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diff --git a/gcc-4.4.3/gcc/config/rs6000/40x.md b/gcc-4.4.3/gcc/config/rs6000/40x.md
new file mode 100644
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+;; Scheduling description for IBM PowerPC 403 and PowerPC 405  processors.
+;;   Copyright (C) 2003, 2004, 2007 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 "ppc40x,ppc40xiu")
+(define_cpu_unit "bpu_40x,fpu_405" "ppc40x")
+(define_cpu_unit "iu_40x" "ppc40xiu")
+
+;; PPC401 / PPC403 / PPC405 32-bit integer only  IU BPU
+;; Embedded PowerPC controller
+;; In-order execution
+;; Max issue two insns/cycle (includes one branch)
+(define_insn_reservation "ppc403-load" 2
+  (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,load_ux,load_u,\
+			load_l,store_c,sync")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-store" 2
+  (and (eq_attr "type" "store,store_ux,store_u")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-integer" 1
+  (and (eq_attr "type" "integer,insert_word,insert_dword,shift,trap,\
+                        var_shift_rotate,cntlz,exts")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-two" 1
+  (and (eq_attr "type" "two")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x,iu_40x")
+
+(define_insn_reservation "ppc403-three" 1
+  (and (eq_attr "type" "three")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x,iu_40x,iu_40x")
+
+(define_insn_reservation "ppc403-compare" 3
+  (and (eq_attr "type" "cmp,fast_compare,compare,delayed_compare,\
+                        var_delayed_compare")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x,nothing,bpu_40x")
+
+(define_insn_reservation "ppc403-imul" 4
+  (and (eq_attr "type" "imul,imul2,imul3,imul_compare")
+       (eq_attr "cpu" "ppc403"))
+  "iu_40x*4")
+
+(define_insn_reservation "ppc405-imul" 5
+  (and (eq_attr "type" "imul,imul_compare")
+       (eq_attr "cpu" "ppc405"))
+  "iu_40x*4")
+
+(define_insn_reservation "ppc405-imul2" 3
+  (and (eq_attr "type" "imul2")
+       (eq_attr "cpu" "ppc405"))
+  "iu_40x*2")
+
+(define_insn_reservation "ppc405-imul3" 2
+  (and (eq_attr "type" "imul3")
+       (eq_attr "cpu" "ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-idiv" 33
+  (and (eq_attr "type" "idiv")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x*33")
+
+(define_insn_reservation "ppc403-mfcr" 2
+  (and (eq_attr "type" "mfcr")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-mtcr" 3
+  (and (eq_attr "type" "mtcr")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-mtjmpr" 4
+  (and (eq_attr "type" "mtjmpr")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-mfjmpr" 2
+  (and (eq_attr "type" "mfjmpr")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "iu_40x")
+
+(define_insn_reservation "ppc403-jmpreg" 1
+  (and (eq_attr "type" "jmpreg,branch,isync")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "bpu_40x")
+
+(define_insn_reservation "ppc403-cr" 2
+  (and (eq_attr "type" "cr_logical,delayed_cr")
+       (eq_attr "cpu" "ppc403,ppc405"))
+  "bpu_40x")
+
+(define_insn_reservation "ppc405-float" 11
+  (and (eq_attr "type" "fpload,fpload_ux,fpload_u,fpstore,fpstore_ux,fpstore_u,\
+			fpcompare,fp,dmul,sdiv,ddiv")
+       (eq_attr "cpu" "ppc405"))
+  "fpu_405*10")