Regressions on trunk at revision 177575 vs revision 177573

[H.J. Lu Intel64]

New failures:
FAIL: PR3096 -O3 -findirect-dispatch execution - source compiled test
FAIL: PR3096 -O3 execution - source compiled test
FAIL: PR3096 -findirect-dispatch execution - source compiled test
FAIL: PR3096 execution - source compiled test
FAIL: gcc.target/i386/sse2-set-v8hi-1a.c execution test
FAIL: gcc.target/i386/sse2-set-v8hi-2a.c execution test
FAIL: gcc.target/i386/sse4_1-set-v16qi-1a.c execution test
FAIL: gcc.target/i386/sse4_1-set-v16qi-2a.c execution test
FAIL: gcc.target/i386/sse4_1-set-v16qi-3a.c execution test
FAIL: md5test -O3 -findirect-dispatch execution - source compiled test
FAIL: md5test -O3 execution - source compiled test
FAIL: md5test -findirect-dispatch execution - source compiled test
FAIL: md5test execution - source compiled test
FAIL: pr21785 -O3 -findirect-dispatch execution - source compiled test
FAIL: pr21785 -O3 execution - source compiled test
FAIL: pr21785 -findirect-dispatch execution - source compiled test
FAIL: pr21785 execution - source compiled test
FAIL: shatest -O3 -findirect-dispatch execution - source compiled test
FAIL: shatest -O3 execution - source compiled test
FAIL: shatest -findirect-dispatch execution - source compiled test
FAIL: shatest execution - source compiled test
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.
WARNING: program timed out.

New passes: