Regressions on trunk at revision 193775 vs revision 193767

[H.J. Lu ia32 Core 2/i7]

New failures:
FAIL: 23_containers/vector/bool/modifiers/insert/31370.cc execution test
FAIL: 27_io/basic_stringbuf/overflow/wchar_t/1.cc execution test
FAIL: 28_regex/iterators/regex_iterator/typedefs.cc (test for excess errors)
FAIL: 28_regex/iterators/regex_token_iterator/ctors/char/default.cc (test for excess errors)
FAIL: gcc.c-torture/compile/pr46534.c  -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/pr46534.c  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: gcc.c-torture/compile/pr46534.c  -O3 -g  (test for excess errors)
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O3 -g   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -Os   -dumpbase dump1/dump-noaddr.c -DMASK=1 -x c --param ggc-min-heapsize=1 -fdump-ipa-all -fdump-rtl-all -fdump-tree-all -fdump-noaddr
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -O3 -g  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.000i.cgraph,  -Os  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.003t.original,  -Os  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.243t.statistics,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.243t.statistics,  -O3 -g  comparison
FAIL: gcc.c-torture/unsorted/dump-noaddr.c.243t.statistics,  -Os  comparison
FAIL: gcc.dg/vect/vect-outer-2a-big-array.c -flto execution test
FAIL: gcc.dg/vect/vect-outer-2a-big-array.c execution test
FAIL: gcc.dg/vect/vect-outer-2c-big-array.c execution test
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 24)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 25)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 26)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 27)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 35)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 36)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 37)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 38)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 41)
FAIL: gfortran.dg/integer_exponentiation_4.f90  -O   (test for errors, line 42)
FAIL: gfortran.dg/quad_2.f90  -O0  execution test
FAIL: gfortran.dg/quad_2.f90  -O1  execution test
FAIL: gfortran.dg/quad_2.f90  -O2  execution test
FAIL: gfortran.dg/quad_2.f90  -O3 -fomit-frame-pointer  execution test
FAIL: gfortran.dg/quad_2.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gfortran.dg/quad_2.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gfortran.dg/quad_2.f90  -O3 -g  execution test
FAIL: gfortran.dg/quad_2.f90  -Os  execution test

New passes: