Regressions on trunk at revision 239518 vs revision 239494

[H.J. Lu]

New failures:

New passes:
FAIL: gcc.dg/tree-prof/val-prof-7.c scan-ipa-dump profile "Single value 111 stringop transformation on __builtin_bzero"
FAIL: gcc.dg/tree-prof/val-prof-7.c scan-ipa-dump profile "Single value 111 stringop transformation on __builtin_memcpy"
FAIL: gcc.dg/tree-prof/val-prof-7.c scan-ipa-dump profile "Single value 111 stringop transformation on __builtin_mempcpy"
FAIL: gcc.dg/tree-prof/val-prof-7.c scan-ipa-dump profile "Single value 111 stringop transformation on __builtin_memset"