[Bug tree-optimization/38885] missed FRE with BIT_FIELD_REF and vectors

2011-10-05 Thread rguenth at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38885

--- Comment #4 from Richard Guenther rguenth at gcc dot gnu.org 2011-10-05 
14:35:22 UTC ---
Author: rguenth
Date: Wed Oct  5 14:35:15 2011
New Revision: 179556

URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=179556
Log:
2011-10-05  Richard Guenther  rguent...@suse.de

PR tree-optimization/38885
* tree-ssa-sccvn.c (vn_reference_lookup_3): Handle partial reads
from constants.

* gcc.dg/tree-ssa/ssa-fre-33.c: New testcase.

Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-fre-33.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-sccvn.c

[Bug tree-optimization/38885] missed FRE with BIT_FIELD_REF and vectors

2011-10-05 Thread rguenth at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38885

Richard Guenther rguenth at gcc dot gnu.org changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution||FIXED

--- Comment #5 from Richard Guenther rguenth at gcc dot gnu.org 2011-10-05 
14:57:06 UTC ---
Fixed for 4.7.0.

[Bug tree-optimization/38885] missed FRE with BIT_FIELD_REF and vectors

2010-09-24 Thread pinskia at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38885

--- Comment #2 from Andrew Pinski pinskia at gcc dot gnu.org 2010-09-24 
18:38:58 UTC ---
  global_res = { 0.0, 0.0, 0.0, 2.0e+0 };
  x.0_4 = BIT_FIELD_REF global_res, 32, 0;
  x = x.0_4;
  return 0;

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[Bug tree-optimization/38885] missed FRE with BIT_FIELD_REF and vectors

2010-09-24 Thread rguenth at gcc dot gnu.org 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38885

Richard Guenther rguenth at gcc dot gnu.org changed:

   What|Removed |Added

 Status|UNCONFIRMED |ASSIGNED
   Last reconfirmed||2010.09.24 18:43:43
   date||
 AssignedTo|unassigned at gcc dot   |rguenth at gcc dot gnu.org
   |gnu.org |
 Ever Confirmed|0   |1

--- Comment #3 from Richard Guenther rguenth at gcc dot gnu.org 2010-09-24 
18:43:43 UTC ---
Mine.

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[Bug tree-optimization/38885] missed FRE with BIT_FIELD_REF and vectors

2010-03-02 Thread pinskia at gcc dot gnu dot org 


--- Comment #1 from pinskia at gcc dot gnu dot org  2010-03-02 19:07 ---
Still happens as of today.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38885