Regressions on trunk at revision 182288 vs revision 182280

[H.J. Lu Intel64 LTO/FDO]

New failures:

New passes:
FAIL: gcc.target/i386/bmi2-mulx32-1a.c scan-assembler-times bmi2_umulsidi3_1 1
FAIL: gcc.target/i386/bmi2-mulx32-2a.c scan-assembler-times mulx[ \\t]+[^\n]* 1
FAIL: libgomp.graphite/force-parallel-6.c execution test
WARNING: program timed out.