[PATCH ARM iWMMXt 5/5] pipeline description

[Matt Turner <mattst88 at gmail dot com>]

From: Xinyu Qi <xyqi@marvell.com>

	gcc/
	* config/arm/t-arm (MD_INCLUDES): Add marvell-f-iwmmxt.md.
	* config/arm/marvell-f-iwmmxt.md: New file.
	* config/arm/arm.md (marvell-f-iwmmxt.md): Include.
---
 gcc/config/arm/arm.md              |    1 +
 gcc/config/arm/marvell-f-iwmmxt.md |  179 ++++++++++++++++++++++++++++++++++++
 gcc/config/arm/t-arm               |    1 +
 3 files changed, 181 insertions(+), 0 deletions(-)
 create mode 100644 gcc/config/arm/marvell-f-iwmmxt.md

diff --git a/gcc/config/arm/arm.md b/gcc/config/arm/arm.md
index b0333c2..baa3b7c 100644
--- a/gcc/config/arm/arm.md
+++ b/gcc/config/arm/arm.md
@@ -546,6 +546,7 @@
 	  (const_string "yes")
 	  (const_string "no"))))
 
+(include "marvell-f-iwmmxt.md")
 (include "arm-generic.md")
 (include "arm926ejs.md")
 (include "arm1020e.md")
diff --git a/gcc/config/arm/marvell-f-iwmmxt.md b/gcc/config/arm/marvell-f-iwmmxt.md
new file mode 100644
index 0000000..fe8e455
--- /dev/null
+++ b/gcc/config/arm/marvell-f-iwmmxt.md
@@ -0,0 +1,179 @@
+;; Marvell WMMX2 pipeline description
+;; Copyright (C) 2011 Free Software Foundation, Inc.
+;; Written by Marvell, 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 "marvell_f_iwmmxt")
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Pipelines
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; This is a 7-stage pipelines:
+;;
+;;    MD | MI | ME1 | ME2 | ME3 | ME4 | MW
+;;
+;; There are various bypasses modelled to a greater or lesser extent.
+;;
+;; Latencies in this file correspond to the number of cycles after
+;; the issue stage that it takes for the result of the instruction to
+;; be computed, or for its side-effects to occur.
+
+(define_cpu_unit "mf_iwmmxt_MD" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_MI" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_ME1" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_ME2" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_ME3" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_ME4" "marvell_f_iwmmxt")
+(define_cpu_unit "mf_iwmmxt_MW" "marvell_f_iwmmxt")
+
+(define_reservation "mf_iwmmxt_ME"
+      "mf_iwmmxt_ME1,mf_iwmmxt_ME2,mf_iwmmxt_ME3,mf_iwmmxt_ME4"
+)
+
+(define_reservation "mf_iwmmxt_pipeline"
+      "mf_iwmmxt_MD, mf_iwmmxt_MI, mf_iwmmxt_ME, mf_iwmmxt_MW"
+)
+
+;; An attribute to indicate whether our reservations are applicable.
+(define_attr "marvell_f_iwmmxt" "yes,no"
+  (const (if_then_else (symbol_ref "arm_arch_iwmmxt")
+                       (const_string "yes") (const_string "no"))))
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; instruction classes
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+;; An attribute appended to instructions for classification
+
+(define_attr "wmmxt_shift" "yes,no"
+  (if_then_else (eq_attr "wtype" "wror, wsll, wsra, wsrl")
+		(const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_pack" "yes,no"
+  (if_then_else (eq_attr "wtype" "waligni, walignr, wmerge, wpack, wshufh, wunpckeh, wunpckih, wunpckel, wunpckil")
+		(const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_mult_c1" "yes,no"
+  (if_then_else (eq_attr "wtype" "wmac, wmadd, wmiaxy, wmiawxy, wmulw, wqmiaxy, wqmulwm")
+		(const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_mult_c2" "yes,no"
+  (if_then_else (eq_attr "wtype" "wmul, wqmulm")
+		(const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_alu_c1" "yes,no"
+  (if_then_else (eq_attr "wtype" "wabs, wabsdiff, wand, wandn, wmov, wor, wxor")
+	        (const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_alu_c2" "yes,no"
+  (if_then_else (eq_attr "wtype" "wacc, wadd, waddsubhx, wavg2, wavg4, wcmpeq, wcmpgt, wmax, wmin, wsub, waddbhus, wsubaddhx")
+		(const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_alu_c3" "yes,no"
+  (if_then_else (eq_attr "wtype" "wsad")
+	        (const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_transfer_c1" "yes,no"
+  (if_then_else (eq_attr "wtype" "tbcst, tinsr, tmcr, tmcrr")
+                (const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_transfer_c2" "yes,no"
+  (if_then_else (eq_attr "wtype" "textrm, tmovmsk, tmrc, tmrrc")
+	        (const_string "yes") (const_string "no"))
+)
+
+(define_attr "wmmxt_transfer_c3" "yes,no"
+  (if_then_else (eq_attr "wtype" "tmia, tmiaph, tmiaxy")
+	        (const_string "yes") (const_string "no"))
+)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Main description
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(define_insn_reservation "marvell_f_iwmmxt_alu_c1" 1
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_alu_c1" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_pack" 1
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_pack" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_shift" 1
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_shift" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_transfer_c1" 1
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_transfer_c1" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_transfer_c2" 5
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_transfer_c2" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_alu_c2" 2
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_alu_c2" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_alu_c3" 3
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_alu_c3" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_transfer_c3" 4
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_transfer_c3" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_mult_c1" 4
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_mult_c1" "yes"))
+  "mf_iwmmxt_pipeline")
+
+;There is a forwarding path from ME3 stage
+(define_insn_reservation "marvell_f_iwmmxt_mult_c2" 3
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wmmxt_mult_c2" "yes"))
+  "mf_iwmmxt_pipeline")
+
+(define_insn_reservation "marvell_f_iwmmxt_wstr" 0
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wtype" "wstr"))
+  "mf_iwmmxt_pipeline")
+
+;There is a forwarding path from MW stage
+(define_insn_reservation "marvell_f_iwmmxt_wldr" 5
+  (and (eq_attr "marvell_f_iwmmxt" "yes")
+       (eq_attr "wtype" "wldr"))
+  "mf_iwmmxt_pipeline")
diff --git a/gcc/config/arm/t-arm b/gcc/config/arm/t-arm
index 83c18f7..30687e1 100644
--- a/gcc/config/arm/t-arm
+++ b/gcc/config/arm/t-arm
@@ -51,6 +51,7 @@ MD_INCLUDES=	$(srcdir)/config/arm/arm1020e.md \
 		$(srcdir)/config/arm/iwmmxt.md \
 		$(srcdir)/config/arm/iwmmxt2.md \
 		$(srcdir)/config/arm/ldmstm.md \
+		$(srcdir)/config/arm/marvell-f-iwmmxt.md \
 		$(srcdir)/config/arm/neon.md \
 		$(srcdir)/config/arm/predicates.md \
 		$(srcdir)/config/arm/sync.md \
-- 
1.7.3.4