arm.md (negdi2): Use gen_negdi2_neon.

2012-04-30  Andrew Stubbs  <ams@codesourcery.com>

	* config/arm/arm.md (negdi2): Use gen_negdi2_neon.
	* config/arm/neon.md (negdi2_neon): New insn.
	Also add splitters for core and NEON registers.

From-SVN: r186984

gcc/ChangeLog

 2012-04-30  Andrew Stubbs  <ams@codesourcery.com>
 
+	* config/arm/arm.md (negdi2): Use gen_negdi2_neon.
+	* config/arm/neon.md (negdi2_neon): New insn.
+	Also add splitters for core and NEON registers.
+
+2012-04-30  Andrew Stubbs  <ams@codesourcery.com>
+
 	* config/arm/arm.c (neon_valid_immediate): Allow const_int.
 	(arm_print_operand): Add 'x' format.
 	* config/arm/constraints.md (Dn): Allow const_int.

gcc/config/arm/arm.md

@@ -4101,7 +4101,13 @@
 	 (neg:DI (match_operand:DI 1 "s_register_operand" "")))
     (clobber (reg:CC CC_REGNUM))])]
   "TARGET_EITHER"
-  ""
+  {
+    if (TARGET_NEON)
+      {
+        emit_insn (gen_negdi2_neon (operands[0], operands[1]));
+	DONE;
+      }
+  }
 )
 
 ;; The constraints here are to prevent a *partial* overlap (where %Q0 == %R1).

gcc/config/arm/neon.md

@@ -926,6 +926,45 @@
                     (const_string "neon_int_3")))]
 )
 
+(define_insn "negdi2_neon"
+  [(set (match_operand:DI 0 "s_register_operand"	 "=&w, w,r,&r")
+	(neg:DI (match_operand:DI 1 "s_register_operand" "  w, w,0, r")))
+   (clobber (match_scratch:DI 2				 "= X,&w,X, X"))
+   (clobber (reg:CC CC_REGNUM))]
+  "TARGET_NEON"
+  "#"
+  [(set_attr "length" "8")]
+)
+
+; Split negdi2_neon for vfp registers
+(define_split
+  [(set (match_operand:DI 0 "s_register_operand" "")
+	(neg:DI (match_operand:DI 1 "s_register_operand" "")))
+   (clobber (match_scratch:DI 2 ""))
+   (clobber (reg:CC CC_REGNUM))]
+  "TARGET_NEON && reload_completed && IS_VFP_REGNUM (REGNO (operands[0]))"
+  [(set (match_dup 2) (const_int 0))
+   (parallel [(set (match_dup 0) (minus:DI (match_dup 2) (match_dup 1)))
+	      (clobber (reg:CC CC_REGNUM))])]
+  {
+    if (!REG_P (operands[2]))
+      operands[2] = operands[0];
+  }
+)
+
+; Split negdi2_neon for core registers
+(define_split
+  [(set (match_operand:DI 0 "s_register_operand" "")
+	(neg:DI (match_operand:DI 1 "s_register_operand" "")))
+   (clobber (match_scratch:DI 2 ""))
+   (clobber (reg:CC CC_REGNUM))]
+  "TARGET_32BIT && reload_completed
+   && arm_general_register_operand (operands[0], DImode)"
+  [(parallel [(set (match_dup 0) (neg:DI (match_dup 1)))
+	      (clobber (reg:CC CC_REGNUM))])]
+  ""
+)
+
 (define_insn "*umin<mode>3_neon"
   [(set (match_operand:VDQIW 0 "s_register_operand" "=w")
 	(umin:VDQIW (match_operand:VDQIW 1 "s_register_operand" "w")