Regressions on trunk at revision 218023 vs revision 218005

[Alexander V Tikhonov [Intel64 Core AVX2]]

New failures:
FAIL: gcc.dg/guality/pr54970.c   -Os  line 31 a[0] == 4
FAIL: gcc.dg/guality/pr54970.c   -Os  line 36 a[0] == 4
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 a[0] == 4
FAIL: g++.dg/ipa/devirt-42.C  -std=gnu++11  scan-ipa-dump-times inline "First type is base of second" 3
FAIL: g++.dg/ipa/devirt-42.C  -std=gnu++11  scan-ipa-dump-times inline "First type is base of second" 3
FAIL: g++.dg/ipa/devirt-42.C  -std=gnu++14  scan-ipa-dump-times inline "First type is base of second" 3
FAIL: g++.dg/ipa/devirt-42.C  -std=gnu++14  scan-ipa-dump-times inline "First type is base of second" 3

New passes:
FAIL: gcc.dg/guality/pr54970.c   -Os  line 31 *p == 6
FAIL: gcc.dg/guality/pr54970.c   -Os  line 31 *q == 5
FAIL: gcc.dg/guality/pr54970.c   -Os  line 36 *p == 26
FAIL: gcc.dg/guality/pr54970.c   -Os  line 36 *q == 5
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 p[-1] == 25
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 *p == 26
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 q[1] == 26
FAIL: gcc.dg/guality/pr54970.c   -Os  line 45 *q == 25