Regressions on trunk at revision 205977 vs revision 205974

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -g -O2 -fcilkplus execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -g -O3 -fcilkplus execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O1 -fcilkplus execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O2 -fcilkplus execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O3 -fcilkplus execution test

New passes:
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -g -O2 -fcilkplus -L/export/gnu/import/git/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libcilkrts/.libs execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -g -O3 -fcilkplus -L/export/gnu/import/git/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libcilkrts/.libs execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O1 -fcilkplus -L/export/gnu/import/git/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libcilkrts/.libs execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O2 -fcilkplus -L/export/gnu/import/git/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libcilkrts/.libs execution test
FAIL: g++.dg/cilk-plus/CK/catch_exc.cc  -O3 -fcilkplus -L/export/gnu/import/git/gcc-test-intel64corei7/bld/x86_64-unknown-linux-gnu/32/libcilkrts/.libs execution test