Regressions on trunk at revision 228292 vs revision 228223

[H.J. Lu ia32]

New failures:

New passes:
FAIL: gcc.dg/graphite/interchange-10.c execution test
FAIL: gcc.dg/graphite/interchange-11.c execution test
FAIL: gcc.dg/graphite/interchange-1.c execution test
FAIL: gcc.dg/graphite/interchange-3.c execution test
FAIL: gcc.dg/graphite/interchange-4.c execution test
FAIL: gcc.dg/graphite/interchange-7.c execution test
FAIL: gcc.dg/graphite/pr46185.c execution test
FAIL: gcc.dg/graphite/uns-block-1.c execution test
FAIL: gcc.dg/graphite/uns-interchange-12.c execution test
FAIL: gcc.dg/graphite/uns-interchange-14.c execution test
FAIL: gcc.dg/graphite/uns-interchange-15.c execution test
FAIL: gcc.dg/graphite/uns-interchange-9.c execution test
FAIL: gcc.dg/graphite/uns-interchange-mvt.c execution test