Regressions on trunk at revision 233909 vs revision 233876

[H.J. Lu ia32]

New failures:

New passes:
FAIL: gcc.dg/graphite/id-pr45230-1.c (internal compiler error)
FAIL: gcc.dg/graphite/id-pr45230-1.c (test for excess errors)
FAIL: gcc.target/i386/pr70007.c (test for excess errors)