Regressions on trunk at revision 166752 vs revision 166747

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: g++.dg/torture/pr34850.C  -O0  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O0  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O1  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O1  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2 -flto  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2 -flto  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2 -flto -flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O2 -flto -flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -Os  (test for excess errors)
FAIL: g++.dg/torture/pr34850.C  -Os  (test for excess errors)