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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
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if you have obtained the source via the command 'git clone',
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1 files changed, 214 insertions, 0 deletions

diff --git a/gcc/config/mips/7000.md b/gcc/config/mips/7000.md
new file mode 100644
index 000000000..6c91d0472
--- /dev/null
+++ b/gcc/config/mips/7000.md
@@ -0,0 +1,214 @@
+;; DFA-based pipeline description for the RM7000.
+;;   Copyright (C) 2003, 2004, 2005, 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/>.
+
+;; .........................
+;;
+;; The RM7000 is a dual-issue processor that can bundle instructions as:
+;; {arith|load|store}{arith|imul|idiv|branch|float}
+;;
+;; Reference:
+;;   "RM7000 Family User Manual, PMC-2002296"
+;;
+;; .........................
+
+;; Use three automata to isolate long latency operations, reducing space.
+(define_automaton "rm7000_other, rm7000_fdiv, rm7000_idiv")
+
+;;
+;; Describe the resources.
+;;
+
+;; Global
+(define_cpu_unit "rm7_iss0,rm7_iss1" "rm7000_other")
+
+;; Integer execution unit (M-Pipe).
+(define_cpu_unit "ixum_addsub_agen" "rm7000_other")
+
+;; Integer execution unit (F-Pipe).
+(define_cpu_unit "ixuf_addsub" "rm7000_other")
+(define_cpu_unit "ixuf_branch" "rm7000_other")
+(define_cpu_unit "ixuf_mpydiv" "rm7000_other")
+(define_cpu_unit "ixuf_mpydiv_iter" "rm7000_idiv")
+;; Floating-point unit (F-Pipe).
+(define_cpu_unit "fxuf_add" "rm7000_other")
+(define_cpu_unit "fxuf_mpy" "rm7000_other")
+(define_cpu_unit "fxuf_mpy_iter" "rm7000_fdiv")
+(define_cpu_unit "fxuf_divsqrt" "rm7000_other")
+(define_cpu_unit "fxuf_divsqrt_iter" "rm7000_fdiv")
+
+(exclusion_set "ixuf_addsub"
+	       "ixuf_branch,ixuf_mpydiv,fxuf_add,fxuf_mpy,fxuf_divsqrt")
+(exclusion_set "ixuf_branch" "ixuf_mpydiv,fxuf_add,fxuf_mpy,fxuf_divsqrt")
+(exclusion_set "ixuf_mpydiv" "fxuf_add,fxuf_mpy,fxuf_divsqrt")
+(exclusion_set "fxuf_add" "fxuf_mpy,fxuf_divsqrt")
+(exclusion_set "fxuf_mpy" "fxuf_divsqrt")
+
+;; After branch any insn cannot be issued.
+(absence_set "rm7_iss0,rm7_iss1" "ixuf_branch")
+
+;;
+;; Define reservations for unit name mnemonics or combinations.
+;;
+
+(define_reservation "rm7_iss" "rm7_iss0|rm7_iss1")
+(define_reservation "rm7_single_dispatch" "rm7_iss0+rm7_iss1")
+
+(define_reservation "rm7_iaddsub" "rm7_iss+(ixum_addsub_agen|ixuf_addsub)")
+(define_reservation "rm7_imem" "rm7_iss+ixum_addsub_agen")
+(define_reservation "rm7_impydiv" "rm7_iss+ixuf_mpydiv")
+(define_reservation "rm7_impydiv_iter" "ixuf_mpydiv_iter")
+(define_reservation "rm7_branch" "rm7_iss+ixuf_branch")
+
+(define_reservation "rm7_fpadd"	"rm7_iss+fxuf_add")
+(define_reservation "rm7_fpmpy"	"rm7_iss+fxuf_mpy")
+(define_reservation "rm7_fpmpy_iter" "fxuf_mpy_iter")
+(define_reservation "rm7_fpdivsqr" "rm7_iss+fxuf_divsqrt")
+(define_reservation "rm7_fpdivsqr_iter" "fxuf_divsqrt_iter")
+
+;;
+;; Describe instruction reservations for integer operations.
+;;
+
+(define_insn_reservation "rm7_int_other" 1
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "arith,shift,signext,slt,clz,const,condmove,logical,move,nop,trap"))
+  "rm7_iaddsub")
+
+(define_insn_reservation "rm7_ld" 2
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "load,fpload,fpidxload"))
+  "rm7_imem")
+
+(define_insn_reservation "rm7_st" 1
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "store,fpstore,fpidxstore"))
+  "rm7_imem")
+
+(define_insn_reservation "rm7_idiv_si" 36
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "idiv")
+	    (eq_attr "mode" "SI")))
+  "rm7_impydiv+(rm7_impydiv_iter*36)")
+
+(define_insn_reservation "rm7_idiv_di" 68
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "idiv")
+	    (eq_attr "mode" "DI")))
+  "rm7_impydiv+(rm7_impydiv_iter*68)")
+
+(define_insn_reservation "rm7_impy_si_mult" 5
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "imul,imadd")
+	    (eq_attr "mode" "SI")))
+  "rm7_impydiv+(rm7_impydiv_iter*3)")
+
+;; There are an additional 2 stall cycles.
+(define_insn_reservation "rm7_impy_si_mul" 2
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "imul3")
+	    (eq_attr "mode" "SI")))
+  "rm7_impydiv")
+
+(define_insn_reservation "rm7_impy_di" 9
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "imul,imul3")
+	    (eq_attr "mode" "DI")))
+  "rm7_impydiv+(rm7_impydiv_iter*8)")
+
+;; Move to/from HI/LO.
+(define_insn_reservation "rm7_mthilo" 3
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "mthilo"))
+  "rm7_impydiv")
+
+(define_insn_reservation "rm7_mfhilo" 1
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "mfhilo"))
+  "rm7_impydiv")
+
+;; Move to/from fp coprocessor.
+(define_insn_reservation "rm7_ixfer" 2
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "mfc,mtc"))
+  "rm7_iaddsub")
+
+(define_insn_reservation "rm7_ibr" 3
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "branch,jump,call"))
+  "rm7_branch")
+
+;;
+;; Describe instruction reservations for the floating-point operations.
+;;
+(define_insn_reservation "rm7_fp_quick" 4
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "fneg,fcmp,fabs,fmove"))
+  "rm7_fpadd")
+
+(define_insn_reservation "rm7_fp_other" 4
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "fadd"))
+  "rm7_fpadd")
+
+(define_insn_reservation "rm7_fp_cvt" 4
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "fcvt"))
+  "rm7_fpadd")
+
+(define_insn_reservation "rm7_fp_divsqrt_df" 36
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "fdiv,frdiv,fsqrt")
+	    (eq_attr "mode" "DF")))
+  "rm7_fpdivsqr+(rm7_fpdivsqr_iter*36)")
+
+(define_insn_reservation "rm7_fp_divsqrt_sf" 21
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "fdiv,frdiv,fsqrt")
+	    (eq_attr "mode" "SF")))
+  "rm7_fpdivsqr+(rm7_fpdivsqr_iter*21)")
+
+(define_insn_reservation "rm7_fp_rsqrt_df" 68
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "frsqrt")
+	    (eq_attr "mode" "DF")))
+  "rm7_fpdivsqr+(rm7_fpdivsqr_iter*68)")
+
+(define_insn_reservation "rm7_fp_rsqrt_sf" 38
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "frsqrt")
+	    (eq_attr "mode" "SF")))
+  "rm7_fpdivsqr+(rm7_fpdivsqr_iter*38)")
+
+(define_insn_reservation "rm7_fp_mpy_sf" 4
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "fmul,fmadd")
+	    (eq_attr "mode" "SF")))
+  "rm7_fpmpy+rm7_fpmpy_iter")
+
+(define_insn_reservation "rm7_fp_mpy_df" 5
+  (and (eq_attr "cpu" "r7000")
+       (and (eq_attr "type" "fmul,fmadd")
+	    (eq_attr "mode" "DF")))
+  "rm7_fpmpy+(rm7_fpmpy_iter*2)")
+
+;; Force single-dispatch for unknown or multi.
+(define_insn_reservation "rm7_unknown" 1
+  (and (eq_attr "cpu" "r7000")
+       (eq_attr "type" "unknown,multi"))
+  "rm7_single_dispatch")