builtins.c (define_builtin_type, [...]): Delete.

	* builtins.c (define_builtin_type, builtin_types): Delete.
	(define_builtin): Rewritten to take just the built-in code,
	the function's name, type and fallback library function name.
	All built-ins used by Java are implicit and BUILT_IN_NORMAL.
	(initialize_builtins): Overhaul to define the GCC builtins
	used by gcj manually, providing the Java run-time's
	implementations as the fallback library function.

	* libjava.lang/MathBuiltin.java: New test case.
	* libjava.lang/MathBuiltin.out: New file.

From-SVN: r67632

2 files changed, 52 insertions, 101 deletions

diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index 23bc14b..f4b5a7f 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,3 +1,13 @@
+2003-06-08  Roger Sayle  <roger@eyesopen.com>
+
+	* builtins.c (define_builtin_type, builtin_types): Delete.
+	(define_builtin): Rewritten to take just the built-in code,
+	the function's name, type and fallback library function name.
+	All built-ins used by Java are implicit and BUILT_IN_NORMAL.
+	(initialize_builtins): Overhaul to define the GCC builtins
+	used by gcj manually, providing the Java run-time's
+	implementations as the fallback library function.
+
 2003-06-08  Anthony Green  <green@redhat.com>
 
 	* parse.y (patch_cast): Fix conversions from floating-point to
diff --git a/gcc/java/builtins.c b/gcc/java/builtins.c
index c0df323..45e0b9e 100644
--- a/gcc/java/builtins.c
+++ b/gcc/java/builtins.c
@@ -69,8 +69,7 @@ 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 *,
-			    enum built_in_class, tree, int, int);
-static tree define_builtin_type (int, int, int, int, int);
+			    tree, const char *);
 
 
 
@@ -114,10 +113,6 @@ static GTY(()) struct builtin_record java_builtins[] =
   { { NULL }, { NULL }, NULL, END_BUILTINS }
 };
 
-/* 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.  */
 
@@ -163,70 +158,22 @@ java_build_function_call_expr (tree fn, tree arglist)
 static void
 define_builtin (enum built_in_function val,
 		const char *name,
-		enum built_in_class class,
 		tree type,
-		int fallback_p,
-		int implicit)
+		const char *libname)
 {
   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_")));
+  SET_DECL_ASSEMBLER_NAME (decl, get_identifier (libname));
   make_decl_rtl (decl, NULL);
   pushdecl (decl);
-  DECL_BUILT_IN_CLASS (decl) = class;
+  DECL_BUILT_IN_CLASS (decl) = BUILT_IN_NORMAL;
   DECL_FUNCTION_CODE (decl) = val;
-  built_in_decls[val] = decl;
-  if (implicit)
-    implicit_built_in_decls[val] = decl;
-}
 
-/* Compute the type for a builtin.  */
-static tree
-define_builtin_type (int ret, int arg1, int arg2, int arg3, int 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);
+  implicit_built_in_decls[val] = decl;
+  built_in_decls[val] = decl;
 }
 
 
@@ -235,6 +182,9 @@ define_builtin_type (int ret, int arg1, int arg2, int arg3, int arg4)
 void
 initialize_builtins (void)
 {
+  tree double_ftype_double, double_ftype_double_double;
+  tree float_ftype_float, float_ftype_float_float;
+  tree t;
   int i;
 
   for (i = 0; java_builtins[i].builtin_code != END_BUILTINS; ++i)
@@ -248,48 +198,39 @@ initialize_builtins (void)
 
   void_list_node = end_params_node;
 
-  /* Work around C-specific junk in builtin-types.def.  */
-#define intmax_type_node NULL_TREE
-#define c_size_type_node NULL_TREE
-#define const_string_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_FUNCTION_TYPE_VAR_3(ENUM, RETURN, ARG1, ARG2, ARG3)	\
-   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, ATTRS, IMPLICIT) \
-  define_builtin (ENUM, NAME, CLASS, builtin_types[TYPE], FALLBACK_P, IMPLICIT);
-#include "builtins.def"
+  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);
+
+  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_ATAN, "__builtin_atan",
+		  double_ftype_double, "_ZN4java4lang4Math4atanEd");
+  define_builtin (BUILT_IN_ATAN2, "__builtin_atan2",
+		  double_ftype_double_double, "_ZN4java4lang4Math5atan2Edd");
+  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_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");
 }
 
 /* If the call matches a builtin, return the