lang.c (flag_use_divide_subroutine): New variable.

1999-07-15  Andrew Haley  <aph@cygnus.com>

        * lang.c (flag_use_divide_subroutine): New variable.
        * typeck.c: (convert_ieee_real_to_integer): Bounds check
        fp-to-integer conversion.
        (convert): Call convert_ieee_real_to_integer when flag_fast_math
        is not set.

        * expr.c (build_java_soft_divmod): New function.
        (build_java_binop): Call build_java_soft_divmod if
        flag_use_divide_subroutine is set.
        * decl.c: soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
        soft_lrem_node: new builtin functions.
        (init_decl_processing) Initialize the new builtins.
        * java-tree.h soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
        soft_lrem_node: new builtin functions.
        (build_java_soft_divmod): New function.
        * parse.y: Call build_java_soft_divmod if
        flag_use_divide_subroutine is set.
        * parse.c: Rebuilt.

        * jvspec.c (lang_specific_driver): Always allow an extra arg (for
        a --specs= arg) even if not linking.
        * lang-options.h (DEFINE_LANG_NAME ("Java")): Add
        -fuse-divide-subroutine

From-SVN: r28209

gcc/java/ChangeLog

 1999-07-15  Andrew Haley  <aph@cygnus.com>
 
-	* lang.c (flag_use_divide_subroutine): New variable.
-	* typeck.c: (convert_ieee_real_to_integer): Bounds check
-	fp-to-integer conversion.
-	(convert): Call convert_ieee_real_to_integer when flag_fast_math
-	is not set.
-
-	* expr.c (build_java_soft_divmod): New function.
-	(build_java_binop): Call build_java_soft_divmod if
-	flag_use_divide_subroutine is set.
-	* decl.c: soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
-	soft_lrem_node: new builtin functions.
-	(init_decl_processing) Initialize the new builtins.
-	* java-tree.h soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
-	soft_lrem_node: new builtin functions.
-	(build_java_soft_divmod): New function.
-	* parse.y: Call build_java_soft_divmod if
-	flag_use_divide_subroutine is set.
-	
+        * lang.c (flag_use_divide_subroutine): New variable.
+        * typeck.c: (convert_ieee_real_to_integer): Bounds check
+        fp-to-integer conversion.
+        (convert): Call convert_ieee_real_to_integer when flag_fast_math
+        is not set.
+
+        * expr.c (build_java_soft_divmod): New function.
+        (build_java_binop): Call build_java_soft_divmod if
+        flag_use_divide_subroutine is set.
+        * decl.c: soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
+        soft_lrem_node: new builtin functions.
+        (init_decl_processing) Initialize the new builtins.
+        * java-tree.h soft_idiv_node, soft_irem_node, soft_ldiv_node, tree
+        soft_lrem_node: new builtin functions.
+        (build_java_soft_divmod): New function.
+        * parse.y: Call build_java_soft_divmod if
+        flag_use_divide_subroutine is set.
+        * parse.c: Rebuilt.
+
+        * jvspec.c (lang_specific_driver): Always allow an extra arg (for
+        a --specs= arg) even if not linking.
+        * lang-options.h (DEFINE_LANG_NAME ("Java")): Add
+        -fuse-divide-subroutine
+
 Tue Jul 20 13:20:05 1999  Alexandre Petit-Bianco  <apbianco@cygnus.com>
 
 	* parse.y (resolve_and_layout): Check methods only once.

gcc/java/jvspec.c

@@ -376,8 +376,7 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
     }
   if (saw_g + saw_O == 0)
     num_args++;
-  if (will_link)
-    num_args++;
+  num_args++;
   arglist = (char **) xmalloc ((num_args + 1) * sizeof (char *));
 
   for (i = 0, j = 0; i < argc; i++, j++)
@@ -408,7 +407,7 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
 	  continue;
 	}
 
-      if (will_link && spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)
+      if (spec_file == NULL && strncmp (argv[i], "-L", 2) == 0)
 	spec_file = find_spec_file (argv[i] + 2);
 
       if (strncmp (argv[i], "-fmain=", 7) == 0)
@@ -453,10 +452,10 @@ lang_specific_driver (fn, in_argc, in_argv, in_added_libraries)
   if (saw_g + saw_O == 0)
     arglist[j++] = "-g1";
 
-  /* Read the specs file corresponding to libgcj, but only if linking.
+  /* Read the specs file corresponding to libgcj.
      If we didn't find the spec file on the -L path, then we hope it
      is somewhere in the standard install areas.  */
-  if (will_link)
+  if (! saw_C)
     arglist[j++] = spec_file == NULL ? "-specs=libgcj.spec" : spec_file;
 
   if (saw_C)

gcc/java/lang-options.h

@@ -43,6 +43,8 @@ DEFINE_LANG_NAME ("Java")
   { "-fCLASSPATH", "Set class path" },
   { "-I", "Add directory to class path" },
   { "-foutput-class-dir", "Directory where class files should be written" },
+  { "-fuse-divide-subroutine", "" },
+  { "-fno-use-divide-subroutine", "Use built-in instructions for division" },
   { "-Wredundant-modifiers", 
     "Warn if modifiers are specified when not necessary"},
-  { "-Wunsupported-jdk11", "Warn if `final' local variables are specified"},
+  { "-Wunsupported-jdk11", "Warn if `final' local variables are specified"}

gcc/java/parse.c

@@ -2212,7 +2212,7 @@ static const short yycheck[] = {     3,
 #define YYPURE 1
 
 /* -*-C-*-  Note some compilers choke on comments on `#line' lines.  */
-#line 3 "/usr/share/misc/bison.simple"
+#line 3 "/usr/local/share/bison.simple"
 
 /* Skeleton output parser for bison,
    Copyright (C) 1984, 1989, 1990 Free Software Foundation, Inc.
@@ -2229,7 +2229,7 @@ static const short yycheck[] = {     3,
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
 /* As a special exception, when this file is copied by Bison into a
    Bison output file, you may use that output file without restriction.
@@ -2363,10 +2363,8 @@ int yydebug;			/*  nonzero means print parse trace	*/
 
 /* Prevent warning if -Wstrict-prototypes.  */
 #ifdef __GNUC__
-#ifndef YYPARSE_PARAM
 int yyparse (void);
 #endif
-#endif
 
 #if __GNUC__ > 1		/* GNU C and GNU C++ define this.  */
 #define __yy_memcpy(TO,FROM,COUNT)	__builtin_memcpy(TO,FROM,COUNT)
@@ -2407,7 +2405,7 @@ __yy_memcpy (char *to, char *from, int count)
 #endif
 #endif
 
-#line 196 "/usr/share/misc/bison.simple"
+#line 196 "/usr/local/share/bison.simple"
 
 /* The user can define YYPARSE_PARAM as the name of an argument to be passed
    into yyparse.  The argument should have type void *.
@@ -4696,7 +4694,7 @@ case 495:
     break;}
 }
    /* the action file gets copied in in place of this dollarsign */
-#line 498 "/usr/share/misc/bison.simple"
+#line 498 "/usr/local/share/bison.simple"
 
   yyvsp -= yylen;
   yyssp -= yylen;
@@ -11998,6 +11996,12 @@ patch_binop (node, wfl_op1, wfl_op2)
       if (code == RDIV_EXPR && TREE_CODE (prom_type) == INTEGER_TYPE)
 	TREE_SET_CODE (node, TRUNC_DIV_EXPR);
 
+      if (TREE_CODE (prom_type) == INTEGER_TYPE
+	  && flag_use_divide_subroutine
+	  && ! flag_emit_class_files
+	  && (code == RDIV_EXPR || code == TRUNC_MOD_EXPR))
+	return build_java_soft_divmod (TREE_CODE (node), prom_type, op1, op2);
+ 
       /* This one is more complicated. FLOATs are processed by a
 	 function call to soft_fmod. Duplicate the value of the
 	 COMPOUND_ASSIGN_P flag. */