Regressions on trunk at revision 194435 vs revision 194392

[H.J. Lu x32]

New failures:

New passes:
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_FileNameInGlobalReportTest Ident(p[15]) execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalTest fs2[Ident(-1)] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalTest func_static15[Ident(15 + 9)] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalTest func_static15[Ident(15)] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalTest static110[Ident(110)] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_GlobalTest static110[Ident(110+7)] = 0 execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_PthreadExitTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SignalTest *c = 0 output pattern test, should match AddressSanitizer: SEGV on unknown address
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_SignalTest *c = 0 output pattern test, should match AddressSanitizer: SEGV on unknown address
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_ThreadStackReuseTest execution test
FAIL: g++.dg/asan/asan_test.C  -O2  AddressSanitizer_ThreadedTest ThreadedTestSpawn() output pattern test, should match Thread T.*created.*Thread T.*created.*Thread T.*created
FAIL: gcc.dg/builtin-object-size-8.c execution test