Regressions on trunk at revision 183652 vs revision 183645

[H.J. Lu ia32 Core 2/i7]

New failures:

New passes:
FAIL: gcc.dg/lto/trans-mem-1 c_lto_trans-mem-1_1.o assemble, -flto -fgnu-tm
FAIL: gcc.dg/lto/trans-mem-2 c_lto_trans-mem-2_0.o assemble, -flto -fgnu-tm
FAIL: gcc.dg/lto/trans-mem-3 c_lto_trans-mem-3_1.o assemble, -flto
FAIL: gcc.dg/lto/trans-mem-4 c_lto_trans-mem-4_0.o-c_lto_trans-mem-4_1.o link, -flto -fgnu-tm
FAIL: gcc.dg/lto/trans-mem-4 c_lto_trans-mem-4_1.o assemble, -flto -fgnu-tm