Regressions on trunk at revision 193767 vs revision 193764

[H.J. Lu Intel64 Core 2/i7]

New failures:
FAIL: 25_algorithms/find_if_not/requirements/explicit_instantiation/2.cc (test for excess errors)
FAIL: 28_regex/algorithms/regex_match/extended/string_range_00_03.cc (test for excess errors)
FAIL: Throw_2 compilation from source
FAIL: c-c++-common/torture/complex-sign-add.c  -O2  (test for excess errors)
FAIL: c-c++-common/torture/complex-sign-add.c  -O2  execution test
FAIL: c-c++-common/torture/complex-sign-add.c  -O3 -fomit-frame-pointer -funroll-loops  (test for excess errors)
FAIL: c-c++-common/torture/complex-sign-add.c  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: g++.dg/abi/covariant4.C -std=c++11 (test for excess errors)
FAIL: g++.dg/abi/covariant4.C -std=c++11 execution test
FAIL: g++.dg/abi/empty10.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/abi/empty10.C -std=gnu++98 execution test
FAIL: g++.old-deja/g++.eh/fntry1.C -std=c++11 (test for excess errors)
FAIL: g++.old-deja/g++.eh/fntry1.C -std=c++11 execution test
FAIL: g++.old-deja/g++.eh/ia64-1.C -std=gnu++11 (test for excess errors)
FAIL: g++.old-deja/g++.eh/ia64-1.C -std=gnu++11 execution test
FAIL: g++.old-deja/g++.pt/deduct5.C -std=c++11 (test for excess errors)
FAIL: g++.old-deja/g++.pt/deduct5.C -std=c++11 execution test
FAIL: gcc.c-torture/execute/20010711-1.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gcc.c-torture/execute/20021010-2.c compilation,  -O0 
FAIL: gcc.c-torture/execute/920810-1.c compilation,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.c-torture/execute/921013-1.c compilation,  -O2 -flto -fno-use-linker-plugin -flto-partition=none 
FAIL: gfortran.dg/exponent_2.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  (test for excess errors)
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/typebound_call_20.f03  -O3 -g  (test for excess errors)
FAIL: gfortran.dg/widechar_2.f90  -Os  (test for excess errors)

New passes:
FAIL: PR6204 -O3 compilation from source
FAIL: c-c++-common/asan/memcmp-1.c  -O2 -flto -fno-use-linker-plugin -flto-partition=none  output pattern test, is , should match ERROR: AddressSanitizer: stack-buffer-overflow.*(
FAIL: g++.dg/parse/concat1.C -std=c++11 (test for excess errors)
FAIL: g++.dg/parse/limits-initializer1.C -std=gnu++98  (test for errors, line 36)
FAIL: g++.dg/parse/limits-initializer1.C -std=gnu++98 (test for excess errors)
FAIL: gcc.c-torture/compile/20040310-1.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/execute/20030330-1.c compilation,  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions 
FAIL: gcc.c-torture/execute/divconst-2.c compilation,  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects 
FAIL: gcc.c-torture/unsorted/dump-noaddr.c,  -O0   -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,  -O0  comparison
FAIL: gcc.dg/lto/20091027-1 c_lto_20091027-1_0.o-c_lto_20091027-1_1.o link, -O0 -flto -flto-partition=1to1 -fno-use-linker-plugin 
FAIL: libgomp.c++/pr34513.C  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: libgomp.c++/pr34513.C  -O3 -fomit-frame-pointer  execution test
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for errors, line 22)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for errors, line 23)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for errors, line 24)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for errors, line 30)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for errors, line 34)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for warnings, line 20)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for warnings, line 20)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime  (test for warnings, line 26)
FAIL: objc.dg/property/at-property-5.m -fgnu-runtime (test for excess errors)