Regressions on trunk at revision 250090 vs revision 250083

[H.J. Lu ia32 -fpic]

New failures:
FAIL: gcc.dg/guality/pr36728-2.c   -O2  line 16 y == 2
FAIL: gcc.dg/guality/pr36728-2.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 y == 2
FAIL: gcc.dg/guality/pr36728-2.c   -O3 -g  line 16 y == 2
FAIL: gcc.dg/guality/pr36728-2.c   -Os  line 16 y == 2

New passes: