Regressions on trunk at revision 229845 vs revision 229839

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.target/i386/iamcu/test_passing_floats.c execution,  -O3 -g 

New passes:
FAIL: gfortran.dg/goacc/private-3.f95   -O  (test for excess errors)
FAIL: gfortran.dg/goacc/private-3.f95   -O  (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/loop-red-v-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/loop-red-v-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/loop-red-v-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/loop-red-v-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/loop-red-w-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c/../libgomp.oacc-c-c++-common/loop-red-w-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/loop-red-w-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)
FAIL: libgomp.oacc-c++/../libgomp.oacc-c-c++-common/loop-red-w-2.c -DACC_DEVICE_TYPE_host=1 -DACC_MEM_SHARED=1 (test for excess errors)