Regressions on trunk at revision 176330 vs revision 176318

[Kirill Yukhin [ia32 Core i7 AVX]]

New failures:

New passes:
FAIL: g++.dg/torture/pr49309.C  -O0  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O1  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O2  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O2 -flto  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O2 -flto -flto-partition=none  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -O3 -g  (test for excess errors)
FAIL: g++.dg/torture/pr49309.C  -Os  (test for excess errors)