Regressions on trunk at revision 233620 vs revision 233615

[H.J. Lu ia32]

New failures:
FAIL: gcc.target/i386/iamcu/test_passing_structs_and_unions.c compilation,  -Os  (internal compiler error)
FAIL: gcc.target/i386/iamcu/test_passing_structs.c compilation,  -Os  (internal compiler error)
FAIL: libffi.call/cls_12byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_16byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_18byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_19byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_20byte1.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_20byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_24byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_64byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_7_1_byte.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_9byte1.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_9byte2.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_double.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_float.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_longdouble.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split2.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split2.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split2.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split2.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split2.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/cls_align_longdouble_split.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_pointer.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_sint32.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_sint64.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_uint32.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_align_uint64.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_dbls_struct.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/cls_many_mixed_float_double.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct10.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct1.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct2.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct3.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct4.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct5.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct6.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct7.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct8.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct9.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/nested_struct.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/problem1.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/pyobjc-tc.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/stret_large2.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/stret_large2.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/stret_large2.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/stret_large2.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/stret_large2.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/stret_large.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/stret_large.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/stret_large.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/stret_large.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/stret_large.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/stret_medium2.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/stret_medium2.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/stret_medium2.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/stret_medium2.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/stret_medium2.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/stret_medium.c -W -Wall -Wno-psabi -O0 (test for excess errors)
FAIL: libffi.call/stret_medium.c -W -Wall -Wno-psabi -O2 -fomit-frame-pointer (test for excess errors)
FAIL: libffi.call/stret_medium.c -W -Wall -Wno-psabi -O2 (test for excess errors)
FAIL: libffi.call/stret_medium.c -W -Wall -Wno-psabi -O3 (test for excess errors)
FAIL: libffi.call/stret_medium.c -W -Wall -Wno-psabi -Os (test for excess errors)
FAIL: libffi.call/testclosure.c -W -Wall -Wno-psabi -Os (test for excess errors)

New passes: