/* Generate code to allocate RTL structures.
- Copyright (C) 1997, 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004
+ Free Software Foundation, Inc.
This file is part of GCC.
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. */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA. */
#include "bconfig.h"
#include "system.h"
-#include "coretypes.h"
-#include "tm.h"
-
-#define NO_GENRTL_H
-#include "rtl.h"
-#undef abort
-
-#include "real.h"
struct rtx_definition
{
const char *const enumname, *const name, *const format;
};
-#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { STRINGX(ENUM), NAME, FORMAT },
+/* rtl.def needs CONST_DOUBLE_FORMAT, but we don't care what
+ CONST_DOUBLE_FORMAT is because we're not going to be generating
+ anything for CONST_DOUBLE anyway. */
+#define CONST_DOUBLE_FORMAT ""
+
+#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { #ENUM, NAME, FORMAT },
static const struct rtx_definition defs[] =
{
#include "rtl.def" /* rtl expressions are documented here */
};
+#define NUM_RTX_CODE ARRAY_SIZE(defs)
static const char *formats[NUM_RTX_CODE];
-static const char *type_from_format PARAMS ((int));
-static const char *accessor_from_format PARAMS ((int));
-static int special_format PARAMS ((const char *));
-static int special_rtx PARAMS ((int));
-static int excluded_rtx PARAMS ((int));
-static void find_formats PARAMS ((void));
-static void gendecl PARAMS ((const char *));
-static void genmacro PARAMS ((int));
-static void gendef PARAMS ((const char *));
-static void genlegend PARAMS ((void));
-static void genheader PARAMS ((void));
-static void gencode PARAMS ((void));
+static const char *type_from_format (int);
+static const char *accessor_from_format (int);
+static int special_format (const char *);
+static int special_rtx (int);
+static int excluded_rtx (int);
+static void find_formats (void);
+static void gendecl (const char *);
+static void genmacro (int);
+static void gendef (const char *);
+static void genlegend (void);
+static void genheader (void);
+static void gencode (void);
\f
/* Decode a format letter into a C type string. */
static const char *
-type_from_format (c)
- int c;
+type_from_format (int c)
{
switch (c)
{
case 'B':
return "struct basic_block_def *"; /* basic block - typedef not available */
default:
- abort ();
+ gcc_unreachable ();
}
}
/* Decode a format letter into the proper accessor function. */
static const char *
-accessor_from_format (c)
- int c;
+accessor_from_format (int c)
{
switch (c)
{
return "XBBDEF";
default:
- abort ();
+ gcc_unreachable ();
}
}
the list of formats we write routines to create. */
static int
-special_format (fmt)
- const char *fmt;
+special_format (const char *fmt)
{
return (strchr (fmt, '*') != 0
|| strchr (fmt, 'V') != 0
is a wrapper in emit-rtl.c). */
static int
-special_rtx (idx)
- int idx;
+special_rtx (int idx)
{
return (strcmp (defs[idx].enumname, "CONST_INT") == 0
|| strcmp (defs[idx].enumname, "REG") == 0
cannot have the obvious interface). */
static int
-excluded_rtx (idx)
- int idx;
+excluded_rtx (int idx)
{
return (strcmp (defs[idx].enumname, "CONST_DOUBLE") == 0);
}
/* Place a list of all format specifiers we use into the array FORMAT. */
static void
-find_formats ()
+find_formats (void)
{
- int i;
+ unsigned int i;
for (i = 0; i < NUM_RTX_CODE; i++)
{
/* Write the declarations for the routine to allocate RTL with FORMAT. */
static void
-gendecl (format)
- const char *format;
+gendecl (const char *format)
{
const char *p;
int i, pos;
- printf ("extern rtx gen_rtx_fmt_%s\tPARAMS ((RTX_CODE, ", format);
+ printf ("extern rtx gen_rtx_fmt_%s\t (RTX_CODE, ", format);
printf ("enum machine_mode mode");
/* Write each parameter that is needed and start a new line when the line
pos += ourlen;
}
- printf ("));\n");
+ printf (");\n");
}
/* Generate macros to generate RTL of code IDX using the functions we
write. */
static void
-genmacro (idx)
- int idx;
+genmacro (int idx)
{
const char *p;
int i;
format is FORMAT. */
static void
-gendef (format)
- const char *format;
+gendef (const char *format)
{
const char *p;
int i, j;
/* Start by writing the definition of the function name and the types
of the arguments. */
- printf ("rtx\ngen_rtx_fmt_%s (code, mode", format);
+ printf ("rtx\ngen_rtx_fmt_%s (RTX_CODE code, enum machine_mode mode", format);
for (p = format, i = 0; *p != 0; p++)
if (*p != '0')
- printf (", arg%d", i++);
+ printf (",\n\t%sarg%d", type_from_format (*p), i++);
- puts (")\n RTX_CODE code;\n enum machine_mode mode;");
- for (p = format, i = 0; *p != 0; p++)
- if (*p != '0')
- printf (" %sarg%d;\n", type_from_format (*p), i++);
+ puts (")");
/* Now write out the body of the function itself, which allocates
the memory and initializes it. */
puts ("{");
puts (" rtx rt;");
- printf (" rt = ggc_alloc_rtx (%d);\n", (int) strlen (format));
+ puts (" rt = rtx_alloc (code);\n");
- puts (" memset (rt, 0, sizeof (struct rtx_def) - sizeof (rtunion));\n");
- puts (" PUT_CODE (rt, code);");
puts (" PUT_MODE (rt, mode);");
for (p = format, i = j = 0; *p ; ++p, ++i)
/* Generate the documentation header for files we write. */
static void
-genlegend ()
+genlegend (void)
{
puts ("/* Generated automatically by gengenrtl from rtl.def. */\n");
}
/* Generate the text of the header file we make, genrtl.h. */
static void
-genheader ()
+genheader (void)
{
- int i;
+ unsigned int i;
const char **fmt;
puts ("#ifndef GCC_GENRTL_H");
/* Generate the text of the code file we write, genrtl.c. */
static void
-gencode ()
+gencode (void)
{
const char **fmt;
/* This is the main program. We accept only one argument, "-h", which
says we are writing the genrtl.h file. Otherwise we are writing the
genrtl.c file. */
-extern int main PARAMS ((int, char **));
int
-main (argc, argv)
- int argc;
- char **argv;
+main (int argc, char **argv)
{
find_formats ();
genlegend ();
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