I6400 scheduling.

gcc/
	* config/mips/i6400.md: New file.
	* config/mips/mips-cpus.def (mips32r6): Change to PROCESSOR_I6400.
	(mips64r6): Likewise.
	(i6400): Define.
	* config/mips/mips-tables.opt: Regenerate.
	* config/mips/mips.c (mips_rtx_cost_data): Add I6400 processor.
	(mips_issue_rate): Add support for i6400.
	(mips_multipass_dfa_lookahead): Likewise.
	* config/mips/mips.h (TUNE_I6400): Define.
	* config/mips/mips.md: Include i6400.md.
	(processor): Add i6400.
	* doc/invoke.texi (-march=@var{arch}): Add i6400.

From-SVN: r226090

8 files changed, 184 insertions, 4 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 51649b6..c034124 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,18 @@
+2015-07-23  Prachi Godbole  <prachi.godbole@imgtec.com>
+
+	* config/mips/i6400.md: New file.
+	* config/mips/mips-cpus.def (mips32r6): Change to PROCESSOR_I6400.
+	(mips64r6): Likewise.
+	(i6400): Define.
+	* config/mips/mips-tables.opt: Regenerate.
+	* config/mips/mips.c (mips_rtx_cost_data): Add I6400 processor.
+	(mips_issue_rate): Add support for i6400.
+	(mips_multipass_dfa_lookahead): Likewise.
+	* config/mips/mips.h (TUNE_I6400): Define.
+	* config/mips/mips.md: Include i6400.md.
+	(processor): Add i6400.
+	* doc/invoke.texi (-march=@var{arch}): Add i6400.
+
 2015-07-23  Richard Biener  <rguenther@suse.de>
 
 	PR middle-end/66916
diff --git a/gcc/config/mips/i6400.md b/gcc/config/mips/i6400.md
new file mode 100644
index 0000000..a32086f
--- /dev/null
+++ b/gcc/config/mips/i6400.md
@@ -0,0 +1,142 @@
+;; DFA-based pipeline description for I6400.
+;;
+;; Copyright (C) 2015 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 "i6400_int_pipe, i6400_mdu_pipe, i6400_fpu_short_pipe,
+		   i6400_fpu_long_pipe")
+
+(define_cpu_unit "i6400_gpmuldiv" "i6400_mdu_pipe")
+(define_cpu_unit "i6400_agen, i6400_alu1, i6400_lsu" "i6400_int_pipe")
+(define_cpu_unit "i6400_control, i6400_ctu, i6400_alu0" "i6400_int_pipe")
+
+;; Short FPU pipeline.
+(define_cpu_unit "i6400_fpu_short" "i6400_fpu_short_pipe")
+
+;; Long FPU pipeline.
+(define_cpu_unit "i6400_fpu_long, i6400_fpu_apu" "i6400_fpu_long_pipe")
+
+(define_reservation "i6400_control_ctu" "i6400_control, i6400_ctu")
+(define_reservation "i6400_control_alu0" "i6400_control, i6400_alu0")
+(define_reservation "i6400_agen_lsu" "i6400_agen, i6400_lsu")
+(define_reservation "i6400_agen_alu1" "i6400_agen, i6400_alu1")
+
+;;
+;; FPU pipe
+;;
+
+;; fabs, fneg
+(define_insn_reservation "i6400_fpu_fabs" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "fabs,fneg,fmove"))
+  "i6400_fpu_short, i6400_fpu_apu")
+
+;; fadd, fsub, fcvt
+(define_insn_reservation "i6400_fpu_fadd" 4
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "fadd, fcvt"))
+  "i6400_fpu_long, i6400_fpu_apu")
+
+;; fmul
+(define_insn_reservation "i6400_fpu_fmul" 5
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "fmul"))
+  "i6400_fpu_long, i6400_fpu_apu")
+
+;; div, sqrt (Double Precision)
+(define_insn_reservation "i6400_fpu_div_df" 30
+  (and (eq_attr "cpu" "i6400")
+       (and (eq_attr "mode" "DF")
+	    (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")))
+  "i6400_fpu_long+i6400_fpu_apu*30")
+
+;; div, sqrt (Single Precision)
+(define_insn_reservation "i6400_fpu_div_sf" 22
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt"))
+  "i6400_fpu_long+i6400_fpu_apu*22")
+
+;;
+;; Integer pipe
+;;
+
+;; and, lui, shifts, seb, seh
+(define_insn_reservation "i6400_int_logical" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "move_type" "logical,const,andi,sll0,signext"))
+  "i6400_control_alu0 | i6400_agen_alu1")
+
+;; addi, addiu, ori, xori, add, addu, sub, nor
+(define_insn_reservation "i6400_int_add" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "alu_type" "add,sub,or,xor,nor"))
+  "i6400_control_alu0 | i6400_agen_alu1")
+
+;; shifts, clo, clz, cond move, arith
+(define_insn_reservation "i6400_int_arith" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "shift,slt,move,clz,condmove,arith"))
+  "i6400_control_alu0 | i6400_agen_alu1")
+
+;; nop
+(define_insn_reservation "i6400_int_nop" 0
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "nop"))
+  "nothing")
+
+;; mult, multu, mul
+(define_insn_reservation "i6400_int_mult" 4
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "imul3,imul"))
+  "i6400_gpmuldiv")
+
+;; divide
+(define_insn_reservation "i6400_int_div" 32
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "idiv"))
+  "i6400_gpmuldiv*32")
+
+;; Load lb, lbu, lh, lhu, lq, lw, lw_i2f, lwxs
+(define_insn_reservation "i6400_int_load" 3
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "move_type" "load"))
+  "i6400_agen_lsu")
+
+;; store
+(define_insn_reservation "i6400_int_store" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "move_type" "store"))
+  "i6400_agen_lsu")
+
+;; prefetch
+(define_insn_reservation "i6400_int_prefetch" 3
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "prefetch"))
+  "i6400_agen_lsu")
+
+;; branch and jump
+(define_insn_reservation "i6400_int_branch" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "type" "branch,jump"))
+  "i6400_control_ctu")
+
+;; call
+(define_insn_reservation "i6400_int_call" 1
+  (and (eq_attr "cpu" "i6400")
+       (eq_attr "jal" "indirect,direct"))
+  "i6400_control_ctu")
diff --git a/gcc/config/mips/mips-cpus.def b/gcc/config/mips/mips-cpus.def
index 55c0cf6..e0c77f8 100644
--- a/gcc/config/mips/mips-cpus.def
+++ b/gcc/config/mips/mips-cpus.def
@@ -50,13 +50,13 @@ MIPS_CPU ("mips32r2", PROCESSOR_74KF2_1, 33, PTF_AVOID_BRANCHLIKELY)
    as mips32r2.  */
 MIPS_CPU ("mips32r3", PROCESSOR_M4K, 34, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("mips32r5", PROCESSOR_P5600, 36, PTF_AVOID_BRANCHLIKELY)
-MIPS_CPU ("mips32r6", PROCESSOR_W32, 37, PTF_AVOID_BRANCHLIKELY)
+MIPS_CPU ("mips32r6", PROCESSOR_I6400, 37, 0)
 MIPS_CPU ("mips64", PROCESSOR_5KC, 64, PTF_AVOID_BRANCHLIKELY)
 /* ??? For now just tune the generic MIPS64r2 and above for 5KC as well.   */
 MIPS_CPU ("mips64r2", PROCESSOR_5KC, 65, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("mips64r3", PROCESSOR_5KC, 66, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("mips64r5", PROCESSOR_5KC, 68, PTF_AVOID_BRANCHLIKELY)
-MIPS_CPU ("mips64r6", PROCESSOR_W64, 69, PTF_AVOID_BRANCHLIKELY)
+MIPS_CPU ("mips64r6", PROCESSOR_I6400, 69, 0)
 
 /* MIPS I processors.  */
 MIPS_CPU ("r3000", PROCESSOR_R3000, 1, 0)
@@ -170,3 +170,6 @@ MIPS_CPU ("octeon+", PROCESSOR_OCTEON, 65, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("octeon2", PROCESSOR_OCTEON2, 65, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("octeon3", PROCESSOR_OCTEON3, 65, PTF_AVOID_BRANCHLIKELY)
 MIPS_CPU ("xlp", PROCESSOR_XLP, 65, PTF_AVOID_BRANCHLIKELY)
+
+/* MIPS64 Release 6 processors.  */
+MIPS_CPU ("i6400", PROCESSOR_I6400, 69, 0)
diff --git a/gcc/config/mips/mips-tables.opt b/gcc/config/mips/mips-tables.opt
index 1f5daa4..b83658f 100644
--- a/gcc/config/mips/mips-tables.opt
+++ b/gcc/config/mips/mips-tables.opt
@@ -693,3 +693,5 @@ Enum(mips_arch_opt_value) String(octeon3) Value(100) Canonical
 EnumValue
 Enum(mips_arch_opt_value) String(xlp) Value(101) Canonical
 
+EnumValue
+Enum(mips_arch_opt_value) String(i6400) Value(102) Canonical
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index c3cd52d..bf0f84f 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -1293,6 +1293,19 @@ static const struct mips_rtx_cost_data
     COSTS_N_INSNS (68),           /* int_div_di */
 		     1,           /* branch_cost */
 		     4            /* memory_latency */
+  },
+  { /* I6400 */
+    COSTS_N_INSNS (4),            /* fp_add */
+    COSTS_N_INSNS (5),            /* fp_mult_sf */
+    COSTS_N_INSNS (5),            /* fp_mult_df */
+    COSTS_N_INSNS (32),           /* fp_div_sf */
+    COSTS_N_INSNS (32),           /* fp_div_df */
+    COSTS_N_INSNS (5),            /* int_mult_si */
+    COSTS_N_INSNS (5),            /* int_mult_di */
+    COSTS_N_INSNS (36),           /* int_div_si */
+    COSTS_N_INSNS (36),           /* int_div_di */
+		    2,            /* branch_cost */
+		    4             /* memory_latency */
   }
 };
 
@@ -13687,6 +13700,7 @@ mips_issue_rate (void)
     case PROCESSOR_OCTEON:
     case PROCESSOR_OCTEON2:
     case PROCESSOR_OCTEON3:
+    case PROCESSOR_I6400:
       return 2;
 
     case PROCESSOR_SB1:
@@ -13836,7 +13850,7 @@ mips_multipass_dfa_lookahead (void)
   if (TUNE_OCTEON)
     return 2;
 
-  if (TUNE_P5600)
+  if (TUNE_P5600 || TUNE_I6400)
     return 4;
 
   return 0;
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index 5bc562e..d17a833 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -277,6 +277,7 @@ struct mips_cpu_info {
 #define TUNE_SB1                    (mips_tune == PROCESSOR_SB1		\
 				     || mips_tune == PROCESSOR_SB1A)
 #define TUNE_P5600                  (mips_tune == PROCESSOR_P5600)
+#define TUNE_I6400                  (mips_tune == PROCESSOR_I6400)
 
 /* Whether vector modes and intrinsics for ST Microelectronics
    Loongson-2E/2F processors should be enabled.  In o32 pairs of
@@ -732,7 +733,7 @@ struct mips_cpu_info {
      %{march=mips64r2|march=loongson3a|march=octeon|march=xlp: -mips64r2} \
      %{march=mips64r3: -mips64r3} \
      %{march=mips64r5: -mips64r5} \
-     %{march=mips64r6: -mips64r6}}"
+     %{march=mips64r6|march=i6400: -mips64r6}}"
 
 /* A spec that injects the default multilib ISA if no architecture is
    specified.  */
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index cde2b4e..2954a12 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -70,6 +70,7 @@
   w32
   w64
   m5100
+  i6400
 ])
 
 (define_c_enum "unspec" [
@@ -1086,6 +1087,7 @@
   (eq_attr "type" "ghost")
   "nothing")
 
+(include "i6400.md")
 (include "p5600.md")
 (include "m5100.md")
 (include "4k.md")
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 413ac16..54e7a67 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -17041,6 +17041,7 @@ The processor names are:
 @samp{34kc}, @samp{34kf2_1}, @samp{34kf1_1}, @samp{34kn},
 @samp{74kc}, @samp{74kf2_1}, @samp{74kf1_1}, @samp{74kf3_2},
 @samp{1004kc}, @samp{1004kf2_1}, @samp{1004kf1_1},
+@samp{i6400},
 @samp{interaptiv},
 @samp{loongson2e}, @samp{loongson2f}, @samp{loongson3a},
 @samp{m4k},