Regressions on trunk at revision 208316 vs revision 208299

[H.J. Lu x32]

New failures:
FAIL: gcc.dg/lto/20110201-1 c_lto_20110201-1_0.o-c_lto_20110201-1_0.o link,  -O0 -flto 
FAIL: gcc.dg/lto/pr55113 c_lto_pr55113_0.o assemble,  -flto -fshort-double -O0  (internal compiler error)

New passes: