Regressions on trunk at revision 216605 vs revision 216599

[H.J. Lu x32]

New failures:

New passes:
FAIL: gcc.dg/guality/pr54693-2.c   -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  line 21 i == v + 1
FAIL: gcc.dg/guality/pr54693-2.c   -O3 -fomit-frame-pointer -funroll-loops  line 21 i == v + 1