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
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1 files changed, 156 insertions, 0 deletions

diff --git a/gcc/config/mips/mips-fixed.md b/gcc/config/mips/mips-fixed.md
new file mode 100644
index 000000000..d5dd909b1
--- /dev/null
+++ b/gcc/config/mips/mips-fixed.md
@@ -0,0 +1,156 @@
+;; Copyright (C) 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/>.
+;;
+;; This file contains MIPS instructions that support fixed-point operations.
+
+;; All supported fixed-point modes
+(define_mode_iterator FIXED [(QQ "") (HQ "") (SQ "") (DQ "TARGET_64BIT")
+			     (UQQ "") (UHQ "") (USQ "") (UDQ "TARGET_64BIT")
+			     (HA "") (SA "") (DA "TARGET_64BIT")
+			     (UHA "") (USA "") (UDA "TARGET_64BIT")])
+
+;; For signed add/sub with saturation
+(define_mode_iterator ADDSUB [(HQ "") (SQ "") (HA "") (SA "") (V2HQ "")
+			      (V2HA "")])
+(define_mode_attr addsubfmt [(HQ "ph") (SQ "w") (HA "ph") (SA "w")
+			     (V2HQ "ph") (V2HA "ph")])
+
+;; For unsigned add/sub with saturation
+(define_mode_iterator UADDSUB [(UQQ "ISA_HAS_DSP") (UHQ "ISA_HAS_DSPR2")
+			       (UHA "ISA_HAS_DSPR2") (V4UQQ "ISA_HAS_DSP")
+			       (V2UHQ "ISA_HAS_DSPR2") (V2UHA "ISA_HAS_DSPR2")])
+(define_mode_attr uaddsubfmt [(UQQ "qb") (UHQ "ph") (UHA "ph")
+			      (V4UQQ "qb") (V2UHQ "ph") (V2UHA "ph")])
+
+;; For signed multiplication with saturation
+(define_mode_iterator MULQ [(V2HQ "ISA_HAS_DSP") (HQ "ISA_HAS_DSP")
+			    (SQ "ISA_HAS_DSPR2")])
+(define_mode_attr mulqfmt [(V2HQ "ph") (HQ "ph") (SQ "w")])
+
+(define_insn "add<mode>3"
+  [(set (match_operand:FIXED 0 "register_operand" "=d")
+	(plus:FIXED (match_operand:FIXED 1 "register_operand" "d")
+		    (match_operand:FIXED 2 "register_operand" "d")))]
+  ""
+  "<d>addu\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "usadd<mode>3"
+  [(parallel
+    [(set (match_operand:UADDSUB 0 "register_operand" "=d")
+	  (us_plus:UADDSUB (match_operand:UADDSUB 1 "register_operand" "d")
+			   (match_operand:UADDSUB 2 "register_operand" "d")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2)] UNSPEC_ADDQ_S))])]
+  ""
+  "addu_s.<uaddsubfmt>\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "ssadd<mode>3"
+  [(parallel
+    [(set (match_operand:ADDSUB 0 "register_operand" "=d")
+	  (ss_plus:ADDSUB (match_operand:ADDSUB 1 "register_operand" "d")
+			  (match_operand:ADDSUB 2 "register_operand" "d")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2)] UNSPEC_ADDQ_S))])]
+  "ISA_HAS_DSP"
+  "addq_s.<addsubfmt>\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "sub<mode>3"
+  [(set (match_operand:FIXED 0 "register_operand" "=d")
+        (minus:FIXED (match_operand:FIXED 1 "register_operand" "d")
+		     (match_operand:FIXED 2 "register_operand" "d")))]
+  ""
+  "<d>subu\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "ussub<mode>3"
+  [(parallel
+    [(set (match_operand:UADDSUB 0 "register_operand" "=d")
+	  (us_minus:UADDSUB (match_operand:UADDSUB 1 "register_operand" "d")
+			    (match_operand:UADDSUB 2 "register_operand" "d")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2)] UNSPEC_SUBQ_S))])]
+  ""
+  "subu_s.<uaddsubfmt>\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "sssub<mode>3"
+  [(parallel
+    [(set (match_operand:ADDSUB 0 "register_operand" "=d")
+	  (ss_minus:ADDSUB (match_operand:ADDSUB 1 "register_operand" "d")
+			   (match_operand:ADDSUB 2 "register_operand" "d")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2)] UNSPEC_SUBQ_S))])]
+  "ISA_HAS_DSP"
+  "subq_s.<addsubfmt>\t%0,%1,%2"
+  [(set_attr "type" "arith")
+   (set_attr "mode" "<IMODE>")])
+
+(define_insn "ssmul<mode>3"
+  [(parallel
+    [(set (match_operand:MULQ 0 "register_operand" "=d")
+          (ss_mult:MULQ (match_operand:MULQ 1 "register_operand" "d")
+			(match_operand:MULQ 2 "register_operand" "d")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+          (unspec:CCDSP [(match_dup 1) (match_dup 2)] UNSPEC_MULQ_RS_PH))
+     (clobber (match_scratch:DI 3 "=x"))])]
+  ""
+  "mulq_rs.<mulqfmt>\t%0,%1,%2"
+  [(set_attr "type"     "imul3")
+   (set_attr "mode"     "<IMODE>")])
+
+(define_insn "ssmaddsqdq4"
+  [(parallel
+    [(set (match_operand:DQ 0 "register_operand" "=a")
+	  (ss_plus:DQ
+	  (ss_mult:DQ (sat_fract:DQ (match_operand:SQ 1
+				     "register_operand" "d"))
+                      (sat_fract:DQ (match_operand:SQ 2
+				     "register_operand" "d")))
+          (match_operand:DQ 3 "register_operand" "0")))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2) (match_dup 3)]
+			UNSPEC_DPAQ_SA_L_W))])]
+  "ISA_HAS_DSP && !TARGET_64BIT"
+  "dpaq_sa.l.w\t%q0,%1,%2"
+  [(set_attr "type" "imadd")
+   (set_attr "mode" "SI")])
+
+(define_insn "ssmsubsqdq4"
+  [(parallel
+    [(set (match_operand:DQ 0 "register_operand" "=a")
+          (ss_minus:DQ
+	   (match_operand:DQ 3 "register_operand" "0")
+           (ss_mult:DQ (sat_fract:DQ (match_operand:SQ 1
+				      "register_operand" "d"))
+                       (sat_fract:DQ (match_operand:SQ 2
+				      "register_operand" "d")))))
+     (set (reg:CCDSP CCDSP_OU_REGNUM)
+	  (unspec:CCDSP [(match_dup 1) (match_dup 2) (match_dup 3)]
+			UNSPEC_DPSQ_SA_L_W))])]
+  "ISA_HAS_DSP && !TARGET_64BIT"
+  "dpsq_sa.l.w\t%q0,%1,%2"
+  [(set_attr "type" "imadd")
+   (set_attr "mode" "SI")])