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[PATCH v4 4/6, Committed] [MIPS] Add Loongson 3A1000 processor support


On Tue, Oct 16, 2018 at 10:50 AM Paul Hua <paul.hua.gm@gmail.com> wrote:
>
>
From ef10d77f03e693299611e6b4eee2ae6375a5841d Mon Sep 17 00:00:00 2001
From: Chenghua Xu <paul.hua.gm@gmail.com>
Date: Tue, 6 Nov 2018 21:12:46 +0800
Subject: [PATCH 4/6] Add support for Loongson 3A1000 processor.

gcc/
	* config/mips/loongson3a.md: Rename to ...
	* config/mips/gs464.md: ... here.
	* config/mips/mips-cpus.def: Define gs464; Add loongson3a
	as an alias of gs464 processor.
	* config/mips/mips-tables.opt: Regenerate.
	* config/mips/mips.c (mips_issue_rate): Use PROCESSOR_GS464
	instead of PROCESSOR_LOONGSON_3A.
	(mips_multipass_dfa_lookahead): Use TUNE_GS464 instead of
	TUNE_LOONGSON_3A.
	(mips_option_override): Enable MMI and EXT for gs464.
	* config/mips/mips.h: Rename TARGET_LOONGSON_3A to TARGET_GS464;
	Rename TUNE_LOONGSON_3A to TUNE_GS464.
	(MIPS_ISA_LEVEL_SPEC): Infer mips64r2 from gs464.
	(ISA_HAS_ODD_SPREG, ISA_AVOID_DIV_HILO, ISA_HAS_FUSED_MADD4,
	ISA_HAS_UNFUSED_MADD4): Use TARGET_GS464 instead of
	TARGET_LOONGSON_3A.
	* config/mips/mips.md: Include gs464.md instead of loongson3a.md.
	(processor): Add gs464;
	* doc/invoke.texi: Add gs464 to supported architectures.
---
 gcc/config/mips/gs464.md        | 137 ++++++++++++++++++++++++++++++++
 gcc/config/mips/loongson3a.md   | 137 --------------------------------
 gcc/config/mips/mips-cpus.def   |   3 +-
 gcc/config/mips/mips-tables.opt |  19 +++--
 gcc/config/mips/mips.c          |   6 +-
 gcc/config/mips/mips.h          |  17 ++--
 gcc/config/mips/mips.md         |   4 +-
 gcc/doc/invoke.texi             |   2 +-
 8 files changed, 165 insertions(+), 160 deletions(-)
 create mode 100644 gcc/config/mips/gs464.md
 delete mode 100644 gcc/config/mips/loongson3a.md

diff --git a/gcc/config/mips/gs464.md b/gcc/config/mips/gs464.md
new file mode 100644
index 00000000000..82efb66786f
--- /dev/null
+++ b/gcc/config/mips/gs464.md
@@ -0,0 +1,137 @@
+;; Pipeline model for Loongson gs464 cores.
+
+;; Copyright (C) 2011-2018 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/>.
+
+;; Uncomment the following line to output automata for debugging.
+;; (automata_option "v")
+
+;; Automaton for integer instructions.
+(define_automaton "gs464_a_alu")
+
+;; Automaton for floating-point instructions.
+(define_automaton "gs464_a_falu")
+
+;; Automaton for memory operations.
+(define_automaton "gs464_a_mem")
+
+;; Describe the resources.
+
+(define_cpu_unit "gs464_alu1" "gs464_a_alu")
+(define_cpu_unit "gs464_alu2" "gs464_a_alu")
+(define_cpu_unit "gs464_mem" "gs464_a_mem")
+(define_cpu_unit "gs464_falu1" "gs464_a_falu")
+(define_cpu_unit "gs464_falu2" "gs464_a_falu")
+
+;; Describe instruction reservations.
+
+(define_insn_reservation "gs464_arith" 1
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "arith,clz,const,logical,
+			move,nop,shift,signext,slt"))
+  "gs464_alu1 | gs464_alu2")
+
+(define_insn_reservation "gs464_branch" 1
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "branch,jump,call,condmove,trap"))
+  "gs464_alu1")
+
+(define_insn_reservation "gs464_mfhilo" 1
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "mfhi,mflo,mthi,mtlo"))
+  "gs464_alu2")
+
+;; Operation imul3nc is fully pipelined.
+(define_insn_reservation "gs464_imul3nc" 5
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "imul3nc"))
+  "gs464_alu2")
+
+(define_insn_reservation "gs464_imul" 7
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "imul,imadd"))
+  "gs464_alu2 * 7")
+
+(define_insn_reservation "gs464_idiv_si" 12
+  (and (eq_attr "cpu" "gs464")
+       (and (eq_attr "type" "idiv")
+	    (eq_attr "mode" "SI")))
+  "gs464_alu2 * 12")
+
+(define_insn_reservation "gs464_idiv_di" 25
+  (and (eq_attr "cpu" "gs464")
+       (and (eq_attr "type" "idiv")
+	    (eq_attr "mode" "DI")))
+  "gs464_alu2 * 25")
+
+(define_insn_reservation "gs464_load" 3
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "load"))
+  "gs464_mem")
+
+(define_insn_reservation "gs464_fpload" 4
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "load,mfc,mtc"))
+  "gs464_mem")
+
+(define_insn_reservation "gs464_prefetch" 0
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "prefetch,prefetchx"))
+  "gs464_mem")
+
+(define_insn_reservation "gs464_store" 0
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "store,fpstore,fpidxstore"))
+  "gs464_mem")
+
+;; All the fp operations can be executed in FALU1.  Only fp add,
+;; sub, mul, madd can be executed in FALU2.  Try FALU2 firstly.
+(define_insn_reservation "gs464_fadd" 6
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "fadd,fmul,fmadd"))
+  "gs464_falu2 | gs464_falu1")
+
+(define_insn_reservation "gs464_fcmp" 2
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "fabs,fcmp,fmove,fneg"))
+  "gs464_falu1")
+
+(define_insn_reservation "gs464_fcvt" 4
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "fcvt"))
+  "gs464_falu1")
+
+(define_insn_reservation "gs464_fdiv_sf" 12
+  (and (eq_attr "cpu" "gs464")
+       (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
+	    (eq_attr "mode" "SF")))
+  "gs464_falu1 * 12")
+
+(define_insn_reservation "gs464_fdiv_df" 19
+  (and (eq_attr "cpu" "gs464")
+       (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
+	    (eq_attr "mode" "DF")))
+  "gs464_falu1 * 19")
+
+;; Force single-dispatch for unknown or multi.
+(define_insn_reservation "gs464_unknown" 1
+  (and (eq_attr "cpu" "gs464")
+       (eq_attr "type" "unknown,multi,atomic,syncloop"))
+  "gs464_alu1 + gs464_alu2 + gs464_falu1 + gs464_falu2 + gs464_mem")
+
+;; End of DFA-based pipeline description for gs464
diff --git a/gcc/config/mips/loongson3a.md b/gcc/config/mips/loongson3a.md
deleted file mode 100644
index 2ebde6824cd..00000000000
--- a/gcc/config/mips/loongson3a.md
+++ /dev/null
@@ -1,137 +0,0 @@
-;; Pipeline model for Loongson-3A cores.
-
-;; Copyright (C) 2011-2018 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/>.
-
-;; Uncomment the following line to output automata for debugging.
-;; (automata_option "v")
-
-;; Automaton for integer instructions.
-(define_automaton "ls3a_a_alu")
-
-;; Automaton for floating-point instructions.
-(define_automaton "ls3a_a_falu")
-
-;; Automaton for memory operations.
-(define_automaton "ls3a_a_mem")
-
-;; Describe the resources.
-
-(define_cpu_unit "ls3a_alu1" "ls3a_a_alu")
-(define_cpu_unit "ls3a_alu2" "ls3a_a_alu")
-(define_cpu_unit "ls3a_mem" "ls3a_a_mem")
-(define_cpu_unit "ls3a_falu1" "ls3a_a_falu")
-(define_cpu_unit "ls3a_falu2" "ls3a_a_falu")
-
-;; Describe instruction reservations.
-
-(define_insn_reservation "ls3a_arith" 1
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "arith,clz,const,logical,
-                        move,nop,shift,signext,slt"))
-  "ls3a_alu1 | ls3a_alu2")
-
-(define_insn_reservation "ls3a_branch" 1
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "branch,jump,call,condmove,trap"))
-  "ls3a_alu1")
-
-(define_insn_reservation "ls3a_mfhilo" 1
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "mfhi,mflo,mthi,mtlo"))
-  "ls3a_alu2")
-
-;; Operation imul3nc is fully pipelined.
-(define_insn_reservation "ls3a_imul3nc" 5
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "imul3nc"))
-  "ls3a_alu2")
- 
-(define_insn_reservation "ls3a_imul" 7
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "imul,imadd"))
-  "ls3a_alu2 * 7")
- 
-(define_insn_reservation "ls3a_idiv_si" 12
-  (and (eq_attr "cpu" "loongson_3a")
-       (and (eq_attr "type" "idiv")
-            (eq_attr "mode" "SI")))
-  "ls3a_alu2 * 12")
-
-(define_insn_reservation "ls3a_idiv_di" 25
-  (and (eq_attr "cpu" "loongson_3a")
-       (and (eq_attr "type" "idiv")
-            (eq_attr "mode" "DI")))
-  "ls3a_alu2 * 25")
-
-(define_insn_reservation "ls3a_load" 3
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "load"))
-  "ls3a_mem")
- 
-(define_insn_reservation "ls3a_fpload" 4
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "load,mfc,mtc"))
-  "ls3a_mem")
-
-(define_insn_reservation "ls3a_prefetch" 0
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "prefetch,prefetchx"))
-  "ls3a_mem")
- 
-(define_insn_reservation "ls3a_store" 0
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "store,fpstore,fpidxstore"))
-  "ls3a_mem")
-
-;; All the fp operations can be executed in FALU1.  Only fp add,
-;; sub, mul, madd can be executed in FALU2.  Try FALU2 firstly.
-(define_insn_reservation "ls3a_fadd" 6
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "fadd,fmul,fmadd"))
-  "ls3a_falu2 | ls3a_falu1")
-
-(define_insn_reservation "ls3a_fcmp" 2
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "fabs,fcmp,fmove,fneg"))
-  "ls3a_falu1")
-
-(define_insn_reservation "ls3a_fcvt" 4
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "fcvt"))
-  "ls3a_falu1")
-
-(define_insn_reservation "ls3a_fdiv_sf" 12
-  (and (eq_attr "cpu" "loongson_3a")
-       (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
-            (eq_attr "mode" "SF")))
-  "ls3a_falu1 * 12")
- 
-(define_insn_reservation "ls3a_fdiv_df" 19
-  (and (eq_attr "cpu" "loongson_3a")
-       (and (eq_attr "type" "fdiv,frdiv,fsqrt,frsqrt")
-            (eq_attr "mode" "DF")))
-  "ls3a_falu1 * 19")
-
-;; Force single-dispatch for unknown or multi.
-(define_insn_reservation "ls3a_unknown" 1
-  (and (eq_attr "cpu" "loongson_3a")
-       (eq_attr "type" "unknown,multi,atomic,syncloop"))
-  "ls3a_alu1 + ls3a_alu2 + ls3a_falu1 + ls3a_falu2 + ls3a_mem")
-
-;; End of DFA-based pipeline description for loongson_3a
diff --git a/gcc/config/mips/mips-cpus.def b/gcc/config/mips/mips-cpus.def
index 6a545634417..eabe045cf39 100644
--- a/gcc/config/mips/mips-cpus.def
+++ b/gcc/config/mips/mips-cpus.def
@@ -162,7 +162,8 @@ MIPS_CPU ("sr71000", PROCESSOR_SR71000, 64, PTF_AVOID_BRANCHLIKELY_SPEED)
 MIPS_CPU ("xlr", PROCESSOR_XLR, 64, PTF_AVOID_BRANCHLIKELY_SPEED)
 
 /* MIPS64 Release 2 processors.  */
-MIPS_CPU ("loongson3a", PROCESSOR_LOONGSON_3A, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
+MIPS_CPU ("loongson3a", PROCESSOR_GS464, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
+MIPS_CPU ("gs464", PROCESSOR_GS464, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
 MIPS_CPU ("octeon", PROCESSOR_OCTEON, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
 MIPS_CPU ("octeon+", PROCESSOR_OCTEON, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
 MIPS_CPU ("octeon2", PROCESSOR_OCTEON2, 65, PTF_AVOID_BRANCHLIKELY_SPEED)
diff --git a/gcc/config/mips/mips-tables.opt b/gcc/config/mips/mips-tables.opt
index 11be4639fc3..3114fce7c70 100644
--- a/gcc/config/mips/mips-tables.opt
+++ b/gcc/config/mips/mips-tables.opt
@@ -679,26 +679,29 @@ EnumValue
 Enum(mips_arch_opt_value) String(loongson3a) Value(96) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(octeon) Value(97) Canonical
+Enum(mips_arch_opt_value) String(gs464) Value(97) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(octeon+) Value(98) Canonical
+Enum(mips_arch_opt_value) String(octeon) Value(98) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(octeon2) Value(99) Canonical
+Enum(mips_arch_opt_value) String(octeon+) Value(99) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(octeon3) Value(100) Canonical
+Enum(mips_arch_opt_value) String(octeon2) Value(100) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(xlp) Value(101) Canonical
+Enum(mips_arch_opt_value) String(octeon3) Value(101) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(i6400) Value(102) Canonical
+Enum(mips_arch_opt_value) String(xlp) Value(102) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(i6500) Value(103) Canonical
+Enum(mips_arch_opt_value) String(i6400) Value(103) Canonical
 
 EnumValue
-Enum(mips_arch_opt_value) String(p6600) Value(104) Canonical
+Enum(mips_arch_opt_value) String(i6500) Value(104) Canonical
+
+EnumValue
+Enum(mips_arch_opt_value) String(p6600) Value(105) Canonical
 
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index 1c2075044d0..e6dd3795694 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -836,7 +836,7 @@ static const struct mips_rtx_cost_data
   { /* Loongson-2F */
     DEFAULT_COSTS
   },
-  { /* Loongson-3A */
+  { /* Loongson gs464.  */
     DEFAULT_COSTS
   },
   { /* M4k */
@@ -14614,7 +14614,7 @@ mips_issue_rate (void)
 
     case PROCESSOR_LOONGSON_2E:
     case PROCESSOR_LOONGSON_2F:
-    case PROCESSOR_LOONGSON_3A:
+    case PROCESSOR_GS464:
     case PROCESSOR_P5600:
     case PROCESSOR_P6600:
       return 4;
@@ -14746,7 +14746,7 @@ mips_multipass_dfa_lookahead (void)
   if (TUNE_SB1)
     return 4;
 
-  if (TUNE_LOONGSON_2EF || TUNE_LOONGSON_3A)
+  if (TUNE_LOONGSON_2EF || TUNE_GS464)
     return 4;
 
   if (TUNE_OCTEON)
diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
index beeb4bcf20d..9666107077e 100644
--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
@@ -266,7 +266,7 @@ struct mips_cpu_info {
 #define TARGET_LOONGSON_2E          (mips_arch == PROCESSOR_LOONGSON_2E)
 #define TARGET_LOONGSON_2F          (mips_arch == PROCESSOR_LOONGSON_2F)
 #define TARGET_LOONGSON_2EF         (TARGET_LOONGSON_2E || TARGET_LOONGSON_2F)
-#define TARGET_LOONGSON_3A          (mips_arch == PROCESSOR_LOONGSON_3A)
+#define TARGET_GS464		    (mips_arch == PROCESSOR_GS464)
 #define TARGET_MIPS3900             (mips_arch == PROCESSOR_R3900)
 #define TARGET_MIPS4000             (mips_arch == PROCESSOR_R4000)
 #define TARGET_MIPS4120             (mips_arch == PROCESSOR_R4120)
@@ -298,7 +298,7 @@ struct mips_cpu_info {
 				     || mips_tune == PROCESSOR_74KF3_2)
 #define TUNE_LOONGSON_2EF           (mips_tune == PROCESSOR_LOONGSON_2E	\
 				     || mips_tune == PROCESSOR_LOONGSON_2F)
-#define TUNE_LOONGSON_3A            (mips_tune == PROCESSOR_LOONGSON_3A)
+#define TUNE_GS464		    (mips_tune == PROCESSOR_GS464)
 #define TUNE_MIPS3000               (mips_tune == PROCESSOR_R3000)
 #define TUNE_MIPS3900               (mips_tune == PROCESSOR_R3900)
 #define TUNE_MIPS4000               (mips_tune == PROCESSOR_R4000)
@@ -792,7 +792,8 @@ struct mips_cpu_info {
      %{march=mips32r6: -mips32r6} \
      %{march=mips64|march=5k*|march=20k*|march=sb1*|march=sr71000 \
        |march=xlr: -mips64} \
-     %{march=mips64r2|march=loongson3a|march=octeon|march=xlp: -mips64r2} \
+     %{march=mips64r2|march=loongson3a|march=gs464|march=octeon	\
+       |march=xlp: -mips64r2} \
      %{march=mips64r3: -mips64r3} \
      %{march=mips64r5: -mips64r5} \
      %{march=mips64r6|march=i6400|march=i6500|march=p6600: -mips64r6}}"
@@ -909,7 +910,7 @@ struct mips_cpu_info {
 
 #define MIPS_ASE_LOONGSON_EXT_SPEC						\
   "%{!mno-loongson-ext:								\
-     %{march=loongson3a: -mloongson-ext}}"
+     %{march=loongson3a|march=gs464: -mloongson-ext}}"
 
 #define DRIVER_SELF_SPECS \
   MIPS_ISA_LEVEL_SPEC,	  \
@@ -962,7 +963,7 @@ struct mips_cpu_info {
 
 /* ISA has 32 single-precision registers.  */
 #define ISA_HAS_ODD_SPREG	((mips_isa_rev >= 1			\
-				  && !TARGET_LOONGSON_3A)		\
+				  && !TARGET_GS464)			\
 				 || TARGET_FLOAT64			\
 				 || TARGET_MIPS5900)
 
@@ -1005,7 +1006,7 @@ struct mips_cpu_info {
    because the former are faster and can also have the effect of reducing
    code size.  */
 #define ISA_AVOID_DIV_HILO	((TARGET_LOONGSON_2EF			\
-				  || TARGET_LOONGSON_3A)		\
+				  || TARGET_GS464)			\
 				 && !TARGET_MIPS16)
 
 /* ISA supports instructions DDIV and DDIVU. */
@@ -1098,14 +1099,14 @@ struct mips_cpu_info {
    'd = [+-] (a * b [+-] c)'.  */
 #define ISA_HAS_FUSED_MADD4	(mips_madd4				\
 				 && (TARGET_MIPS8000			\
-				     || TARGET_LOONGSON_3A))
+				     || TARGET_GS464))
 
 /* ISA has 4 operand unfused madd instructions of the form
    'd = [+-] (a * b [+-] c)'.  */
 #define ISA_HAS_UNFUSED_MADD4	(mips_madd4				\
 				 && ISA_HAS_FP4				\
 				 && !TARGET_MIPS8000			\
-				 && !TARGET_LOONGSON_3A)
+				 && !TARGET_GS464)
 
 /* ISA has 3 operand r6 fused madd instructions of the form
    'c = c [+-] (a * b)'.  */
diff --git a/gcc/config/mips/mips.md b/gcc/config/mips/mips.md
index 8358218d8ac..d347a253ff1 100644
--- a/gcc/config/mips/mips.md
+++ b/gcc/config/mips/mips.md
@@ -37,7 +37,7 @@
   74kf3_2
   loongson_2e
   loongson_2f
-  loongson_3a
+  gs464
   m4k
   octeon
   octeon2
@@ -1173,7 +1173,7 @@
 (include "9000.md")
 (include "10000.md")
 (include "loongson2ef.md")
-(include "loongson3a.md")
+(include "gs464.md")
 (include "octeon.md")
 (include "sb1.md")
 (include "sr71k.md")
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index d36a15a34ef..9780cb8f255 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -20799,7 +20799,7 @@ The processor names are:
 @samp{1004kc}, @samp{1004kf2_1}, @samp{1004kf1_1},
 @samp{i6400}, @samp{i6500},
 @samp{interaptiv},
-@samp{loongson2e}, @samp{loongson2f}, @samp{loongson3a},
+@samp{loongson2e}, @samp{loongson2f}, @samp{loongson3a}, @samp{gs464},
 @samp{m4k},
 @samp{m14k}, @samp{m14kc}, @samp{m14ke}, @samp{m14kec},
 @samp{m5100}, @samp{m5101},
-- 
2.18.0


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