Regressions on trunk at revision 237653 vs revision 237646

[H.J. Lu x32]

New failures:

New passes:
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 4, loop depth 0, count 0, freq [1-4][^0-9]" 1
FAIL: gcc.dg/tree-ssa/attr-hotcold-2.c scan-tree-dump-times profile_estimate "block 5, loop depth 0, count 0, freq [6-9][0-9][0-9][0-9]" 1
FAIL: gfortran.dg/vect/vect-8.f90   -O   scan-tree-dump-times vect "vectorized 20 loops" 1