Regressions on trunk at revision 182075 vs revision 182047

[H.J. Lu ia32]

New failures:
FAIL: libgomp.graphite/force-parallel-6.c execution test
WARNING: program timed out.

New passes:
FAIL: g++.dg/lto/20100302 cp_lto_20100302_0.o-cp_lto_20100302_1.o link, -flto -fabi-version=2 (internal compiler error)
FAIL: libgomp.graphite/force-parallel-1.c execution test
FAIL: libgomp.graphite/force-parallel-7.c execution test
FAIL: libgomp.graphite/force-parallel-8.c execution test