Patch to add description of MaverickCrunch pipelines.

This increases the speed as measured by the fftw benchmark from
5.4 to 5.8 mflops and reduced LAME's execution time from 2m30 to 2m20.

I don't know who wrote this - I got it from Hasjim Williams.

        -martinwguy

Index: gcc-4.2.4/gcc/config/arm/arm.md
===================================================================
--- gcc-4.2.4.orig/gcc/config/arm/arm.md	2009-08-09 15:43:46.000000000 +0100
+++ gcc-4.2.4/gcc/config/arm/arm.md	2009-08-09 15:45:07.000000000 +0100
@@ -223,12 +223,9 @@
 ; store2	store 2 words
 ; store3	store 3 words
 ; store4	store 4 (or more) words
-;  Additions for Cirrus Maverick co-processor:
-; mav_farith	Floating point arithmetic (4 cycle)
-; mav_dmult	Double multiplies (7 cycle)
 ;
 (define_attr "type"
-	"alu,alu_shift,alu_shift_reg,mult,block,float,fdivx,fdivd,fdivs,fmul,ffmul,farith,ffarith,f_flag,float_em,f_load,f_store,f_loads,f_loadd,f_stores,f_stored,f_mem_r,r_mem_f,f_2_r,r_2_f,f_cvt,branch,call,load_byte,load1,load2,load3,load4,store1,store2,store3,store4,mav_farith,mav_dmult" 
+	"alu,alu_shift,alu_shift_reg,mult,block,float,fdivx,fdivd,fdivs,fmul,ffmul,farith,ffarith,f_flag,float_em,f_load,f_store,f_loads,f_loadd,f_stores,f_stored,f_mem_r,r_mem_f,f_2_r,r_2_f,f_cvt,branch,call,load_byte,load1,load2,load3,load4,store1,store2,store3,store4"
 	(if_then_else 
 	 (eq_attr "insn" "smulxy,smlaxy,smlalxy,smulwy,smlawx,mul,muls,mla,mlas,umull,umulls,umlal,umlals,smull,smulls,smlal,smlals")
 	 (const_string "mult")
@@ -6967,7 +6964,7 @@
 		      (match_operand:SF 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcmps%?\\tr15, %V0, %V1"
-  [(set_attr "type"   "mav_farith")
+  [(set_attr "type"   "farith")
    (set_attr "cirrus" "compare")]
 )
 
@@ -6978,7 +6975,7 @@
 		      (match_operand:DF 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcmpd%?\\tr15, %V0, %V1"
-  [(set_attr "type"   "mav_farith")
+  [(set_attr "type"   "farith")
    (set_attr "cirrus" "compare")]
 )
 
@@ -7001,7 +6998,7 @@
 		    (match_operand:DI 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK & 0"
   "cfcmp64%?\\tr15, %V0, %V1"
-  [(set_attr "type"   "mav_farith")
+  [(set_attr "type"   "farith")
    (set_attr "cirrus" "compare")]
 )
 
Index: gcc-4.2.4/gcc/config/arm/cirrus.md
===================================================================
--- gcc-4.2.4.orig/gcc/config/arm/cirrus.md	2009-08-09 15:43:46.000000000 +0100
+++ gcc-4.2.4/gcc/config/arm/cirrus.md	2009-08-09 15:45:04.000000000 +0100
@@ -19,6 +19,58 @@
 ;; along with GCC; see the file COPYING3.  If not see
 ;; <http://www.gnu.org/licenses/>.
 
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Pipeline description
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(define_automaton "crunch")
+
+;; There are 2 pipelines in the CRUNCH unit.
+;;
+;; - A 8/9-stage? FMAC pipeline (7/8? execute + writeback)
+;;
+;; - A 4-stage LS pipeline (execute + 2 memory + writeback) with forward from
+;;   second memory stage for loads.
+
+(define_cpu_unit "crunch_fmac" "crunch")
+
+(define_cpu_unit "crunch_ls" "crunch")
+
+;; The CRUNCH "type" attributes differ from those used in the FPA and VFP model.
+;; ffarith	Fast floating point insns.
+;; farith	Most arithmetic insns.
+;; fmul		Double precision multiply.
+;; f_load[sd]	Floating point load from memory.
+;; f_store[sd]	Floating point store to memory.
+;; f_2_r	Transfer crunch to arm reg.
+;; r_2_f	Transfer arm to crunch reg.
+;; f_cvt	Convert floating<->integral
+
+(define_insn_reservation "crunch_ffarith" 18
+ (and (eq_attr "fpu" "maverick")
+      (eq_attr "type" "ffarith"))
+ "crunch_fmac")
+
+(define_insn_reservation "crunch_farith" 18
+ (and (eq_attr "fpu" "maverick")
+      (eq_attr "type" "farith,f_cvt"))
+ "crunch_fmac")
+
+(define_insn_reservation "crunch_fmul" 30
+ (and (eq_attr "fpu" "maverick")
+      (eq_attr "type" "fmul"))
+ "crunch_fmac*2")
+
+;; Moves to/from arm regs also use the load/store pipeline.
+(define_insn_reservation "crunch_fload" 8
+ (and (eq_attr "fpu" "maverick")
+      (eq_attr "type" "f_loads,f_loadd,r_2_f"))
+ "crunch_ls")
+
+(define_insn_reservation "crunch_fstore" 8
+ (and (eq_attr "fpu" "maverick")
+      (eq_attr "type" "f_stores,f_stored,f_2_r"))
+ "crunch_ls")
 
 ; Cirrus types for invalid insn combinations
 ; not		Not a cirrus insn
@@ -35,7 +87,7 @@
 		 (match_operand:DI 2 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfadd64%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -45,7 +97,7 @@
 		 (match_operand:SI 2 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfadd32%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -55,7 +107,7 @@
 		 (match_operand:SF 2 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfadds%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -65,7 +117,7 @@
 		 (match_operand:DF 2 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfaddd%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -75,7 +127,7 @@
 		  (match_operand:DI 2 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfsub64%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -85,7 +137,7 @@
 		  (match_operand:SI 2 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfsub32%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -95,7 +147,7 @@
 		  (match_operand:SF 2 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfsubs%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -105,7 +157,7 @@
 		  (match_operand:DF 2 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfsubd%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -115,7 +167,7 @@
 		 (match_operand:SI 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfmul32%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -125,7 +177,7 @@
 		 (match_operand:DI 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmul64%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_dmult")
+  [(set_attr "type" "fmul")
    (set_attr "cirrus" "normal")]
 )
 
@@ -137,7 +189,7 @@
 	  (match_operand:SI          3 "cirrus_fp_register"  "0")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfmac32%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -150,7 +202,7 @@
 		   (match_operand:SI 3 "cirrus_fp_register"  "v"))))]
   "0 && TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmsc32%?\\t%V0, %V2, %V3"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -160,7 +212,7 @@
 		 (match_operand:SF 2 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmuls%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_farith")
+  [(set_attr "type" "farith")
    (set_attr "cirrus" "normal")]
 )
 
@@ -170,7 +222,7 @@
 		 (match_operand:DF 2 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmuld%?\\t%V0, %V1, %V2"
-  [(set_attr "type" "mav_dmult")
+  [(set_attr "type" "fmul")
    (set_attr "cirrus" "normal")]
 )
 
@@ -180,7 +232,8 @@
 		   (match_operand:SI 2 "cirrus_shift_const"  "")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfsh32%?\\t%V0, %V1, #%s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "cirrus_ashiftrt_const"
@@ -189,7 +242,8 @@
 		     (match_operand:SI 2 "cirrus_shift_const"  "")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfsh32%?\\t%V0, %V1, #-%s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "cirrus_ashlsi3"
@@ -198,7 +252,8 @@
 		   (match_operand:SI 2 "register_operand"    "r")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfrshl32%?\\t%V1, %V0, %s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "ashldi3_cirrus"
@@ -207,7 +262,8 @@
 		   (match_operand:SI 2 "register_operand"    "r")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfrshl64%?\\t%V1, %V0, %s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "cirrus_ashldi_const"
@@ -216,7 +272,8 @@
 		   (match_operand:SI 2 "cirrus_shift_const"  "")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfsh64%?\\t%V0, %V1, #%s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "cirrus_ashiftrtdi_const"
@@ -225,7 +282,8 @@
 		     (match_operand:SI 2 "cirrus_shift_const"  "")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfsh64%?\\t%V0, %V1, #-%s2"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_absdi2"
@@ -233,7 +291,8 @@
 	(abs:DI (match_operand:DI 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfabs64%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 ;; This doesn't really clobber ``cc''.  Fixme: aldyh.  
@@ -243,7 +302,8 @@
    (clobber (reg:CC CC_REGNUM))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfneg64%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_negsi2"
@@ -251,7 +311,8 @@
 	(neg:SI (match_operand:SI 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfneg32%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 ; Cirrus hardware bug: neg 0 -> 0 instead of -0
@@ -260,7 +321,8 @@
 	(neg:SF (match_operand:SF 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && ! HONOR_SIGNED_ZEROS (SFmode)"
   "cfnegs%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_negdf2"
@@ -268,7 +330,8 @@
 	(neg:DF (match_operand:DF 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && ! HONOR_SIGNED_ZEROS (DFmode)"
   "cfnegd%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 ;; This doesn't really clobber the condition codes either.  
@@ -278,7 +341,8 @@
    (clobber (reg:CC CC_REGNUM))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK && 0"
   "cfabs32%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_abssf2"
@@ -286,7 +350,8 @@
         (abs:SF (match_operand:SF 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfabss%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_absdf2"
@@ -294,7 +359,8 @@
         (abs:DF (match_operand:DF 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfabsd%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "farith")
+   (set_attr "cirrus" "normal")]
 )
 
 ;; Convert Cirrus-SI to Cirrus-SF
@@ -303,7 +369,8 @@
  	(float:SF (match_operand:SI 1 "s_register_operand"  "r")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmv64lr%?\\t%Z0, %1\;cfcvt32s%?\\t%V0, %Y0"
-  [(set_attr "length" "8")
+  [(set_attr "type" "f_cvt")
+   (set_attr "length" "8")
    (set_attr "cirrus" "move")]
 )
 
@@ -312,7 +379,8 @@
 	(float:DF (match_operand:SI 1 "s_register_operand" "r")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfmv64lr%?\\t%Z0, %1\;cfcvt32d%?\\t%V0, %Y0"
-  [(set_attr "length" "8")
+  [(set_attr "type" "f_cvt")
+   (set_attr "length" "8")
    (set_attr "cirrus" "move")]
 )
 
@@ -321,14 +389,18 @@
 	(float:SF (match_operand:DI 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcvt64s%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")])
+  [(set_attr "type" "f_cvt")
+   (set_attr "cirrus" "normal")]
+)
 
 (define_insn "floatdidf2"
   [(set (match_operand:DF 0 "cirrus_fp_register" "=v")
 	(float:DF (match_operand:DI 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcvt64d%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")])
+  [(set_attr "type" "f_cvt")
+   (set_attr "cirrus" "normal")]
+)
 
 (define_insn "cirrus_truncsfsi2"
   [(set (match_operand:SI         0 "s_register_operand" "=r")
@@ -336,7 +408,8 @@
    (clobber (match_scratch:DF     2                      "=v"))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cftruncs32%?\\t%Y2, %V1\;cfmvr64l%?\\t%0, %Z2"
-  [(set_attr "length" "8")
+  [(set_attr "type" "f_cvt")
+   (set_attr "length" "8")
    (set_attr "cirrus" "normal")]
 )
 
@@ -346,7 +419,8 @@
    (clobber (match_scratch:DF     2                      "=v"))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cftruncd32%?\\t%Y2, %V1\;cfmvr64l%?\\t%0, %Z2"
-  [(set_attr "length" "8")]
+  [(set_attr "type" "f_cvt")
+   (set_attr "length" "8")]
 )
 
 (define_insn "*cirrus_truncdfsf2"
@@ -355,7 +429,8 @@
          (match_operand:DF 1 "cirrus_fp_register" "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcvtds%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "f_cvt")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_extendsfdf2"
@@ -363,7 +438,8 @@
         (float_extend:DF (match_operand:SF 1 "cirrus_fp_register"  "v")))]
   "TARGET_ARM && TARGET_HARD_FLOAT && TARGET_MAVERICK"
   "cfcvtsd%?\\t%V0, %V1"
-  [(set_attr "cirrus" "normal")]
+  [(set_attr "type" "f_cvt")
+   (set_attr "cirrus" "normal")]
 )
 
 (define_insn "*cirrus_arm_movdi"