Regressions on trunk at revision 230184 vs revision 230146

[H.J. Lu Intel64 -fpic -mcmodel=medium -mcmodel=large]

New failures:
FAIL: boehm-gc.c/gctest.c -O2 execution test
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++11  (test for warnings, line 111)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++11  (test for warnings, line 111)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++11  (test for warnings, line 111)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++14  (test for warnings, line 111)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++14  (test for warnings, line 111)
FAIL: g++.dg/cpp0x/Wattributes1.C  -std=c++14  (test for warnings, line 111)

New passes:
FAIL: gfortran.fortran-torture/execute/arraysave.f90 execution,  -O3 -g 
FAIL: gfortran.fortran-torture/execute/arraysave.f90 execution,  -O3 -g 
FAIL: gfortran.fortran-torture/execute/arraysave.f90 execution,  -O3 -g