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, 134 insertions, 0 deletions

diff --git a/gcc/config/rs6000/a2.md b/gcc/config/rs6000/a2.md
new file mode 100644
index 000000000..851d8949f
--- /dev/null
+++ b/gcc/config/rs6000/a2.md
@@ -0,0 +1,134 @@
+;; Scheduling description for PowerPC A2 processors.
+;; Copyright (C) 2009 Free Software Foundation, Inc.
+;; Contributed by Ben Elliston (bje@au.ibm.com)
+
+;; 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 "ppca2")
+
+;; CPU units
+
+;; The multiplier pipeline.
+(define_cpu_unit "mult" "ppca2")
+
+;; The auxillary processor unit (FP/vector unit).
+(define_cpu_unit "axu" "ppca2")
+
+;; D.4.6
+;; Some peculiarities for certain SPRs
+
+(define_insn_reservation "ppca2-mfcr" 1
+  (and (eq_attr "type" "mfcr")
+       (eq_attr "cpu" "ppca2"))
+   "nothing")
+
+(define_insn_reservation "ppca2-mfjmpr" 5
+  (and (eq_attr "type" "mfjmpr")
+       (eq_attr "cpu" "ppca2"))
+  "nothing")
+
+(define_insn_reservation "ppca2-mtjmpr" 5
+  (and (eq_attr "type" "mtjmpr")
+       (eq_attr "cpu" "ppca2"))
+  "nothing")
+
+;; D.4.8
+(define_insn_reservation "ppca2-imul" 1
+  (and (eq_attr "type" "imul,imul2,imul3,imul_compare")
+       (eq_attr "cpu" "ppca2"))
+  "nothing")
+
+;; FIXME: latency and multiplier reservation for 64-bit multiply?
+(define_insn_reservation "ppca2-lmul" 6
+  (and (eq_attr "type" "lmul,lmul_compare")
+       (eq_attr "cpu" "ppca2"))
+  "mult*3")
+
+;; D.4.9
+(define_insn_reservation "ppca2-idiv" 32
+  (and (eq_attr "type" "idiv")
+       (eq_attr "cpu" "ppca2"))
+  "mult*32")
+
+(define_insn_reservation "ppca2-ldiv" 65
+  (and (eq_attr "type" "ldiv")
+       (eq_attr "cpu" "ppca2"))
+  "mult*65")
+
+;; D.4.13
+(define_insn_reservation "ppca2-load" 5
+  (and (eq_attr "type" "load,load_ext,load_ext_u,load_ext_ux,load_ux,load_u")
+       (eq_attr "cpu" "ppca2"))
+  "nothing")
+
+;; D.8.1
+(define_insn_reservation "ppca2-fp" 6
+  (and (eq_attr "type" "fp")     	   ;; Ignore fpsimple insn types (SPE only).
+       (eq_attr "cpu" "ppca2"))
+  "axu")
+
+;; D.8.4
+(define_insn_reservation "ppca2-fp-load" 6
+  (and (eq_attr "type" "fpload,fpload_u,fpload_ux")
+       (eq_attr "cpu" "ppca2"))
+  "axu")
+
+;; D.8.5
+(define_insn_reservation "ppca2-fp-store" 2
+  (and (eq_attr "type" "fpstore,fpstore_u,fpstore_ux")
+       (eq_attr "cpu" "ppca2"))
+  "axu")
+
+;; D.8.6
+(define_insn_reservation "ppca2-fpcompare" 5
+  (and (eq_attr "type" "fpcompare")
+       (eq_attr "cpu" "ppca2"))
+ "axu")
+
+;; D.8.7
+;;
+;; Instructions from the same thread succeeding the floating-point
+;; divide cannot be executed until the floating-point divide has
+;; completed.  Since there is nothing else we can do, this thread will
+;; just have to stall.
+
+(define_insn_reservation "ppca2-ddiv" 72
+  (and (eq_attr "type" "ddiv")
+       (eq_attr "cpu" "ppca2"))
+   "axu")
+
+(define_insn_reservation "ppca2-sdiv" 59
+  (and (eq_attr "type" "sdiv")
+       (eq_attr "cpu" "ppca2"))
+   "axu")
+
+;; D.8.8
+;; 
+;; Instructions from the same thread succeeding the floating-point
+;; divide cannot be executed until the floating-point divide has
+;; completed.  Since there is nothing else we can do, this thread will
+;; just have to stall.
+
+(define_insn_reservation "ppca2-dsqrt" 69
+  (and (eq_attr "type" "dsqrt")
+       (eq_attr "cpu" "ppca2"))
+  "axu")
+
+(define_insn_reservation "ppca2-ssqrt" 65
+  (and (eq_attr "type" "ssqrt")
+       (eq_attr "cpu" "ppca2"))
+  "axu")