decl.c (java_init_decl_processing): Use add_predefined_file.

	* decl.c (java_init_decl_processing): Use add_predefined_file.
	Predefine RawData.java.
	(predef_filenames): Removed.
	(java_init_decl_processing): Don't register predef_filenames.
	* jcf-parse.c (add_predefined_file): New function.
	(predefined_filename_p): Rewrote.
	(predefined_filename_p): No longer static.
	* decl.c (java_init_decl_processing): Call initialize_builtins.
	* Make-lang.in (JAVA_OBJS): Added builtins.o.
	(java/builtins.o): New target.
	* builtins.c: New file.
	* parse.y (patch_invoke): Use build_call_or_builtin.
	* java-tree.h (build_call_or_builtin): Declare.
	(initialize_builtins): Declare.
	(java_set_exception_lang_code): Removed unused declaration.
	(PREDEF_FILENAMES_SIZE): Removed.
	(java_tree_index): Added JTI_PREDEF_FILENAMES.
	(predef_filenames): New define.
	(add_predefined_file): Declare.
	(predefined_filename_p): Declare.
	* expr.c (expand_invoke): Use build_call_or_builtin.

From-SVN: r49091

1 files changed, 365 insertions, 0 deletions

diff --git a/gcc/java/builtins.c b/gcc/java/builtins.c
new file mode 100644
index 00000000000..24498596375
--- /dev/null
+++ b/gcc/java/builtins.c
@@ -0,0 +1,365 @@
+/* Built-in and inline functions for gcj
+   Copyright (C) 2001
+   Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC 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.
+
+GNU CC 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 GNU CC; 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 "tree.h"
+#include "ggc.h"
+#include "flags.h"
+
+#include "java-tree.h"
+
+enum builtin_type 
+{
+#define DEF_PRIMITIVE_TYPE(NAME, VALUE) NAME,
+#define DEF_FUNCTION_TYPE_0(NAME, RETURN) NAME,
+#define DEF_FUNCTION_TYPE_1(NAME, RETURN, ARG1) NAME,
+#define DEF_FUNCTION_TYPE_2(NAME, RETURN, ARG1, ARG2) NAME,
+#define DEF_FUNCTION_TYPE_3(NAME, RETURN, ARG1, ARG2, ARG3) NAME,
+#define DEF_FUNCTION_TYPE_4(NAME, RETURN, ARG1, ARG2, ARG3, ARG4) NAME,
+#define DEF_FUNCTION_TYPE_VAR_0(NAME, RETURN) NAME,
+#define DEF_FUNCTION_TYPE_VAR_1(NAME, RETURN, ARG1) NAME,
+#define DEF_FUNCTION_TYPE_VAR_2(NAME, RETURN, ARG1, ARG2) NAME,
+#define DEF_POINTER_TYPE(NAME, TYPE) NAME,
+#include "builtin-types.def"
+#undef DEF_PRIMITIVE_TYPE
+#undef DEF_FUNCTION_TYPE_0
+#undef DEF_FUNCTION_TYPE_1
+#undef DEF_FUNCTION_TYPE_2
+#undef DEF_FUNCTION_TYPE_3
+#undef DEF_FUNCTION_TYPE_4
+#undef DEF_FUNCTION_TYPE_VAR_0
+#undef DEF_FUNCTION_TYPE_VAR_1
+#undef DEF_FUNCTION_TYPE_VAR_2
+#undef DEF_POINTER_TYPE
+  BT_LAST
+};
+
+static tree max_builtin PARAMS ((tree, tree));
+static tree min_builtin PARAMS ((tree, tree));
+static tree abs_builtin PARAMS ((tree, tree));
+static tree cos_builtin PARAMS ((tree, tree));
+static tree sin_builtin PARAMS ((tree, tree));
+static tree sqrt_builtin PARAMS ((tree, tree));
+
+static tree build_function_call_expr PARAMS ((tree, tree));
+static void define_builtin PARAMS ((enum built_in_function,
+				    const char *,
+				    enum built_in_class,
+				    tree, int));
+static tree define_builtin_type PARAMS ((int, int, int, int, int));
+
+
+
+/* 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 PARAMS ((tree, tree));
+
+/* Hold a char*, before initialization, or a tree, after
+   initialization.  */
+union string_or_tree
+{
+  const char *s;
+  tree t;
+};
+
+/* Used to hold a single builtin record.  */
+struct builtin_record
+{
+  union string_or_tree class_name;
+  union string_or_tree method_name;
+  builtin_creator_function *creator;
+};
+
+static struct builtin_record java_builtins[] =
+{
+  { { "java.lang.Math" }, { "min" }, min_builtin },
+  { { "java.lang.Math" }, { "max" }, max_builtin },
+  { { "java.lang.Math" }, { "abs" }, abs_builtin },
+  { { "java.lang.Math" }, { "cos" }, cos_builtin },
+  { { "java.lang.Math" }, { "sin" }, sin_builtin },
+  { { "java.lang.Math" }, { "sqrt" }, sqrt_builtin },
+  { { NULL }, { NULL }, NULL }
+};
+
+/* This is only used transiently, so we don't mark it as roots for the
+   GC.  */
+static tree builtin_types[(int) BT_LAST];
+
+
+/* Internal functions which implement various builtin conversions.  */
+
+static tree
+max_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  return build (MAX_EXPR, method_return_type,
+		TREE_VALUE (method_arguments),
+		TREE_VALUE (TREE_CHAIN (method_arguments)));
+}
+
+static tree
+min_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  return build (MIN_EXPR, method_return_type,
+		TREE_VALUE (method_arguments),
+		TREE_VALUE (TREE_CHAIN (method_arguments)));
+}
+
+static tree
+abs_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  return build1 (ABS_EXPR, method_return_type,
+		 TREE_VALUE (method_arguments));
+}
+
+/* Mostly copied from ../builtins.c.  */
+static tree
+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 = build (CALL_EXPR, TREE_TYPE (TREE_TYPE (fn)),
+		     call_expr, arglist);
+  TREE_SIDE_EFFECTS (call_expr) = 1;
+  return call_expr;
+}
+
+static tree
+cos_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  /* FIXME: this assumes that jdouble and double are the same.  */
+  tree fn = built_in_decls[BUILT_IN_COS];
+  if (fn == NULL_TREE)
+    return NULL_TREE;
+  return build_function_call_expr (fn, method_arguments);
+}
+
+static tree
+sin_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  /* FIXME: this assumes that jdouble and double are the same.  */
+  tree fn = built_in_decls[BUILT_IN_SIN];
+  if (fn == NULL_TREE)
+    return NULL_TREE;
+  return build_function_call_expr (fn, method_arguments);
+}
+
+static tree
+sqrt_builtin (method_return_type, method_arguments)
+     tree method_return_type, method_arguments;
+{
+  /* FIXME: this assumes that jdouble and double are the same.  */
+  tree fn = built_in_decls[BUILT_IN_SQRTF];
+  if (fn == NULL_TREE)
+    return NULL_TREE;
+  return build_function_call_expr (fn, method_arguments);
+}
+
+
+
+/* Define a single builtin.  */
+static void
+define_builtin (val, name, class, type, fallback_p)
+     enum built_in_function val;
+     const char *name;
+     enum built_in_class class;
+     tree type;
+     int fallback_p;
+{
+  tree decl;
+
+  if (! name)
+    return;
+
+  if (strncmp (name, "__builtin_", strlen ("__builtin_")) != 0)
+    abort ();
+  decl = build_decl (FUNCTION_DECL, get_identifier (name), type);
+  DECL_EXTERNAL (decl) = 1;
+  TREE_PUBLIC (decl) = 1;
+  if (fallback_p)
+    SET_DECL_ASSEMBLER_NAME (decl,
+			     get_identifier (name + strlen ("__builtin_")));
+  make_decl_rtl (decl, NULL);
+  pushdecl (decl);
+  DECL_BUILT_IN_CLASS (decl) = class;
+  DECL_FUNCTION_CODE (decl) = val;
+  built_in_decls[val] = decl;
+}
+
+/* Compute the type for a builtin.  */
+static tree
+define_builtin_type (ret, arg1, arg2, arg3, arg4)
+     int ret, arg1, arg2, arg3, arg4;
+{
+  tree args;
+
+  if (builtin_types[ret] == NULL_TREE)
+    return NULL_TREE;
+
+  args = void_list_node;
+
+  if (arg4 != -1)
+    {
+      if (builtin_types[arg4] == NULL_TREE)
+	return NULL_TREE;
+      args = tree_cons (NULL_TREE, builtin_types[arg4], args);
+    }
+  if (arg3 != -1)
+    {
+      if (builtin_types[arg3] == NULL_TREE)
+	return NULL_TREE;
+      args = tree_cons (NULL_TREE, builtin_types[arg3], args);
+    }
+  if (arg2 != -1)
+    {
+      if (builtin_types[arg2] == NULL_TREE)
+	return NULL_TREE;
+      args = tree_cons (NULL_TREE, builtin_types[arg2], args);
+    }
+  if (arg1 != -1)
+    {
+      if (builtin_types[arg1] == NULL_TREE)
+	return NULL_TREE;
+      args = tree_cons (NULL_TREE, builtin_types[arg1], args);
+    }
+  
+  return build_function_type (builtin_types[ret], args);
+}
+
+
+
+/* Initialize the builtins.  */
+void
+initialize_builtins ()
+{
+  int i;
+
+  for (i = 0; java_builtins[i].creator != NULL; ++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;
+      ggc_add_tree_root (&java_builtins[i].class_name.t, 1);
+      ggc_add_tree_root (&java_builtins[i].method_name.t, 1);
+    }
+
+  void_list_node = end_params_node;
+
+  /* Work around C-specific junk in builtin-types.def.  */
+#define intmax_type_node NULL_TREE
+#define traditional_ptr_type_node NULL_TREE
+#define traditional_cptr_type_node NULL_TREE
+#define c_size_type_node NULL_TREE
+#define const_string_type_node NULL_TREE
+#define traditional_len_type_node NULL_TREE
+#define va_list_ref_type_node NULL_TREE
+#define va_list_arg_type_node NULL_TREE
+#define flag_isoc99 0
+
+#define DEF_PRIMITIVE_TYPE(ENUM, VALUE)					      \
+  builtin_types[(int) ENUM] = VALUE;
+#define DEF_FUNCTION_TYPE_0(ENUM, RETURN)		\
+  builtin_types[(int) ENUM]				\
+    = define_builtin_type (RETURN, -1, -1, -1, -1);
+#define DEF_FUNCTION_TYPE_1(ENUM, RETURN, ARG1)				\
+  builtin_types[(int) ENUM]						\
+    = define_builtin_type (RETURN, ARG1, -1, -1, -1);
+#define DEF_FUNCTION_TYPE_2(ENUM, RETURN, ARG1, ARG2)	\
+  builtin_types[(int) ENUM]				\
+    = define_builtin_type (RETURN, ARG1, ARG2, -1, -1);
+#define DEF_FUNCTION_TYPE_3(ENUM, RETURN, ARG1, ARG2, ARG3)		 \
+  builtin_types[(int) ENUM]						 \
+    = define_builtin_type (RETURN, ARG1, ARG2, ARG3, -1);
+#define DEF_FUNCTION_TYPE_4(ENUM, RETURN, ARG1, ARG2, ARG3, ARG4)	\
+  builtin_types[(int) ENUM]						\
+    = define_builtin_type (RETURN, ARG1, ARG2, ARG3, ARG4);
+#define DEF_FUNCTION_TYPE_VAR_0(ENUM, RETURN)				      \
+  builtin_types[(int) ENUM] = NULL_TREE;
+#define DEF_FUNCTION_TYPE_VAR_1(ENUM, RETURN, ARG1)			 \
+   builtin_types[(int) ENUM] = NULL_TREE;
+#define DEF_FUNCTION_TYPE_VAR_2(ENUM, RETURN, ARG1, ARG2)	\
+   builtin_types[(int) ENUM] = NULL_TREE;
+#define DEF_POINTER_TYPE(ENUM, TYPE)			\
+  builtin_types[(int) ENUM] = NULL_TREE;
+
+#include "builtin-types.def"
+
+#define DEF_BUILTIN(ENUM, NAME, CLASS, TYPE, LIBTYPE, BOTH_P, \
+                    FALLBACK_P, NONANSI_P) \
+  define_builtin (ENUM, NAME, CLASS, builtin_types[TYPE], FALLBACK_P);
+#include "builtins.def"
+}
+
+/* Generate a method call.  If the call matches a builtin, return the
+   appropriate builtin expression instead.  */
+tree
+build_call_or_builtin (method, func, method_arguments)
+     tree method, func, method_arguments;
+{
+  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));
+  tree call = NULL_TREE;
+
+  /* Only look if we're generating object code and optimizing.  */
+  if (! flag_emit_class_files && optimize)
+    {
+      int i;
+
+      for (i = 0; java_builtins[i].creator != NULL; ++i)
+	{
+	  if (method_class == java_builtins[i].class_name.t
+	      && method_name == java_builtins[i].method_name.t)
+	    {
+	      call = (*java_builtins[i].creator) (method_return_type,
+						  method_arguments);
+	      break;
+	    }
+	}
+    }
+
+  if (call == NULL_TREE)
+    {
+      /* Either nothing matched, or the creator function decided not
+	 to inline.  In either case, emit a call.  */
+      call = build (CALL_EXPR, method_return_type, func, method_arguments,
+		    NULL_TREE);
+      TREE_SIDE_EFFECTS (call) = 1;
+    }
+
+  return call;
+}