[Bug tree-optimization/56145] [4.8 Regression] Use of too much optimizations -O2 -ffast-math -floop-parallelize-all

2013-03-02 Thread vchou79 at gmail dot com 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145



--- Comment #5 from Vincent vchou79 at gmail dot com 2013-03-03 05:00:12 UTC 
---

The problem started with (ppl changeover to isl) this revision

http://gcc.gnu.org/viewcvs?view=revisionrevision=189156

[Bug tree-optimization/56145] [4.8 Regression] Use of too much optimizations -O2 -ffast-math -floop-parallelize-all

2013-02-08 Thread rguenth at gcc dot gnu.org 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145



Richard Biener rguenth at gcc dot gnu.org changed:



   What|Removed |Added



 Target||x86_64-w64-mingw32

 Status|UNCONFIRMED |WAITING

   Last reconfirmed||2013-02-08

   Target Milestone|--- |4.8.0

Summary|[4.8.0 ICE] Use of too much |[4.8 Regression] Use of too

   |optimizations -O2   |much optimizations -O2

   |-ffast-math |-ffast-math

   |-floop-parallelize-all  |-floop-parallelize-all

 Ever Confirmed|0   |1



--- Comment #2 from Richard Biener rguenth at gcc dot gnu.org 2013-02-08 
15:46:54 UTC ---

Is this with a cross-compiler or a native compiler?

[Bug tree-optimization/56145] [4.8 Regression] Use of too much optimizations -O2 -ffast-math -floop-parallelize-all

2013-02-08 Thread vchou79 at gmail dot com 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145



--- Comment #3 from Vincent vchou79 at gmail dot com 2013-02-08 18:29:28 UTC 
---

(In reply to comment #2)

 Is this with a cross-compiler or a native compiler?



Cross compiler.

[Bug tree-optimization/56145] [4.8 Regression] Use of too much optimizations -O2 -ffast-math -floop-parallelize-all

2013-02-08 Thread vchou79 at gmail dot com 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56145



--- Comment #4 from Vincent vchou79 at gmail dot com 2013-02-09 00:36:41 UTC 
---

Hi Richard,



The same also with native win-64bits build.

host=x86_64-w64-mingw32

build=x86_64-slackware-linux

target=x86_64-w64-mingw32





gcc version 4.8.0 20130208 (experimental)

[gcc trunk revision 195894]

(mingw-w64 trunk revision 5583)



x86_64-w64-mingw32-gcc -m64 -O2 -floop-parallelize-all -ffast-math  -c layer3.i

layer3.c: In function 'decode_layer3_sideinfo':

layer3.c:1613:1: internal compiler error: Segmentation fault

Please submit a full bug report,

with preprocessed source if appropriate.

See http://gcc.gnu.org/bugs.html for instructions.