Regressions on trunk at revision 227920 vs revision 227899

[Intel Automatic Testing System [Intel64 Core AVXi]]

New failures:

New passes:
FAIL: gcc.dg/guality/pr54970.c   -Os  line 15 a[0] == 1
FAIL: gcc.dg/guality/pr54970.c   -Os  line 20 a[0] == 1
FAIL: gcc.dg/guality/pr54970.c   -Os  line 25 a[0] == 1
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