Regressions on trunk at revision 182166 vs revision 182162

[Kirill Yukhin [ia32 Core i7 AVX]]

New failures:
FAIL: gcc.dg/vect/vect-33.c -flto scan-tree-dump-times vect "Alignment of access forced using peeling" 1
FAIL: gcc.dg/vect/vect-33.c scan-tree-dump-times vect "Alignment of access forced using peeling" 1
FAIL: gcc.dg/vect/vect-35-big-array.c -flto scan-tree-dump-times vect "can't determine dependence between" 1
FAIL: gcc.dg/vect/vect-35-big-array.c scan-tree-dump-times vect "can't determine dependence between" 1
FAIL: gcc.dg/vect/vect-6-big-array.c -flto scan-tree-dump-times vect "Vectorizing an unaligned access" 0
FAIL: gcc.dg/vect/vect-6-big-array.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
FAIL: gcc.dg/vect/vect-all-big-array.c -flto scan-tree-dump-times vect "Vectorizing an unaligned access" 0
FAIL: gcc.dg/vect/vect-all-big-array.c scan-tree-dump-times vect "Vectorizing an unaligned access" 0
FAIL: gcc.dg/vect/vect-outer-1-big-array.c -flto scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-1-big-array.c scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-1a-big-array.c -flto scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-1a-big-array.c scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-1b-big-array.c -flto scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-1b-big-array.c scan-tree-dump-times vect "strided access in outer loop" 1
FAIL: gcc.dg/vect/vect-outer-3a-big-array.c -flto scan-tree-dump-times vect "step doesn't divide the vector-size" 2
FAIL: gcc.dg/vect/vect-outer-3a-big-array.c scan-tree-dump-times vect "step doesn't divide the vector-size" 2
FAIL: gcc.dg/vect/vect-outer-4c-big-array.c -flto scan-tree-dump-times vect "zero step in outer loop." 1
FAIL: gcc.dg/vect/vect-outer-4c-big-array.c scan-tree-dump-times vect "zero step in outer loop." 1
FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c -flto scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
FAIL: gcc.dg/vect/vect-reduc-pattern-1c-big-array.c -flto scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
FAIL: gcc.dg/vect/vect-reduc-pattern-1c-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
FAIL: gcc.dg/vect/vect-reduc-pattern-2b-big-array.c -flto scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1
FAIL: gcc.dg/vect/vect-reduc-pattern-2b-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1

New passes: