Regressions on trunk at revision 170321 vs revision 170320

[H.J. Lu ia32]

New failures:
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari1 == 2 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari2 == 3 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari3 == 2 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari4 == 3 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari5 == 4 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto  line 17 vari6 == 5 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari1 == 2 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari2 == 3 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari3 == 2 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari4 == 3 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari5 == 4 * 17
FAIL: gcc.dg/guality/pr41353-1.c  -O2 -flto -flto-partition=none  line 17 vari6 == 5 * 17
FAIL: gcc.dg/guality/pr41353-2.c  -O2 -flto  line 13 vari1 == 2 * 17
FAIL: gcc.dg/guality/pr41353-2.c  -O2 -flto  line 13 vari2 == 3 * 17
FAIL: gcc.dg/guality/pr41353-2.c  -O2 -flto -flto-partition=none  line 13 vari1 == 2 * 17
FAIL: gcc.dg/guality/pr41353-2.c  -O2 -flto -flto-partition=none  line 13 vari2 == 3 * 17
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto  line 24 sizeof (a) == 17 * sizeof (short)
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -flto-partition=none  line 24 sizeof (a) == 17 * sizeof (short)

New passes:
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -flto  line 42 varb == 2
FAIL: gcc.dg/guality/pr43077-1.c  -O2 -flto -flto-partition=none  line 42 varb == 2
FAIL: gcc.dg/guality/pr43479.c  -O2 -flto  line 13 h == 9
FAIL: gcc.dg/guality/pr43479.c  -O2 -flto  line 18 h == 9
FAIL: gcc.dg/guality/pr43479.c  -O2 -flto -flto-partition=none  line 13 h == 9
FAIL: gcc.dg/guality/pr43479.c  -O2 -flto -flto-partition=none  line 18 h == 9