Regressions on trunk at revision 262467 vs revision 262433

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.dg/tree-ssa/pr30375.c scan-tree-dump-times dse1 "MEM\\[\\(struct _s \\*\\)&signInfo \\+ [0-9]+B\\] = {}" 1
FAIL: libgomp.fortran/alloc-comp-3.f90   -O0  (test for excess errors)
FAIL: libgomp.fortran/alloc-comp-3.f90   -O2  (test for excess errors)

New passes: