Regressions on trunk at revision 225936 vs revision 225916

[H.J. Lu x32 -fpic]

New failures:
FAIL: gfortran.dg/coarray_collectives_16.f90   -O   scan-tree-dump-times original "_gfortran_caf_co_reduce \\(&desc.., &fr, 4, _gfortran_caf_num_images \\(0, -1\\), &stat1, errmesg1, 0, 6\\);" 1
FAIL: gfortran.dg/coarray_collectives_16.f90   -O   scan-tree-dump-times original "_gfortran_caf_co_reduce \\(&desc.., &hc, 1, res, &stat3, errmesg3, 99, 8\\);" 1
FAIL: gfortran.dg/coarray_collectives_16.f90   -O   scan-tree-dump-times original "_gfortran_caf_co_reduce \\(&val2, &gz, 0, 4, &stat2, errmesg2, 0, 7\\);" 1
FAIL: gfortran.dg/graphite/vect-pr40979.f90   -O  (internal compiler error)
FAIL: gfortran.dg/graphite/vect-pr40979.f90   -O  (test for excess errors)

New passes: