Initial check-in of gcc 4.7.2.

Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365

1 files changed, 161 insertions, 0 deletions

diff --git a/gcc-4.7/gcc/config/arm/cortex-r4f.md b/gcc-4.7/gcc/config/arm/cortex-r4f.md
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+;; ARM Cortex-R4F VFP pipeline description
+;; Copyright (C) 2007, 2008 Free Software Foundation, Inc.
+;; Written by CodeSourcery.
+;;
+;; 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/>.
+
+;; With the exception of simple VMOV <freg>, <freg> instructions and
+;; the accululate operand of a multiply-accumulate instruction, all
+;; registers are early registers.  Thus base latencies are 1 more than
+;; those listed in the TRM.
+
+;; We use the A, B abd C units from the integer core, plus two additional
+;; units to enforce VFP dual issue constraints.
+
+;;		  A B C	    V1	VMLA
+;; fcpy		  1 2
+;; farith	  1 2	    1
+;; fmrc		  1 2
+;; fconst	  1 2 *	    *
+;; ffarith	  1 2 *	    *
+;; fmac		  1 2	    1	2
+;; fdiv		  1 2	    *
+;; f_loads	  *   *	    *
+;; f_stores	  *   *	    	*
+
+(define_cpu_unit "cortex_r4_v1" "cortex_r4")
+
+(define_cpu_unit "cortex_r4_vmla" "cortex_r4")
+
+(define_reservation "cortex_r4_issue_ab"
+		    "(cortex_r4_issue_a|cortex_r4_issue_b)")
+(define_reservation "cortex_r4_single_issue"
+		    "cortex_r4_issue_a+cortex_r4_issue_b")
+
+(define_insn_reservation "cortex_r4_fcpys" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fcpys"))
+ "cortex_r4_issue_ab")
+
+(define_insn_reservation "cortex_r4_ffariths" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "ffariths,fconsts,fcmps"))
+ "cortex_r4_issue_ab+cortex_r4_issue_c+cortex_r4_v1")
+
+(define_insn_reservation "cortex_r4_fariths" 3
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fadds,fmuls"))
+ "(cortex_r4_issue_a+cortex_r4_v1)|cortex_r4_issue_b")
+
+(define_insn_reservation "cortex_r4_fmacs" 6
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fmacs"))
+ "(cortex_r4_issue_a+cortex_r4_v1)|(cortex_r4_issue_b+cortex_r4_vmla)")
+
+(define_insn_reservation "cortex_r4_fdivs" 17
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fdivs"))
+ "cortex_r4_issue_ab+cortex_r4_v1,cortex_r4_issue_a+cortex_r4_v1")
+
+(define_insn_reservation "cortex_r4_floads" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_loads"))
+ "cortex_r4_issue_a+cortex_r4_issue_c+cortex_r4_v1")
+
+(define_insn_reservation "cortex_r4_fstores" 1
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_stores"))
+ "cortex_r4_issue_a+cortex_r4_issue_c+cortex_r4_vmla")
+
+(define_insn_reservation "cortex_r4_mcr" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "r_2_f"))
+ "cortex_r4_issue_ab")
+
+(define_insn_reservation "cortex_r4_mrc" 3
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_2_r"))
+ "cortex_r4_issue_ab")
+
+;; Bypasses for normal (not early) regs.
+(define_bypass 1 "cortex_r4_ffariths,cortex_r4_fcpys,cortex_r4_mcr"
+		 "cortex_r4_fcpys")
+(define_bypass 2 "cortex_r4_fariths"
+		 "cortex_r4_fcpys")
+(define_bypass 5 "cortex_r4_fmacs"
+		 "cortex_r4_fcpys")
+(define_bypass 16 "cortex_r4_fdivs"
+		  "cortex_r4_fcpys")
+
+(define_bypass 1 "cortex_r4_ffariths,cortex_r4_fcpys,cortex_r4_mcr"
+		 "cortex_r4_fmacs"
+		 "arm_no_early_mul_dep")
+(define_bypass 2 "cortex_r4_fariths"
+		 "cortex_r4_fmacs"
+		 "arm_no_early_mul_dep")
+;; mac->mac has an extra forwarding path.
+(define_bypass 3 "cortex_r4_fmacs"
+		 "cortex_r4_fmacs"
+		 "arm_no_early_mul_dep")
+(define_bypass 16 "cortex_r4_fdivs"
+		  "cortex_r4_fmacs"
+		  "arm_no_early_mul_dep")
+
+;; Double precision operations.  These can not dual issue.
+
+(define_insn_reservation "cortex_r4_fmacd" 20
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fmacd"))
+ "cortex_r4_single_issue*13")
+
+(define_insn_reservation "cortex_r4_farith" 10
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "faddd,fmuld"))
+ "cortex_r4_single_issue*3")
+
+;; FIXME: The short cycle count suggests these instructions complete
+;; out of order.  Chances are this is not a pipelined operation.
+(define_insn_reservation "cortex_r4_fdivd" 97
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fdivd"))
+ "cortex_r4_single_issue*3")
+
+(define_insn_reservation "cortex_r4_ffarithd" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "ffarithd,fconstd"))
+ "cortex_r4_single_issue")
+
+(define_insn_reservation "cortex_r4_fcmpd" 2
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "fcmpd"))
+ "cortex_r4_single_issue*2")
+
+(define_insn_reservation "cortex_r4_f_cvt" 8
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_cvt"))
+ "cortex_r4_single_issue*3")
+
+(define_insn_reservation "cortex_r4_f_memd" 8
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_loadd,f_stored"))
+ "cortex_r4_single_issue")
+
+(define_insn_reservation "cortex_r4_f_flag" 1
+ (and (eq_attr "tune_cortexr4" "yes")
+      (eq_attr "type" "f_stores"))
+ "cortex_r4_single_issue")
+