Regressions on trunk at revision 206077 vs revision 206044

[H.J. Lu Intel64 Core i7]

New failures:

New passes:
FAIL: g++.dg/ipa/devirt-13.C -std=gnu++11  scan-ipa-dump cgraph "Devirtualizing call"
FAIL: g++.dg/ipa/devirt-13.C -std=gnu++11  scan-ipa-dump cgraph "Devirtualizing call"
FAIL: g++.dg/ipa/devirt-13.C -std=gnu++98  scan-ipa-dump cgraph "Devirtualizing call"
FAIL: g++.dg/ipa/devirt-13.C -std=gnu++98  scan-ipa-dump cgraph "Devirtualizing call"
FAIL: g++.dg/opt/devirt2.C -std=gnu++11  scan-assembler-times xyzzy 2
FAIL: g++.dg/opt/devirt2.C -std=gnu++11  scan-assembler-times xyzzy 2
FAIL: g++.dg/opt/devirt2.C -std=gnu++98  scan-assembler-times xyzzy 2
FAIL: g++.dg/opt/devirt2.C -std=gnu++98  scan-assembler-times xyzzy 2