[PATCH, i386, MPX 1/X] Support of Intel MPX ISA

[Ilya Enkovich]

Ping

2013/8/12 Ilya Enkovich <enkovich.gnu@gmail.com>:
> 2013/8/10 Joseph S. Myers <joseph@codesourcery.com>:
>> On Mon, 29 Jul 2013, Ilya Enkovich wrote:
>>
>>> Hi,
>>>
>>> Here is updated version of the patch. I removed redundant
>>> mode_for_bound, added comments to BOUND_TYPE and added -mmpx option.
>>> I also fixed bndmk/bndldx/bndstx constraints to avoid incorrect
>>> register allocation (created two new constraints for that).
>>
>> I think the -mmpx option should be documented in invoke.texi, and the new
>> machine modes / mode class should be documented in rtl.texi where other
>> machine modes / mode classes are documented.  Beyond that, I have no
>> comments on this patch revision.
>>
>> --
>> Joseph S. Myers
>> joseph@codesourcery.com
>
> Thanks! Here is a new revision with -mmpx and new machine modes /
> class documented.
> Is it good to install to trunk?
>
> Thanks,
> Ilya
> ---
> 2013-08-12  Ilya Enkovich  <ilya.enkovich@intel.com>
>
>         * mode-classes.def (MODE_BOUND): New.
>         * tree.def (BOUND_TYPE): New.
>         * genmodes.c (complete_mode): Support MODE_BOUND.
>         (BOUND_MODE): New.
>         (make_bound_mode): New.
>         * machmode.h (BOUND_MODE_P): New.
>         * stor-layout.c (int_mode_for_mode): Support MODE_BOUND.
>         (layout_type): Support BOUND_TYPE.
>         * tree-pretty-print.c (dump_generic_node): Support BOUND_TYPE.
>         * tree.c (build_int_cst_wide): Support BOUND_TYPE.
>         (type_contains_placeholder_1): Likewise.
>         * tree.h (BOUND_TYPE_P): New.
>         * varasm.c (output_constant): Support BOUND_TYPE.
>         * config/i386/constraints.md (B): New.
>         (Ti): New.
>         (Tb): New.
>         * config/i386/i386-modes.def (BND32): New.
>         (BND64): New.
>         * config/i386/i386-protos.h (ix86_bnd_prefixed_insn_p): New.
>         * config/i386/i386.c (isa_opts): Add mmpx.
>         (regclass_map): Add bound registers.
>         (dbx_register_map): Likewise.
>         (dbx64_register_map): Likewise.
>         (svr4_dbx_register_map): Likewise.
>         (PTA_MPX): New.
>         (ix86_option_override_internal) Support MPX ISA.
>         (ix86_code_end): Add MPX bnd prefix.
>         (output_set_got): Likewise.
>         (ix86_output_call_insn): Likewise.
>         (get_some_local_dynamic_name): Add '!' (MPX bnd) print prefix support.
>         (ix86_print_operand_punct_valid_p): Likewise.
>         (ix86_print_operand_address): Support UNSPEC_BNDMK_ADDR and
>         UNSPEC_BNDMK_ADDR.
>         (ix86_class_likely_spilled_p): Add bound regs support.
>         (ix86_hard_regno_mode_ok): Likewise.
>         (x86_order_regs_for_local_alloc): Likewise.
>         (ix86_bnd_prefixed_insn_p): New.
>         * config/i386/i386.h (FIRST_PSEUDO_REGISTER): Fix to new value.
>         (FIXED_REGISTERS): Add bound registers.
>         (CALL_USED_REGISTERS): Likewise.
>         (REG_ALLOC_ORDER): Likewise.
>         (HARD_REGNO_NREGS): Likewise.
>         (TARGET_MPX): New.
>         (VALID_BND_REG_MODE): New.
>         (FIRST_BND_REG): New.
>         (LAST_BND_REG): New.
>         (reg_class): Add BND_REGS.
>         (REG_CLASS_NAMES): Likewise.
>         (REG_CLASS_CONTENTS): Likewise.
>         (BND_REGNO_P): New.
>         (ANY_BND_REG_P): New.
>         (BNDmode): New.
>         (HI_REGISTER_NAMES): Add bound registers.
>         * config/i386/i386.md (UNSPEC_BNDMK): New.
>         (UNSPEC_BNDMK_ADDR): New.
>         (UNSPEC_BNDSTX): New.
>         (UNSPEC_BNDLDX): New.
>         (UNSPEC_BNDLDX_ADDR): New.
>         (UNSPEC_BNDCL): New.
>         (UNSPEC_BNDCU): New.
>         (UNSPEC_BNDCN): New.
>         (UNSPEC_MPX_FENCE): New.
>         (BND0_REG): New.
>         (BND1_REG): New.
>         (type): Add mpxmov, mpxmk, mpxchk, mpxld, mpxst.
>         (length_immediate): Likewise.
>         (prefix_0f): Likewise.
>         (memory): Likewise.
>         (prefix_rep): Check for bnd prefix.
>         (BND): New.
>         (bnd_ptr): New.
>         (BNDCHECK): New.
>         (bndcheck): New.
>         (*jcc_1): Add MPX bnd prefix and fix length.
>         (*jcc_2): Likewise.
>         (jump): Likewise.
>         (simple_return_internal): Likewise.
>         (simple_return_pop_internal): Likewise.
>         (*indirect_jump): Add MPX bnd prefix.
>         (*tablejump_1): Likewise.
>         (simple_return_internal_long): Likewise.
>         (simple_return_indirect_internal): Likewise.
>         (<mode>_mk): New.
>         (*<mode>_mk): New.
>         (mov<mode>): New.
>         (*mov<mode>_internal_mpx): New.
>         (<mode>_<bndcheck>): New.
>         (*<mode>_<bndcheck>): New.
>         (<mode>_ldx): New.
>         (*<mode>_ldx): New.
>         (<mode>_stx): New.
>         (*<mode>_stx): New.
>         * config/i386/predicates.md (lea_address_operand): Rename to...
>         (address_no_seg_operand): ... this.
>         (address_mpx_no_base_operand): New.
>         (address_mpx_no_index_operand): New.
>         (bnd_mem_operator): New.
>         * config/i386/i386.opt (mmpx): New.
>         * doc/invoke.texi: Add documentation for the flags -mmpx, -mno-mpx.
>         * doc/rtl.texi (BND32mode): New.
>         (BND64mode): New.
>         (MODE_BOUND): New.