Regressions on trunk at revision 191468 vs revision 191463

[H.J. Lu ia32]

New failures:

New passes:
FAIL: gcc.dg/guality/pr54200.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 20 z == 3
FAIL: gcc.dg/guality/vla-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 24 sizeof (a) == 17 * sizeof (short)