[Bug tree-optimization/46032] openmp inhibits loop vectorization

2012-07-06 Thread fchen0000 at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46032

Feng Chen  changed:

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--- Comment #7 from Feng Chen  2012-07-06 16:17:28 
UTC ---
Any update on this? I do see loops getting slower even for large nx*ny
sometimes after omp on gcc 4.6.2, e.g.,

#pragma omp parallel for
for(int iy=0; iy Good. But it Graphite breaks it, let's add Sebastian in CC..


[Bug libgcj/42750] OpenMP/gcc build fails with /usr/local/lib/libgmp.so: could not read symbols: File in wrong format

2011-05-26 Thread fchen0000 at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42750

Feng Chen  changed:

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--- Comment #2 from Feng Chen  2011-05-26 19:17:33 
UTC ---
Would some1 be able to point to me how to build (and keep) both 32bit and 64bit
version of libgmp in my system so the gcc can be built?
btw, I do not have root access for this particular machine so I always use
"./configure --prefix=$HOME/local"

(In reply to comment #1)
> This is related to PR 39747.  The issue is that you need both 32bit and 64bit
> libgmp for the target if you are compiling libjava also.