Regressions on trunk at revision 262469 vs revision 262428

[H.J. Lu ia32]

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:
FAIL: c-c++-common/asan/pr59063-2.c   -O0  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -O1  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -O2  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -O3 -g  (test for excess errors)
FAIL: c-c++-common/asan/pr59063-2.c   -Os  (test for excess errors)