[Bug tree-optimization/70729] Loop marked with omp simd pragma is not vectorized

[rguenther at suse dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70729

--- Comment #20 from rguenther at suse dot de <rguenther at suse dot de> ---
On Fri, 20 May 2016, schwab@linux-m68k.org wrote:

> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70729
> 
> --- Comment #18 from Andreas Schwab <schwab@linux-m68k.org> ---
> FAIL: gfortran.dg/graphite/pr68279.f90   -O  (internal compiler error)
> 
> /opt/gcc/gcc-20160520/gcc/testsuite/gfortran.dg/graphite/pr68279.f90:8:0:
> internal compiler error: Aborted
> 0xb9e487 crash_signal
>         ../../gcc/toplev.c:333
> 0x10f4473 extract_affine_chrec
>         ../../gcc/graphite-sese-to-poly.c:239
> 0x10f4473 extract_affine
>         ../../gcc/graphite-sese-to-poly.c:381
> 0x10f404f extract_affine
>         ../../gcc/graphite-sese-to-poly.c:421
> 0x10f404f extract_affine
>         ../../gcc/graphite-sese-to-poly.c:421
> 0x10f538b add_condition_to_pbb
>         ../../gcc/graphite-sese-to-poly.c:458
> 0x10f538b add_conditions_to_domain
>         ../../gcc/graphite-sese-to-poly.c:525
> 0x10f538b build_iteration_domains
>         ../../gcc/graphite-sese-to-poly.c:1017
> 0x10f5243 build_iteration_domains
>         ../../gcc/graphite-sese-to-poly.c:1040
> 0x10f5a6f build_poly_scop(scop*)
>         ../../gcc/graphite-sese-to-poly.c:1364
> 0x10df8d3 graphite_transform_loops()
>         ../../gcc/graphite.c:319
> 0x10dfe37 graphite_transforms
>         ../../gcc/graphite.c:356
> 0x10dfe37 execute
>         ../../gcc/graphite.c:433

I know.  GRAPHITE people need to look at this, I got lost trying to
fix it myself.