[NDS32] Rewrite infrastructure for intrinsic.

gcc/
	* config/nds32/nds32-intrinsic.c
	(nds32_expand_builtin_null_ftype_reg): Delete.
	(nds32_expand_builtin_reg_ftype_imm): Ditto.
	(nds32_expand_builtin_null_ftype_reg_imm): Ditto.
	(nds32_read_argument): New.
	(nds32_legitimize_target): Ditto.
	(nds32_legitimize_argument): Ditto.
	(nds32_check_constant_argument): Ditto.
	(nds32_expand_unop_builtin): Ditto.
	(nds32_expand_unopimm_builtin): Ditto.
	(nds32_expand_binop_builtin): Ditto.
	(nds32_builtin_decl_impl): Ditto.
	(builtin_description): Ditto.
	(nds32_expand_builtin_impl): Rewrite with new infrastructure.
	(nds32_init_builtins_impl): Ditto.
	* config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
	(nds32_builtin_decl): New.
	* config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
	* config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.

Co-Authored-By: Chung-Ju Wu <jasonwucj@gmail.com>
Co-Authored-By: Kito Cheng <kito.cheng@gmail.com>

From-SVN: r258211

gcc/ChangeLog

+2018-03-03  Monk Chiang  <sh.chiang04@gmail.com>
+	    Kito Cheng  <kito.cheng@gmail.com>
+	    Chung-Ju Wu  <jasonwucj@gmail.com>
+
+	* config/nds32/nds32-intrinsic.c
+	(nds32_expand_builtin_null_ftype_reg): Delete.
+	(nds32_expand_builtin_reg_ftype_imm): Ditto.
+	(nds32_expand_builtin_null_ftype_reg_imm): Ditto.
+	(nds32_read_argument): New.
+	(nds32_legitimize_target): Ditto.
+	(nds32_legitimize_argument): Ditto.
+	(nds32_check_constant_argument): Ditto.
+	(nds32_expand_unop_builtin): Ditto.
+	(nds32_expand_unopimm_builtin): Ditto.
+	(nds32_expand_binop_builtin): Ditto.
+	(nds32_builtin_decl_impl): Ditto.
+	(builtin_description): Ditto.
+	(nds32_expand_builtin_impl): Rewrite with new infrastructure.
+	(nds32_init_builtins_impl): Ditto.
+	* config/nds32/nds32.c (TARGET_BUILTIN_DECL): Define.
+	(nds32_builtin_decl): New.
+	* config/nds32/nds32.h (nds32_builtins): Add NDS32_BUILTIN_COUNT.
+	* config/nds32/nds32-protos.h (nds32_builtin_decl_impl): Declare.
+
 2018-03-02  Jeff Law  <law@redhat.com>
 
 	* reorg.c (stop_search_p): Handle DEBUG_INSN.

gcc/config/nds32/nds32-protos.h

@@ -125,6 +125,7 @@ extern int nds32_target_alignment (rtx_insn *);
 extern void nds32_init_builtins_impl (void);
 extern rtx nds32_expand_builtin_impl (tree, rtx, rtx,
 				      machine_mode, int);
+extern tree nds32_builtin_decl_impl (unsigned, bool);
 
 /* Auxiliary functions for ISR implementation.  */
 

gcc/config/nds32/nds32.c

@@ -2728,6 +2728,13 @@ nds32_init_builtins (void)
   nds32_init_builtins_impl ();
 }
 
+static tree
+nds32_builtin_decl (unsigned code, bool initialize_p)
+{
+  /* Implement in nds32-intrinsic.c.  */
+  return nds32_builtin_decl_impl (code, initialize_p);
+}
+
 static rtx
 nds32_expand_builtin (tree exp,
 		      rtx target,
@@ -3825,6 +3832,9 @@ nds32_target_alignment (rtx_insn *label)
 #undef TARGET_INIT_BUILTINS
 #define TARGET_INIT_BUILTINS nds32_init_builtins
 
+#undef  TARGET_BUILTIN_DECL
+#define TARGET_BUILTIN_DECL nds32_builtin_decl
+
 #undef TARGET_EXPAND_BUILTIN
 #define TARGET_EXPAND_BUILTIN nds32_expand_builtin
 

gcc/config/nds32/nds32.h

@@ -345,7 +345,8 @@ enum nds32_builtins
   NDS32_BUILTIN_MTSR,
   NDS32_BUILTIN_MTUSR,
   NDS32_BUILTIN_SETGIE_EN,
-  NDS32_BUILTIN_SETGIE_DIS
+  NDS32_BUILTIN_SETGIE_DIS,
+  NDS32_BUILTIN_COUNT
 };
 
 /* ------------------------------------------------------------------------ */