Regressions on trunk at revision 178713 vs revision 178707

[Kirill Yukhin [Intel64 Core i7 AVX]]

New failures:

New passes:
FAIL: gcc.dg/attr-invalid.c  (test for warnings, line 38)
FAIL: gcc.dg/attr-invalid.c  (test for warnings, line 38)
FAIL: gcc.dg/attr-invalid.c  (test for warnings, line 40)
FAIL: gcc.dg/attr-invalid.c  (test for warnings, line 40)