[Bug tree-optimization/51179] poor vectorization on interlagos.

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51179

--- Comment #6 from Dominique d'Humieres <dominiq at lps dot ens.fr> 2011-11-22 21:08:47 UTC ---
> ... I attach the test code, which I use for testing.

Compiling the code with -O3 gives the following ICE

pr51179_1.f90: In function 'tiny_find':
pr51179_1.f90:3594:0: internal compiler error: in check_loop_closed_ssa_use, at
tree-ssa-loop-manip.c:422

(if nobody beats me, I'll try to reduce the code and open a new pr). On a
2.5Ghz Core2Duo, I get 4.1Gflops with -O2 -ftree-vectorize.