Hello! > Here is a patch introducing i386 target versions of Pointer Bounds Checker > builtins. > > 2013-11-15 Ilya Enkovich <ilya.enkov...@intel.com> > > * config/i386/i386-builtin-types.def (BND): New. > (ULONG): New. > (BND_FTYPE_PCVOID_ULONG): New. > (VOID_FTYPE_BND_PCVOID): New. >(VOID_FTYPE_PCVOID_PCVOID_BND): New. > (BND_FTYPE_PCVOID_PCVOID): New. > (BND_FTYPE_PCVOID): New. > (BND_FTYPE_BND_BND): New. > (PVOID_FTYPE_PVOID_PVOID_ULONG): New. > (PVOID_FTYPE_PCVOID_BND_ULONG): New. > (ULONG_FTYPE_VOID): New. > (PVOID_FTYPE_BND): New. > * config/i386/i386.c: Include tree-chkp.h, rtl-chkp.h. > (ix86_builtins): Add > IX86_BUILTIN_BNDMK, IX86_BUILTIN_BNDSTX, > IX86_BUILTIN_BNDLDX, IX86_BUILTIN_BNDCL, > IX86_BUILTIN_BNDCU, IX86_BUILTIN_BNDRET, > IX86_BUILTIN_BNDSET, IX86_BUILTIN_BNDNARROW, > IX86_BUILTIN_BNDINT, IX86_BUILTIN_ARG_BND, > IX86_BUILTIN_SIZEOF, IX86_BUILTIN_BNDLOWER, > IX86_BUILTIN_BNDUPPER. > (builtin_isa): Add leaf_p and nothrow_p fields. > (def_builtin): Initialize leaf_p and nothrow_p. > (ix86_add_new_builtins): Handle leaf_p and nothrow_p > flags. > (bdesc_mpx): New. > (bdesc_mpx_const): New. > (ix86_init_mpx_builtins): New. > (ix86_init_builtins): Call ix86_init_mpx_builtins. > (ix86_expand_builtin): expand IX86_BUILTIN_BNDMK, > IX86_BUILTIN_BNDSTX, IX86_BUILTIN_BNDLDX, > IX86_BUILTIN_BNDCL, IX86_BUILTIN_BNDCU, > IX86_BUILTIN_BNDRET, IX86_BUILTIN_BNDSET, > IX86_BUILTIN_BNDNARROW, IX86_BUILTIN_BNDINT, > IX86_BUILTIN_ARG_BND, IX86_BUILTIN_SIZEOF, > IX86_BUILTIN_BNDLOWER, IX86_BUILTIN_BNDUPPER.
+ /* Avoid registers which connot be used as index. */ + if (REGNO (op1) == VIRTUAL_INCOMING_ARGS_REGNUM + || REGNO (op1) == VIRTUAL_STACK_VARS_REGNUM + || REGNO (op1) == VIRTUAL_OUTGOING_ARGS_REGNUM) You can use index_register_operand predicate here. Uros.
