Regressions on trunk at revision 205506 vs revision 205504

[H.J. Lu x32]

New failures:

New passes:
FAIL: gcc.dg/torture/pr58143-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: gcc.dg/torture/pr58143-1.c  -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects  (test for excess errors)
FAIL: gfortran.dg/c_f_pointer_complex.f03  -O3 -fomit-frame-pointer  (test for excess errors)
FAIL: tmpdir-g++.dg-struct-layout-1/t012 cp_compat_y_tst.o compile