Regressions on trunk at revision 237087 vs revision 237053

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/tree-prof/peel-1.c scan-tree-dump cunroll "Peeled loop ., 2 times"
FAIL: gcc.dg/tree-prof/peel-1.c scan-tree-dump cunroll "Peeled loop ., 2 times"
FAIL: gcc.target/i386/interrupt-redzone-2.c scan-assembler-times (?:sub|add)(?:l|q)[\\t ]*\\$[0-9]*,[\\t ]*%[re]?sp 2

New passes:
FAIL: gfortran.dg/parent_result_ref_2.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test