Regressions on trunk at revision 215902 vs revision 215901

[H.J. Lu x32]

New failures:
FAIL: g++.dg/ipa/devirt-47.C  -std=gnu++11  scan-ipa-dump-times inline "Discovered a virtual call to a known target[^\\n]*C::_ZTh" 1
FAIL: g++.dg/ipa/devirt-47.C  -std=gnu++1y  scan-ipa-dump-times inline "Discovered a virtual call to a known target[^\\n]*C::_ZTh" 1
FAIL: g++.dg/ipa/devirt-47.C  -std=gnu++98  scan-ipa-dump-times inline "Discovered a virtual call to a known target[^\\n]*C::_ZTh" 1

New passes:
FAIL: g++.dg/ipa/devirt-24.C  -std=gnu++11  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: g++.dg/ipa/devirt-24.C  -std=gnu++1y  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: g++.dg/ipa/devirt-24.C  -std=gnu++98  scan-ipa-dump-times inline "Discovered a virtual call to a known target" 1
FAIL: g++.dg/ipa/devirt-25.C  -std=gnu++11  scan-ipa-dump cp "Type inconsistent devirtualization"
FAIL: g++.dg/ipa/devirt-25.C  -std=gnu++1y  scan-ipa-dump cp "Type inconsistent devirtualization"
FAIL: g++.dg/ipa/devirt-25.C  -std=gnu++98  scan-ipa-dump cp "Type inconsistent devirtualization"
FAIL: g++.dg/ipa/pr61540.C  -std=gnu++98 (internal compiler error)
FAIL: g++.dg/ipa/pr61540.C  -std=gnu++98 (test for excess errors)