Regressions on trunk at revision 217301 vs revision 217288

[H.J. Lu ia32]

New failures:
ERROR: gcc.c-torture/compile/pr35468.c   -O0 : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O1 : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O2 -flto -fno-use-linker-plugin -flto-partition=none : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O2 -flto -fuse-linker-plugin -fno-fat-lto-objects : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O2 : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O3 -fomit-frame-pointer : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -O3 -g : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.c-torture/compile/pr35468.c   -Os : unknown effective target keyword `no_const_addr_space' for " dg-require-effective-target 2 no_const_addr_space "
ERROR: gcc.dg/pr44194-1.c: syntax error in target selector "target  { { { { { i?86-*-* x86_64-*-* } && x32 } || lp64 } && { ! s390*-*-* } } && { ! hppa*64*-*-* } } && { ! alpha*-*-* }  &&  { ! powerpc*-*-linux* } || powerpc_elfv2  &&  ! nvptx-*-*" for " dg-do 1 compile { target { { { { { { { i?86-*-* x86_64-*-* } && x32 } || lp64 } && { ! s390*-*-* } } && { ! hppa*64*-*-* } } && { ! alpha*-*-* } } && { { ! powerpc*-*-linux* } || powerpc_elfv2 } && { ! nvptx-*-* } } } "

New passes: