Regressions on 4.9 at revision 210297 vs revision 210049

[H.J. Lu x32]

New failures:
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++11  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++1y  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: g++.dg/ipa/devirt-11.C -std=gnu++98  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: gfortran.dg/wextra_1.f  -O   (test for warnings, line 4)

New passes: