Regressions on trunk at revision 259753 vs revision 259748

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gcc.dg/lto/20081204-2 c_lto_20081204-2_0.o-c_lto_20081204-2_0.o link, -w -flto -fPIC -r -nostdlib (internal compiler error)
FAIL: gcc.dg/lto/20090914-2 c_lto_20090914-2_0.o-c_lto_20090914-2_0.o link, -O2 -flto -fuse-linker-plugin (internal compiler error)
FAIL: gcc.dg/lto/20091014-1 c_lto_20091014-1_0.o-c_lto_20091014-1_0.o link, -fPIC -r -nostdlib -flto (internal compiler error)
FAIL: gcc.dg/lto/20100603-1 c_lto_20100603-1_0.o-c_lto_20100603-1_0.o link, -O0 -flto -fuse-linker-plugin -fno-fat-lto-objects  (internal compiler error)
FAIL: gcc.dg/lto/20100603-1 c_lto_20100603-1_0.o-c_lto_20100603-1_0.o link, -O2 -flto -fuse-linker-plugin (internal compiler error)
FAIL: g++.dg/lto/20081120-1 cp_lto_20081120-1_0.o-cp_lto_20081120-1_1.o link, -flto -r -nostdlib (internal compiler error)
FAIL: g++.dg/lto/20081120-2 cp_lto_20081120-2_0.o-cp_lto_20081120-2_1.o link, -flto -r -nostdlib (internal compiler error)

New passes: