Regressions on trunk at revision 194392 vs revision 194247

[H.J. Lu Intel64]

New failures:
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_PthreadExitTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_PthreadExitTest execution test
FAIL: gcc.dg/tree-ssa/ssa-pre-1.c scan-tree-dump-times pre "Eliminated: 1" 1
FAIL: gcc.dg/tree-ssa/ssa-pre-1.c scan-tree-dump-times pre "Eliminated: 1" 1

New passes:
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf1 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf1 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf2 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf2 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf3 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf3 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf4 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BitFieldPositiveTest x->bf4 = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BuiltinLongJmpTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_BuiltinLongJmpTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_CxxExceptionTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalStringConstTest Ident(p[15]) execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalStringConstTest Ident(p[15]) execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_LongJmpTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_LongJmpTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SigLongJmpTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SigLongJmpTest execution test