Regressions on trunk at revision 256776 vs revision 256753

[H.J. Lu ia32 -fpic]

New failures:
FAIL: c-c++-common/Wrestrict.c  -Wc++-compat  memcpy (test for warnings, line 761)
FAIL: c-c++-common/Wrestrict.c  -std=gnu++11 memcpy (test for warnings, line 761)
FAIL: c-c++-common/Wrestrict.c  -std=gnu++14 memcpy (test for warnings, line 761)
FAIL: c-c++-common/Wrestrict.c  -std=gnu++98 memcpy (test for warnings, line 761)
FAIL: g++.dg/template/inherit4.C  -std=c++11 (test for excess errors)
FAIL: g++.dg/template/inherit4.C  -std=c++14 (test for excess errors)

New passes: