llvm-gcc-4.0/gcc/java/builtins.c - llvm-archive - Git at Google

 /* Built-in and inline functions for gcj
    Copyright (C) 2001, 2003, 2004, 2005
    Free Software Foundation, Inc.

 This file is part of GCC.

 GCC is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2, or (at your option)
 any later version.

 GCC is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.

 Java and all Java-based marks are trademarks or registered trademarks
 of Sun Microsystems, Inc. in the United States and other countries.
 The Free Software Foundation is independent of Sun Microsystems, Inc.  */

 /* Written by Tom Tromey <tromey@redhat.com>.  */

 #include "config.h"
 #include "system.h"
 #include "coretypes.h"
 #include "tm.h"
 #include "tree.h"
 #include "ggc.h"
 #include "flags.h"
 #include "langhooks.h"
 #include "java-tree.h"


 static tree max_builtin (tree, tree);
 static tree min_builtin (tree, tree);
 static tree abs_builtin (tree, tree);

 static tree java_build_function_call_expr (tree, tree);
 static void define_builtin (enum built_in_function, const char *,
 			    tree, const char *);


 /* Functions of this type are used to inline a given call.  Such a
    function should either return an expression, if the call is to be
    inlined, or NULL_TREE if a real call should be emitted.  Arguments
    are method return type and arguments to call.  */
 typedef tree builtin_creator_function (tree, tree);

 /* Hold a char*, before initialization, or a tree, after
    initialization.  */
 union string_or_tree GTY(())
 {
   const char * GTY ((tag ("0"))) s;
   tree GTY ((tag ("1"))) t;
 };

 /* Used to hold a single builtin record.  */
 struct builtin_record GTY(())
 {
   union string_or_tree GTY ((desc ("1"))) class_name;
   union string_or_tree GTY ((desc ("1"))) method_name;
   builtin_creator_function * GTY((skip)) creator;
   enum built_in_function builtin_code;
 };

 static GTY(()) struct builtin_record java_builtins[] =
 {
   { { "java.lang.Math" }, { "min" }, min_builtin, 0 },
   { { "java.lang.Math" }, { "max" }, max_builtin, 0 },
   { { "java.lang.Math" }, { "abs" }, abs_builtin, 0 },
   { { "java.lang.Math" }, { "acos" }, NULL, BUILT_IN_ACOS },
   { { "java.lang.Math" }, { "asin" }, NULL, BUILT_IN_ASIN },
   { { "java.lang.Math" }, { "atan" }, NULL, BUILT_IN_ATAN },
   { { "java.lang.Math" }, { "atan2" }, NULL, BUILT_IN_ATAN2 },
   { { "java.lang.Math" }, { "ceil" }, NULL, BUILT_IN_CEIL },
   { { "java.lang.Math" }, { "cos" }, NULL, BUILT_IN_COS },
   { { "java.lang.Math" }, { "exp" }, NULL, BUILT_IN_EXP },
   { { "java.lang.Math" }, { "floor" }, NULL, BUILT_IN_FLOOR },
   { { "java.lang.Math" }, { "log" }, NULL, BUILT_IN_LOG },
   { { "java.lang.Math" }, { "pow" }, NULL, BUILT_IN_POW },
   { { "java.lang.Math" }, { "sin" }, NULL, BUILT_IN_SIN },
   { { "java.lang.Math" }, { "sqrt" }, NULL, BUILT_IN_SQRT },
   { { "java.lang.Math" }, { "tan" }, NULL, BUILT_IN_TAN },
   { { NULL }, { NULL }, NULL, END_BUILTINS }
 };


 /* Internal functions which implement various builtin conversions.  */

 static tree
 max_builtin (tree method_return_type, tree method_arguments)
 {
   return fold (build2 (MAX_EXPR, method_return_type,
 		       TREE_VALUE (method_arguments),
 		       TREE_VALUE (TREE_CHAIN (method_arguments))));
 }

 static tree
 min_builtin (tree method_return_type, tree method_arguments)
 {
   return fold (build2 (MIN_EXPR, method_return_type,
 		       TREE_VALUE (method_arguments),
 		       TREE_VALUE (TREE_CHAIN (method_arguments))));
 }

 static tree
 abs_builtin (tree method_return_type, tree method_arguments)
 {
   return fold (build1 (ABS_EXPR, method_return_type,
 		       TREE_VALUE (method_arguments)));
 }

 /* Mostly copied from ../builtins.c.  */
 static tree
 java_build_function_call_expr (tree fn, tree arglist)
 {
   tree call_expr;

   call_expr = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (fn)), fn);
   call_expr = build3 (CALL_EXPR, TREE_TYPE (TREE_TYPE (fn)),
 		      call_expr, arglist, NULL_TREE);
   TREE_SIDE_EFFECTS (call_expr) = 1;
   return fold (call_expr);
 }


 /* Define a single builtin.  */
 static void
 define_builtin (enum built_in_function val,
 		const char *name,
 		tree type,
 		const char *libname)
 {
   tree decl;

   decl = build_decl (FUNCTION_DECL, get_identifier (name), type);
   DECL_EXTERNAL (decl) = 1;
   TREE_PUBLIC (decl) = 1;
   SET_DECL_ASSEMBLER_NAME (decl, get_identifier (libname));
   make_decl_rtl (decl);
   pushdecl (decl);
   DECL_BUILT_IN_CLASS (decl) = BUILT_IN_NORMAL;
   DECL_FUNCTION_CODE (decl) = val;

   implicit_built_in_decls[val] = decl;
   built_in_decls[val] = decl;
 }


 /* Initialize the builtins.  */
 void
 initialize_builtins (void)
 {
   tree double_ftype_double, double_ftype_double_double;
   tree float_ftype_float, float_ftype_float_float;
   /* APPLE LOCAL lno */
   tree void_ftype;
   tree boolean_ftype_boolean_boolean;
   tree t;
   int i;

   for (i = 0; java_builtins[i].builtin_code != END_BUILTINS; ++i)
     {
       tree klass_id = get_identifier (java_builtins[i].class_name.s);
       tree m = get_identifier (java_builtins[i].method_name.s);

       java_builtins[i].class_name.t = klass_id;
       java_builtins[i].method_name.t = m;
     }

   void_list_node = end_params_node;

   t = tree_cons (NULL_TREE, float_type_node, end_params_node);
   float_ftype_float = build_function_type (float_type_node, t);
   t = tree_cons (NULL_TREE, float_type_node, t);
   float_ftype_float_float = build_function_type (float_type_node, t);

   t = tree_cons (NULL_TREE, double_type_node, end_params_node);
   double_ftype_double = build_function_type (double_type_node, t);
   t = tree_cons (NULL_TREE, double_type_node, t);
   double_ftype_double_double = build_function_type (double_type_node, t);

   /* APPLE LOCAL begin lno */
   void_ftype = build_function_type (void_type_node, NULL_TREE);
   /* APPLE LOCAL end lno */

   define_builtin (BUILT_IN_FMOD, "__builtin_fmod",
 		  double_ftype_double_double, "fmod");
   define_builtin (BUILT_IN_FMODF, "__builtin_fmodf",
 		  float_ftype_float_float, "fmodf");

   define_builtin (BUILT_IN_ACOS, "__builtin_acos",
 		  double_ftype_double, "_ZN4java4lang4Math4acosEd");
   define_builtin (BUILT_IN_ASIN, "__builtin_asin",
 		  double_ftype_double, "_ZN4java4lang4Math4asinEd");
   define_builtin (BUILT_IN_ATAN, "__builtin_atan",
 		  double_ftype_double, "_ZN4java4lang4Math4atanEd");
   define_builtin (BUILT_IN_ATAN2, "__builtin_atan2",
 		  double_ftype_double_double, "_ZN4java4lang4Math5atan2Edd");
   define_builtin (BUILT_IN_CEIL, "__builtin_ceil",
 		  double_ftype_double, "_ZN4java4lang4Math4ceilEd");
   define_builtin (BUILT_IN_COS, "__builtin_cos",
 		  double_ftype_double, "_ZN4java4lang4Math3cosEd");
   define_builtin (BUILT_IN_EXP, "__builtin_exp",
 		  double_ftype_double, "_ZN4java4lang4Math3expEd");
   define_builtin (BUILT_IN_FLOOR, "__builtin_floor",
 		  double_ftype_double, "_ZN4java4lang4Math5floorEd");
   define_builtin (BUILT_IN_LOG, "__builtin_log",
 		  double_ftype_double, "_ZN4java4lang4Math3logEd");
   define_builtin (BUILT_IN_POW, "__builtin_pow",
 		  double_ftype_double_double, "_ZN4java4lang4Math3powEdd");
   define_builtin (BUILT_IN_SIN, "__builtin_sin",
 		  double_ftype_double, "_ZN4java4lang4Math3sinEd");
   define_builtin (BUILT_IN_SQRT, "__builtin_sqrt",
 		  double_ftype_double, "_ZN4java4lang4Math4sqrtEd");
   define_builtin (BUILT_IN_TAN, "__builtin_tan",
 		  double_ftype_double, "_ZN4java4lang4Math3tanEd");
   /* APPLE LOCAL begin lno */
   define_builtin (BUILT_IN_MAYBE_INFINITE_LOOP, "__builtin_maybe_infinite_loop",
 		  void_ftype, "__builtin_maybe_infinite_loop");
   /* APPLE LOCAL end lno */

   t = tree_cons (NULL_TREE, boolean_type_node, end_params_node);
   t = tree_cons (NULL_TREE, boolean_type_node, t);
   boolean_ftype_boolean_boolean = build_function_type (boolean_type_node, t);
   define_builtin (BUILT_IN_EXPECT, "__builtin_expect",
 		  boolean_ftype_boolean_boolean,
 		  "__builtin_expect");

   build_common_builtin_nodes ();
 }

 /* If the call matches a builtin, return the
    appropriate builtin expression instead.  */
 tree
 check_for_builtin (tree method, tree call)
 {
   if (! flag_emit_class_files && optimize && TREE_CODE (call) == CALL_EXPR)
     {
       int i;
       tree method_arguments = TREE_OPERAND (call, 1);
       tree method_class = DECL_NAME (TYPE_NAME (DECL_CONTEXT (method)));
       tree method_name = DECL_NAME (method);
       tree method_return_type = TREE_TYPE (TREE_TYPE (method));

       for (i = 0; java_builtins[i].builtin_code != END_BUILTINS; ++i)
 	{
 	  if (method_class == java_builtins[i].class_name.t
 	      && method_name == java_builtins[i].method_name.t)
 	    {
 	      tree fn;

 	      if (java_builtins[i].creator != NULL)
 		return (*java_builtins[i].creator) (method_return_type,
 						    method_arguments);
 	      fn = built_in_decls[java_builtins[i].builtin_code];
 	      if (fn == NULL_TREE)
 		return NULL_TREE;
 	      return java_build_function_call_expr (fn, method_arguments);
 	    }
 	}
     }
   return call;
 }

 #include "gt-java-builtins.h"
	/* Built-in and inline functions for gcj
	Copyright (C) 2001, 2003, 2004, 2005
	Free Software Foundation, Inc.

	This file is part of GCC.

	GCC is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation; either version 2, or (at your option)
	any later version.

	GCC is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with GCC; see the file COPYING. If not, write to
	the Free Software Foundation, 59 Temple Place - Suite 330,
	Boston, MA 02111-1307, USA.

	Java and all Java-based marks are trademarks or registered trademarks
	of Sun Microsystems, Inc. in the United States and other countries.
	The Free Software Foundation is independent of Sun Microsystems, Inc. */

	/* Written by Tom Tromey <tromey@redhat.com>. */

	#include "config.h"
	#include "system.h"
	#include "coretypes.h"
	#include "tm.h"
	#include "tree.h"
	#include "ggc.h"
	#include "flags.h"
	#include "langhooks.h"
	#include "java-tree.h"


	static tree max_builtin (tree, tree);
	static tree min_builtin (tree, tree);
	static tree abs_builtin (tree, tree);

	static tree java_build_function_call_expr (tree, tree);
	static void define_builtin (enum built_in_function, const char *,
	tree, const char *);



	/* Functions of this type are used to inline a given call. Such a
	function should either return an expression, if the call is to be
	inlined, or NULL_TREE if a real call should be emitted. Arguments
	are method return type and arguments to call. */
	typedef tree builtin_creator_function (tree, tree);

	/* Hold a char*, before initialization, or a tree, after
	initialization. */
	union string_or_tree GTY(())
	{
	const char * GTY ((tag ("0"))) s;
	tree GTY ((tag ("1"))) t;
	};

	/* Used to hold a single builtin record. */
	struct builtin_record GTY(())
	{
	union string_or_tree GTY ((desc ("1"))) class_name;
	union string_or_tree GTY ((desc ("1"))) method_name;
	builtin_creator_function * GTY((skip)) creator;
	enum built_in_function builtin_code;
	};

	static GTY(()) struct builtin_record java_builtins[] =
	{
	{ { "java.lang.Math" }, { "min" }, min_builtin, 0 },
	{ { "java.lang.Math" }, { "max" }, max_builtin, 0 },
	{ { "java.lang.Math" }, { "abs" }, abs_builtin, 0 },
	{ { "java.lang.Math" }, { "acos" }, NULL, BUILT_IN_ACOS },
	{ { "java.lang.Math" }, { "asin" }, NULL, BUILT_IN_ASIN },
	{ { "java.lang.Math" }, { "atan" }, NULL, BUILT_IN_ATAN },
	{ { "java.lang.Math" }, { "atan2" }, NULL, BUILT_IN_ATAN2 },
	{ { "java.lang.Math" }, { "ceil" }, NULL, BUILT_IN_CEIL },
	{ { "java.lang.Math" }, { "cos" }, NULL, BUILT_IN_COS },
	{ { "java.lang.Math" }, { "exp" }, NULL, BUILT_IN_EXP },
	{ { "java.lang.Math" }, { "floor" }, NULL, BUILT_IN_FLOOR },
	{ { "java.lang.Math" }, { "log" }, NULL, BUILT_IN_LOG },
	{ { "java.lang.Math" }, { "pow" }, NULL, BUILT_IN_POW },
	{ { "java.lang.Math" }, { "sin" }, NULL, BUILT_IN_SIN },
	{ { "java.lang.Math" }, { "sqrt" }, NULL, BUILT_IN_SQRT },
	{ { "java.lang.Math" }, { "tan" }, NULL, BUILT_IN_TAN },
	{ { NULL }, { NULL }, NULL, END_BUILTINS }
	};


	/* Internal functions which implement various builtin conversions. */

	static tree
	max_builtin (tree method_return_type, tree method_arguments)
	{
	return fold (build2 (MAX_EXPR, method_return_type,
	TREE_VALUE (method_arguments),
	TREE_VALUE (TREE_CHAIN (method_arguments))));
	}

	static tree
	min_builtin (tree method_return_type, tree method_arguments)
	{
	return fold (build2 (MIN_EXPR, method_return_type,
	TREE_VALUE (method_arguments),
	TREE_VALUE (TREE_CHAIN (method_arguments))));
	}

	static tree
	abs_builtin (tree method_return_type, tree method_arguments)
	{
	return fold (build1 (ABS_EXPR, method_return_type,
	TREE_VALUE (method_arguments)));
	}

	/* Mostly copied from ../builtins.c. */
	static tree
	java_build_function_call_expr (tree fn, tree arglist)
	{
	tree call_expr;

	call_expr = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (fn)), fn);
	call_expr = build3 (CALL_EXPR, TREE_TYPE (TREE_TYPE (fn)),
	call_expr, arglist, NULL_TREE);
	TREE_SIDE_EFFECTS (call_expr) = 1;
	return fold (call_expr);
	}



	/* Define a single builtin. */
	static void
	define_builtin (enum built_in_function val,
	const char *name,
	tree type,
	const char *libname)
	{
	tree decl;

	decl = build_decl (FUNCTION_DECL, get_identifier (name), type);
	DECL_EXTERNAL (decl) = 1;
	TREE_PUBLIC (decl) = 1;
	SET_DECL_ASSEMBLER_NAME (decl, get_identifier (libname));
	make_decl_rtl (decl);
	pushdecl (decl);
	DECL_BUILT_IN_CLASS (decl) = BUILT_IN_NORMAL;
	DECL_FUNCTION_CODE (decl) = val;

	implicit_built_in_decls[val] = decl;
	built_in_decls[val] = decl;
	}



	/* Initialize the builtins. */
	void
	initialize_builtins (void)
	{
	tree double_ftype_double, double_ftype_double_double;
	tree float_ftype_float, float_ftype_float_float;
	/* APPLE LOCAL lno */
	tree void_ftype;
	tree boolean_ftype_boolean_boolean;
	tree t;
	int i;

	for (i = 0; java_builtins[i].builtin_code != END_BUILTINS; ++i)
	{
	tree klass_id = get_identifier (java_builtins[i].class_name.s);
	tree m = get_identifier (java_builtins[i].method_name.s);

	java_builtins[i].class_name.t = klass_id;
	java_builtins[i].method_name.t = m;
	}

	void_list_node = end_params_node;

	t = tree_cons (NULL_TREE, float_type_node, end_params_node);
	float_ftype_float = build_function_type (float_type_node, t);
	t = tree_cons (NULL_TREE, float_type_node, t);
	float_ftype_float_float = build_function_type (float_type_node, t);

	t = tree_cons (NULL_TREE, double_type_node, end_params_node);
	double_ftype_double = build_function_type (double_type_node, t);
	t = tree_cons (NULL_TREE, double_type_node, t);
	double_ftype_double_double = build_function_type (double_type_node, t);

	/* APPLE LOCAL begin lno */
	void_ftype = build_function_type (void_type_node, NULL_TREE);
	/* APPLE LOCAL end lno */

	define_builtin (BUILT_IN_FMOD, "__builtin_fmod",
	double_ftype_double_double, "fmod");
	define_builtin (BUILT_IN_FMODF, "__builtin_fmodf",
	float_ftype_float_float, "fmodf");

	define_builtin (BUILT_IN_ACOS, "__builtin_acos",
	double_ftype_double, "_ZN4java4lang4Math4acosEd");
	define_builtin (BUILT_IN_ASIN, "__builtin_asin",
	double_ftype_double, "_ZN4java4lang4Math4asinEd");
	define_builtin (BUILT_IN_ATAN, "__builtin_atan",
	double_ftype_double, "_ZN4java4lang4Math4atanEd");
	define_builtin (BUILT_IN_ATAN2, "__builtin_atan2",
	double_ftype_double_double, "_ZN4java4lang4Math5atan2Edd");
	define_builtin (BUILT_IN_CEIL, "__builtin_ceil",
	double_ftype_double, "_ZN4java4lang4Math4ceilEd");
	define_builtin (BUILT_IN_COS, "__builtin_cos",
	double_ftype_double, "_ZN4java4lang4Math3cosEd");
	define_builtin (BUILT_IN_EXP, "__builtin_exp",
	double_ftype_double, "_ZN4java4lang4Math3expEd");
	define_builtin (BUILT_IN_FLOOR, "__builtin_floor",
	double_ftype_double, "_ZN4java4lang4Math5floorEd");
	define_builtin (BUILT_IN_LOG, "__builtin_log",
	double_ftype_double, "_ZN4java4lang4Math3logEd");
	define_builtin (BUILT_IN_POW, "__builtin_pow",
	double_ftype_double_double, "_ZN4java4lang4Math3powEdd");
	define_builtin (BUILT_IN_SIN, "__builtin_sin",
	double_ftype_double, "_ZN4java4lang4Math3sinEd");
	define_builtin (BUILT_IN_SQRT, "__builtin_sqrt",
	double_ftype_double, "_ZN4java4lang4Math4sqrtEd");
	define_builtin (BUILT_IN_TAN, "__builtin_tan",
	double_ftype_double, "_ZN4java4lang4Math3tanEd");
	/* APPLE LOCAL begin lno */
	define_builtin (BUILT_IN_MAYBE_INFINITE_LOOP, "__builtin_maybe_infinite_loop",
	void_ftype, "__builtin_maybe_infinite_loop");
	/* APPLE LOCAL end lno */

	t = tree_cons (NULL_TREE, boolean_type_node, end_params_node);
	t = tree_cons (NULL_TREE, boolean_type_node, t);
	boolean_ftype_boolean_boolean = build_function_type (boolean_type_node, t);
	define_builtin (BUILT_IN_EXPECT, "__builtin_expect",
	boolean_ftype_boolean_boolean,
	"__builtin_expect");

	build_common_builtin_nodes ();
	}

	/* If the call matches a builtin, return the
	appropriate builtin expression instead. */
	tree
	check_for_builtin (tree method, tree call)
	{
	if (! flag_emit_class_files && optimize && TREE_CODE (call) == CALL_EXPR)
	{
	int i;
	tree method_arguments = TREE_OPERAND (call, 1);
	tree method_class = DECL_NAME (TYPE_NAME (DECL_CONTEXT (method)));
	tree method_name = DECL_NAME (method);
	tree method_return_type = TREE_TYPE (TREE_TYPE (method));

	for (i = 0; java_builtins[i].builtin_code != END_BUILTINS; ++i)
	{
	if (method_class == java_builtins[i].class_name.t
	&& method_name == java_builtins[i].method_name.t)
	{
	tree fn;

	if (java_builtins[i].creator != NULL)
	return (*java_builtins[i].creator) (method_return_type,
	method_arguments);
	fn = built_in_decls[java_builtins[i].builtin_code];
	if (fn == NULL_TREE)
	return NULL_TREE;
	return java_build_function_call_expr (fn, method_arguments);
	}
	}
	}
	return call;
	}

	#include "gt-java-builtins.h"