[ARC] Add support for HS4x cpus.

From: Claudiu Zissulescu <claziss@synopsys.com>

This patch adds support for two ARCHS variations.

Ok to apply?
Claudiu

gcc/
2017-03-10  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-arch.h (arc_tune_attr): Add new tune parameters
	for ARCHS4x.
	* config/arc/arc-cpus.def (hs4x): New cpu.
	(hs4xd): Likewise.
	* config/arc/arc-tables.opt: Regenerate.
	* config/arc/arc.c (arc_sched_issue_rate): New function.
	(TARGET_SCHED_ISSUE_RATE): Define.
	(TARGET_SCHED_EXPOSED_PIPELINE): Likewise.
	* config/arc/arc.md (attr type): Add fpu_fuse, fpu_sdiv, fpu_ddiv,
	fpu_cvt.
	(attr tune): Add ARCHS4x tune values.
	(attr tune_dspmpy): Define.
	(*tst): Correct instruction type.
	* config/arc/arcHS.md: Don't use this automaton for ARCHS4x cpus.
	* config/arc/arcHS4x.md: New file.
	* config/arc/fpu.md: Update instruction type attributes.
	* config/arc/t-multilib: Regenerate.
---
 gcc/config/arc/arc-arch.h     |   5 +-
 gcc/config/arc/arc-cpus.def   |   8 +-
 gcc/config/arc/arc-tables.opt |   6 +
 gcc/config/arc/arc.c          |  19 +++
 gcc/config/arc/arc.md         |  24 +++-
 gcc/config/arc/arcHS.md       |   6 +
 gcc/config/arc/arcHS4x.md     | 221 ++++++++++++++++++++++++++++++++++
 gcc/config/arc/fpu.md         |  16 +--
 8 files changed, 289 insertions(+), 16 deletions(-)
 create mode 100644 gcc/config/arc/arcHS4x.md

* Claudiu Zissulescu <claziss@gmail.com> [2018-06-13 12:09:18 +0300]:

> From: Claudiu Zissulescu <claziss@synopsys.com>
> 
> This patch adds support for two ARCHS variations.
> 
> Ok to apply?
> Claudiu

Sorry for the delay, this looks fine.

Thanks,
Andrew



> 
> gcc/
> 2017-03-10  Claudiu Zissulescu  <claziss@synopsys.com>
> 
> 	* config/arc/arc-arch.h (arc_tune_attr): Add new tune parameters
> 	for ARCHS4x.
> 	* config/arc/arc-cpus.def (hs4x): New cpu.
> 	(hs4xd): Likewise.
> 	* config/arc/arc-tables.opt: Regenerate.
> 	* config/arc/arc.c (arc_sched_issue_rate): New function.
> 	(TARGET_SCHED_ISSUE_RATE): Define.
> 	(TARGET_SCHED_EXPOSED_PIPELINE): Likewise.
> 	* config/arc/arc.md (attr type): Add fpu_fuse, fpu_sdiv, fpu_ddiv,
> 	fpu_cvt.
> 	(attr tune): Add ARCHS4x tune values.
> 	(attr tune_dspmpy): Define.
> 	(*tst): Correct instruction type.
> 	* config/arc/arcHS.md: Don't use this automaton for ARCHS4x cpus.
> 	* config/arc/arcHS4x.md: New file.
> 	* config/arc/fpu.md: Update instruction type attributes.
> 	* config/arc/t-multilib: Regenerate.
> ---
>  gcc/config/arc/arc-arch.h     |   5 +-
>  gcc/config/arc/arc-cpus.def   |   8 +-
>  gcc/config/arc/arc-tables.opt |   6 +
>  gcc/config/arc/arc.c          |  19 +++
>  gcc/config/arc/arc.md         |  24 +++-
>  gcc/config/arc/arcHS.md       |   6 +
>  gcc/config/arc/arcHS4x.md     | 221 ++++++++++++++++++++++++++++++++++
>  gcc/config/arc/fpu.md         |  16 +--
>  8 files changed, 289 insertions(+), 16 deletions(-)
>  create mode 100644 gcc/config/arc/arcHS4x.md
> 
> diff --git a/gcc/config/arc/arc-arch.h b/gcc/config/arc/arc-arch.h
> index 64866dd529b..01f95946623 100644
> --- a/gcc/config/arc/arc-arch.h
> +++ b/gcc/config/arc/arc-arch.h
> @@ -73,7 +73,10 @@ enum arc_tune_attr
>      ARC_TUNE_ARC600,
>      ARC_TUNE_ARC700_4_2_STD,
>      ARC_TUNE_ARC700_4_2_XMAC,
> -    ARC_TUNE_CORE_3
> +    ARC_TUNE_CORE_3,
> +    ARC_TUNE_ARCHS4X,
> +    ARC_TUNE_ARCHS4XD,
> +    ARC_TUNE_ARCHS4XD_SLOW
>    };
>  
>  /* CPU specific properties.  */
> diff --git a/gcc/config/arc/arc-cpus.def b/gcc/config/arc/arc-cpus.def
> index 1fce81f6933..4aa422f1a39 100644
> --- a/gcc/config/arc/arc-cpus.def
> +++ b/gcc/config/arc/arc-cpus.def
> @@ -59,10 +59,12 @@ ARC_CPU (archs,	     hs, FL_MPYOPT_2|FL_DIVREM|FL_LL64, NONE)
>  ARC_CPU (hs34,	     hs, FL_MPYOPT_2, NONE)
>  ARC_CPU (hs38,	     hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64, NONE)
>  ARC_CPU (hs38_linux, hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64|FL_FPU_FPUD_ALL, NONE)
> +ARC_CPU (hs4x,  hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64, ARCHS4X)
> +ARC_CPU (hs4xd, hs, FL_MPYOPT_9|FL_DIVREM|FL_LL64, ARCHS4XD)
>  
> -ARC_CPU (arc600,	  6xx, FL_BS, ARC600)
> -ARC_CPU (arc600_norm,	  6xx, FL_BS|FL_NORM, ARC600)
> -ARC_CPU (arc600_mul64,	  6xx, FL_BS|FL_NORM|FL_MUL64, ARC600)
> +ARC_CPU (arc600,          6xx, FL_BS, ARC600)
> +ARC_CPU (arc600_norm,     6xx, FL_BS|FL_NORM, ARC600)
> +ARC_CPU (arc600_mul64,    6xx, FL_BS|FL_NORM|FL_MUL64, ARC600)
>  ARC_CPU (arc600_mul32x16, 6xx, FL_BS|FL_NORM|FL_MUL32x16, ARC600)
>  ARC_CPU (arc601,	  6xx, 0, ARC600)
>  ARC_CPU (arc601_norm,	  6xx, FL_NORM, ARC600)
> diff --git a/gcc/config/arc/arc-tables.opt b/gcc/config/arc/arc-tables.opt
> index 3b17b3de7d5..2afaf5bd83c 100644
> --- a/gcc/config/arc/arc-tables.opt
> +++ b/gcc/config/arc/arc-tables.opt
> @@ -63,6 +63,12 @@ Enum(processor_type) String(hs38) Value(PROCESSOR_hs38)
>  EnumValue
>  Enum(processor_type) String(hs38_linux) Value(PROCESSOR_hs38_linux)
>  
> +EnumValue
> +Enum(processor_type) String(hs4x) Value(PROCESSOR_hs4x)
> +
> +EnumValue
> +Enum(processor_type) String(hs4xd) Value(PROCESSOR_hs4xd)
> +
>  EnumValue
>  Enum(processor_type) String(arc600) Value(PROCESSOR_arc600)
>  
> diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
> index 2bedc9af37e..03a2f4223c0 100644
> --- a/gcc/config/arc/arc.c
> +++ b/gcc/config/arc/arc.c
> @@ -483,6 +483,22 @@ arc_autovectorize_vector_sizes (vector_sizes *sizes)
>      }
>  }
>  
> +
> +/* Implements target hook TARGET_SCHED_ISSUE_RATE.  */
> +static int
> +arc_sched_issue_rate (void)
> +{
> +  switch (arc_tune)
> +    {
> +    case TUNE_ARCHS4X:
> +    case TUNE_ARCHS4XD:
> +      return 3;
> +    default:
> +      break;
> +    }
> +  return 1;
> +}
> +
>  /* TARGET_PRESERVE_RELOAD_P is still awaiting patch re-evaluation / review.  */
>  static bool arc_preserve_reload_p (rtx in) ATTRIBUTE_UNUSED;
>  static rtx arc_delegitimize_address (rtx);
> @@ -565,6 +581,9 @@ static rtx arc_legitimize_address_0 (rtx, rtx, machine_mode mode);
>  #undef  TARGET_SCHED_ADJUST_PRIORITY
>  #define TARGET_SCHED_ADJUST_PRIORITY arc_sched_adjust_priority
>  
> +#undef TARGET_SCHED_ISSUE_RATE
> +#define TARGET_SCHED_ISSUE_RATE arc_sched_issue_rate
> +
>  #undef TARGET_VECTOR_MODE_SUPPORTED_P
>  #define TARGET_VECTOR_MODE_SUPPORTED_P arc_vector_mode_supported_p
>  
> diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
> index 091f1092bed..5610bab694c 100644
> --- a/gcc/config/arc/arc.md
> +++ b/gcc/config/arc/arc.md
> @@ -82,6 +82,7 @@
>  (include ("arc700.md"))
>  (include ("arcEM.md"))
>  (include ("arcHS.md"))
> +(include ("arcHS4x.md"))
>  
>  ;; Predicates
>  
> @@ -204,7 +205,7 @@
>     simd_vcompare, simd_vpermute, simd_vpack, simd_vpack_with_acc,
>     simd_valign, simd_valign_with_acc, simd_vcontrol,
>     simd_vspecial_3cycle, simd_vspecial_4cycle, simd_dma, mul16_em, div_rem,
> -   fpu, block"
> +   fpu, fpu_fuse, fpu_sdiv, fpu_ddiv, fpu_cvt, block"
>    (cond [(eq_attr "is_sfunc" "yes")
>  	 (cond [(match_test "!TARGET_LONG_CALLS_SET && (!TARGET_MEDIUM_CALLS || GET_CODE (PATTERN (insn)) != COND_EXEC)") (const_string "call")
>  		(match_test "flag_pic") (const_string "sfunc")]
> @@ -593,7 +594,8 @@
>  ;;   somehow modify them to become inelegible for delay slots if a decision
>  ;;   is made that makes conditional execution required.
>  
> -(define_attr "tune" "none,arc600,arc700_4_2_std,arc700_4_2_xmac, core_3"
> +(define_attr "tune" "none,arc600,arc700_4_2_std,arc700_4_2_xmac, core_3, \
> +archs4x, archs4xd, archs4xd_slow"
>    (const
>     (cond [(symbol_ref "arc_tune == TUNE_ARC600")
>  	  (const_string "arc600")
> @@ -602,7 +604,12 @@
>  	  (symbol_ref "arc_tune == TUNE_ARC700_4_2_XMAC")
>  	  (const_string "arc700_4_2_xmac")
>  	  (symbol_ref "arc_tune == ARC_TUNE_CORE_3")
> -	  (const_string "core_3")]
> +	  (const_string "core_3")
> +	  (symbol_ref "arc_tune == TUNE_ARCHS4X")
> +	  (const_string "archs4x")
> +	  (ior (symbol_ref "arc_tune == TUNE_ARCHS4XD")
> +	       (symbol_ref "arc_tune == TUNE_ARCHS4XD_SLOW"))
> +	  (const_string "archs4xd")]
>  	 (const_string "none"))))
>  
>  (define_attr "tune_arc700" "false,true"
> @@ -610,6 +617,15 @@
>  		(const_string "true")
>  		(const_string "false")))
>  
> +(define_attr "tune_dspmpy" "none, slow, fast"
> +  (const
> +  (cond [(ior (symbol_ref "arc_tune == TUNE_ARCHS4X")
> +	      (symbol_ref "arc_tune == TUNE_ARCHS4XD"))
> +	 (const_string "fast")
> +	 (symbol_ref "arc_tune == TUNE_ARCHS4XD_SLOW")
> +	 (const_string "slow")]
> +	(const_string "none"))))
> +
>  ;; Move instructions.
>  (define_expand "movqi"
>    [(set (match_operand:QI 0 "move_dest_operand" "")
> @@ -960,7 +976,7 @@
>      }
>    "
>    [(set_attr "iscompact" "maybe,maybe,false,false,false,false,false,false")
> -   (set_attr "type" "compare,compare,compare,compare,compare,compare,shift,compare")
> +   (set_attr "type" "compare,compare,compare,compare,compare,compare,binary,compare")
>     (set_attr "length" "*,*,4,4,4,4,4,8")
>     (set_attr "predicable" "no,yes,no,yes,no,no,no,yes")
>     (set_attr "cond" "set_zn")])
> diff --git a/gcc/config/arc/arcHS.md b/gcc/config/arc/arcHS.md
> index 2a8588a02e4..d49b90c4970 100644
> --- a/gcc/config/arc/arcHS.md
> +++ b/gcc/config/arc/arcHS.md
> @@ -25,32 +25,38 @@
>  
>  (define_insn_reservation "hs_data_load" 4
>    (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "load"))
>    "hs_issue+hs_ld_st,hs_ld_st,nothing*2")
>  
>  (define_insn_reservation "hs_data_store" 1
>    (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "store"))
>    "hs_issue+hs_ld_st")
>  
>  (define_insn_reservation "hs_alu0" 2
>    (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "cc_arith, two_cycle_core, shift, lr, sr"))
>    "hs_issue+x1,x2")
>  
>  (define_insn_reservation "hs_alu1" 4
>    (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "move, cmove, unary, binary, compare, misc"))
>    "hs_issue+x1, nothing*3")
>  
>  (define_insn_reservation "hs_divrem" 13
>    (and (match_test "TARGET_HS")
>         (match_test "TARGET_DIVREM")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "div_rem"))
>    "hs_issue+divrem_hs, (divrem_hs)*12")
>  
>  (define_insn_reservation "hs_mul" 3
>    (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "none")
>         (eq_attr "type" "mul16_em, multi, umulti"))
>    "hs_issue+mul_hs, nothing*3")
>  
> diff --git a/gcc/config/arc/arcHS4x.md b/gcc/config/arc/arcHS4x.md
> new file mode 100644
> index 00000000000..f804b6be694
> --- /dev/null
> +++ b/gcc/config/arc/arcHS4x.md
> @@ -0,0 +1,221 @@
> +;; DFA scheduling description of the Synopsys DesignWare ARC HS4x cpu
> +;; for GNU C compiler
> +;; Copyright (C) 2017 Free Software Foundation, Inc.
> +
> +;; This file is part of GCC.
> +
> +;; GCC is free software; you can redistribute it and/or modify
> +;; it under the terms of the GNU General Public License as published by
> +;; the Free Software Foundation; either version 3, or (at your option)
> +;; any later version.
> +
> +;; GCC is distributed in the hope that it will be useful,
> +;; but WITHOUT ANY WARRANTY; without even the implied warranty of
> +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +;; GNU General Public License for more details.
> +
> +;; You should have received a copy of the GNU General Public License
> +;; along with GCC; see the file COPYING3.  If not see
> +;; <http://www.gnu.org/licenses/>.
> +
> +(define_automaton "ARCHS4x")
> +
> +(define_cpu_unit "hs4x_issue0" "ARCHS4x")
> +(define_cpu_unit "hs4x_issue1" "ARCHS4x")
> +(define_cpu_unit "hs4x_ld_st" "ARCHS4x")
> +(define_cpu_unit "hs4x_divrem" "ARCHS4x")
> +(define_cpu_unit "hs4x_mult" "ARCHS4x")
> +(define_cpu_unit "hs4x_x1, hs4x_x2" "ARCHS4x")
> +(define_cpu_unit "hs4x_y1, hs4x_y2" "ARCHS4x")
> +
> +(define_insn_reservation "hs4x_brj_op" 1
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "call, call_no_delay_slot, uncond_branch, jump, \
> +branch, brcc,brcc_no_delay_slot, sfunc"))
> +  "hs4x_issue0")
> +
> +(define_insn_reservation "hs4x_data_load_op" 4
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "load"))
> +  "hs4x_issue1 + hs4x_ld_st,hs4x_ld_st")
> +
> +(define_insn_reservation "hs4x_data_store_op" 1
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "store"))
> +  "hs4x_issue1 + hs4x_ld_st")
> +
> +;; Advanced ALU
> +(define_insn_reservation "hs4x_adv_alue_op" 4
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "cc_arith, two_cycle_core, shift, lr, sr"))
> +  "(hs4x_issue0 | hs4x_issue1), hs4x_x1")
> +
> +(define_insn_reservation "hs4x_adv_alul_op" 6
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4xd")
> +       (eq_attr "type" "cc_arith, two_cycle_core, shift, lr, sr"))
> +  "(hs4x_issue0 | hs4x_issue1), nothing*2, hs4x_x2")
> +
> +;; Basic ALU
> +(define_insn_reservation "hs4x_basic_alue_op" 1
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "move, cmove, unary, binary, compare, misc"))
> +  "(hs4x_issue0 | hs4x_issue1) + hs4x_y1")
> +
> +(define_insn_reservation "hs4x_basic_alul_op" 4
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "move, cmove, unary, binary, compare, misc"))
> +  "(hs4x_issue0 | hs4x_issue1), nothing*2, hs4x_y2")
> +
> +(define_insn_reservation "hs4x_divrem_op" 13
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "div_rem"))
> +  "hs4x_issue0 + hs4x_divrem, (hs4x_divrem)*12")
> +
> +;;Consider the DSPMPY fast here
> +(define_insn_reservation "hs4x_mul_fast_op" 7
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune_dspmpy" "fast")
> +       (eq_attr "type" "mul16_em, multi, umulti"))
> +  "hs4x_issue0 + hs4x_mult")
> +
> +(define_insn_reservation "hs4x_mul_slow_op" 8
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune_dspmpy" "slow")
> +       (eq_attr "type" "mul16_em, multi, umulti"))
> +  "hs4x_issue0 + hs4x_mult")
> +
> +;; FPU unit
> +(define_insn_reservation "hs4x_fpu_op" 8
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "fpu"))
> +  "hs4x_issue0")
> +
> +;; FPU FUSE unit
> +(define_insn_reservation "hs4x_fpu_fuse_op" 12
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "fpu_fuse"))
> +  "hs4x_issue0")
> +
> +;; FPU SP SQRT/DIV unit
> +(define_insn_reservation "hs4x_fpu_sdiv_op" 20
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "fpu_sdiv"))
> +  "hs4x_issue0")
> +
> +;; FPU DP SQRT/DIV unit
> +(define_insn_reservation "hs4x_fpu_ddiv_op" 34
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "fpu_ddiv"))
> +  "hs4x_issue0")
> +
> +;; FPU CVT unit
> +(define_insn_reservation "hs4x_fpu_cvt_op" 5
> +  (and (match_test "TARGET_HS")
> +       (eq_attr "tune" "archs4x, archs4xd")
> +       (eq_attr "type" "fpu_cvt"))
> +  "hs4x_issue0")
> +
> +;; BYPASS Advanced ALU ->
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_divrem_op")
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_mul_*op")
> +(define_bypass 2 "hs4x_adv_alue_op" "hs4x_adv_alue_op")
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_basic_alue_op")
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_basic_alul_op")
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_data_load_op")
> +(define_bypass 0 "hs4x_adv_alue_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 2 "hs4x_adv_alue_op" "hs4x_data_store_op")
> +(define_bypass 1 "hs4x_adv_alue_op" "hs4x_fpu_*op")
> +
> +(define_bypass 2 "hs4x_adv_alul_op" "hs4x_basic_alul_op")
> +(define_bypass 2 "hs4x_adv_alul_op" "hs4x_adv_alul_op")
> +(define_bypass 2 "hs4x_adv_alul_op" "hs4x_mul_*op")
> +(define_bypass 0 "hs4x_adv_alul_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 4 "hs4x_adv_alul_op" "hs4x_divrem_op")
> +(define_bypass 5 "hs4x_adv_alul_op" "hs4x_fpu_*op")
> +
> +;; BYPASS Basic ALU ->
> +(define_bypass 0 "hs4x_basic_alue_op" "hs4x_data_store_op" "store_data_bypass_p")
> +
> +(define_bypass 1 "hs4x_basic_alul_op" "hs4x_basic_alul_op")
> +(define_bypass 1 "hs4x_basic_alul_op" "hs4x_adv_alul_op")
> +(define_bypass 0 "hs4x_basic_alul_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 1 "hs4x_basic_alul_op" "hs4x_mul_*op")
> +(define_bypass 3 "hs4x_basic_alul_op" "hs4x_divrem_op")
> +(define_bypass 3 "hs4x_basic_alul_op" "hs4x_fpu_*op")
> +
> +;; BYPASS LD ->
> +(define_bypass 1 "hs4x_data_load_op" "hs4x_basic_alul_op")
> +(define_bypass 1 "hs4x_data_load_op" "hs4x_adv_alul_op")
> +(define_bypass 3 "hs4x_data_load_op" "hs4x_divrem_op")
> +(define_bypass 3 "hs4x_data_load_op" "hs4x_data_load_op")
> +(define_bypass 3 "hs4x_data_load_op" "hs4x_mul_*op")
> +(define_bypass 0 "hs4x_data_load_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 3 "hs4x_data_load_op" "hs4x_fpu_*op")
> +
> +;; BYPASS FAST MPY ->
> +(define_bypass 4 "hs4x_mul_fast_op" "hs4x_basic_alul_op")
> +(define_bypass 4 "hs4x_mul_fast_op" "hs4x_adv_alul_op")
> +(define_bypass 4 "hs4x_mul_fast_op" "hs4x_mul_fast_op")
> +(define_bypass 6 "hs4x_mul_fast_op" "hs4x_divrem_op")
> +(define_bypass 0 "hs4x_mul_fast_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 6 "hs4x_mul_fast_op" "hs4x_fpu_*op")
> +
> +;; BYPASS SLOW MPY ->
> +(define_bypass 5 "hs4x_mul_slow_op" "hs4x_basic_alul_op")
> +(define_bypass 5 "hs4x_mul_slow_op" "hs4x_adv_alul_op")
> +(define_bypass 5 "hs4x_mul_slow_op" "hs4x_mul_slow_op")
> +(define_bypass 7 "hs4x_mul_slow_op" "hs4x_divrem_op")
> +(define_bypass 0 "hs4x_mul_slow_op" "hs4x_data_store_op" "store_data_bypass_p")
> +(define_bypass 7 "hs4x_mul_slow_op" "hs4x_fpu_*op")
> +
> +;;BYPASS FPU ->
> +(define_bypass 5 "hs4x_fpu_op" "hs4x_basic_alul_op")
> +(define_bypass 5 "hs4x_fpu_op" "hs4x_adv_alul_op")
> +(define_bypass 5 "hs4x_fpu_op" "hs4x_mul_*op")
> +(define_bypass 7 "hs4x_fpu_op" "hs4x_divrem_op")
> +(define_bypass 5 "hs4x_fpu_op" "hs4x_fpu_*op")
> +(define_bypass 0 "hs4x_fpu_op" "hs4x_data_store_op" "store_data_bypass_p")
> +
> +;;BYPASS FPU FUSE ->
> +(define_bypass 9  "hs4x_fpu_fuse_op" "hs4x_basic_alul_op")
> +(define_bypass 9  "hs4x_fpu_fuse_op" "hs4x_adv_alul_op")
> +(define_bypass 9  "hs4x_fpu_fuse_op" "hs4x_mul_*op")
> +(define_bypass 11 "hs4x_fpu_fuse_op" "hs4x_divrem_op")
> +(define_bypass 11 "hs4x_fpu_fuse_op" "hs4x_fpu_*op")
> +(define_bypass 0  "hs4x_fpu_fuse_op" "hs4x_data_store_op" "store_data_bypass_p")
> +
> +;;BYPASS FPU SP DIV ->
> +(define_bypass 16 "hs4x_fpu_sdiv_op" "hs4x_basic_alul_op")
> +(define_bypass 16 "hs4x_fpu_sdiv_op" "hs4x_adv_alul_op")
> +(define_bypass 16 "hs4x_fpu_sdiv_op" "hs4x_mul_*op")
> +(define_bypass 19 "hs4x_fpu_sdiv_op" "hs4x_divrem_op")
> +(define_bypass 19 "hs4x_fpu_sdiv_op" "hs4x_fpu_*op")
> +(define_bypass 0  "hs4x_fpu_sdiv_op" "hs4x_data_store_op" "store_data_bypass_p")
> +
> +;;BYPASS FPU DP DIV ->
> +(define_bypass 31 "hs4x_fpu_ddiv_op" "hs4x_basic_alul_op")
> +(define_bypass 31 "hs4x_fpu_ddiv_op" "hs4x_adv_alul_op")
> +(define_bypass 31 "hs4x_fpu_ddiv_op" "hs4x_mul_*op")
> +(define_bypass 34 "hs4x_fpu_ddiv_op" "hs4x_divrem_op")
> +(define_bypass 34 "hs4x_fpu_ddiv_op" "hs4x_fpu_*op")
> +(define_bypass 0  "hs4x_fpu_ddiv_op" "hs4x_data_store_op" "store_data_bypass_p")
> +
> +;;BYPASS FPU CVT ->
> +(define_bypass 1 "hs4x_fpu_cvt_op" "hs4x_basic_alul_op")
> +(define_bypass 1 "hs4x_fpu_cvt_op" "hs4x_adv_alul_op")
> +(define_bypass 1 "hs4x_fpu_cvt_op" "hs4x_mul_*op")
> +(define_bypass 4 "hs4x_fpu_cvt_op" "hs4x_divrem_op")
> +(define_bypass 4 "hs4x_fpu_cvt_op" "hs4x_fpu_*op")
> +(define_bypass 0 "hs4x_fpu_cvt_op" "hs4x_data_store_op" "store_data_bypass_p")
> diff --git a/gcc/config/arc/fpu.md b/gcc/config/arc/fpu.md
> index 5c56f76c679..de876cac0c1 100644
> --- a/gcc/config/arc/fpu.md
> +++ b/gcc/config/arc/fpu.md
> @@ -92,7 +92,7 @@
>     (set_attr "predicable" "yes,no,yes,no,no")
>     (set_attr "cond" "canuse,nocond,canuse_limm,nocond,nocond")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_fuse")])
>  
>  (define_insn "fnmasf4_fpu"
>    [(set (match_operand:SF 0 "register_operand"                  "=r,r,r,r,r")
> @@ -107,7 +107,7 @@
>     (set_attr "predicable" "yes,no,yes,no,no")
>     (set_attr "cond" "canuse,nocond,canuse_limm,nocond,nocond")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_fuse")])
>  
>  (define_expand "fmadf4"
>    [(match_operand:DF 0 "even_register_operand" "")
> @@ -177,7 +177,7 @@
>     (set_attr "predicable" "yes,no")
>     (set_attr "cond" "canuse,nocond")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_fuse")])
>  
>  (define_insn "fnmadf4_fpu"
>    [(set (match_operand:DF 0 "even_register_operand"                 "=r,r")
> @@ -190,7 +190,7 @@
>     (set_attr "predicable" "yes,no")
>     (set_attr "cond" "canuse,nocond")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_fuse")])
>  
>  ;; Division
>  (define_insn "*divsf3_fpu"
> @@ -203,7 +203,7 @@
>    "fsdiv%? %0,%1,%2"
>    [(set_attr "length" "4,4,8,8,8")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")
> +   (set_attr "type" "fpu_sdiv")
>     (set_attr "predicable" "yes,no,yes,no,no")
>     (set_attr "cond" "canuse,nocond,canuse_limm,nocond,nocond")
>     ])
> @@ -221,7 +221,7 @@
>    "TARGET_FP_SP_SQRT"
>    "fssqrt %0,%1"
>    [(set_attr "length" "4,8")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_sdiv")])
>  
>  ;; Comparison
>  (define_insn "*cmpsf_fpu"
> @@ -306,7 +306,7 @@
>    "fddiv%? %0,%1,%2"
>    [(set_attr "length" "4,4")
>     (set_attr "iscompact" "false")
> -   (set_attr "type" "fpu")
> +   (set_attr "type" "fpu_ddiv")
>     (set_attr "predicable" "yes,no")
>     (set_attr "cond" "canuse,nocond")
>     ])
> @@ -318,7 +318,7 @@
>    "TARGET_FP_DP_SQRT"
>    "fdsqrt %0,%1"
>    [(set_attr "length" "4")
> -   (set_attr "type" "fpu")])
> +   (set_attr "type" "fpu_ddiv")])
>  
>  ;; Comparison
>  (define_insn "*cmpdf_fpu"
> -- 
> 2.17.0
>

Committed,
Claudiu