Regressions on trunk at revision 256602 vs revision 256588

[H.J. Lu x32 -fpic]

New failures:

New passes:
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 34 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 39 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 34 c == &a[0]
FAIL: gcc.dg/guality/pr43051-1.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 39 c == &a[0]
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 b == 7
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 c == 11
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 d == 112
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none  line 16 e == 142
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 16 b == 7
FAIL: gcc.dg/guality/pr45882.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  line 16 c == 11