[Bug tree-optimization/40062] [4.3 Regression] high memory usage and compile time in SCEV cprop with -O3

2009-09-08 Thread rguenth at gcc dot gnu dot org 


--- Comment #10 from rguenth at gcc dot gnu dot org  2009-09-08 13:43 
---
*** Bug 41306 has been marked as a duplicate of this bug. ***


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 CC||m dot hermes at uu dot nl


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40062

[Bug tree-optimization/40062] [4.3 Regression] high memory usage and compile time in SCEV cprop with -O3

2009-05-08 Thread rguenth at gcc dot gnu dot org 


--- Comment #7 from rguenth at gcc dot gnu dot org  2009-05-08 12:39 ---
Fixed on trunk and for 4.4.1 sofar.


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

  Known to fail||4.3.3 4.4.0
  Known to work||4.4.1 4.5.0
Summary|[4.3/4.4/4.5 Regression]|[4.3 Regression] high memory
   |high memory usage and   |usage and compile time in
   |compile time in SCEV cprop  |SCEV cprop with -O3
   |with -O3|


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40062

[Bug tree-optimization/40062] [4.3 Regression] high memory usage and compile time in SCEV cprop with -O3

2009-05-08 Thread rguenth at gcc dot gnu dot org 


--- Comment #8 from rguenth at gcc dot gnu dot org  2009-05-08 14:14 ---
Fixed.


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution||FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40062

[Bug tree-optimization/40062] [4.3 Regression] high memory usage and compile time in SCEV cprop with -O3

2009-05-08 Thread rguenth at gcc dot gnu dot org 


--- Comment #9 from rguenth at gcc dot gnu dot org  2009-05-08 14:14 ---
Subject: Bug 40062

Author: rguenth
Date: Fri May  8 14:14:25 2009
New Revision: 147288

URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=147288
Log:
2009-05-08  Richard Guenther  rguent...@suse.de

PR tree-optimization/40062
* tree-scalar-evolution.c (follow_ssa_edge_in_condition_phi):
Avoid exponential behavior.

Modified:
branches/gcc-4_3-branch/gcc/ChangeLog
branches/gcc-4_3-branch/gcc/tree-scalar-evolution.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40062