Use the stock file here. I cannot determine if our previous (rev 1.2)

changes for ObjC are still appropriate.

1 files changed, 1869 insertions, 1490 deletions

diff --git a/contrib/gcc/config/i386/i386.md b/contrib/gcc/config/i386/i386.md
index f85992f..aa3f07e 100644
--- a/contrib/gcc/config/i386/i386.md
+++ b/contrib/gcc/config/i386/i386.md
@@ -64,13 +64,52 @@
 ;;    prevent insns referencing it being scheduled across the initial
 ;;    decrement of the stack pointer.
 ;; 5  This is a `bsf' operation.
+;; 6  This is the @GOT offset of a PIC address.
+;; 7  This is the @GOTOFF offset of a PIC address.
+;; 8  This is a reference to a symbol's @PLT address.
 
 ;; This shadows the processor_type enumeration, so changes must be made
 ;; to i386.h at the same time.
 
-(define_attr "type" "integer,idiv,imul,fld,fpop,fpdiv,fpmul"
+;; $FreeBSD$
+
+(define_attr "type"
+  "integer,binary,memory,test,compare,fcompare,idiv,imul,lea,fld,fpop,fpdiv,fpmul"
   (const_string "integer"))
 
+(define_attr "memory" "none,load,store"
+  (cond [(eq_attr "type" "idiv,lea")
+	 (const_string "none")
+
+	 (eq_attr "type" "fld")
+	 (const_string "load")
+
+	 (eq_attr "type" "test")
+	 (if_then_else (match_operand 0 "memory_operand" "")
+		       (const_string "load")
+		       (const_string "none"))
+
+	 (eq_attr "type" "compare,fcompare")
+	 (if_then_else (ior (match_operand 0 "memory_operand" "")
+			    (match_operand 1 "memory_operand" ""))
+		       (const_string "load")
+		       (const_string "none"))
+
+	 (and (eq_attr "type" "integer,memory,fpop")
+	      (match_operand 0 "memory_operand" ""))
+	 (const_string "store")
+
+	 (and (eq_attr "type" "integer,memory,fpop")
+	      (match_operand 1 "memory_operand" ""))
+	 (const_string "load")
+
+	 (and (eq_attr "type" "binary,imul,fpmul,fpdiv")
+	      (ior (match_operand 1 "memory_operand" "")
+		   (match_operand 2 "memory_operand" "")))
+	 (const_string "load")]
+
+	(const_string "none")))
+
 ;; Functional units
 
 ; (define_function_unit NAME MULTIPLICITY SIMULTANEITY
@@ -89,11 +128,11 @@
 ;; Floating point
 
 (define_function_unit "fp" 1 0
- (and (eq_attr "type" "fpop") (eq_attr "cpu" "i386,i486"))
+ (and (eq_attr "type" "fpop,fcompare") (eq_attr "cpu" "i386,i486"))
  5 5)
 
 (define_function_unit "fp" 1 0
- (and (eq_attr "type" "fpop") (eq_attr "cpu" "pentium,pentiumpro")) 
+ (and (eq_attr "type" "fpop,fcompare") (eq_attr "cpu" "pentium,pentiumpro")) 
  3 0)
 
 (define_function_unit "fp" 1 0
@@ -117,12 +156,69 @@
  10 10)
 
 (define_function_unit "fp" 1 0
- (eq_attr "type" "fld") 
+  (and (eq_attr "type" "fld") (eq_attr "cpu" "!pentiumpro,k6"))
  1 0)
 
-(define_function_unit "integer" 1 0
-  (and (eq_attr "type" "integer") (eq_attr "cpu" "!i386"))
- 2 0)
+;; K6 FPU is not pipelined.
+(define_function_unit "fp" 1 0
+  (and (eq_attr "type" "fpop,fpmul,fcompare") (eq_attr "cpu" "k6"))
+ 2 2)
+
+;; i386 and i486 have one integer unit, which need not be modeled
+
+(define_function_unit "integer" 2 0
+  (and (eq_attr "type" "integer,binary,test,compare,lea") (eq_attr "cpu" "pentium,pentiumpro"))
+ 1 0)
+
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "k6")
+       (and (eq_attr "type" "integer,binary,test,compare")
+	    (eq_attr "memory" "!load")))
+  1 0)
+
+;; Internally, K6 converts REG OP MEM instructions into a load (2 cycles)
+;; and a register operation (1 cycle).
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "k6")
+       (and (eq_attr "type" "integer,binary,test,compare")
+	    (eq_attr "memory" "load")))
+  3 0)
+
+;; Multiplies use one of the integer units
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "pentium") (eq_attr "type" "imul"))
+  11 11)
+
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "k6") (eq_attr "type" "imul"))
+  2 2)
+
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "pentium") (eq_attr "type" "idiv"))
+  25 25)
+
+(define_function_unit "integer" 2 0
+  (and (eq_attr "cpu" "k6") (eq_attr "type" "idiv"))
+  17 17)
+
+;; Pentium Pro and K6 have a separate load unit.
+(define_function_unit "load" 1 0
+  (and (eq_attr "cpu" "pentiumpro") (eq_attr "memory" "load"))
+  3 0)
+
+(define_function_unit "load" 1 0
+  (and (eq_attr "cpu" "k6") (eq_attr "memory" "load"))
+  2 0)
+
+;; Pentium Pro and K6 have a separate store unit.
+(define_function_unit "store" 1 0
+  (and (eq_attr "cpu" "pentiumpro,k6") (eq_attr "memory" "store"))
+  1 0)
+
+;; lea executes in the K6 store unit with 1 cycle latency
+(define_function_unit "store" 1 0
+  (and (eq_attr "cpu" "k6") (eq_attr "type" "lea"))
+  1 0)
 
 
 ;; "movl MEM,REG / testl REG,REG" is faster on a 486 than "cmpl $0,MEM".
@@ -140,7 +236,7 @@
 ;; Processor type -- this attribute must exactly match the processor_type
 ;; enumeration in i386.h.
 
-(define_attr "cpu" "i386,i486,pentium,pentiumpro"
+(define_attr "cpu" "i386,i486,pentium,pentiumpro,k6"
   (const (symbol_ref "ix86_cpu")))
 
 (define_insn "tstsi_1"
@@ -154,7 +250,8 @@
 
   operands[1] = const0_rtx;
   return AS2 (cmp%L0,%1,%0);
-}")
+}"
+  [(set_attr "type" "test")])
 
 (define_expand "tstsi"
   [(set (cc0)
@@ -179,7 +276,8 @@
 
   operands[1] = const0_rtx;
   return AS2 (cmp%W0,%1,%0);
-}")
+}"
+  [(set_attr "type" "test")])
 
 (define_expand "tsthi"
   [(set (cc0)
@@ -204,7 +302,8 @@
 
   operands[1] = const0_rtx;
   return AS2 (cmp%B0,%1,%0);
-}")
+}"
+  [(set_attr "type" "test")])
 
 (define_expand "tstqi"
   [(set (cc0)
@@ -234,7 +333,8 @@
     output_asm_insn (AS1 (fstp,%y0), operands);
 
   return output_fp_cc0_set (insn);
-}")
+}"
+  [(set_attr "type" "test")])
 
 ;; Don't generate tstsf if generating IEEE code, since the `ftst' opcode
 ;; isn't IEEE compliant.
@@ -268,7 +368,8 @@
     output_asm_insn (AS1 (fstp,%y0), operands);
 
   return output_fp_cc0_set (insn);
-}")
+}"
+  [(set_attr "type" "test")])
 
 ;; Don't generate tstdf if generating IEEE code, since the `ftst' opcode
 ;; isn't IEEE compliant.
@@ -302,7 +403,8 @@
     output_asm_insn (AS1 (fstp,%y0), operands);
 
   return output_fp_cc0_set (insn);
-}")
+}"
+  [(set_attr "type" "test")])
 
 ;; Don't generate tstxf if generating IEEE code, since the `ftst' opcode
 ;; isn't IEEE compliant.
@@ -328,7 +430,8 @@
 	(compare (match_operand:SI 0 "nonimmediate_operand" "mr,r")
 		 (match_operand:SI 1 "general_operand" "ri,mr")))]
   "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
-  "* return AS2 (cmp%L0,%1,%0);")
+  "* return AS2 (cmp%L0,%1,%0);"
+  [(set_attr "type" "compare")])
 
 (define_expand "cmpsi"
   [(set (cc0)
@@ -351,7 +454,8 @@
 	(compare (match_operand:HI 0 "nonimmediate_operand" "mr,r")
 		 (match_operand:HI 1 "general_operand" "ri,mr")))]
   "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
-  "* return AS2 (cmp%W0,%1,%0);")
+  "* return AS2 (cmp%W0,%1,%0);"
+  [(set_attr "type" "compare")])
 
 (define_expand "cmphi"
   [(set (cc0)
@@ -374,7 +478,8 @@
 	(compare (match_operand:QI 0 "nonimmediate_operand" "q,mq")
 		 (match_operand:QI 1 "general_operand" "qm,nq")))]
   "GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM"
-  "* return AS2 (cmp%B0,%1,%0);")
+  "* return AS2 (cmp%B0,%1,%0);"
+  [(set_attr "type" "compare")])
 
 (define_expand "cmpqi"
   [(set (cc0)
@@ -403,27 +508,8 @@
 			 (match_operand:XF 1 "register_operand" "f")]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(match_operand:XF 0 "register_operand" "f")
-			 (float:XF
-			  (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(float:XF
-			  (match_operand:SI 0 "nonimmediate_operand" "rm"))
-			 (match_operand:XF 1 "register_operand" "f")]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -433,7 +519,8 @@
 			  (match_operand:DF 1 "nonimmediate_operand" "fm"))]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -443,7 +530,8 @@
 			 (match_operand:XF 1 "register_operand" "f")]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -453,7 +541,8 @@
 			  (match_operand:SF 1 "nonimmediate_operand" "fm"))]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -463,7 +552,8 @@
 			 (match_operand:XF 1 "register_operand" "f")]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -471,7 +561,8 @@
 			(match_operand:XF 1 "register_operand" "f")))
    (clobber (match_scratch:HI 2 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -481,27 +572,8 @@
    (clobber (match_scratch:HI 3 "=a,a"))]
   "TARGET_80387
    && (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM)"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(match_operand:DF 0 "register_operand" "f")
-			 (float:DF
-			  (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(float:DF
-			  (match_operand:SI 0 "nonimmediate_operand" "rm"))
-			 (match_operand:DF 1 "register_operand" "f")]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -511,7 +583,8 @@
 			  (match_operand:SF 1 "nonimmediate_operand" "fm"))]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -521,7 +594,8 @@
 			 (match_operand:DF 1 "register_operand" "f")]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -531,7 +605,8 @@
 			 (match_operand:DF 1 "nonimmediate_operand" "fm")]))
    (clobber (match_scratch:HI 3 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -539,7 +614,8 @@
 			(match_operand:DF 1 "register_operand" "f")))
    (clobber (match_scratch:HI 2 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 ;; These two insns will never be generated by combine due to the mode of
 ;; the COMPARE.
@@ -561,7 +637,7 @@
 ;  "TARGET_80387"
 ;  "* return output_float_compare (insn, operands);")
 
-(define_insn "cmpsf_cc_1"
+(define_insn "*cmpsf_cc_1"
   [(set (cc0)
 	(match_operator 2 "VOIDmode_compare_op"
 			[(match_operand:SF 0 "nonimmediate_operand" "f,fm")
@@ -569,27 +645,8 @@
    (clobber (match_scratch:HI 3 "=a,a"))]
   "TARGET_80387
    && (GET_CODE (operands[0]) != MEM || GET_CODE (operands[1]) != MEM)"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(match_operand:SF 0 "register_operand" "f")
-			 (float:SF
-			  (match_operand:SI 1 "nonimmediate_operand" "rm"))]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
-
-(define_insn ""
-  [(set (cc0)
-	(match_operator 2 "VOIDmode_compare_op"
-			[(float:SF
-			  (match_operand:SI 0 "nonimmediate_operand" "rm"))
-			 (match_operand:SF 1 "register_operand" "f")]))
-   (clobber (match_scratch:HI 3 "=a"))]
-  "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_insn ""
   [(set (cc0)
@@ -597,7 +654,8 @@
 			(match_operand:SF 1 "register_operand" "f")))
    (clobber (match_scratch:HI 2 "=a"))]
   "TARGET_80387"
-  "* return output_float_compare (insn, operands);")
+  "* return output_float_compare (insn, operands);"
+  [(set_attr "type" "fcompare")])
 
 (define_expand "cmpxf"
   [(set (cc0)
@@ -711,7 +769,10 @@
   /* For small integers, we may actually use testb. */
   if (GET_CODE (operands[1]) == CONST_INT
       && ! (GET_CODE (operands[0]) == MEM && MEM_VOLATILE_P (operands[0]))
-      && (! REG_P (operands[0]) || QI_REG_P (operands[0])))
+      && (! REG_P (operands[0]) || QI_REG_P (operands[0]))
+      /* A Pentium test is pairable only with eax. Not with ah or al.  */
+      && (! REG_P (operands[0]) || REGNO (operands[0]) || !TARGET_PENTIUM
+          || optimize_size))
     {
       /* We may set the sign bit spuriously.  */
 
@@ -757,7 +818,8 @@
     return AS2 (test%L0,%1,%0);
 
   return AS2 (test%L1,%0,%1);
-}")
+}"
+  [(set_attr "type" "compare")])
 
 (define_insn ""
   [(set (cc0)
@@ -805,7 +867,8 @@
     return AS2 (test%W0,%1,%0);
 
   return AS2 (test%W1,%0,%1);
-}")
+}"
+  [(set_attr "type" "compare")])
 
 (define_insn ""
   [(set (cc0)
@@ -818,7 +881,8 @@
     return AS2 (test%B0,%1,%0);
 
   return AS2 (test%B1,%0,%1);
-}")
+}"
+  [(set_attr "type" "compare")])
 
 ;; move instructions.
 ;; There is one for each machine mode,
@@ -829,13 +893,15 @@
   [(set (match_operand:SI 0 "push_operand" "=<")
 	(match_operand:SI 1 "nonmemory_operand" "rn"))]
   "flag_pic"
-  "* return AS1 (push%L0,%1);")
+  "* return AS1 (push%L0,%1);"
+  [(set_attr "memory" "store")])
 
 (define_insn ""
   [(set (match_operand:SI 0 "push_operand" "=<")
 	(match_operand:SI 1 "nonmemory_operand" "ri"))]
   "!flag_pic"
-  "* return AS1 (push%L0,%1);")
+  "* return AS1 (push%L0,%1);"
+  [(set_attr "memory" "store")])
 
 ;; On a 386, it is faster to push MEM directly.
 
@@ -843,7 +909,9 @@
   [(set (match_operand:SI 0 "push_operand" "=<")
 	(match_operand:SI 1 "memory_operand" "m"))]
   "TARGET_PUSH_MEMORY"
-  "* return AS1 (push%L0,%1);")
+  "* return AS1 (push%L0,%1);"
+  [(set_attr "type" "memory")
+   (set_attr "memory" "load")])
 
 ;; General case of fullword move.
 
@@ -863,7 +931,7 @@
 
   /* Don't generate memory->memory moves, go through a register */
   else if (TARGET_MOVE
-	   && (reload_in_progress | reload_completed) == 0
+	   && no_new_pseudos == 0
 	   && GET_CODE (operands[0]) == MEM
 	   && GET_CODE (operands[1]) == MEM)
     {
@@ -874,18 +942,24 @@
 ;; On i486, incl reg is faster than movl $1,reg.
 
 (define_insn ""
-  [(set (match_operand:SI 0 "general_operand" "=g,r")
-	(match_operand:SI 1 "general_operand" "rn,im"))]
+  [(set (match_operand:SI 0 "general_operand" "=g,r,r")
+	(match_operand:SI 1 "general_operand" "rn,i,m"))]
   "((!TARGET_MOVE || GET_CODE (operands[0]) != MEM)
     || (GET_CODE (operands[1]) != MEM))
    && flag_pic"
   "*
 {
   rtx link;
-  if (operands[1] == const0_rtx && REG_P (operands[0]))
+
+  /* K6: mov reg,0 is slightly faster than xor reg,reg but is 3 bytes
+     longer.  */
+  if ((ix86_cpu != PROCESSOR_K6 || optimize_size)
+      && operands[1] == const0_rtx && REG_P (operands[0]))
     return AS2 (xor%L0,%0,%0);
 
   if (operands[1] == const1_rtx
+      /* PPRO and K6 prefer mov to inc to reduce dependencies.  */
+      && (optimize_size || (int)ix86_cpu < (int)PROCESSOR_PENTIUMPRO)
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
       && ! INSN_DELETED_P (XEXP (link, 0))
@@ -901,7 +975,9 @@
     return AS2 (lea%L0,%a1,%0);
 
   return AS2 (mov%L0,%1,%0);
-}")
+}"
+  [(set_attr "type" "integer,integer,memory")
+   (set_attr "memory" "*,*,load")])
 
 (define_insn ""
   [(set (match_operand:SI 0 "general_operand" "=g,r")
@@ -912,10 +988,18 @@
   "*
 {
   rtx link;
+
+  /* Use of xor was disabled for AMD K6 as recommended by the Optimization
+     Manual.  My test shows, that this generally hurts the performance, because
+     mov is longer and takes longer to decode and decoding is the main
+     bottleneck of K6 when executing GCC code.  */
+
   if (operands[1] == const0_rtx && REG_P (operands[0]))
     return AS2 (xor%L0,%0,%0);
 
   if (operands[1] == const1_rtx
+      /* PPRO and K6 prefer mov to inc to reduce dependencies.  */
+      && (optimize_size || (int)ix86_cpu < (int)PROCESSOR_PENTIUMPRO)
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
       && ! INSN_DELETED_P (XEXP (link, 0))
@@ -928,19 +1012,25 @@
     return AS1 (inc%L0,%0);
 
   return AS2 (mov%L0,%1,%0);
-}")
+}"
+  [(set_attr "type" "integer,memory")
+   (set_attr "memory" "*,load")])
 
 (define_insn ""
   [(set (match_operand:HI 0 "push_operand" "=<")
 	(match_operand:HI 1 "nonmemory_operand" "ri"))]
   ""
-  "* return AS1 (push%W0,%1);")
+  "* return AS1 (push%W0,%1);"
+  [(set_attr "type" "memory")
+   (set_attr "memory" "store")])
 
 (define_insn ""
   [(set (match_operand:HI 0 "push_operand" "=<")
 	(match_operand:HI 1 "memory_operand" "m"))]
   "TARGET_PUSH_MEMORY"
-  "* return AS1 (push%W0,%1);")
+  "* return AS1 (push%W0,%1);"
+  [(set_attr "type" "memory")
+   (set_attr "memory" "load")])
 
 ;; On i486, an incl and movl are both faster than incw and movw.
 
@@ -952,7 +1042,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -971,6 +1061,8 @@
     return AS2 (xor%L0,%k0,%k0);
 
   if (REG_P (operands[0]) && operands[1] == const1_rtx 
+      /* PPRO and K6 prefer mov to inc to reduce dependencies.  */
+      && (optimize_size || (int)ix86_cpu < (int)PROCESSOR_PENTIUMPRO)
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
       && ! INSN_DELETED_P (XEXP (link, 0))
@@ -989,7 +1081,7 @@
 	  operands[1] = i386_sext16_if_const (operands[1]);
 	  return AS2 (mov%L0,%k1,%k0);
 	}
-      if (TARGET_PENTIUMPRO)
+      if (! TARGET_ZERO_EXTEND_WITH_AND)
 	{
 	  /* movzwl is faster than movw on the Pentium Pro,
 	   * although not as fast as an aligned movl. */
@@ -1002,7 +1094,9 @@
     }
 
   return AS2 (mov%W0,%1,%0);
-}")
+}"
+  [(set_attr "type" "integer,memory")
+   (set_attr "memory" "*,load")])
 
 (define_expand "movstricthi"
   [(set (strict_low_part (match_operand:HI 0 "general_operand" ""))
@@ -1012,7 +1106,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1027,10 +1121,18 @@
   "*
 {
   rtx link;
+
+  /* Use of xor was disabled for AMD K6 as recommended by the Optimization
+     Manual.  My test shows, that this generally hurts the performance, because
+     mov is longer and takes longer to decode and decoding is the main
+     bottleneck of K6 when executing GCC code.  */
+
   if (operands[1] == const0_rtx && REG_P (operands[0]))
     return AS2 (xor%W0,%0,%0);
 
   if (operands[1] == const1_rtx
+      /* PPRO and K6 prefer mov to inc to reduce dependencies.  */
+      && (optimize_size || (int)ix86_cpu < (int)PROCESSOR_PENTIUMPRO)
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
       && ! INSN_DELETED_P (XEXP (link, 0))
@@ -1043,7 +1145,8 @@
     return AS1 (inc%W0,%0);
 
   return AS2 (mov%W0,%1,%0);
-}")
+}"
+  [(set_attr "type" "integer,memory")])
 
 ;; emit_push_insn when it calls move_by_pieces
 ;; requires an insn to "push a byte".
@@ -1078,7 +1181,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1093,10 +1196,12 @@
   "*
 {
   rtx link;
-  if (operands[1] == const0_rtx && REG_P (operands[0]))
-    return AS2 (xor%L0,%k0,%k0);
+
+  /* movb $0,reg8 is 2 bytes, the same as xorl reg8,reg8.
+     It is at least as fast as xor on any processor except a Pentium. */
 
   if (operands[1] == const1_rtx
+      && TARGET_PENTIUM
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
       && ! INSN_DELETED_P (XEXP (link, 0))
@@ -1138,7 +1243,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1153,10 +1258,11 @@
   "*
 {
   rtx link;
-  if (operands[1] == const0_rtx && REG_P (operands[0]))
-    return AS2 (xor%B0,%0,%0);
+
+  /* movb $0,reg8 is 2 bytes, the same as xorl reg8,reg8.  */
 
   if (operands[1] == const1_rtx
+      && TARGET_PENTIUM
       && ! NON_QI_REG_P (operands[0])
       && (link = find_reg_note (insn, REG_WAS_0, 0))
       /* Make sure the insn that stored the 0 is still present.  */
@@ -1182,7 +1288,8 @@
 (define_insn "movsf_push"
   [(set (match_operand:SF 0 "push_operand" "=<,<")
 	(match_operand:SF 1 "general_operand" "*rfF,m"))]
-  "GET_CODE (operands[1]) != MEM || reload_in_progress || reload_completed"
+  "TARGET_PUSH_MEMORY || GET_CODE (operands[1]) != MEM 
+   || reload_in_progress || reload_completed"
   "*
 {
   if (STACK_REG_P (operands[1]))
@@ -1209,11 +1316,15 @@
   return AS1 (push%L0,%1);
 }")
 
-(define_insn "movsf_push_memory"
-  [(set (match_operand:SF 0 "push_operand" "=<")
-	(match_operand:SF 1 "memory_operand" "m"))]
-  "TARGET_PUSH_MEMORY"
-  "* return AS1 (push%L0,%1);")
+(define_split
+  [(set (match_operand:SF 0 "push_operand" "")
+        (match_operand:SF 1 "general_operand" ""))]
+  "reload_completed && STACK_REG_P (operands[1])"
+  [(set (reg:SI 7)
+        (minus:SI (reg:SI 7) (const_int 4)))
+   (set (mem:SF (reg:SI 7))
+        (match_dup 1))]
+  "")
 
 (define_expand "movsf"
   [(set (match_operand:SF 0 "general_operand" "")
@@ -1223,7 +1334,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1231,34 +1342,21 @@
     }
 
   /* If we are loading a floating point constant that isn't 0 or 1
-     into a register, indicate we need the pic register loaded.  This could
-     be optimized into stores of constants if the target eventually moves
-     to memory, but better safe than sorry.  */
+     into a register, force the value to memory now, since we'll 
+     get better code out the back end.  */
   else if ((reload_in_progress | reload_completed) == 0
-      && GET_CODE (operands[0]) != MEM
-      && GET_CODE (operands[1]) == CONST_DOUBLE
-      && !standard_80387_constant_p (operands[1]))
+	   && GET_CODE (operands[0]) != MEM
+	   && GET_CODE (operands[1]) == CONST_DOUBLE
+	   && !standard_80387_constant_p (operands[1]))
     {
-      rtx insn, note, fp_const;
-
-      fp_const = force_const_mem (SFmode, operands[1]);
-      if (flag_pic)
-	current_function_uses_pic_offset_table = 1;
-
-      insn = emit_insn (gen_rtx_SET (SFmode, operands[0], fp_const));
-      note = find_reg_note (insn, REG_EQUAL, NULL_RTX);
-
-      if (note)
-	XEXP (note, 0) = operands[1];
-      else
-	REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, operands[1], REG_NOTES (insn));
+      operands[1] = validize_mem (force_const_mem (SFmode, operands[1]));
     }
 }")
 
 ;; For the purposes of regclass, prefer FLOAT_REGS.
 (define_insn ""
-  [(set (match_operand:SF 0 "nonimmediate_operand" "=*rfm,*rf,f,!*rm")
-	(match_operand:SF 1 "general_operand" "*rf,*rfm,fG,fF"))]
+  [(set (match_operand:SF 0 "nonimmediate_operand" "=f,m,!*r,!m")
+	(match_operand:SF 1 "general_operand" "fmG,f,*rmF,*rF"))]
   "(!TARGET_MOVE || GET_CODE (operands[0]) != MEM) || (GET_CODE (operands[1]) != MEM)"
   "*
 {
@@ -1274,20 +1372,6 @@
         return AS1 (fld,%y0);
     }
 
-  /* Handle a transfer between the 387 and a 386 register */
-
-  if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
-
-  if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
-
   /* Handle other kinds of writes from the 387 */
 
   if (STACK_TOP_P (operands[1]))
@@ -1327,10 +1411,12 @@
     return AS1 (fxch,%0);
 }")
 
+
 (define_insn "movdf_push"
   [(set (match_operand:DF 0 "push_operand" "=<,<")
 	(match_operand:DF 1 "general_operand" "*rfF,o"))]
-  "GET_CODE (operands[1]) != MEM || reload_in_progress || reload_completed"
+  "TARGET_PUSH_MEMORY || GET_CODE (operands[1]) != MEM 
+   || reload_in_progress || reload_completed"
   "*
 {
   if (STACK_REG_P (operands[1]))
@@ -1357,11 +1443,15 @@
   return output_move_double (operands);
 }")
 
-(define_insn "movdf_push_memory"
-  [(set (match_operand:DF 0 "push_operand" "=<")
-	(match_operand:DF 1 "memory_operand" "o"))]
-  "TARGET_PUSH_MEMORY"
-  "* return output_move_pushmem (operands, insn, GET_MODE_SIZE (DFmode),0,0);")
+(define_split
+  [(set (match_operand:DF 0 "push_operand" "")
+        (match_operand:DF 1 "register_operand" ""))]
+  "reload_completed && STACK_REG_P (operands[1])"
+  [(set (reg:SI 7)
+        (minus:SI (reg:SI 7) (const_int 8)))
+   (set (mem:DF (reg:SI 7))
+        (match_dup 1))]
+  "")
 
 (define_expand "movdf"
   [(set (match_operand:DF 0 "general_operand" "")
@@ -1371,7 +1461,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1383,30 +1473,18 @@
      optimized into stores of constants if the target eventually moves to
      memory, but better safe than sorry.  */
   else if ((reload_in_progress | reload_completed) == 0
-      && GET_CODE (operands[0]) != MEM
-      && GET_CODE (operands[1]) == CONST_DOUBLE
-      && !standard_80387_constant_p (operands[1]))
+	   && GET_CODE (operands[0]) != MEM
+	   && GET_CODE (operands[1]) == CONST_DOUBLE
+	   && !standard_80387_constant_p (operands[1]))
     {
-      rtx insn, note, fp_const;
-
-      fp_const = force_const_mem (DFmode, operands[1]);
-      if (flag_pic)
-	current_function_uses_pic_offset_table = 1;
-
-      insn = emit_insn (gen_rtx_SET (DFmode, operands[0], fp_const));
-      note = find_reg_note (insn, REG_EQUAL, NULL_RTX);
-
-      if (note)
-	XEXP (note, 0) = operands[1];
-      else
-	REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, operands[1], REG_NOTES (insn));
+      operands[1] = validize_mem (force_const_mem (DFmode, operands[1]));
     }
 }")
 
 ;; For the purposes of regclass, prefer FLOAT_REGS.
 (define_insn ""
-  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,fm,!*rf,!*rm")
-	(match_operand:DF 1 "general_operand" "fmG,f,*rfm,*rfF"))]
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,m,!*r,!o")
+	(match_operand:DF 1 "general_operand" "fmG,f,*roF,*rF"))]
   "(!TARGET_MOVE || GET_CODE (operands[0]) != MEM)
    || (GET_CODE (operands[1]) != MEM)"
   "*
@@ -1423,20 +1501,6 @@
         return AS1 (fld,%y0);
     }
 
-  /* Handle a transfer between the 387 and a 386 register */
-
-  if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
-
-  if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
-
   /* Handle other kinds of writes from the 387 */
 
   if (STACK_TOP_P (operands[1]))
@@ -1480,7 +1544,8 @@
 (define_insn "movxf_push"
   [(set (match_operand:XF 0 "push_operand" "=<,<")
  	(match_operand:XF 1 "general_operand" "*rfF,o"))]
-  "GET_CODE (operands[1]) != MEM || reload_in_progress || reload_completed"
+  "TARGET_PUSH_MEMORY || GET_CODE (operands[1]) != MEM 
+   || reload_in_progress || reload_completed"
   "*
 {
   if (STACK_REG_P (operands[1]))
@@ -1506,11 +1571,15 @@
   return output_move_double (operands);
  }")
 
-(define_insn "movxf_push_memory"
-  [(set (match_operand:XF 0 "push_operand" "=<")
- 	(match_operand:XF 1 "memory_operand" "o"))]
-  "TARGET_PUSH_MEMORY"
-  "* return output_move_pushmem (operands, insn, GET_MODE_SIZE (XFmode),0,0);")
+(define_split
+  [(set (match_operand:XF 0 "push_operand" "")
+        (match_operand:XF 1 "register_operand" ""))]
+  "reload_completed && STACK_REG_P (operands[1])"
+  [(set (reg:SI 7)
+        (minus:SI (reg:SI 7) (const_int 12)))
+   (set (mem:XF (reg:SI 7))
+        (match_dup 1))]
+  "")
 
 (define_expand "movxf"
   [(set (match_operand:XF 0 "general_operand" "")
@@ -1520,7 +1589,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1532,30 +1601,18 @@
      be optimized into stores of constants if the target eventually moves
      to memory, but better safe than sorry.  */
   else if ((reload_in_progress | reload_completed) == 0
-      && GET_CODE (operands[0]) != MEM
-      && GET_CODE (operands[1]) == CONST_DOUBLE
-      && !standard_80387_constant_p (operands[1]))
+	   && GET_CODE (operands[0]) != MEM
+	   && GET_CODE (operands[1]) == CONST_DOUBLE
+	   && !standard_80387_constant_p (operands[1]))
     {
-      rtx insn, note, fp_const;
-
-      fp_const = force_const_mem (XFmode, operands[1]);
-      if (flag_pic)
-	current_function_uses_pic_offset_table = 1;
-
-      insn = emit_insn (gen_rtx_SET (XFmode, operands[0], fp_const));
-      note = find_reg_note (insn, REG_EQUAL, NULL_RTX);
-
-      if (note)
-	XEXP (note, 0) = operands[1];
-      else
-	REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, operands[1], REG_NOTES (insn));
+      operands[1] = validize_mem (force_const_mem (XFmode, operands[1]));
     }
 }")
 
 
 (define_insn ""
-  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,fm,!*rf,!*rm")
-	(match_operand:XF 1 "general_operand" "fmG,f,*rfm,*rfF"))]
+  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m,!*r,!o")
+	(match_operand:XF 1 "general_operand" "fmG,f,*roF,*rF"))]
   "(!TARGET_MOVE || GET_CODE (operands[0]) != MEM)
    || (GET_CODE (operands[1]) != MEM)"
   "*
@@ -1572,20 +1629,6 @@
         return AS1 (fld,%y0);
     }
 
-  /* Handle a transfer between the 387 and a 386 register */
-
-  if (STACK_TOP_P (operands[0]) && NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
-
-  if (STACK_TOP_P (operands[1]) && NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
-
   /* Handle other kinds of writes from the 387 */
 
   if (STACK_TOP_P (operands[1]))
@@ -1644,7 +1687,7 @@
 {
   /* Don't generate memory->memory moves, go through a register */
   if (TARGET_MOVE
-      && (reload_in_progress | reload_completed) == 0
+      && no_new_pseudos == 0
       && GET_CODE (operands[0]) == MEM
       && GET_CODE (operands[1]) == MEM)
     {
@@ -1657,8 +1700,44 @@
 	(match_operand:DI 1 "general_operand" "riF,m"))]
   "(!TARGET_MOVE || GET_CODE (operands[0]) != MEM)
    || (GET_CODE (operands[1]) != MEM)"
-  "* return output_move_double (operands);")
+  "* return output_move_double (operands);"
+  [(set_attr "type" "integer,memory")
+   (set_attr "memory" "*,load")])
+
+(define_split
+  [(set (match_operand:DI 0 "nonimmediate_operand" "")
+	(match_operand:DI 1 "general_operand" ""))]
+  "reload_completed
+   && (offsettable_memref_p (operands[0])
+       || nonmemory_operand (operands[0], DImode))
+   && (offsettable_memref_p (operands[1])
+       || nonmemory_operand (operands[1], DImode))
+   && (! reg_overlap_mentioned_p (gen_lowpart (SImode, operands[0]),
+				  operands[1])
+       || ! reg_overlap_mentioned_p (gen_highpart (SImode, operands[0]),
+				     operands[1]))"
+  [(set (match_dup 2)
+	(match_dup 4))
+   (set (match_dup 3)
+	(match_dup 5))]
+  "
+{
+  split_di (&operands[0], 1, &operands[2], &operands[3]);
+  split_di (&operands[1], 1, &operands[4], &operands[5]);
+
+  if (reg_overlap_mentioned_p (operands[2], operands[1]))
+    {
+    rtx tmp;
+
+    tmp = operands[2];
+    operands[2] = operands[3];
+    operands[3] = tmp;
 
+    tmp = operands[4];
+    operands[4] = operands[5];
+    operands[5] = tmp;
+    }
+}")
 
 ;;- conversion instructions
 ;;- NONE
@@ -1666,10 +1745,25 @@
 ;;- zero extension instructions
 ;; See comments by `andsi' for when andl is faster than movzx.
 
-(define_insn "zero_extendhisi2"
+(define_expand "zero_extendhisi2"
+  [(set (match_operand:SI 0 "register_operand" "")
+	(zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "")))]
+  ""
+  "")
+
+;; When optimizing for the PPro/PII or code size, always use movzwl.
+;; We want to use a different pattern so we can use different constraints
+;; than the generic pattern.
+(define_insn ""
+  [(set (match_operand:SI 0 "register_operand" "=r")
+	(zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "rm")))]
+  "(optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO)"
+  "* return AS2 (movz%W0%L0,%1,%0);")
+
+(define_insn ""
   [(set (match_operand:SI 0 "register_operand" "=r,&r,?r")
 	(zero_extend:SI (match_operand:HI 1 "nonimmediate_operand" "0,rm,rm")))]
-  ""
+  "! (optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO)"
   "*
   {
   rtx xops[2];
@@ -1730,10 +1824,23 @@
 	       (const_int 65535)))]
   "operands[2] = gen_rtx_REG (HImode, true_regnum (operands[0]));")
 
-(define_insn "zero_extendqihi2"
+(define_expand "zero_extendqihi2"
+  [(set (match_operand:HI 0 "register_operand" "")
+	(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "")))]
+  ""
+  "")
+
+(define_insn ""
+  [(set (match_operand:HI 0 "register_operand" "=r")
+	(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "qm")))]
+  "optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO"
+
+  "*  return AS2 (movz%B0%W0,%1,%0);")
+
+(define_insn ""
   [(set (match_operand:HI 0 "register_operand" "=q,&q,?r")
 	(zero_extend:HI (match_operand:QI 1 "nonimmediate_operand" "0,qm,qm")))]
-  ""
+  "! (optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO)"
   "*
   {
   rtx xops[2];
@@ -1811,10 +1918,22 @@
     FAIL;
   operands[2] = gen_rtx_REG (HImode, REGNO (operands[1]));")
 
-(define_insn "zero_extendqisi2"
+(define_expand "zero_extendqisi2"
+  [(set (match_operand:SI 0 "register_operand" "")
+	(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "")))]
+  ""
+  "")
+
+(define_insn ""
+  [(set (match_operand:SI 0 "register_operand" "=r")
+	(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "qm")))]
+  "optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO"
+  "* return AS2 (movz%B0%L0,%1,%0);")
+
+(define_insn ""
   [(set (match_operand:SI 0 "register_operand" "=q,&q,?r")
 	(zero_extend:SI (match_operand:QI 1 "nonimmediate_operand" "0,qm,qm")))]
-  ""
+  "! (optimize_size || (int)ix86_cpu == (int)PROCESSOR_PENTIUMPRO)"
   "*
   {
   rtx xops[2];
@@ -1899,58 +2018,105 @@
  "operands[2] = gen_rtx_REG (SImode, true_regnum (operands[1]));")
 
 (define_insn "zero_extendsidi2"
-  [(set (match_operand:DI 0 "nonimmediate_operand" "=r,?r,?m")
-	(zero_extend:DI (match_operand:SI 1 "register_operand" "0,rm,r")))]
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=r,?r,?*o")
+	(zero_extend:DI (match_operand:SI 1 "general_operand" "0,rm,r")))]
   ""
-  "*
-  {
-  rtx high[2], low[2], xops[4];
-
-  if (REG_P (operands[0]) && REG_P (operands[1])
-      && REGNO (operands[0]) == REGNO (operands[1]))
-    {
-      operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1);
-      return AS2 (xor%L0,%0,%0);
-    }
-
-  split_di (operands, 1, low, high);
-  xops[0] = low[0];
-  xops[1] = operands[1];
-  xops[2] = high[0];
-  xops[3] = const0_rtx;
-
-  output_asm_insn (AS2 (mov%L0,%1,%0), xops);
-  if (GET_CODE (low[0]) == MEM)
-    output_asm_insn (AS2 (mov%L2,%3,%2), xops);
-  else
-    output_asm_insn (AS2 (xor%L2,%2,%2), xops);
+  "#")
 
-  RET;
-}")
+(define_split 
+  [(set (match_operand:DI 0 "register_operand" "")
+	(zero_extend:DI (match_operand:SI 1 "register_operand" "")))]
+  "reload_completed && true_regnum (operands[0]) == true_regnum (operands[1])"
+  [(set (match_dup 4) (const_int 0))]
+  "split_di (&operands[0], 1, &operands[3], &operands[4]);")
+
+(define_split 
+  [(set (match_operand:DI 0 "nonimmediate_operand" "")
+	(zero_extend:DI (match_operand:SI 1 "general_operand" "")))]
+  "reload_completed"
+  [(set (match_dup 3) (match_dup 1))
+   (set (match_dup 4) (const_int 0))]
+  "split_di (&operands[0], 1, &operands[3], &operands[4]);")
 
 ;;- sign extension instructions
 
 (define_insn "extendsidi2"
-  [(set (match_operand:DI 0 "register_operand" "=r")
-	(sign_extend:DI (match_operand:SI 1 "register_operand" "0")))]
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=A,?r,?Ar,*o")
+	(sign_extend:DI (match_operand:SI 1 "register_operand" "0,0,r,*r")))
+   (clobber (match_scratch:SI 2 "=X,X,X,&r"))]
   ""
-  "*
+  "#")
+
+;; Extend to memory case when source register does die.
+(define_split 
+  [(set (match_operand:DI 0 "memory_operand" "")
+	(sign_extend:DI (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_operand:SI 2 "register_operand" ""))]
+  "(flow2_completed
+    && dead_or_set_p (insn, operands[1])
+    && !reg_mentioned_p (operands[1], operands[0]))"
+  [(set (match_dup 3) (match_dup 1))
+   (set (match_dup 1) (ashiftrt:SI (match_dup 1) (const_int 31)))
+   (set (match_dup 4) (match_dup 1))]
+  "split_di (&operands[0], 1, &operands[3], &operands[4]);")
+
+;; Extend to memory case when source register does not die.
+(define_split 
+  [(set (match_operand:DI 0 "memory_operand" "")
+	(sign_extend:DI (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_operand:SI 2 "register_operand" ""))]
+  "flow2_completed"
+  [(const_int 0)]
+  "
+{
+  split_di (&operands[0], 1, &operands[3], &operands[4]);
+
+  emit_move_insn (operands[3], operands[1]);
+
+  /* Generate a cltd if possible and doing so it profitable.  */
+  if (true_regnum (operands[1]) == 0
+      && true_regnum (operands[2]) == 1
+      && (optimize_size || !TARGET_PENTIUM))
+    {
+      emit_insn (gen_ashrsi3_31 (operands[2], operands[1]));
+    }
+  else
+    {
+      emit_move_insn (operands[2], operands[1]);
+      emit_insn (gen_ashrsi3_31 (operands[2], operands[2]));
+    }
+  emit_move_insn (operands[4], operands[2]);
+  DONE;
+}")
+
+;; Extend to register case.  Optimize case where source and destination
+;; registers match and cases where we can use cltd.
+(define_split 
+  [(set (match_operand:DI 0 "register_operand" "")
+	(sign_extend:DI (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_scratch:SI 2 ""))]
+  "reload_completed"
+  [(const_int 0)]
+  "
 {
-  if (REGNO (operands[0]) == 0)
+  split_di (&operands[0], 1, &operands[3], &operands[4]);
+
+  if (true_regnum (operands[3]) != true_regnum (operands[1]))
+    emit_move_insn (operands[3], operands[1]);
+
+  /* Generate a cltd if possible and doing so it profitable.  */
+  if (true_regnum (operands[3]) == 0
+      && (optimize_size || !TARGET_PENTIUM))
     {
-      /* This used to be cwtl, but that extends HI to SI somehow.  */
-#ifdef INTEL_SYNTAX
-      return \"cdq\";
-#else
-      return \"cltd\";
-#endif
+      emit_insn (gen_ashrsi3_31 (operands[4], operands[3]));
+      DONE;
     }
 
-  operands[1] = gen_rtx_REG (SImode, REGNO (operands[0]) + 1);
-  output_asm_insn (AS2 (mov%L0,%0,%1), operands);
+  if (true_regnum (operands[4]) != true_regnum (operands[1]))
+    emit_move_insn (operands[4], operands[1]);
 
-  operands[0] = GEN_INT (31);
-  return AS2 (sar%L1,%0,%1);
+  emit_insn (gen_ashrsi3_31 (operands[4], operands[4]));
+  DONE;
 }")
 
 ;; Note that the i386 programmers' manual says that the opcodes
@@ -1964,7 +2130,8 @@
   "*
 {
   if (REGNO (operands[0]) == 0
-      && REG_P (operands[1]) && REGNO (operands[1]) == 0)
+      && REG_P (operands[1]) && REGNO (operands[1]) == 0
+      && (optimize_size || ix86_cpu != PROCESSOR_K6))
 #ifdef INTEL_SYNTAX
     return \"cwde\";
 #else
@@ -1985,7 +2152,8 @@
   "*
 {
   if (REGNO (operands[0]) == 0
-      && REG_P (operands[1]) && REGNO (operands[1]) == 0)
+      && REG_P (operands[1]) && REGNO (operands[1]) == 0
+      && (optimize_size || ix86_cpu != PROCESSOR_K6))
     return \"cbtw\";
 
 #ifdef INTEL_SYNTAX
@@ -2069,110 +2237,237 @@
 
 ;; Conversions between float and double.
 
-(define_insn "extendsfdf2"
-  [(set (match_operand:DF 0 "nonimmediate_operand" "=fm,f")
-	(float_extend:DF
-	 (match_operand:SF 1 "nonimmediate_operand" "f,fm")))]
+(define_expand "extendsfdf2"
+  [(parallel [(set (match_operand:DF 0 "nonimmediate_operand" "")
+		   (float_extend:DF
+		     (match_operand:SF 1 "nonimmediate_operand" "")))
+     (clobber (match_dup 2))
+     (clobber (match_dup 3))])]
   "TARGET_80387"
+  "
+{
+  if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
+    operands[1] = force_reg (SFmode, operands[1]);
+
+  operands[2] = assign_386_stack_local (SFmode, 0);
+  operands[3] = assign_386_stack_local (DFmode, 0);
+}")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,m,!f,!*r")
+	(float_extend:DF
+	  (match_operand:SF 1 "nonimmediate_operand" "fm,f,*r,f")))
+   (clobber (match_operand:SF 2 "memory_operand" "m,m,m,m"))
+   (clobber (match_operand:DF 3 "memory_operand" "m,m,m,o"))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
   "*
 {
-  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
+  output_float_extend (insn, operands);
+  return \"\";
+}"
+  [(set_attr "type" "fld,fpop,fld,fpop")])
 
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float_extend:DF (match_operand:SF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:DF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[1])"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float_extend:DF (match_dup 2)))]
+  "")
 
-  if (NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float_extend:DF (match_operand:SF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:DF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[0])"
+  [(set (match_dup 3)
+	(float_extend:DF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 3))]
+  "")
 
-  if (STACK_TOP_P (operands[0]))
-    return AS1 (fld%z1,%y1);
+(define_split
+  [(set (match_operand:DF 0 "nonimmediate_operand" "")
+	(float_extend:DF (match_operand:SF 1 "nonimmediate_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:DF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_extend:DF (match_dup 1)))]
+  "")
 
-  if (GET_CODE (operands[0]) == MEM)
-    {
-      if (stack_top_dies)
-	return AS1 (fstp%z0,%y0);
-      else
-        return AS1 (fst%z0,%y0);
-    }
+(define_insn ""
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,m")
+	(float_extend:DF (match_operand:SF 1 "nonimmediate_operand" "fm,f")))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
+  "*
+{
+    output_float_extend (insn, operands);
+    return \"\";
+}"
+  [(set_attr "type" "fld,fpop")])
+
+(define_expand "extenddfxf2"
+  [(parallel [(set (match_operand:XF 0 "nonimmediate_operand" "")
+		   (float_extend:XF
+		     (match_operand:DF 1 "nonimmediate_operand" "")))
+     (clobber (match_dup 2))
+     (clobber (match_dup 3))])]
+  "TARGET_80387"
+  "
+{
+  if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
+    operands[1] = force_reg (DFmode, operands[1]);
 
-  abort ();
+  operands[2] = assign_386_stack_local (DFmode, 0);
+  operands[3] = assign_386_stack_local (XFmode, 0);
 }")
 
-(define_insn "extenddfxf2"
-  [(set (match_operand:XF 0 "nonimmediate_operand" "=fm,f,f,!*r")
+(define_insn ""
+  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m,!f,!*r")
 	(float_extend:XF
-	 (match_operand:DF 1 "nonimmediate_operand" "f,fm,!*r,f")))]
-  "TARGET_80387"
+	  (match_operand:DF 1 "nonimmediate_operand" "fm,f,*r,f")))
+   (clobber (match_operand:DF 2 "memory_operand" "m,m,o,m"))
+   (clobber (match_operand:XF 3 "memory_operand" "m,m,m,o"))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
   "*
 {
-  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
+    output_float_extend (insn, operands);
+    return \"\";
+}"
+  [(set_attr "type" "fld,fpop,fld,fpop")])
 
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (clobber (match_operand:DF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[1])"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float_extend:XF (match_dup 2)))]
+  "")
 
-  if (NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float_extend:XF (match_operand:DF 1 "register_operand" "")))
+   (clobber (match_operand:DF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[0])"
+  [(set (match_dup 3)
+	(float_extend:XF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 3))]
+  "")
 
-  if (STACK_TOP_P (operands[0]))
-    return AS1 (fld%z1,%y1);
+(define_split
+  [(set (match_operand:XF 0 "nonimmediate_operand" "")
+	(float_extend:XF (match_operand:DF 1 "nonimmediate_operand" "")))
+   (clobber (match_operand:DF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_extend:XF (match_dup 1)))]
+  "")
 
-  if (GET_CODE (operands[0]) == MEM)
-    {
-      output_asm_insn (AS1 (fstp%z0,%y0), operands);
-      if (! stack_top_dies)
-	return AS1 (fld%z0,%y0);
-      RET;
-    }
+(define_insn ""
+  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m")
+	(float_extend:XF (match_operand:DF 1 "nonimmediate_operand" "fm,f")))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
+  "*
+{
+    output_float_extend (insn, operands);
+    return \"\";
+}"
+  [(set_attr "type" "fld,fpop")])
+
+(define_expand "extendsfxf2"
+  [(parallel [(set (match_operand:XF 0 "nonimmediate_operand" "")
+		   (float_extend:XF
+		     (match_operand:SF 1 "nonimmediate_operand" "")))
+     (clobber (match_dup 2))
+     (clobber (match_dup 3))])]
+  "TARGET_80387"
+  "
+{
+  if (GET_CODE (operands[0]) == MEM && GET_CODE (operands[1]) == MEM)
+    operands[1] = force_reg (SFmode, operands[1]);
 
-  abort ();
+  operands[2] = assign_386_stack_local (SFmode, 0);
+  operands[3] = assign_386_stack_local (XFmode, 0);
 }")
 
-(define_insn "extendsfxf2"
-  [(set (match_operand:XF 0 "nonimmediate_operand" "=fm,f,f,!*r")
+(define_insn ""
+  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m,!f,!*r")
 	(float_extend:XF
-	 (match_operand:SF 1 "nonimmediate_operand" "f,fm,!*r,f")))]
-  "TARGET_80387"
+	  (match_operand:SF 1 "nonimmediate_operand" "fm,f,*r,f")))
+   (clobber (match_operand:SF 2 "memory_operand" "m,m,m,m"))
+   (clobber (match_operand:XF 3 "memory_operand" "m,m,m,o"))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
   "*
 {
-  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
-
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fld%z0,%y1));
-      RET;
-    }
+    output_float_extend (insn, operands);
+    return \"\";
+}"
+  [(set_attr "type" "fld,fpop,fld,fpop")])
 
-  if (NON_STACK_REG_P (operands[0]))
-    {
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[1])"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float_extend:XF (match_dup 2)))]
+  "")
 
-  if (STACK_TOP_P (operands[0]))
-    return AS1 (fld%z1,%y1);
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float_extend:XF (match_operand:SF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed && NON_STACK_REG_P (operands[0])"
+  [(set (match_dup 3)
+	(float_extend:XF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 3))]
+  "")
 
-  if (GET_CODE (operands[0]) == MEM)
-    {
-      output_asm_insn (AS1 (fstp%z0,%y0), operands);
-      if (! stack_top_dies)
-	return AS1 (fld%z0,%y0);
-      RET;
-    }
+(define_split
+  [(set (match_operand:XF 0 "nonimmediate_operand" "")
+	(float_extend:XF (match_operand:SF 1 "nonimmediate_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))
+   (clobber (match_operand:XF 3 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_extend:XF (match_dup 1)))]
+  "")
 
-  abort ();
-}")
+(define_insn ""
+  [(set (match_operand:XF 0 "nonimmediate_operand" "=f,m")
+	(float_extend:XF
+	 (match_operand:SF 1 "nonimmediate_operand" "fm,f")))]
+  "TARGET_80387 && (GET_CODE (operands[0]) != MEM
+		    || GET_CODE (operands[1]) != MEM)"
+  "*
+{
+    output_float_extend (insn, operands);
+    return \"\";
+}"
+  [(set_attr "type" "fld,fpop")])
 
 (define_expand "truncdfsf2"
   [(parallel [(set (match_operand:SF 0 "nonimmediate_operand" "")
@@ -2185,480 +2480,764 @@
   operands[2] = (rtx) assign_386_stack_local (SFmode, 0);
 }")
 
-;; This cannot output into an f-reg because there is no way to be sure
-;; of truncating in that case.  Otherwise this is just like a simple move
-;; insn.  So we pretend we can output to a reg in order to get better
-;; register preferencing, but we really use a stack slot.
-
 (define_insn ""
-  [(set (match_operand:SF 0 "nonimmediate_operand" "=f,m")
+  [(set (match_operand:SF 0 "nonimmediate_operand" "=f,m,!*r")
 	(float_truncate:SF
-	 (match_operand:DF 1 "register_operand" "0,f")))
-   (clobber (match_operand:SF 2 "memory_operand" "m,m"))]
+	  (match_operand:DF 1 "register_operand" "0,f,f")))
+   (clobber (match_operand:SF 2 "memory_operand" "m,m,m"))]
   "TARGET_80387"
   "*
 {
   int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
+  rtx xops[1];
 
-  if (GET_CODE (operands[0]) == MEM)
-    {
-      if (stack_top_dies)
-	return AS1 (fstp%z0,%0);
-      else
-        return AS1 (fst%z0,%0);
-    }
-  else if (STACK_TOP_P (operands[0]))
-    {
-      output_asm_insn (AS1 (fstp%z2,%y2), operands);
-      return AS1 (fld%z2,%y2);
-    }
+  xops[0] = GET_CODE (operands[0]) == MEM ? operands[0] : operands[2];
+
+  if (stack_top_dies || STACK_REG_P (operands[0]))
+    output_asm_insn (AS1 (fstp%z0,%0), xops);
   else
-    abort ();
-}")
+    output_asm_insn (AS1 (fst%z0,%0), xops);
 
-(define_insn "truncxfsf2"
-  [(set (match_operand:SF 0 "nonimmediate_operand" "=m,!*r")
-	(float_truncate:SF
-	 (match_operand:XF 1 "register_operand" "f,f")))]
+  if (STACK_REG_P (operands[0]))
+    return AS1 (fld%z2,%2);
+  else if (NON_STACK_REG_P (operands[0]))
+    return AS2 (mov%L0,%2,%0);
+
+  return \"\";
+}"
+  [(set_attr "type" "fpop")])
+
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_operand:DF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(float_truncate:SF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 2))]
+  "")
+
+(define_split
+  [(set (match_operand:SF 0 "memory_operand" "")
+	(float_truncate:SF (match_operand:DF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_truncate:SF (match_dup 1)))]
+  "")
+
+;; This cannot output into an f-reg because there is no way to be sure
+;; of truncating in that case.
+
+(define_insn ""
+  [(set (match_operand:SF 0 "memory_operand" "=m")
+	(float_truncate:SF (match_operand:DF 1 "register_operand" "f")))]
   "TARGET_80387"
   "*
 {
   int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
 
-  if (NON_STACK_REG_P (operands[0]))
-    {
-      if (stack_top_dies == 0)
-	{
-	  output_asm_insn (AS1 (fld,%y1), operands);
-	  stack_top_dies = 1;
-	}
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
-  else if (GET_CODE (operands[0]) == MEM)
-    {
-      if (stack_top_dies)
-	return AS1 (fstp%z0,%0);
-      else
-	{
-	  output_asm_insn (AS1 (fld,%y1), operands);
-	  return AS1 (fstp%z0,%0);
-	}
-    }
+  if (stack_top_dies)
+    return AS1 (fstp%z0,%0);
   else
-    abort ();
+    return AS1 (fst%z0,%0);
+}"
+  [(set_attr "type" "fpop")])
+
+(define_expand "truncxfsf2"
+  [(parallel [(set (match_operand:SF 0 "nonimmediate_operand" "")
+		   (float_truncate:SF
+		    (match_operand:XF 1 "register_operand" "")))
+	      (clobber (match_dup 2))])]
+  "TARGET_80387"
+  "
+{
+  operands[2] = (rtx) assign_386_stack_local (SFmode, 0);
 }")
 
-(define_insn "truncxfdf2"
-  [(set (match_operand:DF 0 "nonimmediate_operand" "=m,!*r")
-	(float_truncate:DF
-	 (match_operand:XF 1 "register_operand" "f,f")))]
+(define_insn ""
+  [(set (match_operand:SF 0 "nonimmediate_operand" "=f,m,!*r")
+	(float_truncate:SF
+	  (match_operand:XF 1 "register_operand" "0,f,f")))
+   (clobber (match_operand:SF 2 "memory_operand" "m,m,m"))]
   "TARGET_80387"
   "*
 {
   int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
+  rtx xops[1];
 
-  if (NON_STACK_REG_P (operands[0]))
-    {
-      if (stack_top_dies == 0)
-	{
-	  output_asm_insn (AS1 (fld,%y1), operands);
-	  stack_top_dies = 1;
-	}
-      output_to_reg (operands[0], stack_top_dies, 0);
-      RET;
-    }
-  else if (GET_CODE (operands[0]) == MEM)
-    {
-      if (stack_top_dies)
-	return AS1 (fstp%z0,%0);
-      else
-	{
-	  output_asm_insn (AS1 (fld,%y1), operands);
-	  return AS1 (fstp%z0,%0);
-	}
-    }
+  xops[0] = GET_CODE (operands[0]) == MEM ? operands[0] : operands[2];
+
+  if (stack_top_dies || STACK_REG_P (operands[0]))
+    output_asm_insn (AS1 (fstp%z0,%0), xops);
   else
-    abort ();
-}")
+    output_asm_insn (AS1 (fst%z0,%0), xops);
 
-
-;; The 387 requires that the stack top dies after converting to DImode.
+  if (STACK_REG_P (operands[0]))
+    return AS1 (fld%z2,%2);
+  else if (NON_STACK_REG_P (operands[0]))
+    return AS2 (mov%L0,%2,%0);
 
-;; Represent an unsigned conversion from SImode to MODE_FLOAT by first
-;; doing a signed conversion to DImode, and then taking just the low
-;; part.
+  return \"\";
+}"
+  [(set_attr "type" "fpop")])
 
-(define_expand "fixuns_truncxfsi2"
-  [(set (match_dup 4)
-	(match_operand:XF 1 "register_operand" ""))
-   (parallel [(set (match_dup 2)
-		   (fix:DI (fix:XF (match_dup 4))))
-	      (clobber (match_dup 4))
-	      (clobber (match_dup 5))
-	      (clobber (match_dup 6))
-	      (clobber (match_scratch:SI 7 ""))])
-   (set (match_operand:SI 0 "general_operand" "")
-	(match_dup 3))]
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float_truncate:SF (match_operand:XF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(float_truncate:SF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 2))]
+  "")
+
+(define_split
+  [(set (match_operand:SF 0 "memory_operand" "")
+	(float_truncate:SF (match_operand:XF 1 "register_operand" "")))
+   (clobber (match_operand:SF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_truncate:SF (match_dup 1)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:SF 0 "memory_operand" "=m")
+	(float_truncate:SF (match_operand:XF 1 "register_operand" "f")))]
   "TARGET_80387"
-  "
+  "*
 {
-  operands[2] = gen_reg_rtx (DImode);
-  operands[3] = gen_lowpart (SImode, operands[2]);
-  operands[4] = gen_reg_rtx (XFmode);
-  operands[5] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[6] = (rtx) assign_386_stack_local (DImode, 1);
-}")
+  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
 
-(define_expand "fixuns_truncdfsi2"
-  [(set (match_dup 4)
-	(match_operand:DF 1 "register_operand" ""))
-   (parallel [(set (match_dup 2)
-		   (fix:DI (fix:DF (match_dup 4))))
-	      (clobber (match_dup 4))
-	      (clobber (match_dup 5))
-	      (clobber (match_dup 6))
-	      (clobber (match_scratch:SI 7 ""))])
-   (set (match_operand:SI 0 "general_operand" "")
-	(match_dup 3))]
+  if (stack_top_dies)
+    return AS1 (fstp%z0,%0);
+  else
+    return AS1 (fst%z0,%0);
+}"
+  [(set_attr "type" "fpop")])
+
+(define_expand "truncxfdf2"
+  [(parallel [(set (match_operand:DF 0 "nonimmediate_operand" "")
+		   (float_truncate:DF
+		    (match_operand:XF 1 "register_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
   "
 {
-  operands[2] = gen_reg_rtx (DImode);
-  operands[3] = gen_lowpart (SImode, operands[2]);
-  operands[4] = gen_reg_rtx (DFmode);
-  operands[5] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[6] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[2] = (rtx) assign_386_stack_local (DFmode, 0);
 }")
 
-(define_expand "fixuns_truncsfsi2"
-  [(set (match_dup 4)
-	(match_operand:SF 1 "register_operand" ""))
-   (parallel [(set (match_dup 2)
-		   (fix:DI (fix:SF (match_dup 4))))
-	      (clobber (match_dup 4))
-	      (clobber (match_dup 5))
-	      (clobber (match_dup 6))
-	      (clobber (match_scratch:SI 7 ""))])
-   (set (match_operand:SI 0 "general_operand" "")
-	(match_dup 3))]
+(define_insn ""
+  [(set (match_operand:DF 0 "nonimmediate_operand" "=f,m,!*r")
+	(float_truncate:DF
+	  (match_operand:XF 1 "register_operand" "0,f,f")))
+   (clobber (match_operand:DF 2 "memory_operand" "m,m,o"))]
   "TARGET_80387"
-  "
+  "*
 {
-  operands[2] = gen_reg_rtx (DImode);
-  operands[3] = gen_lowpart (SImode, operands[2]);
-  operands[4] = gen_reg_rtx (SFmode);
-  operands[5] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[6] = (rtx) assign_386_stack_local (DImode, 1);
-}")
+  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
+  rtx xops[2];
 
-;; Signed conversion to DImode.
+  xops[0] = GET_CODE (operands[0]) == MEM ? operands[0] : operands[2];
 
-(define_expand "fix_truncxfdi2"
+  if (stack_top_dies || STACK_REG_P (operands[0]))
+    output_asm_insn (AS1 (fstp%z0,%0), xops);
+  else
+    output_asm_insn (AS1 (fst%z0,%0), xops);
+
+  if (STACK_REG_P (operands[0]))
+    return AS1 (fld%z2,%2);
+  else if (NON_STACK_REG_P (operands[0]))
+    {
+    xops[0] = operands[0];
+    xops[1] = operands[2];
+    output_asm_insn (output_move_double (xops), xops);
+    }
+
+  return \"\";
+}"
+  [(set_attr "type" "fpop")])
+
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float_truncate:DF (match_operand:XF 1 "register_operand" "")))
+   (clobber (match_operand:DF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
   [(set (match_dup 2)
-	(match_operand:XF 1 "register_operand" ""))
-   (parallel [(set (match_operand:DI 0 "general_operand" "")
-		   (fix:DI (fix:XF (match_dup 2))))
-	      (clobber (match_dup 2))
-	      (clobber (match_dup 3))
-	      (clobber (match_dup 4))
-	      (clobber (match_scratch:SI 5 ""))])]
+	(float_truncate:DF (match_dup 1)))
+   (set (match_dup 0)
+	(match_dup 2))]
+  "")
+
+(define_split
+  [(set (match_operand:DF 0 "memory_operand" "")
+	(float_truncate:DF (match_operand:XF 1 "register_operand" "")))
+   (clobber (match_operand:DF 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float_truncate:DF (match_dup 1)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "memory_operand" "=m")
+	(float_truncate:DF (match_operand:XF 1 "register_operand" "f")))]
   "TARGET_80387"
-  "
+  "*
 {
-  operands[1] = copy_to_mode_reg (XFmode, operands[1]);
-  operands[2] = gen_reg_rtx (XFmode);
-  operands[3] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[4] = (rtx) assign_386_stack_local (DImode, 1);
-}")
+  int stack_top_dies = find_regno_note (insn, REG_DEAD, FIRST_STACK_REG) != 0;
 
-(define_expand "fix_truncdfdi2"
-  [(set (match_dup 2)
-	(match_operand:DF 1 "register_operand" ""))
-   (parallel [(set (match_operand:DI 0 "general_operand" "")
-		   (fix:DI (fix:DF (match_dup 2))))
+  if (stack_top_dies)
+    return AS1 (fstp%z0,%0);
+  else
+    return AS1 (fst%z0,%0);
+}"
+  [(set_attr "type" "fpop")])
+
+;; Conversions between floating point and fix point.
+
+(define_expand "fix_truncsfsi2"
+  [(parallel [(set (match_operand:SI 0 "nonimmediate_operand" "")
+		   (fix:SI (fix:SF (match_operand:SF 1 "register_operand" ""))))
 	      (clobber (match_dup 2))
 	      (clobber (match_dup 3))
 	      (clobber (match_dup 4))
-	      (clobber (match_scratch:SI 5 ""))])]
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
   "
 {
-  operands[1] = copy_to_mode_reg (DFmode, operands[1]);
-  operands[2] = gen_reg_rtx (DFmode);
-  operands[3] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[4] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (SImode, 0);
 }")
 
+(define_insn ""
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=m,!r")
+	(fix:SI (fix:SF (match_operand:SF 1 "register_operand" "f,f"))))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:SI 4 "memory_operand" "m,m"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
+  "TARGET_80387"
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
+
 (define_expand "fix_truncsfdi2"
-  [(set (match_dup 2)
-	(match_operand:SF 1 "register_operand" ""))
-   (parallel [(set (match_operand:DI 0 "general_operand" "")
-		   (fix:DI (fix:SF (match_dup 2))))
+  [(parallel [(set (match_operand:DI 0 "nonimmediate_operand" "")
+		   (fix:DI (fix:SF (match_operand:SF 1 "register_operand" ""))))
+	      (clobber (match_dup 1))
 	      (clobber (match_dup 2))
 	      (clobber (match_dup 3))
 	      (clobber (match_dup 4))
-	      (clobber (match_scratch:SI 5 ""))])]
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
   "
 {
   operands[1] = copy_to_mode_reg (SFmode, operands[1]);
-  operands[2] = gen_reg_rtx (SFmode);
-  operands[3] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[4] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (DImode, 0);
 }")
 
-;; These match a signed conversion of either DFmode or SFmode to DImode.
-
 (define_insn ""
-  [(set (match_operand:DI 0 "nonimmediate_operand" "=rm")
-	(fix:DI (fix:XF (match_operand:XF 1 "register_operand" "+f"))))
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=m,!r")
+	(fix:DI (fix:SF (match_operand:SF 1 "register_operand" "f,f"))))
    (clobber (match_dup 1))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:DI 4 "memory_operand" "m,o"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
 
-(define_insn ""
-  [(set (match_operand:DI 0 "nonimmediate_operand" "=rm")
-	(fix:DI (fix:DF (match_operand:DF 1 "register_operand" "+f"))))
-   (clobber (match_dup 1))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+(define_expand "fix_truncdfsi2"
+  [(parallel [(set (match_operand:SI 0 "nonimmediate_operand" "")
+		   (fix:SI (fix:DF (match_operand:DF 1 "register_operand" ""))))
+	      (clobber (match_dup 2))
+	      (clobber (match_dup 3))
+	      (clobber (match_dup 4))
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
+  "
+{
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (SImode, 0);
+}")
 
 (define_insn ""
-  [(set (match_operand:DI 0 "nonimmediate_operand" "=rm")
-	(fix:DI (fix:SF (match_operand:SF 1 "register_operand" "+f"))))
-   (clobber (match_dup 1))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=m,!r")
+	(fix:SI (fix:DF (match_operand:DF 1 "register_operand" "f,f"))))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:SI 4 "memory_operand" "m,m"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
-
-;; Signed MODE_FLOAT conversion to SImode.
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
 
-(define_expand "fix_truncxfsi2"
-  [(parallel [(set (match_operand:SI 0 "general_operand" "")
-		   (fix:SI
-		    (fix:XF (match_operand:XF 1 "register_operand" ""))))
+(define_expand "fix_truncdfdi2"
+  [(parallel [(set (match_operand:DI 0 "nonimmediate_operand" "")
+		   (fix:DI (fix:DF (match_operand:DF 1 "register_operand" ""))))
+	      (clobber (match_dup 1))
 	      (clobber (match_dup 2))
 	      (clobber (match_dup 3))
-	      (clobber (match_scratch:SI 4 ""))])]
+	      (clobber (match_dup 4))
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
   "
 {
-  operands[2] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[3] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[1] = copy_to_mode_reg (DFmode, operands[1]);
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (DImode, 0);
 }")
 
-(define_expand "fix_truncdfsi2"
-  [(parallel [(set (match_operand:SI 0 "general_operand" "")
-		   (fix:SI
-		    (fix:DF (match_operand:DF 1 "register_operand" ""))))
+(define_insn ""
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=m,!r")
+	(fix:DI (fix:DF (match_operand:DF 1 "register_operand" "f,f"))))
+   (clobber (match_dup 1))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:DI 4 "memory_operand" "m,o"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
+  "TARGET_80387"
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "fix_truncxfsi2"
+  [(parallel [(set (match_operand:SI 0 "nonimmediate_operand" "")
+		   (fix:SI (fix:XF (match_operand:XF 1 "register_operand" ""))))
 	      (clobber (match_dup 2))
 	      (clobber (match_dup 3))
-	      (clobber (match_scratch:SI 4 ""))])]
+	      (clobber (match_dup 4))
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
   "
 {
-  operands[2] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[3] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (SImode, 0);
 }")
 
-(define_expand "fix_truncsfsi2"
-  [(parallel [(set (match_operand:SI 0 "general_operand" "")
-		   (fix:SI
-		    (fix:SF (match_operand:SF 1 "register_operand" ""))))
+(define_insn ""
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=m,!r")
+	(fix:SI (fix:XF (match_operand:XF 1 "register_operand" "f,f"))))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:SI 4 "memory_operand" "m,m"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
+  "TARGET_80387"
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "fix_truncxfdi2"
+  [(parallel [(set (match_operand:DI 0 "nonimmediate_operand" "")
+		   (fix:DI (fix:XF (match_operand:XF 1 "register_operand" ""))))
+	      (clobber (match_dup 1))
 	      (clobber (match_dup 2))
 	      (clobber (match_dup 3))
-	      (clobber (match_scratch:SI 4 ""))])]
+	      (clobber (match_dup 4))
+	      (clobber (match_scratch:HI 5 ""))])]
   "TARGET_80387"
   "
 {
-  operands[2] = (rtx) assign_386_stack_local (SImode, 0);
-  operands[3] = (rtx) assign_386_stack_local (DImode, 1);
+  operands[1] = copy_to_mode_reg (XFmode, operands[1]);
+  operands[2] = (rtx) assign_386_stack_local (HImode, 0);
+  operands[3] = (rtx) assign_386_stack_local (HImode, 1);
+  operands[4] = (rtx) assign_386_stack_local (DImode, 0);
 }")
 
 (define_insn ""
-  [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
-	(fix:SI (fix:XF (match_operand:XF 1 "register_operand" "f"))))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+  [(set (match_operand:DI 0 "nonimmediate_operand" "=m,!r")
+	(fix:DI (fix:XF (match_operand:XF 1 "register_operand" "f,f"))))
+   (clobber (match_dup 1))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))
+   (clobber (match_operand:HI 3 "memory_operand" "m,m"))
+   (clobber (match_operand:DI 4 "memory_operand" "m,o"))
+   (clobber (match_scratch:HI 5 "=&r,&r"))]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
+  "* return output_fix_trunc (insn, operands);"
+  [(set_attr "type" "fpop")])
+
+;; Conversion between fixed point and floating point.
 
-(define_insn ""
-  [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
-	(fix:SI (fix:DF (match_operand:DF 1 "register_operand" "f"))))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+;; ??? Possibly represent floatunssidf2 here in gcc2.
+
+(define_expand "floatsisf2"
+  [(parallel [(set (match_operand:SF 0 "register_operand" "")
+		   (float:SF (match_operand:SI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
+  "operands[2] = assign_386_stack_local (SImode, 0);")
 
 (define_insn ""
-  [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
-	(fix:SI (fix:SF (match_operand:SF 1 "register_operand" "f"))))
-   (clobber (match_operand:SI 2 "memory_operand" "m"))
-   (clobber (match_operand:DI 3 "memory_operand" "m"))
-   (clobber (match_scratch:SI 4 "=&q"))]
+  [(set (match_operand:SF 0 "register_operand" "=f,f")
+	(float:SF (match_operand:SI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:SI 2 "memory_operand" "m,m"))]
   "TARGET_80387"
-  "* return output_fix_trunc (insn, operands);")
-
-;; Conversion between fixed point and floating point.
-;; The actual pattern that matches these is at the end of this file.
+  "#")
 
-;; ??? Possibly represent floatunssidf2 here in gcc2.
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float:SF (match_operand:SI 1 "memory_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:SF (match_dup 1)))]
+  "")
 
-(define_expand "floatsisf2"
+(define_split
   [(set (match_operand:SF 0 "register_operand" "")
-	(float:SF (match_operand:SI 1 "nonimmediate_operand" "")))]
+	(float:SF (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:SF (match_dup 2)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:SF 0 "register_operand" "=f")
+	(float:SF (match_operand:SI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "floathisf2"
+  [(parallel [(set (match_operand:SF 0 "register_operand" "")
+		   (float:SF (match_operand:HI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
+  "operands[2] = assign_386_stack_local (HImode, 0);")
+
+(define_insn ""
+  [(set (match_operand:SF 0 "register_operand" "=f,f")
+	(float:SF (match_operand:HI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))]
+  "TARGET_80387"
+  "#")
+
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float:SF (match_operand:HI 1 "memory_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:SF (match_dup 1)))]
   "")
 
-(define_expand "floatdisf2"
+(define_split
   [(set (match_operand:SF 0 "register_operand" "")
-	(float:SF (match_operand:DI 1 "nonimmediate_operand" "")))]
+	(float:SF (match_operand:HI 1 "register_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:SF (match_dup 2)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:SF 0 "register_operand" "=f")
+	(float:SF (match_operand:HI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "floatdisf2"
+  [(parallel [(set (match_operand:SF 0 "register_operand" "")
+		   (float:SF (match_operand:DI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
+  "operands[2] = assign_386_stack_local (DImode, 0);")
+
+(define_insn ""
+  [(set (match_operand:SF 0 "register_operand" "=f,f")
+	(float:SF (match_operand:DI 1 "nonimmediate_operand" "m,!r")))
+      (clobber (match_operand:DI 2 "memory_operand" "m,o"))]
+  "TARGET_80387"
+  "#")
+
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float:SF (match_operand:DI 1 "memory_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:SF (match_dup 1)))]
+  "")
+
+(define_split
+  [(set (match_operand:SF 0 "register_operand" "")
+	(float:SF (match_operand:DI 1 "register_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:SF (match_dup 2)))]
   "")
 
+(define_insn ""
+  [(set (match_operand:SF 0 "register_operand" "=f")
+	(float:SF (match_operand:DI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
 (define_expand "floatsidf2"
+  [(parallel [(set (match_operand:DF 0 "register_operand" "")
+		   (float:DF (match_operand:SI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
+  "TARGET_80387"
+  "operands[2] = assign_386_stack_local (SImode, 0);")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f,f")
+	(float:DF (match_operand:SI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:SI 2 "memory_operand" "m,m"))]
+  "TARGET_80387"
+  "#")
+
+(define_split
   [(set (match_operand:DF 0 "register_operand" "")
-	(float:DF (match_operand:SI 1 "nonimmediate_operand" "")))]
+	(float:DF (match_operand:SI 1 "memory_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:DF (match_dup 1)))]
+  "")
+
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float:DF (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:DF (match_dup 2)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f")
+	(float:DF (match_operand:SI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "floathidf2"
+  [(parallel [(set (match_operand:DF 0 "register_operand" "")
+		   (float:DF (match_operand:HI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
+  "operands[2] = assign_386_stack_local (HImode, 0);")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f,f")
+	(float:DF (match_operand:HI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))]
+  "TARGET_80387"
+  "#")
+
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float:DF (match_operand:HI 1 "memory_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:DF (match_dup 1)))]
   "")
 
-(define_expand "floatdidf2"
+(define_split
   [(set (match_operand:DF 0 "register_operand" "")
-	(float:DF (match_operand:DI 1 "nonimmediate_operand" "")))]
+	(float:DF (match_operand:HI 1 "register_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:DF (match_dup 2)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f")
+	(float:DF (match_operand:HI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "floatdidf2"
+  [(parallel [(set (match_operand:DF 0 "register_operand" "")
+		   (float:DF (match_operand:DI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
+  "TARGET_80387"
+  "operands[2] = assign_386_stack_local (DImode, 0);")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f,f")
+	(float:DF (match_operand:DI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:DI 2 "memory_operand" "m,o"))]
   "TARGET_80387"
+  "#")
+
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float:DF (match_operand:DI 1 "memory_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:DF (match_dup 1)))]
   "")
 
+(define_split
+  [(set (match_operand:DF 0 "register_operand" "")
+	(float:DF (match_operand:DI 1 "register_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:DF (match_dup 2)))]
+  "")
+
+(define_insn ""
+  [(set (match_operand:DF 0 "register_operand" "=f")
+	(float:DF (match_operand:DI 1 "memory_operand" "m")))]
+  "TARGET_80387"
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
 (define_expand "floatsixf2"
-  [(set (match_operand:XF 0 "register_operand" "")
-	(float:XF (match_operand:SI 1 "nonimmediate_operand" "")))]
+  [(parallel [(set (match_operand:XF 0 "register_operand" "")
+		   (float:XF (match_operand:SI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
-  "")
+  "operands[2] = assign_386_stack_local (SImode, 0);")
 
-(define_expand "floatdixf2"
+(define_insn ""
+  [(set (match_operand:XF 0 "register_operand" "=f,f")
+	(float:XF (match_operand:SI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:SI 2 "memory_operand" "m,m"))]
+  "TARGET_80387"
+  "#")
+
+(define_split
   [(set (match_operand:XF 0 "register_operand" "")
-	(float:XF (match_operand:DI 1 "nonimmediate_operand" "")))]
-  "TARGET_80387 && LONG_DOUBLE_TYPE_SIZE == 96"
+	(float:XF (match_operand:SI 1 "memory_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:XF (match_dup 1)))]
   "")
 
-;; This will convert from SImode or DImode to MODE_FLOAT.
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float:XF (match_operand:SI 1 "register_operand" "")))
+   (clobber (match_operand:SI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:XF (match_dup 2)))]
+  "")
 
 (define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f")
-	(float:XF (match_operand:DI 1 "nonimmediate_operand" "rm")))]
+	(float:XF (match_operand:SI 1 "memory_operand" "m")))]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
 
-(define_insn ""
-  [(set (match_operand:DF 0 "register_operand" "=f")
-	(float:DF (match_operand:DI 1 "nonimmediate_operand" "rm")))]
+(define_expand "floathixf2"
+  [(parallel [(set (match_operand:XF 0 "register_operand" "")
+		   (float:XF (match_operand:HI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "operands[2] = assign_386_stack_local (HImode, 0);")
 
 (define_insn ""
-  [(set (match_operand:SF 0 "register_operand" "=f")
-	(float:SF (match_operand:DI 1 "nonimmediate_operand" "rm")))]
+  [(set (match_operand:XF 0 "register_operand" "=f,f")
+	(float:XF (match_operand:HI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:HI 2 "memory_operand" "m,m"))]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "#")
+
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float:XF (match_operand:HI 1 "memory_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:XF (match_dup 1)))]
+  "")
+
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float:XF (match_operand:HI 1 "register_operand" "")))
+   (clobber (match_operand:HI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:XF (match_dup 2)))]
+  "")
 
 (define_insn ""
-  [(set (match_operand:DF 0 "register_operand" "=f")
-	(float:DF (match_operand:SI 1 "nonimmediate_operand" "rm")))]
+  [(set (match_operand:XF 0 "register_operand" "=f")
+	(float:XF (match_operand:HI 1 "memory_operand" "m")))]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
+
+(define_expand "floatdixf2"
+  [(parallel [(set (match_operand:XF 0 "register_operand" "")
+		   (float:XF (match_operand:DI 1 "nonimmediate_operand" "")))
+	      (clobber (match_dup 2))])]
+  "TARGET_80387"
+  "operands[2] = assign_386_stack_local (DImode, 0);")
 
 (define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f,f")
-	(float:XF (match_operand:SI 1 "nonimmediate_operand" "m,!*r")))]
+	(float:XF (match_operand:DI 1 "nonimmediate_operand" "m,!r")))
+   (clobber (match_operand:DI 2 "memory_operand" "m,o"))]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "#")
+
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float:XF (match_operand:DI 1 "memory_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 0)
+	(float:XF (match_dup 1)))]
+  "")
+
+(define_split
+  [(set (match_operand:XF 0 "register_operand" "")
+	(float:XF (match_operand:DI 1 "register_operand" "")))
+   (clobber (match_operand:DI 2 "memory_operand" ""))]
+  "TARGET_80387 && reload_completed"
+  [(set (match_dup 2)
+	(match_dup 1))
+   (set (match_dup 0)
+	(float:XF (match_dup 2)))]
+  "")
 
 (define_insn ""
-  [(set (match_operand:SF 0 "register_operand" "=f")
-	(float:SF (match_operand:SI 1 "nonimmediate_operand" "rm")))]
+  [(set (match_operand:XF 0 "register_operand" "=f")
+	(float:XF (match_operand:DI 1 "memory_operand" "m")))]
   "TARGET_80387"
-  "*
-{
-  if (NON_STACK_REG_P (operands[1]))
-    {
-      output_op_from_reg (operands[1], AS1 (fild%z0,%1));
-      RET;
-    }
-  else if (GET_CODE (operands[1]) == MEM)
-    return AS1 (fild%z1,%1);
-  else
-    abort ();
-}")
+  "* return AS1 (fild%z1,%1);"
+  [(set_attr "type" "fpop")])
 
 ;;- add instructions
 
-(define_insn "addsidi3_1"
+(define_insn "*addsidi3_1"
   [(set (match_operand:DI 0 "nonimmediate_operand" "=&r,r,o,!&r,!r,o,!o")
 	(plus:DI (match_operand:DI 1 "general_operand" "0,0,0,o,riF,riF,o")
 		 (zero_extend:DI (match_operand:SI 2 "general_operand" "o,ri,ri,roi,roi,ri,ri"))))
@@ -2666,7 +3245,7 @@
   ""
   "*
 {
-  rtx low[3], high[3], xops[7], temp;
+  rtx low[3], high[3], xops[7];
 
   CC_STATUS_INIT;
 
@@ -2703,8 +3282,11 @@
 
   output_asm_insn (AS2 (add%L0,%2,%0), low);
   output_asm_insn (AS2 (adc%L0,%2,%0), high);
+  cc_status.value1 = high[0];
+  cc_status.flags = CC_NO_OVERFLOW;
   RET;
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "addsidi3_2"
   [(set (match_operand:DI 0 "nonimmediate_operand" "=&r,r,o,&r,!&r,&r,o,o,!o")
@@ -2714,7 +3296,7 @@
   ""
   "*
 {
-  rtx low[3], high[3], xops[7], temp;
+  rtx low[3], high[3], xops[7];
 
   CC_STATUS_INIT;
 
@@ -2781,8 +3363,11 @@
 
   output_asm_insn (AS2 (add%L0,%2,%0), low);
   output_asm_insn (AS2 (adc%L0,%2,%0), high);
+  cc_status.value1 = high[0];
+  cc_status.flags = CC_NO_OVERFLOW;
   RET;
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "adddi3"
   [(set (match_operand:DI 0 "general_operand" "=&r,&ro,!r,o,!&r,!o,!o")
@@ -2831,6 +3416,9 @@
 	}
     }
 
+  cc_status.value1 = high[0];
+  cc_status.flags = CC_NO_OVERFLOW;
+
   if (GET_CODE (operands[3]) == REG && GET_CODE (operands[2]) != REG)
     {
       xops[0] = high[0];
@@ -2855,7 +3443,8 @@
     output_asm_insn (AS2 (add%L0,%2,%0), high);
 
   RET;
-}")
+}"
+  [(set_attr "type" "binary")])
 
 ;; On a 486, it is faster to do movl/addl than to do a single leal if
 ;; operands[1] and operands[2] are both registers.
@@ -2875,7 +3464,7 @@
   "*
 {
   if (REG_P (operands[0]) && REG_P (operands[1])
-      && (REG_P (operands[2]) || GET_CODE (operands[2]) == CONST_INT)
+      && (REG_P (operands[2]) || CONSTANT_P (operands[2]))
       && REGNO (operands[0]) != REGNO (operands[1]))
     {
       if (REG_P (operands[2]) && REGNO (operands[0]) == REGNO (operands[2]))
@@ -2920,7 +3509,8 @@
     }
 
   return AS2 (add%L0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 ;; addsi3 is faster, so put this after.
 
@@ -2949,7 +3539,8 @@
 
   CC_STATUS_INIT;
   return AS2 (lea%L0,%a1,%0);
-}")
+}"
+  [(set_attr "type" "lea")])
 
 ;; ??? `lea' here, for three operand add?  If leaw is used, only %bx,
 ;; %si and %di can appear in SET_SRC, and output_asm_insn might not be
@@ -2963,12 +3554,30 @@
   "IX86_EXPAND_BINARY_OPERATOR (PLUS, HImode, operands);")
 
 (define_insn ""
-  [(set (match_operand:HI 0 "nonimmediate_operand" "=rm,r")
-	(plus:HI (match_operand:HI 1 "nonimmediate_operand" "%0,0")
-		 (match_operand:HI 2 "general_operand" "ri,rm")))]
+  [(set (match_operand:HI 0 "nonimmediate_operand" "=rm,r,?r")
+	(plus:HI (match_operand:HI 1 "nonimmediate_operand" "%0,0,r")
+		 (match_operand:HI 2 "general_operand" "ri,rm,ri")))]
   "ix86_binary_operator_ok (PLUS, HImode, operands)"
   "*
 {
+  if (REG_P (operands[0]) && REG_P (operands[1])
+      && (REG_P (operands[2]) || CONSTANT_P (operands[2]))
+      && REGNO (operands[0]) != REGNO (operands[1]))
+    {
+      if (operands[2] == stack_pointer_rtx) 
+	abort ();
+
+      CC_STATUS_INIT;
+      operands[1]
+	= gen_rtx_PLUS (SImode,
+			gen_rtx_REG (SImode, REGNO (operands[1])),
+			(! REG_P (operands[2])
+			 ? operands[2]
+			 : gen_rtx_REG (SImode, REGNO (operands[2]))));
+      operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]));
+      return AS2 (lea%L0,%a1,%0);
+    }
+
   /* ??? what about offsettable memory references? */
   if (!TARGET_PENTIUMPRO /* partial stalls are just too painful to risk. */
       && QI_REG_P (operands[0])
@@ -3019,7 +3628,8 @@
     return AS1 (dec%W0,%0);
 
   return AS2 (add%W0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_expand "addqi3"
   [(set (match_operand:QI 0 "general_operand" "")
@@ -3029,12 +3639,31 @@
   "IX86_EXPAND_BINARY_OPERATOR (PLUS, QImode, operands);")
 
 (define_insn ""
-  [(set (match_operand:QI 0 "nonimmediate_operand" "=qm,q")
-	(plus:QI (match_operand:QI 1 "nonimmediate_operand" "%0,0")
-		 (match_operand:QI 2 "general_operand" "qn,qmn")))]
+  [(set (match_operand:QI 0 "nonimmediate_operand" "=qm,q,?q")
+	(plus:QI (match_operand:QI 1 "nonimmediate_operand" "%0,0,q")
+		 (match_operand:QI 2 "general_operand" "qn,qmn,qn")))]
   "ix86_binary_operator_ok (PLUS, QImode, operands)"
   "*
 {
+  if (REG_P (operands[0]) && REG_P (operands[1])
+      && (REG_P (operands[2]) || CONSTANT_P (operands[2]))
+      && (REGNO (operands[0]) != REGNO (operands[1])
+	  || NON_QI_REG_P (operands[1])
+	  || (REG_P (operands[2]) && NON_QI_REG_P (operands[2]))))
+    {
+      if (operands[2] == stack_pointer_rtx) 
+	abort ();
+
+      CC_STATUS_INIT;
+      operands[1]
+	= gen_rtx_PLUS (SImode,
+			gen_rtx_REG (SImode, REGNO (operands[1])),
+			(! REG_P (operands[2])
+			 ? operands[2]
+			 : gen_rtx_REG (SImode, REGNO (operands[2]))));
+      operands[0] = gen_rtx_REG (SImode, REGNO (operands[0]));
+      return AS2 (lea%L0,%a1,%0);
+    }
   if (operands[2] == const1_rtx)
     return AS1 (inc%B0,%0);
 
@@ -3044,7 +3673,8 @@
     return AS1 (dec%B0,%0);
 
   return AS2 (add%B0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 ;Lennart Augustsson <augustss@cs.chalmers.se>
 ;says this pattern just makes slower code:
@@ -3141,8 +3771,12 @@
 
   output_asm_insn (AS2 (sub%L0,%2,%0), low);
   output_asm_insn (AS2 (sbb%L0,%2,%0), high);
+  cc_status.value1 = high[0];
+  cc_status.flags = CC_NO_OVERFLOW;
+
   RET;
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "subdi3"
   [(set (match_operand:DI 0 "general_operand" "=&r,&ro,o,o,!&r,!o")
@@ -3185,6 +3819,9 @@
 	}
     }
 
+  cc_status.value1 = high[0];
+  cc_status.flags = CC_NO_OVERFLOW;
+
   if (GET_CODE (operands[3]) == REG)
     {
       xops[0] = high[0];
@@ -3206,10 +3843,12 @@
     }
 
   else
-    output_asm_insn (AS2 (sub%L0,%2,%0), high);
+      output_asm_insn (AS2 (sub%L0,%2,%0), high);
+
 
   RET;
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_expand "subsi3"
   [(set (match_operand:SI 0 "nonimmediate_operand" "")
@@ -3223,7 +3862,8 @@
 	(minus:SI (match_operand:SI 1 "nonimmediate_operand" "0,0")
 		  (match_operand:SI 2 "general_operand" "ri,rm")))]
   "ix86_binary_operator_ok (MINUS, SImode, operands)"
-  "* return AS2 (sub%L0,%2,%0);")
+  "* return AS2 (sub%L0,%2,%0);"
+  [(set_attr "type" "binary")])
 
 (define_expand "subhi3"
   [(set (match_operand:HI 0 "general_operand" "")
@@ -3248,7 +3888,8 @@
       return AS2 (sub%L0,%k2,%k0);
     }
  return AS2 (sub%W0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_expand "subqi3"
   [(set (match_operand:QI 0 "general_operand" "")
@@ -3262,7 +3903,8 @@
 	(minus:QI (match_operand:QI 1 "nonimmediate_operand" "0,0")
 		  (match_operand:QI 2 "general_operand" "qn,qmn")))]
   "ix86_binary_operator_ok (MINUS, QImode, operands)"
-  "* return AS2 (sub%B0,%2,%0);")
+  "* return AS2 (sub%B0,%2,%0);"
+  [(set_attr "type" "binary")])
 
 ;; The patterns that match these are at the end of this file.
 
@@ -3688,7 +4330,8 @@ word_zero_and_operation:
     }
 
   return AS2 (and%L0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "andhi3"
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm,r")
@@ -3766,14 +4409,16 @@ word_zero_and_operation:
     }
 
   return AS2 (and%W0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "andqi3"
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm,q")
 	(and:QI (match_operand:QI 1 "nonimmediate_operand" "%0,0")
 		(match_operand:QI 2 "general_operand" "qn,qmn")))]
   ""
-  "* return AS2 (and%B0,%2,%0);")
+  "* return AS2 (and%B0,%2,%0);"
+  [(set_attr "type" "binary")])
 
 /* I am nervous about these two.. add them later..
 ;I presume this means that we have something in say op0= eax which is small
@@ -3889,7 +4534,8 @@ byte_or_operation:
     }
 
   return AS2 (or%L0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "iorhi3"
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm,r")
@@ -3973,14 +4619,16 @@ byte_or_operation:
     }
 
   return AS2 (or%W0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "iorqi3"
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm,q")
 	(ior:QI (match_operand:QI 1 "nonimmediate_operand" "%0,0")
 		(match_operand:QI 2 "general_operand" "qn,qmn")))]
   ""
-  "* return AS2 (or%B0,%2,%0);")
+  "* return AS2 (or%B0,%2,%0);"
+  [(set_attr "type" "binary")])
 
 ;;- xor instructions
 
@@ -4016,7 +4664,10 @@ byte_or_operation:
 byte_xor_operation:
 	    CC_STATUS_INIT;
 	      
-	    if (intval == 0xff)
+	    if (intval == 0xff
+                && (!TARGET_PENTIUM || optimize_size
+                    || (GET_CODE (operands[0]) == MEM 
+                        && memory_address_info (XEXP (operands[0], 0), 1))))
 	      return AS1 (not%B0,%b0);
 
 	    if (intval != INTVAL (operands[2]))
@@ -4032,7 +4683,10 @@ byte_xor_operation:
 	  if (REG_P (operands[0]))
 	    {
 	      CC_STATUS_INIT;
-	      if (intval == 0xff)
+	      if (intval == 0xff 
+                  && (!TARGET_PENTIUM || optimize_size
+                      || (GET_CODE (operands[0]) == MEM 
+                          && memory_address_info (XEXP (operands[0], 0), 1))))
 		return AS1 (not%B0,%h0);
 
 	      operands[2] = GEN_INT (intval);
@@ -4068,7 +4722,8 @@ byte_xor_operation:
     }
 
   return AS2 (xor%L0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "xorhi3"
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm,r")
@@ -4088,7 +4743,10 @@ byte_xor_operation:
 	  if (INTVAL (operands[2]) & 0xffff0000)
 	    operands[2] = GEN_INT (INTVAL (operands[2]) & 0xffff);
 
-	  if (INTVAL (operands[2]) == 0xff)
+	  if (INTVAL (operands[2]) == 0xff 
+              && (!TARGET_PENTIUM || optimize_size
+                  || (GET_CODE (operands[0]) == MEM 
+                      && memory_address_info (XEXP (operands[0], 0), 1))))
 	    return AS1 (not%B0,%b0);
 
 	  return AS2 (xor%B0,%2,%b0);
@@ -4102,7 +4760,10 @@ byte_xor_operation:
 	  CC_STATUS_INIT;
 	  operands[2] = GEN_INT ((INTVAL (operands[2]) >> 8) & 0xff);
 
-	  if (INTVAL (operands[2]) == 0xff)
+	  if (INTVAL (operands[2]) == 0xff
+              && (!TARGET_PENTIUM || optimize_size
+                  || (GET_CODE (operands[0]) == MEM 
+                      && memory_address_info (XEXP (operands[0], 0), 1))))
 	    return AS1 (not%B0,%h0);
 
 	  return AS2 (xor%B0,%2,%h0);
@@ -4129,115 +4790,55 @@ byte_xor_operation:
     }
 
   return AS2 (xor%W0,%2,%0);
-}")
+}"
+  [(set_attr "type" "binary")])
 
 (define_insn "xorqi3"
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm,q")
 	(xor:QI (match_operand:QI 1 "nonimmediate_operand" "%0,0")
 		(match_operand:QI 2 "general_operand" "qn,qm")))]
   ""
-  "* return AS2 (xor%B0,%2,%0);")
+  "* return AS2 (xor%B0,%2,%0);"
+  [(set_attr "type" "binary")])
 
 ;; logical operations for DImode
 
-
 (define_insn "anddi3"
-  [(set (match_operand:DI 0 "general_operand" "=&r,&ro,!r,o,!&r,!o,!o")
-	(and:DI (match_operand:DI 1 "general_operand" "%0,0,0,0iF,or,riF,o")
-		(match_operand:DI 2 "general_operand" "o,riF,0,or,or,oriF,o")))
-   (clobber (match_scratch:SI 3 "=X,X,X,&r,X,&r,&r"))]
+  [(set (match_operand:DI 0 "general_operand" "=&r,&ro")
+	(and:DI (match_operand:DI 1 "general_operand" "%0,0")
+		(match_operand:DI 2 "general_operand" "oriF,riF")))]
   ""
-  "#")
+  "#"
+  [(set_attr "type" "binary")])
+
 
 (define_insn "iordi3"
-  [(set (match_operand:DI 0 "general_operand" "=&r,&ro,!r,o,!&r,!o,!o")
-	(ior:DI (match_operand:DI 1 "general_operand" "%0,0,0,0iF,or,riF,o")
-		(match_operand:DI 2 "general_operand" "o,riF,0,or,or,oriF,o")))
-   (clobber (match_scratch:SI 3 "=X,X,X,&r,X,&r,&r"))]
+  [(set (match_operand:DI 0 "general_operand" "=&r,&ro")
+	(ior:DI (match_operand:DI 1 "general_operand" "%0,0")
+		(match_operand:DI 2 "general_operand" "oriF,riF")))]
   ""
-  "#")
-  
+  "#"
+  [(set_attr "type" "binary")])
+
 (define_insn "xordi3"
-  [(set (match_operand:DI 0 "general_operand" "=&r,&ro,!r,o,!&r,!o,!o")
-	(xor:DI (match_operand:DI 1 "general_operand" "%0,0,0,0iF,or,riF,o")
-		(match_operand:DI 2 "general_operand" "o,riF,0,or,or,oriF,o")))
-   (clobber (match_scratch:SI 3 "=X,X,X,&r,X,&r,&r"))]
+  [(set (match_operand:DI 0 "general_operand" "=&r,&ro")
+	(xor:DI (match_operand:DI 1 "general_operand" "%0,0")
+		(match_operand:DI 2 "general_operand" "oriF,riF")))]
   ""
-  "#")
+  "#"
+  [(set_attr "type" "binary")])
 
 (define_split
-  [(set (match_operand:DI 0 "general_operand" "=&r,&ro,!r,o,!&r,!o,!o")
-	(match_operator:DI 4 "ix86_logical_operator"
-	  [(match_operand:DI 1 "general_operand" "%0,0,0,0iF,or,riF,o")
-	   (match_operand:DI 2 "general_operand" "o,riF,0,or,or,oriF,o")]))
-   (clobber (match_scratch:SI 3 "=X,X,X,&r,X,&r,&r"))]
-  "reload_completed"
-  [(const_int 0)]
-  "
-{
-  rtx low[3], high[3], xops[7], temp;
-  rtx (*genfunc)() = (GET_CODE (operands[4]) == AND ? gen_andsi3
-		      : GET_CODE (operands[4]) == IOR ? gen_iorsi3
-		      : GET_CODE (operands[4]) == XOR ? gen_xorsi3
-		      : 0);
-
-  if (rtx_equal_p (operands[0], operands[2]))
-    {
-      temp = operands[1];
-      operands[1] = operands[2];
-      operands[2] = temp;
-    }
-
-  split_di (operands, 3, low, high);
-  if (!rtx_equal_p (operands[0], operands[1]))
-    {
-      xops[0] = high[0];
-      xops[1] = low[0];
-      xops[2] = high[1];
-      xops[3] = low[1];
-
-      if (GET_CODE (operands[0]) != MEM)
-	{
-	  emit_insn (gen_movsi (xops[1], xops[3]));
-	  emit_insn (gen_movsi (xops[0], xops[2]));
-	}
-      else
-	{
-	  xops[4] = high[2];
-	  xops[5] = low[2];
-	  xops[6] = operands[3];
-	  emit_insn (gen_movsi (xops[6], xops[3]));
-	  emit_insn ((*genfunc) (xops[6], xops[6], xops[5]));
-	  emit_insn (gen_movsi (xops[1], xops[6]));
-	  emit_insn (gen_movsi (xops[6], xops[2]));
-	  emit_insn ((*genfunc) (xops[6], xops[6], xops[4]));
-	  emit_insn (gen_movsi (xops[0], xops[6]));
-	  DONE;
-	}
-    }
-
-  if (GET_CODE (operands[3]) == REG && GET_CODE (operands[2]) != REG)
-    {
-      xops[0] = high[0];
-      xops[1] = low[0];
-      xops[2] = high[2];
-      xops[3] = low[2];
-      xops[4] = operands[3];
-
-      emit_insn (gen_movsi (xops[4], xops[3]));
-      emit_insn ((*genfunc) (xops[1], xops[1], xops[4]));
-      emit_insn (gen_movsi (xops[4], xops[2]));
-      emit_insn ((*genfunc) (xops[0], xops[0], xops[4]));
-    }
-
-  else
-    {
-      emit_insn ((*genfunc) (low[0], low[0], low[2]));
-      emit_insn ((*genfunc) (high[0], high[0], high[2]));
-    }
-
-  DONE;
-}")
+  [(set (match_operand:DI 0 "general_operand" "")
+	(match_operator:DI 3 "ix86_logical_operator"
+	  [(match_operand:DI 1 "general_operand" "")
+	   (match_operand:DI 2 "general_operand" "")]))]
+  ""
+  [(set (match_dup 4) (match_op_dup:SI 3 [(match_dup 6) (match_dup 8)]))
+   (set (match_dup 5) (match_op_dup:SI 3 [(match_dup 7) (match_dup 9)]))]
+  "split_di (&operands[0], 1, &operands[4], &operands[5]);
+   split_di (&operands[1], 1, &operands[6], &operands[7]);
+   split_di (&operands[2], 1, &operands[8], &operands[9]);")
 
 ;;- negation instructions
 
@@ -4271,7 +4872,13 @@ byte_xor_operation:
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm")
 	(neg:HI (match_operand:HI 1 "nonimmediate_operand" "0")))]
   ""
-  "neg%W0 %0")
+  "*
+    if (REG_P (operands[0]) && i386_cc_probably_useless_p (insn))
+      {
+	CC_STATUS_INIT;
+	return AS1(neg%L0,%k0);
+      }
+    return AS1(neg%W0,%0);")
 
 (define_insn "negqi2"
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm")
@@ -4283,31 +4890,36 @@ byte_xor_operation:
   [(set (match_operand:SF 0 "register_operand" "=f")
 	(neg:SF (match_operand:SF 1 "register_operand" "0")))]
   "TARGET_80387"
-  "fchs")
+  "fchs"
+  [(set_attr "type" "fpop")])
 
 (define_insn "negdf2"
   [(set (match_operand:DF 0 "register_operand" "=f")
 	(neg:DF (match_operand:DF 1 "register_operand" "0")))]
   "TARGET_80387"
-  "fchs")
+  "fchs"
+  [(set_attr "type" "fpop")])
 
 (define_insn ""
   [(set (match_operand:DF 0 "register_operand" "=f")
 	(neg:DF (float_extend:DF (match_operand:SF 1 "register_operand" "0"))))]
   "TARGET_80387"
-  "fchs")
+  "fchs"
+  [(set_attr "type" "fpop")])
 
 (define_insn "negxf2"
   [(set (match_operand:XF 0 "register_operand" "=f")
 	(neg:XF (match_operand:XF 1 "register_operand" "0")))]
   "TARGET_80387"
-  "fchs")
+  "fchs"
+  [(set_attr "type" "fpop")])
 
 (define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f")
 	(neg:XF (float_extend:XF (match_operand:DF 1 "register_operand" "0"))))]
   "TARGET_80387"
-  "fchs")
+  "fchs"
+  [(set_attr "type" "fpop")])
 
 ;; Absolute value instructions
 
@@ -4443,19 +5055,88 @@ byte_xor_operation:
   [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
 	(not:SI (match_operand:SI 1 "nonimmediate_operand" "0")))]
   ""
-  "not%L0 %0")
+  "*
+{
+  /* A Pentium NOT is not pariable.  Output it only in case of complex
+     memory address, because XOR will be inpariable anyway because
+     of immediate/displacement rule.  */
+
+  if (TARGET_PENTIUM && !optimize_size
+      && (GET_CODE (operands[0]) != MEM 
+	  || memory_address_info (XEXP (operands[0], 0), 1) == 0))
+    {
+      rtx xops[2];
+      xops[0] = operands[0];
+      xops[1] = GEN_INT (0xffffffff);
+      output_asm_insn (AS2 (xor%L0,%1,%0), xops);
+      RET;
+    }
+  else
+    return AS1 (not%L0,%0);
+}")
 
 (define_insn "one_cmplhi2"
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm")
 	(not:HI (match_operand:HI 1 "nonimmediate_operand" "0")))]
   ""
-  "not%W0 %0")
+  "*
+{
+  /* A Pentium NOT is not pariable.  Output it only in case of complex
+     memory address, because XOR will be inpariable anyway because
+     of immediate/displacement rule.  */
+
+  if (TARGET_PENTIUM && !optimize_size
+      && (GET_CODE (operands[0]) != MEM 
+	  || memory_address_info (XEXP (operands[0], 0), 1) == 0))
+    {
+      rtx xops[2];
+      xops[0] = operands[0];
+      xops[1] = GEN_INT (0xffff);
+      if (REG_P (operands[0])
+	  && i386_cc_probably_useless_p (insn))
+       {
+	  CC_STATUS_INIT;
+	  output_asm_insn (AS2 (xor%L0,%1,%k0), xops);
+       }
+      else
+	output_asm_insn (AS2 (xor%W0,%1,%0), xops);
+      RET;
+    }
+  else
+    {
+      if (REG_P (operands[0])
+	  && i386_cc_probably_useless_p (insn))
+	{
+	  CC_STATUS_INIT;
+	  return AS1 (not%L0,%k0);
+	}
+      return AS1 (not%W0,%0);
+    }
+}")
 
 (define_insn "one_cmplqi2"
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm")
 	(not:QI (match_operand:QI 1 "nonimmediate_operand" "0")))]
   ""
-  "not%B0 %0")
+  "*
+{
+  /* A Pentium NOT is not pariable.  Output it only in case of complex
+     memory address, because XOR will be inpariable anyway because
+     of immediate/displacement rule.  */
+
+  if (TARGET_PENTIUM && !optimize_size
+      && (GET_CODE (operands[0]) != MEM 
+	  || memory_address_info (XEXP (operands[0], 0), 1) == 0))
+    {
+      rtx xops[2];
+      xops[0] = operands[0];
+      xops[1] = GEN_INT (0xff);
+      output_asm_insn (AS2 (xor%B0,%1,%0), xops);
+      RET;
+    }
+  else
+    return AS1 (not%B0,%0);
+}")
 
 ;;- arithmetic shift instructions
 
@@ -4566,79 +5247,79 @@ byte_xor_operation:
   RET;
 }")
 
-;; On i386 and i486, "addl reg,reg" is faster than "sall $1,reg"
-;; On i486, movl/sall appears slightly faster than leal, but the leal
-;; is smaller - use leal for now unless the shift count is 1.
+(define_expand "ashlsi3"
+  [(set (match_operand:SI 0 "nonimmediate_operand" "")
+	(ashift:SI (match_operand:SI 1 "nonimmediate_operand" "")
+		   (match_operand:SI 2 "nonmemory_operand" "")))]
+  ""
+  "")
 
-(define_insn "ashlsi3"
-  [(set (match_operand:SI 0 "nonimmediate_operand" "=r,rm")
-	(ashift:SI (match_operand:SI 1 "nonimmediate_operand" "r,0")
-		   (match_operand:SI 2 "nonmemory_operand" "M,cI")))]
+(define_expand "ashlhi3"
+  [(set (match_operand:HI 0 "nonimmediate_operand" "")
+	(ashift:HI (match_operand:HI 1 "nonimmediate_operand" "")
+		   (match_operand:HI 2 "nonmemory_operand" "")))]
   ""
-  "*
-{
-  if (REG_P (operands[0]) && REGNO (operands[0]) != REGNO (operands[1]))
-    {
-      if (TARGET_DOUBLE_WITH_ADD && INTVAL (operands[2]) == 1)
-	{
-	  output_asm_insn (AS2 (mov%L0,%1,%0), operands);
-	  return AS2 (add%L0,%1,%0);
-	}
-      else
-        {
-          CC_STATUS_INIT;
+  "")
 
-	  if (operands[1] == stack_pointer_rtx)
-	    {
-	      output_asm_insn (AS2 (mov%L0,%1,%0), operands);
-	      operands[1] = operands[0];
-	    }
-          operands[1] = gen_rtx_MULT (SImode, operands[1],
-				      GEN_INT (1 << INTVAL (operands[2])));
-	  return AS2 (lea%L0,%a1,%0);
-	}
-    }
+(define_expand "ashlqi3"
+  [(set (match_operand:QI 0 "nonimmediate_operand" "")
+	(ashift:QI (match_operand:QI 1 "nonimmediate_operand" "")
+		   (match_operand:QI 2 "nonmemory_operand" "")))]
+  ""
+  "")
 
-  if (REG_P (operands[2]))
-    return AS2 (sal%L0,%b2,%0);
+;; Pattern for shifts which can be encoded into an lea instruction.
+;; This is kept as a separate pattern so that regmove can optimize cases
+;; where we know the source and destination must match.
+;;
+;; Do not expose this pattern when optimizing for size since we never want
+;; to use lea when optimizing for size since mov+sal is smaller than lea.
 
-  if (REG_P (operands[0]) && operands[2] == const1_rtx)
-    return AS2 (add%L0,%0,%0);
+(define_insn ""
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=r,r")
+	(ashift:SI (match_operand:SI 1 "nonimmediate_operand" "0,r")
+		   (match_operand:SI 2 "small_shift_operand" "M,M")))]
+  "! optimize_size"
+  "* return output_ashl (insn, operands);")
 
-  return AS2 (sal%L0,%2,%0);
-}")
+;; Generic left shift pattern to catch all cases not handled by the
+;; shift pattern above.
+(define_insn ""
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
+	(ashift:SI (match_operand:SI 1 "nonimmediate_operand" "0")
+		   (match_operand:SI 2 "nonmemory_operand" "cI")))]
+  ""
+  "* return output_ashl (insn, operands);")
 
-(define_insn "ashlhi3"
+(define_insn ""
+  [(set (match_operand:HI 0 "nonimmediate_operand" "=r,r")
+	(ashift:HI (match_operand:HI 1 "nonimmediate_operand" "0,r")
+		   (match_operand:HI 2 "small_shift_operand" "M,M")))]
+  "! optimize_size"
+  "* return output_ashl (insn, operands);")
+
+(define_insn ""
   [(set (match_operand:HI 0 "nonimmediate_operand" "=rm")
 	(ashift:HI (match_operand:HI 1 "nonimmediate_operand" "0")
 		   (match_operand:HI 2 "nonmemory_operand" "cI")))]
   ""
-  "*
-{
-  if (REG_P (operands[2]))
-    return AS2 (sal%W0,%b2,%0);
+  "* return output_ashl (insn, operands);")
 
-  if (REG_P (operands[0]) && operands[2] == const1_rtx)
-    return AS2 (add%W0,%0,%0);
-
-  return AS2 (sal%W0,%2,%0);
-}")
+(define_insn ""
+  [(set (match_operand:QI 0 "nonimmediate_operand" "=q,q")
+	(ashift:QI (match_operand:QI 1 "nonimmediate_operand" "0,q")
+		   (match_operand:QI 2 "small_shift_operand" "M,M")))]
+  "! optimize_size"
+  "* return output_ashl (insn, operands);")
 
-(define_insn "ashlqi3"
+;; Generic left shift pattern to catch all cases not handled by the
+;; shift pattern above.
+(define_insn ""
   [(set (match_operand:QI 0 "nonimmediate_operand" "=qm")
 	(ashift:QI (match_operand:QI 1 "nonimmediate_operand" "0")
 		   (match_operand:QI 2 "nonmemory_operand" "cI")))]
   ""
-  "*
-{
-  if (REG_P (operands[2]))
-    return AS2 (sal%B0,%b2,%0);
-
-  if (REG_P (operands[0]) && operands[2] == const1_rtx)
-    return AS2 (add%B0,%0,%0);
-
-  return AS2 (sal%B0,%2,%0);
-}")
+  "* return output_ashl (insn, operands);")
 
 ;; See comment above `ashldi3' about how this works.
 
@@ -4755,6 +5436,15 @@ byte_xor_operation:
   RET;
 }")
 
+(define_insn "ashrsi3_31"
+  [(set (match_operand:SI 0 "nonimmediate_operand" "=rm,d")
+	(ashiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0,a")
+		     (const_int 31)))]
+  "!TARGET_PENTIUM || optimize_size"
+  "@
+    sar%L0 $31,%0
+    cltd")
+
 (define_insn "ashrsi3"
   [(set (match_operand:SI 0 "nonimmediate_operand" "=rm")
 	(ashiftrt:SI (match_operand:SI 1 "nonimmediate_operand" "0")
@@ -5177,7 +5867,10 @@ byte_xor_operation:
   mask = ((1 << INTVAL (operands[1])) - 1) << INTVAL (operands[2]);
   operands[1] = GEN_INT (mask);
 
-  if (QI_REG_P (operands[0]))
+  if (QI_REG_P (operands[0])
+      /* A Pentium test is pairable only with eax. Not with ah or al.  */
+      && (! REG_P (operands[0]) || REGNO (operands[0]) || !TARGET_PENTIUM
+          || optimize_size))
     {
       if ((mask & ~0xff) == 0)
         {
@@ -5211,7 +5904,10 @@ byte_xor_operation:
   mask = ((1 << INTVAL (operands[1])) - 1) << INTVAL (operands[2]);
   operands[1] = GEN_INT (mask);
 
-  if (! REG_P (operands[0]) || QI_REG_P (operands[0]))
+  if ((! REG_P (operands[0]) || QI_REG_P (operands[0]))
+      /* A Pentium test is pairable only with eax. Not with ah or al.  */
+      && (! REG_P (operands[0]) || REGNO (operands[0]) || !TARGET_PENTIUM
+          || optimize_size))
     {
       if ((mask & ~0xff) == 0)
         {
@@ -5261,10 +5957,6 @@ byte_xor_operation:
 ;; For all sCOND expanders, also expand the compare or test insn that
 ;; generates cc0.  Generate an equality comparison if `seq' or `sne'.
 
-;; The 386 sCOND opcodes can write to memory.  But a gcc sCOND insn may
-;; not have any input reloads.  A MEM write might need an input reload
-;; for the address of the MEM.  So don't allow MEM as the SET_DEST.
-
 (define_expand "seq"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5279,18 +5971,6 @@ byte_xor_operation:
     operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
 }")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(eq:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return AS1 (setnb,%0);
-  else
-    return AS1 (sete,%0);
-}")
-
 (define_expand "sne"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5305,19 +5985,6 @@ byte_xor_operation:
     operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
 }")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(ne:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return AS1 (setb,%0);
-  else
-    return AS1 (setne,%0);
-}
-")
-
 (define_expand "sgt"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5325,19 +5992,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(gt:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (sete,%0);
-
-  OUTPUT_JUMP (\"setg %0\", \"seta %0\", NULL_PTR);
-}")
-
 (define_expand "sgtu"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5345,12 +5999,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(gtu:QI (cc0) (const_int 0)))]
-  ""
-  "* return \"seta %0\"; ")
-
 (define_expand "slt"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5358,19 +6006,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(lt:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (sete,%0);
-
-  OUTPUT_JUMP (\"setl %0\", \"setb %0\", \"sets %0\");
-}")
-
 (define_expand "sltu"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5378,12 +6013,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(ltu:QI (cc0) (const_int 0)))]
-  ""
-  "* return \"setb %0\"; ")
-
 (define_expand "sge"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5391,19 +6020,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(ge:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (sete,%0);
-
-  OUTPUT_JUMP (\"setge %0\", \"setae %0\", \"setns %0\");
-}")
-
 (define_expand "sgeu"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5411,12 +6027,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(geu:QI (cc0) (const_int 0)))]
-  ""
-  "* return \"setae %0\"; ")
-
 (define_expand "sle"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5424,19 +6034,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(le:QI (cc0) (const_int 0)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (setb,%0);
-
-  OUTPUT_JUMP (\"setle %0\", \"setbe %0\", NULL_PTR);
-}")
-
 (define_expand "sleu"
   [(match_dup 1)
    (set (match_operand:QI 0 "register_operand" "")
@@ -5444,11 +6041,69 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (match_operand:QI 0 "register_operand" "=q")
-	(leu:QI (cc0) (const_int 0)))]
-  ""
-  "* return \"setbe %0\"; ")
+;; The 386 sCOND opcodes can write to memory.  But a gcc sCOND insn may
+;; not have any input reloads.  A MEM write might need an input reload
+;; for the address of the MEM.  So don't allow MEM as the SET_DEST.
+
+(define_insn "*setcc"
+  [(set (match_operand:QI 0 "nonimmediate_operand" "=qm")
+	(match_operator:QI 1 "comparison_operator" [(cc0) (const_int 0)]))]
+  "reload_completed || register_operand (operands[0], QImode)"
+  "*
+{
+  enum rtx_code code = GET_CODE (operands[1]);
+  if (cc_prev_status.flags & CC_TEST_AX)
+    {
+      int eq;
+      HOST_WIDE_INT c;
+      operands[2] = gen_rtx_REG (SImode, 0);
+      switch (code)
+	{
+	case EQ:
+	  c = 0x4000;
+	  eq = 0;
+	  break;
+	case NE:
+	  c = 0x4000;
+	  eq = 1;
+	  break;
+	case GT:
+	  c = 0x4100;
+	  eq = 1;
+	  break;
+	case LT:
+	  c = 0x100;
+	  eq = 0;
+	  break;
+	case GE:
+	  c = 0x100;
+	  eq = 1;
+	  break;
+	case LE:
+	  c = 0x4100;
+	  eq = 0;
+	  break;
+	default:
+	  abort ();
+	}
+      if (!TARGET_PENTIUM || optimize_size)
+        {
+          operands[3] = GEN_INT (c >> 8);
+          output_asm_insn (AS2 (test%B0,%3,%h2), operands);
+        }
+      else
+        {
+          operands[3] = GEN_INT (c);
+          output_asm_insn (AS2 (test%L0,%3,%2), operands);
+        }
+      return eq ? AS1 (sete,%0) : AS1 (setne, %0);
+    }
+
+  if ((cc_status.flags & CC_NO_OVERFLOW) && (code == LE || code == GT))
+    return (char *)0;
+  return AS1(set%D1,%0);
+}")
+
 
 ;; Basic conditional jump instructions.
 ;; We ignore the overflow flag for signed branch instructions.
@@ -5473,29 +6128,6 @@ byte_xor_operation:
     operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
 }")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (eq (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return \"jnc %l0\";
-  else
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4000);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
-    }
-
-    return \"je %l0\";
-}")
-
 (define_expand "bne"
   [(match_dup 1)
    (set (pc)
@@ -5513,28 +6145,6 @@ byte_xor_operation:
     operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);
 }")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ne (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return \"jc %l0\";
-  else
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4000);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
-    }
-
-    return \"jne %l0\";
-}")
 
 (define_expand "bgt"
   [(match_dup 1)
@@ -5546,29 +6156,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (gt (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (je,%l0);
-
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
-    }
-  OUTPUT_JUMP (\"jg %l0\", \"ja %l0\", NULL_PTR);
-}")
-
 (define_expand "bgtu"
   [(match_dup 1)
    (set (pc)
@@ -5579,15 +6166,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (gtu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "ja %l0")
-
 (define_expand "blt"
   [(match_dup 1)
    (set (pc)
@@ -5598,28 +6176,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (lt (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (je,%l0);
-
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
-    }
-  OUTPUT_JUMP (\"jl %l0\", \"jb %l0\", \"js %l0\");
-}")
 
 (define_expand "bltu"
   [(match_dup 1)
@@ -5631,15 +6187,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ltu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "jb %l0")
-
 (define_expand "bge"
   [(match_dup 1)
    (set (pc)
@@ -5650,28 +6197,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ge (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (je,%l0);
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
-    }
-  OUTPUT_JUMP (\"jge %l0\", \"jae %l0\", \"jns %l0\");
-}")
-
 (define_expand "bgeu"
   [(match_dup 1)
    (set (pc)
@@ -5682,15 +6207,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (geu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "jae %l0")
-
 (define_expand "ble"
   [(match_dup 1)
    (set (pc)
@@ -5701,29 +6217,6 @@ byte_xor_operation:
   ""
   "operands[1] = (*i386_compare_gen)(i386_compare_op0, i386_compare_op1);")
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (le (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (jb,%l0);
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
-    }
-
-  OUTPUT_JUMP (\"jle %l0\", \"jbe %l0\", NULL_PTR);
-}")
-
 (define_expand "bleu"
   [(match_dup 1)
    (set (pc)
@@ -5736,184 +6229,127 @@ byte_xor_operation:
 
 (define_insn ""
   [(set (pc)
-	(if_then_else (leu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
+	(if_then_else (match_operator 0 "comparison_operator"
+				      [(cc0) (const_int 0)])
+		      (label_ref (match_operand 1 "" ""))
 		      (pc)))]
   ""
-  "jbe %l0")
-
-;; Negated conditional jump instructions.
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (eq (cc0)
-			  (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "*
-{
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return \"jc %l0\";
-  else
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4000);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
-    }
-    return \"jne %l0\";
-}")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ne (cc0)
-			  (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
   "*
 {
-  if (cc_prev_status.flags & CC_Z_IN_NOT_C)
-    return \"jnc %l0\";
-  else
+  enum rtx_code code = GET_CODE (operands[0]);
   if (cc_prev_status.flags & CC_TEST_AX)
     {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4000);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
+      int eq;
+      HOST_WIDE_INT c;
+      operands[2] = gen_rtx_REG (SImode, 0);
+      switch (code)
+	{
+	case EQ:
+	  c = 0x4000;
+	  eq = 0;
+	  break;
+	case NE:
+	  c = 0x4000;
+	  eq = 1;
+	  break;
+	case GT:
+	  c = 0x4100;
+	  eq = 1;
+	  break;
+	case LT:
+	  c = 0x100;
+	  eq = 0;
+	  break;
+	case GE:
+	  c = 0x100;
+	  eq = 1;
+	  break;
+	case LE:
+	  c = 0x4100;
+	  eq = 0;
+	  break;
+	default:
+	  abort ();
+	}
+      if (!TARGET_PENTIUM || optimize_size)
+        {
+          operands[3] = GEN_INT (c >> 8);
+          output_asm_insn (AS2 (test%B0,%3,%h2), operands);
+        }
+      else
+        {
+          operands[3] = GEN_INT (c);
+          output_asm_insn (AS2 (test%L0,%3,%2), operands);
+        }
+      return eq ? AS1 (je,%l1) : AS1 (jne, %l1);
     }
-    return \"je %l0\";
-}")
+  if ((cc_status.flags & CC_NO_OVERFLOW) && (code == LE || code == GT))
+    return (char *)0;
 
-(define_insn ""
-  [(set (pc)
-	(if_then_else (gt (cc0)
-			  (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (jne,%l0);
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
-    }
-  OUTPUT_JUMP (\"jle %l0\", \"jbe %l0\", NULL_PTR);
+  return AS1(j%D0,%l1);
 }")
 
 (define_insn ""
   [(set (pc)
-	(if_then_else (gtu (cc0)
-			   (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "jbe %l0")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (lt (cc0)
-			  (const_int 0))
+	(if_then_else (match_operator 0 "comparison_operator"
+				      [(cc0) (const_int 0)])
 		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
+		      (label_ref (match_operand 1 "" ""))))]
   ""
   "*
 {
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (jne,%l0);
+  enum rtx_code code = GET_CODE (operands[0]);
   if (cc_prev_status.flags & CC_TEST_AX)
     {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
+      int eq;
+      HOST_WIDE_INT c;
+      operands[2] = gen_rtx_REG (SImode, 0);
+      switch (code)
+	{
+	case EQ:
+	  c = 0x4000;
+	  eq = 1;
+	  break;
+	case NE:
+	  c = 0x4000;
+	  eq = 0;
+	  break;
+	case GT:
+	  c = 0x4100;
+	  eq = 0;
+	  break;
+	case LT:
+	  c = 0x100;
+	  eq = 1;
+	  break;
+	case GE:
+	  c = 0x100;
+	  eq = 0;
+	  break;
+	case LE:
+	  c = 0x4100;
+	  eq = 1;
+	  break;
+	default:
+	  abort ();
+	}
+      if (!TARGET_PENTIUM || optimize_size)
+        {
+          operands[3] = GEN_INT (c >> 8);
+          output_asm_insn (AS2 (test%B0,%3,%h2), operands);
+        }
+      else
+        {
+          operands[3] = GEN_INT (c);
+          output_asm_insn (AS2 (test%L0,%3,%2), operands);
+        }
+      return eq ? AS1 (je,%l1) : AS1 (jne, %l1);
     }
+  if ((cc_status.flags & CC_NO_OVERFLOW) && (code == LE || code == GT))
+    return (char *)0;
 
-  OUTPUT_JUMP (\"jge %l0\", \"jae %l0\", \"jns %l0\");
-}")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ltu (cc0)
-			   (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "jae %l0")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (ge (cc0)
-			  (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (jne,%l0);
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (jne,%l0);
-    }
-  OUTPUT_JUMP (\"jl %l0\", \"jb %l0\", \"js %l0\");
+  return AS1(j%d0,%l1);
 }")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (geu (cc0)
-			   (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "jb %l0")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (le (cc0)
-			  (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "*
-{
-  if (TARGET_IEEE_FP && (cc_prev_status.flags & CC_IN_80387)
-      && ! (cc_prev_status.flags & CC_FCOMI))
-    return AS1 (jae,%l0);
-
-  if (cc_prev_status.flags & CC_TEST_AX)
-    {
-      operands[1] = gen_rtx_REG (SImode, 0);
-      operands[2] = GEN_INT (0x4100);
-      output_asm_insn (AS2 (testl,%2,%1), operands);
-      return AS1 (je,%l0);
-    }
-  OUTPUT_JUMP (\"jg %l0\", \"ja %l0\", NULL_PTR);
-}")
-
-(define_insn ""
-  [(set (pc)
-	(if_then_else (leu (cc0)
-			   (const_int 0))
-		      (pc)
-		      (label_ref (match_operand 0 "" ""))))]
-  ""
-  "ja %l0")
 
 ;; Unconditional and other jump instructions
 
@@ -5921,7 +6357,8 @@ byte_xor_operation:
   [(set (pc)
 	(label_ref (match_operand 0 "" "")))]
   ""
-  "jmp %l0")
+  "jmp %l0"
+  [(set_attr "memory" "none")])
 
 (define_insn "indirect_jump"
   [(set (pc) (match_operand:SI 0 "nonimmediate_operand" "rm"))]
@@ -5931,7 +6368,8 @@ byte_xor_operation:
   CC_STATUS_INIT;
 
   return AS1 (jmp,%*%0);
-}")
+}"
+  [(set_attr "memory" "none")])
 
 ;; ??? could transform while(--i > 0) S; to if (--i > 0) do S; while(--i);
 ;;     if S does not change i
@@ -5952,7 +6390,7 @@ byte_xor_operation:
 (define_insn ""
   [(set (pc)
 	(if_then_else (match_operator 0 "arithmetic_comparison_operator"
-				      [(plus:SI (match_operand:SI 1 "nonimmediate_operand" "+r,m")
+				      [(plus:SI (match_operand:SI 1 "nonimmediate_operand" "+c*r,m")
 						(match_operand:SI 2 "general_operand" "rmi,ri"))
 				       (const_int 0)])
 		      (label_ref (match_operand 3 "" ""))
@@ -5964,6 +6402,11 @@ byte_xor_operation:
   "*
 {
   CC_STATUS_INIT;
+
+  if (GET_CODE (operands[1]) == REG && REGNO (operands[2]) == 2 &&
+      operands[2] == constm1_rtx && ix86_cpu == PROCESSOR_K6)
+    return \"loop %l3\";
+
   if (operands[2] == constm1_rtx)
     output_asm_insn (AS1 (dec%L1,%1), operands);
 
@@ -6228,6 +6671,12 @@ byte_xor_operation:
 {
   rtx addr;
 
+  if (operands[3] == const0_rtx)
+    {
+      emit_insn (gen_call (operands[0], operands[1]));
+      DONE;
+    }
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
 
@@ -6330,6 +6779,12 @@ byte_xor_operation:
 {
   rtx addr;
 
+  if (operands[4] == const0_rtx)
+    {
+      emit_insn (gen_call_value (operands[0], operands[1], operands[2]));
+      DONE;
+    }
+
   if (flag_pic)
     current_function_uses_pic_offset_table = 1;
 
@@ -6469,7 +6924,8 @@ byte_xor_operation:
 (define_insn "blockage"
   [(unspec_volatile [(const_int 0)] 0)]
   ""
-  "")
+  ""
+  [(set_attr "memory" "none")])
 
 ;; Insn emitted into the body of a function to return from a function.
 ;; This is only done if the function's epilogue is known to be simple.
@@ -6483,18 +6939,21 @@ byte_xor_operation:
 (define_insn "return_internal"
   [(return)]
   "reload_completed"
-  "ret")
+  "ret"
+  [(set_attr "memory" "none")])
 
 (define_insn "return_pop_internal"
   [(return)
    (use (match_operand:SI 0 "const_int_operand" ""))]
   "reload_completed"
-  "ret %0")
+  "ret %0"
+  [(set_attr "memory" "none")])
 
 (define_insn "nop"
   [(const_int 0)]
   ""
-  "nop")
+  "nop"
+  [(set_attr "memory" "none")])
 
 (define_expand "prologue"
   [(const_int 1)]
@@ -6521,7 +6980,8 @@ byte_xor_operation:
   xops[1] = stack_pointer_rtx;
   output_asm_insn (AS2 (sub%L1,%0,%1), xops);
   RET;
-}")
+}"
+  [(set_attr "memory" "none")])
 
 (define_insn "prologue_set_got"
   [(set (match_operand:SI 0 "" "")
@@ -6553,15 +7013,14 @@ byte_xor_operation:
   ""
   "*
 {
-  char buffer[64];
-
   output_asm_insn (AS1 (call,%X1), operands);
   if (! TARGET_DEEP_BRANCH_PREDICTION) 
     {
       ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, \"L\", CODE_LABEL_NUMBER (operands[1]));
     }    
   RET;
-}")
+}"
+  [(set_attr "memory" "none")])
 
 (define_insn "prologue_get_pc_and_set_got"
   [(unspec_volatile [(match_operand:SI 0 "" "")] 3)]
@@ -6573,9 +7032,10 @@ byte_xor_operation:
   ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, \"L\",
 			     CODE_LABEL_NUMBER (operands[1]));
   output_asm_insn (AS1 (pop%L0,%0), operands);
-  output_asm_insn (\"addl $_GLOBAL_OFFSET_TABLE_+[.-%X1],%0\", operands);
+  output_asm_insn (\"addl $%__GLOBAL_OFFSET_TABLE_+[.-%X1],%0\", operands);
   RET;
-}")
+}"
+  [(set_attr "memory" "none")])
 
 (define_expand "epilogue"
   [(const_int 1)]
@@ -6598,14 +7058,16 @@ byte_xor_operation:
     xops[1] = stack_pointer_rtx;
     output_asm_insn (AS2 (mov%L0,%0,%1), xops);
     RET;
-}")
+}"
+  [(set_attr "memory" "none")])
 
 (define_insn "leave"
   [(const_int 2)
       (clobber (reg:SI 6))
       (clobber (reg:SI 7))]
   ""
-  "leave")
+  "leave"
+  [(set_attr "memory" "none")])
 
 (define_insn "pop"
   [(set (match_operand:SI 0 "register_operand" "r")
@@ -6616,7 +7078,8 @@ byte_xor_operation:
 {
     output_asm_insn (AS1 (pop%L0,%P0), operands);
     RET;
-}")
+}"
+  [(set_attr "memory" "load")])
 
 (define_expand "movstrsi"
   [(parallel [(set (match_operand:BLK 0 "memory_operand" "")
@@ -6698,7 +7161,7 @@ byte_xor_operation:
   ""
   "
 {
-  rtx addr0, addr1;
+  rtx addr0;
 
   if (GET_CODE (operands[1]) != CONST_INT)
     FAIL;
@@ -6715,7 +7178,7 @@ byte_xor_operation:
 ;; But strength reduction might offset the MEM expression.  So we let
 ;; reload put the address into %edi.
 
-(define_insn ""
+(define_insn "*bzero"
   [(set (mem:BLK (match_operand:SI 0 "address_operand" "D"))
 	(const_int 0))
    (use (match_operand:SI 1 "const_int_operand" "n"))
@@ -6731,17 +7194,35 @@ byte_xor_operation:
   output_asm_insn (\"cld\", operands);
   if (GET_CODE (operands[1]) == CONST_INT)
     {
-      if (INTVAL (operands[1]) & ~0x03)
+      unsigned int count = INTVAL (operands[1]) & 0xffffffff;
+      if (count & ~0x03)
 	{
-	  xops[0] = GEN_INT ((INTVAL (operands[1]) >> 2) & 0x3fffffff);
+	  xops[0] = GEN_INT (count / 4);
 	  xops[1] = operands[4];
 
-	  output_asm_insn (AS2 (mov%L1,%0,%1), xops);
+	  /* K6: stos takes 1 cycle, rep stos takes 8 + %ecx cycles.
+	     80386: 4/5+5n (+2 for set of ecx)
+	     80486: 5/7+5n (+1 for set of ecx)
+	     */
+	  if (count / 4 < ((int) ix86_cpu < (int)PROCESSOR_PENTIUM ? 4 : 6))
+	    {
+	      do
+#ifdef INTEL_SYNTAX
+		output_asm_insn (\"stosd\", xops);
+#else
+		output_asm_insn (\"stosl\", xops);
+#endif
+	      while ((count -= 4) > 3);
+	    }
+	  else
+	    {
+	      output_asm_insn (AS2 (mov%L1,%0,%1), xops);
 #ifdef INTEL_SYNTAX
-	  output_asm_insn (\"rep stosd\", xops);
+	      output_asm_insn (\"rep stosd\", xops);
 #else
-	  output_asm_insn (\"rep\;stosl\", xops);
+	      output_asm_insn (\"rep\;stosl\", xops);
 #endif
+	    }
 	}
       if (INTVAL (operands[1]) & 0x02)
 	output_asm_insn (\"stosw\", operands);
@@ -6910,9 +7391,7 @@ byte_xor_operation:
 ;; mulM3 and divM3.  There are three patterns for each of DFmode and
 ;; SFmode.  The first is the normal insn, the second the same insn but
 ;; with one operand a conversion, and the third the same insn but with
-;; the other operand a conversion.  The conversion may be SFmode or
-;; SImode if the target mode DFmode, but only SImode if the target mode
-;; is SFmode.
+;; the other operand a conversion.
 
 (define_insn ""
   [(set (match_operand:DF 0 "register_operand" "=f,f")
@@ -6932,23 +7411,6 @@ byte_xor_operation:
   )])
 
 (define_insn ""
-  [(set (match_operand:DF 0 "register_operand" "=f")
-	(match_operator:DF 3 "binary_387_op"
-	   [(float:DF (match_operand:SI 1 "nonimmediate_operand" "rm"))
-	    (match_operand:DF 2 "register_operand" "0")]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
-
-(define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f,f")
 	(match_operator:XF 3 "binary_387_op"
 			[(match_operand:XF 1 "register_operand" "0,f")
@@ -6966,23 +7428,6 @@ byte_xor_operation:
   )])
 
 (define_insn ""
-  [(set (match_operand:XF 0 "register_operand" "=f")
-	(match_operator:XF 3 "binary_387_op"
-	   [(float:XF (match_operand:SI 1 "nonimmediate_operand" "rm"))
-	    (match_operand:XF 2 "register_operand" "0")]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
-
-(define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f,f")
 	(match_operator:XF 3 "binary_387_op"
 	   [(float_extend:XF (match_operand:SF 1 "nonimmediate_operand" "fm,0"))
@@ -7000,23 +7445,6 @@ byte_xor_operation:
   )])
 
 (define_insn ""
-  [(set (match_operand:XF 0 "register_operand" "=f")
-	(match_operator:XF 3 "binary_387_op"
-	  [(match_operand:XF 1 "register_operand" "0")
-	   (float:XF (match_operand:SI 2 "nonimmediate_operand" "rm"))]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
-
-(define_insn ""
   [(set (match_operand:XF 0 "register_operand" "=f,f")
 	(match_operator:XF 3 "binary_387_op"
 	  [(match_operand:XF 1 "register_operand" "0,f")
@@ -7052,23 +7480,6 @@ byte_xor_operation:
   )])
 
 (define_insn ""
-  [(set (match_operand:DF 0 "register_operand" "=f")
-	(match_operator:DF 3 "binary_387_op"
-	  [(match_operand:DF 1 "register_operand" "0")
-	   (float:DF (match_operand:SI 2 "nonimmediate_operand" "rm"))]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
-
-(define_insn ""
   [(set (match_operand:DF 0 "register_operand" "=f,f")
 	(match_operator:DF 3 "binary_387_op"
 	  [(match_operand:DF 1 "register_operand" "0,f")
@@ -7102,40 +7513,6 @@ byte_xor_operation:
                (const_string "fpop")
         )
   )])
-
-(define_insn ""
-  [(set (match_operand:SF 0 "register_operand" "=f")
-	(match_operator:SF 3 "binary_387_op"
-	  [(float:SF (match_operand:SI 1 "nonimmediate_operand" "rm"))
-	   (match_operand:SF 2 "register_operand" "0")]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
-
-(define_insn ""
-  [(set (match_operand:SF 0 "register_operand" "=f")
-	(match_operator:SF 3 "binary_387_op"
-	  [(match_operand:SF 1 "register_operand" "0")
-	   (float:SF (match_operand:SI 2 "nonimmediate_operand" "rm"))]))]
-  "TARGET_80387"
-  "* return output_387_binary_op (insn, operands);"
-  [(set (attr "type") 
-        (cond [(match_operand:DF 3 "is_mul" "") 
-                 (const_string "fpmul")
-               (match_operand:DF 3 "is_div" "") 
-                 (const_string "fpdiv")
-              ]
-               (const_string "fpop")
-        )
-  )])
 
 (define_expand "strlensi"
   [(parallel [(set (match_dup 4)
@@ -7258,12 +7635,12 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:SI 0 "register_operand" "=r,r")
+  [(set (match_operand:SI 0 "register_operand" "")
 	(if_then_else:SI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:SI 3 "nonimmediate_operand" "rm,0")
-		      (match_operand:SI 4 "nonimmediate_operand" "0,rm")))]
+		      (match_operand:SI 3 "nonimmediate_operand" "")
+		      (match_operand:SI 4 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
@@ -7273,12 +7650,12 @@ byte_xor_operation:
   "")
 
 (define_split
-  [(set (match_operand:SI 0 "register_operand" "=r,r")
+  [(set (match_operand:SI 0 "register_operand" "")
 	(if_then_else:SI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:SI 4 "nonimmediate_operand" "rm,0")
-		      (match_operand:SI 5 "nonimmediate_operand" "0,rm")))]
+		      (match_operand:SI 4 "nonimmediate_operand" "")
+		      (match_operand:SI 5 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0) (compare (match_dup 2) (match_dup 3)))
    (set (match_dup 0)
@@ -7332,12 +7709,12 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:HI 0 "register_operand" "=r,r")
+  [(set (match_operand:HI 0 "register_operand" "")
 	(if_then_else:HI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:HI 3 "nonimmediate_operand" "rm,0")
-		      (match_operand:HI 4 "nonimmediate_operand" "0,rm")))]
+		      (match_operand:HI 3 "nonimmediate_operand" "")
+		      (match_operand:HI 4 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
@@ -7347,12 +7724,12 @@ byte_xor_operation:
   "")
 
 (define_split
-  [(set (match_operand:HI 0 "register_operand" "=r,r")
+  [(set (match_operand:HI 0 "register_operand" "")
 	(if_then_else:HI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:HI 4 "nonimmediate_operand" "rm,0")
-		      (match_operand:HI 5 "nonimmediate_operand" "0,rm")))]
+		      (match_operand:HI 4 "nonimmediate_operand" "")
+		      (match_operand:HI 5 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(compare (match_dup 2) (match_dup 3)))
@@ -7435,12 +7812,12 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:SF 0 "register_operand" "=f,f")
+  [(set (match_operand:SF 0 "register_operand" "")
 	(if_then_else:SF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:SF 3 "register_operand" "f,0")
-		      (match_operand:SF 4 "register_operand" "0,f")))]
+		      (match_operand:SF 3 "register_operand" "")
+		      (match_operand:SF 4 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
@@ -7450,12 +7827,12 @@ byte_xor_operation:
   "")
 
 (define_split
-  [(set (match_operand:SF 0 "register_operand" "=f,f")
+  [(set (match_operand:SF 0 "register_operand" "")
 	(if_then_else:SF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:SF 4 "register_operand" "f,0")
-		      (match_operand:SF 5 "register_operand" "0,f")))]
+		      (match_operand:SF 4 "register_operand" "")
+		      (match_operand:SF 5 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0) (compare (match_dup 2) (match_dup 3)))
    (set (match_dup 0)
@@ -7537,12 +7914,12 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:DF 0 "register_operand" "=f,f")
+  [(set (match_operand:DF 0 "register_operand" "")
 	(if_then_else:DF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:DF 3 "register_operand" "f,0")
-		      (match_operand:DF 4 "register_operand" "0,f")))]
+		      (match_operand:DF 3 "register_operand" "")
+		      (match_operand:DF 4 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
@@ -7552,12 +7929,12 @@ byte_xor_operation:
   "")
 
 (define_split
-  [(set (match_operand:DF 0 "register_operand" "=f,f")
+  [(set (match_operand:DF 0 "register_operand" "")
 	(if_then_else:DF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:DF 4 "register_operand" "f,0")
-		      (match_operand:DF 5 "register_operand" "0,f")))]
+		      (match_operand:DF 4 "register_operand" "")
+		      (match_operand:DF 5 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0) (compare (match_dup 2) (match_dup 3)))
    (set (match_dup 0)
@@ -7639,12 +8016,12 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:XF 0 "register_operand" "=f,f")
+  [(set (match_operand:XF 0 "register_operand" "")
 	(if_then_else:XF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:XF 3 "register_operand" "f,0")
-		      (match_operand:XF 4 "register_operand" "0,f")))]
+		      (match_operand:XF 3 "register_operand" "")
+		      (match_operand:XF 4 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
@@ -7654,12 +8031,12 @@ byte_xor_operation:
   "")
 
 (define_split
-  [(set (match_operand:XF 0 "register_operand" "=f,f")
+  [(set (match_operand:XF 0 "register_operand" "")
 	(if_then_else:XF (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:XF 4 "register_operand" "f,0")
-		      (match_operand:XF 5 "register_operand" "0,f")))]
+		      (match_operand:XF 4 "register_operand" "")
+		      (match_operand:XF 5 "register_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0) (compare (match_dup 2) (match_dup 3)))
    (set (match_dup 0)
@@ -7713,42 +8090,43 @@ byte_xor_operation:
   "#")
 
 (define_split
-  [(set (match_operand:DI 0 "register_operand" "=&r,&r")
+  [(set (match_operand:DI 0 "register_operand" "")
 	(if_then_else:DI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (const_int 0)])
-		      (match_operand:DI 3 "nonimmediate_operand" "ro,0")
-		      (match_operand:DI 4 "nonimmediate_operand" "0,ro")))]
+		      (match_operand:DI 3 "nonimmediate_operand" "")
+		      (match_operand:DI 4 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0)
 	(match_dup 2))
-   (set (match_dup 0)
-	(if_then_else:DI (match_op_dup 1 [(cc0) (const_int 0)])
-		      (match_dup 3) (match_dup 4)))]
-  "")
+   (set (match_dup 5)
+	(if_then_else:SI (match_op_dup 1 [(cc0) (const_int 0)])
+		      (match_dup 7) (match_dup 9)))
+   (set (match_dup 6)
+	(if_then_else:SI (match_op_dup 1 [(cc0) (const_int 0)])
+		      (match_dup 8) (match_dup 10)))]
+  "split_di (&operands[0], 1, &operands[5], &operands[6]);
+   split_di (&operands[3], 1, &operands[7], &operands[8]);
+   split_di (&operands[4], 1, &operands[9], &operands[10]);")
 
 (define_split
-  [(set (match_operand:DI 0 "register_operand" "=&r,&r")
+  [(set (match_operand:DI 0 "register_operand" "")
 	(if_then_else:DI (match_operator 1 "comparison_operator" 
 				[(match_operand 2 "nonimmediate_operand" "")
 				 (match_operand 3 "general_operand" "")])
-		      (match_operand:DI 4 "nonimmediate_operand" "ro,0")
-		      (match_operand:DI 5 "nonimmediate_operand" "0,ro")))]
+		      (match_operand:DI 4 "nonimmediate_operand" "")
+		      (match_operand:DI 5 "nonimmediate_operand" "")))]
   "TARGET_CMOVE && reload_completed"
   [(set (cc0) (compare (match_dup 2) (match_dup 3)))
-   (set (match_dup 0)
-	(if_then_else:DI (match_op_dup 1 [(cc0) (const_int 0)])
-		      (match_dup 4) (match_dup 5)))]
-  "")
-
-(define_insn ""
-  [(set (match_operand:DI 0 "register_operand" "=&r,&r")
-	(if_then_else:DI (match_operator 1 "comparison_operator" 
-				[(cc0) (const_int 0)])
-		      (match_operand:DI 2 "nonimmediate_operand" "ro,0")
-		      (match_operand:DI 3 "nonimmediate_operand" "0,ro")))]
-  "TARGET_CMOVE && reload_completed"
-  "* return output_int_conditional_move (which_alternative, operands);")
+   (set (match_dup 6)
+	(if_then_else:SI (match_op_dup 1 [(cc0) (const_int 0)])
+		      (match_dup 8) (match_dup 10)))
+   (set (match_dup 7)
+	(if_then_else:SI (match_op_dup 1 [(cc0) (const_int 0)])
+		      (match_dup 9) (match_dup 11)))]
+  "split_di (&operands[0], 1, &operands[6], &operands[7]);
+   split_di (&operands[4], 1, &operands[8], &operands[9]);
+   split_di (&operands[5], 1, &operands[10], &operands[11]);")
 
 (define_insn "strlensi_unroll"
   [(set (match_operand:SI 0 "register_operand" "=&r,&r")
@@ -7785,7 +8163,8 @@ byte_xor_operation:
    (set (reg:SI 7) (minus:SI (reg:SI 7) (match_dup 0)))
    (clobber (match_dup 0))]
   "TARGET_STACK_PROBE"
-  "* return AS1(call,__alloca);")
+  "* return AS1(call,__alloca);"
+  [(set_attr "memory" "none")])
 
 (define_expand "allocate_stack"
   [(set (match_operand:SI 0 "register_operand" "=r")