   What|Removed |Added

 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2011.07.25 10:17:10
 AssignedTo|unassigned at gcc dot   |rguenth at gcc dot gnu.org
   |gnu.org |
 Ever Confirmed|0   |1

--- Comment #1 from Richard Guenther rguenth at gcc dot gnu.org 2011-07-25 
10:17:10 UTC ---
Confirmed.  Reproduced with a cross to arm-linux-eabi.  I have a patch.

[Bug tree-optimization/49822] [4.7 regression] Segfault in remove_prop_source_from_use

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49822

--- Comment #2 from Richard Guenther rguenth at gcc dot gnu.org 2011-07-25 
14:15:06 UTC ---
Author: rguenth
Date: Mon Jul 25 14:15:02 2011
New Revision: 176745

URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=176745
Log:
2011-07-25  Richard Guenther  rguent...@suse.de

PR tree-optimization/49822
* tree-ssa-forwprop.c (remove_prop_source_from_use): Robustify
more.  Make sure to preserve stmts with side-effects.  Properly
handle virtual defs, follow a longer def chain.

Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-ssa-forwprop.c

[Bug tree-optimization/49822] [4.7 regression] Segfault in remove_prop_source_from_use

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49822

Andrew Pinski pinskia at gcc dot gnu.org changed:

   What|Removed |Added

   Target Milestone|--- |4.7.0
Summary|[gcc-4.7 regression]|[4.7 regression] Segfault
   |Segfault in |in
   |remove_prop_source_from_use |remove_prop_source_from_use