+++ /dev/null
-/* 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));
-
-\f
-
-/* 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];
-
-\f
-/* 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 ATTRIBUTE_UNUSED, 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 ATTRIBUTE_UNUSED, 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 ATTRIBUTE_UNUSED, method_arguments;
-{
- /* FIXME: this assumes that jdouble and double are the same. */
- tree fn = built_in_decls[BUILT_IN_SQRT];
- if (fn == NULL_TREE)
- return NULL_TREE;
- return build_function_call_expr (fn, method_arguments);
-}
-
-\f
-
-/* 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 || ! type)
- 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);
-}
-
-\f
-
-/* 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"
-}
-
-/* If the call matches a builtin, return the
- appropriate builtin expression instead. */
-tree
-check_for_builtin (method, call)
- 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].creator != NULL; ++i)
- {
- if (method_class == java_builtins[i].class_name.t
- && method_name == java_builtins[i].method_name.t)
- {
- return (*java_builtins[i].creator) (method_return_type,
- method_arguments);
- }
- }
- }
- return call;
-}
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