obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 184 insertions, 0 deletions

diff --git a/gcc/config/rs6000/7xx.md b/gcc/config/rs6000/7xx.md
new file mode 100644
index 000000000..edbde75c2
--- /dev/null
+++ b/gcc/config/rs6000/7xx.md
@@ -0,0 +1,184 @@
+;; Scheduling description for Motorola PowerPC 750 and PowerPC 7400 processors.
+;;   Copyright (C) 2003, 2004, 2007, 2009 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 "ppc7xx,ppc7xxfp")
+(define_cpu_unit "iu1_7xx,iu2_7xx" "ppc7xx")
+(define_cpu_unit "fpu_7xx" "ppc7xxfp")
+(define_cpu_unit "lsu_7xx,bpu_7xx,sru_7xx" "ppc7xx")
+(define_cpu_unit "du1_7xx,du2_7xx" "ppc7xx")
+(define_cpu_unit "veccmplx_7xx,vecperm_7xx,vdu_7xx" "ppc7xx")
+
+;; PPC740/PPC750/PPC7400  32-bit 2xIU, LSU, SRU, FPU, BPU
+;; IU1 can perform all integer operations
+;; IU2 can perform all integer operations except imul and idiv
+;; LSU 2 stage pipelined
+;; FPU 3 stage pipelined
+;; Max issue 3 insns/clock cycle (includes 1 branch)
+;; In-order execution
+
+
+;; The PPC750 user's manual recommends that to reduce branch mispredictions,
+;; the insn that sets CR bits should be separated from the branch insn
+;; that evaluates them.  There is no advantage have more than 10 cycles
+;; of separation.
+;; This could be artificially achieved by exaggerating the latency of
+;; compare insns but at the expense of a poorer schedule.
+
+;; Branches go straight to the BPU.  All other insns are handled
+;; by a dispatch unit which can issue a max of 2 insns per cycle.
+(define_reservation "ppc750_du" "du1_7xx|du2_7xx")
+(define_reservation "ppc7400_vec_du" "vdu_7xx")
+
+(define_insn_reservation "ppc750-load" 2
+  (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,\
+		        load_ux,load_u,fpload,fpload_ux,fpload_u,\
+			vecload,load_l")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,lsu_7xx")
+
+(define_insn_reservation "ppc750-store" 2
+  (and (eq_attr "type" "store,store_ux,store_u,\
+		        fpstore,fpstore_ux,fpstore_u,vecstore")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,lsu_7xx")
+
+(define_insn_reservation "ppc750-storec" 8
+  (and (eq_attr "type" "store_c")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,lsu_7xx")
+
+(define_insn_reservation "ppc750-integer" 1
+  (and (eq_attr "type" "integer,insert_word,insert_dword,shift,\
+                        trap,var_shift_rotate,cntlz,exts,isel")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx|iu2_7xx")
+
+(define_insn_reservation "ppc750-two" 1
+  (and (eq_attr "type" "two")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx")
+
+(define_insn_reservation "ppc750-three" 1
+  (and (eq_attr "type" "three")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx,iu1_7xx|iu2_7xx")
+
+(define_insn_reservation "ppc750-imul" 4
+  (and (eq_attr "type" "imul,imul_compare")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx*4")
+
+(define_insn_reservation "ppc750-imul2" 3
+  (and (eq_attr "type" "imul2")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx*2")
+
+(define_insn_reservation "ppc750-imul3" 2
+  (and (eq_attr "type" "imul3")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx")
+
+(define_insn_reservation "ppc750-idiv" 19
+  (and (eq_attr "type" "idiv")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx*19")
+
+(define_insn_reservation "ppc750-compare" 2
+  (and (eq_attr "type" "cmp,fast_compare,compare,delayed_compare,\
+                        var_delayed_compare")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,(iu1_7xx|iu2_7xx)")
+
+(define_insn_reservation "ppc750-fpcompare" 2
+  (and (eq_attr "type" "fpcompare")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,fpu_7xx")
+
+(define_insn_reservation "ppc750-fp" 3
+  (and (eq_attr "type" "fp")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,fpu_7xx")
+
+(define_insn_reservation "ppc750-dmul" 4
+  (and (eq_attr "type" "dmul")
+       (eq_attr "cpu" "ppc750"))
+  "ppc750_du,fpu_7xx*2")
+
+(define_insn_reservation "ppc7400-dmul" 3
+  (and (eq_attr "type" "dmul")
+       (eq_attr "cpu" "ppc7400"))
+  "ppc750_du,fpu_7xx")
+
+; Divides are not pipelined
+(define_insn_reservation "ppc750-sdiv" 17
+  (and (eq_attr "type" "sdiv")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,fpu_7xx*17")
+
+(define_insn_reservation "ppc750-ddiv" 31
+  (and (eq_attr "type" "ddiv")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,fpu_7xx*31")
+
+(define_insn_reservation "ppc750-mfcr" 2
+  (and (eq_attr "type" "mfcr,mtcr")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "ppc750_du,iu1_7xx")
+
+(define_insn_reservation "ppc750-crlogical" 3
+  (and (eq_attr "type" "cr_logical,delayed_cr")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "nothing,sru_7xx*2")
+
+(define_insn_reservation "ppc750-mtjmpr" 2
+  (and (eq_attr "type" "mtjmpr,isync,sync")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "nothing,sru_7xx*2")
+
+(define_insn_reservation "ppc750-mfjmpr" 3
+  (and (eq_attr "type" "mfjmpr")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "nothing,sru_7xx*2")
+
+(define_insn_reservation "ppc750-jmpreg" 1
+  (and (eq_attr "type" "jmpreg,branch,isync")
+       (eq_attr "cpu" "ppc750,ppc7400"))
+  "nothing,bpu_7xx")
+
+;; Altivec
+(define_insn_reservation "ppc7400-vecsimple" 1
+  (and (eq_attr "type" "vecsimple,veccmp")
+       (eq_attr "cpu" "ppc7400"))
+  "ppc750_du,ppc7400_vec_du,veccmplx_7xx")
+
+(define_insn_reservation "ppc7400-veccomplex" 4
+  (and (eq_attr "type" "veccomplex")
+       (eq_attr "cpu" "ppc7400"))
+  "ppc750_du,ppc7400_vec_du,veccmplx_7xx")
+
+(define_insn_reservation "ppc7400-vecfloat" 4
+  (and (eq_attr "type" "vecfloat")
+       (eq_attr "cpu" "ppc7400"))
+  "ppc750_du,ppc7400_vec_du,veccmplx_7xx")
+
+(define_insn_reservation "ppc7400-vecperm" 2
+  (and (eq_attr "type" "vecperm")
+       (eq_attr "cpu" "ppc7400"))
+  "ppc750_du,ppc7400_vec_du,vecperm_7xx")
+