Regressions on master at commit r12-5905 vs commit r12-5886 on Linux/x86_64

[H.J. Lu]

New failures:

New passes:
FAIL: 22_locale/time_get/get_time/char/2.cc execution test
FAIL: 22_locale/time_get/get_time/char/2.cc execution test
FAIL: 22_locale/time_get/get_time/char/2.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_locale.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_locale.cc execution test
FAIL: 22_locale/time_get/get_time/char/wrapped_locale.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/2.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/2.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/2.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_env.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_locale.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_locale.cc execution test
FAIL: 22_locale/time_get/get_time/wchar_t/wrapped_locale.cc execution test
FAIL: compiler driver --help=param option(s): "^ +-.*[^:.]$" absent from output: "  --param=max-inline-functions-called-once-loop-depth= Maximum loop depth of a call which is considered for inlining functions called once"
FAIL: compiler driver --help=param option(s): "^ +-.*[^:.]$" absent from output: "  --param=max-inline-functions-called-once-loop-depth= Maximum loop depth of a call which is considered for inlining functions called once"
FAIL: compiler driver --help=param option(s): "^ +-.*[^:.]$" absent from output: "  --param=max-inline-functions-called-once-loop-depth= Maximum loop depth of a call which is considered for inlining functions called once"
FAIL: compiler driver --help=params option(s): "[^.]$" absent from output: "e"
FAIL: compiler driver --help=params option(s): "[^.]$" absent from output: "e"
FAIL: compiler driver --help=params option(s): "[^.]$" absent from output: "e"
FAIL: g++.dg/warn/string1.C    (test for warnings, line 17)
FAIL: g++.dg/warn/string1.C    (test for warnings, line 17)
FAIL: g++.dg/warn/string1.C    (test for warnings, line 17)