/* Generate code to allocate RTL structures.
- Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2007
+ Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-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.
+GCC 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 3, 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.
+GCC 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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
-#include "hconfig.h"
+#include "bconfig.h"
#include "system.h"
-#define NO_GENRTL_H
-#include "rtl.h"
-#undef abort
-
-#include "real.h"
-
-/* Calculate the format for CONST_DOUBLE. This depends on the relative
- widths of HOST_WIDE_INT and REAL_VALUE_TYPE.
-
- We need to go out to e0wwwww, since REAL_ARITHMETIC assumes 16-bits
- per element in REAL_VALUE_TYPE.
-
- This is duplicated in rtl.c.
-
- A number of places assume that there are always at least two 'w'
- slots in a CONST_DOUBLE, so we provide them even if one would suffice. */
-
-#ifdef REAL_ARITHMETIC
-#if MAX_LONG_DOUBLE_TYPE_SIZE == 96
-#define REAL_WIDTH (11*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-#elif MAX_LONG_DOUBLE_TYPE_SIZE == 128
-#define REAL_WIDTH (19*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-#elif HOST_FLOAT_FORMAT != TARGET_FLOAT_FORMAT
-#define REAL_WIDTH (7*8 + HOST_BITS_PER_WIDE_INT)/HOST_BITS_PER_WIDE_INT
-#endif
-#endif /* REAL_ARITHMETIC */
-
-#ifndef REAL_WIDTH
-#if HOST_BITS_PER_WIDE_INT*2 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#define REAL_WIDTH 2
-#elif HOST_BITS_PER_WIDE_INT*3 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#define REAL_WIDTH 3
-#elif HOST_BITS_PER_WIDE_INT*4 >= MAX_LONG_DOUBLE_TYPE_SIZE
-#define REAL_WIDTH 4
-#endif
-#endif /* REAL_WIDTH */
-
-#if REAL_WIDTH == 1
-#define CONST_DOUBLE_FORMAT "e0ww"
-#elif REAL_WIDTH == 2
-#define CONST_DOUBLE_FORMAT "e0ww"
-#elif REAL_WIDTH == 3
-#define CONST_DOUBLE_FORMAT "e0www"
-#elif REAL_WIDTH == 4
-#define CONST_DOUBLE_FORMAT "e0wwww"
-#elif REAL_WIDTH == 5
-#define CONST_DOUBLE_FORMAT "e0wwwww"
-#else
-#define CONST_DOUBLE_FORMAT /* nothing - will cause syntax error */
-#endif
-
-
-struct rtx_definition
+struct rtx_definition
{
- const char *enumname, *name, *format;
+ const char *const enumname, *const name, *const format;
};
-#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) { STRINGIFY(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 ""
-struct rtx_definition defs[] =
-{
+#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 */
};
-
-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 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));
+#define NUM_RTX_CODE ARRAY_SIZE(defs)
+
+static const char *formats[NUM_RTX_CODE];
+
+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)
{
return "HOST_WIDE_INT ";
case 's':
- return "char *";
+ return "const char *";
case 'e': case 'u':
return "rtx ";
return "struct bitmap_head_def *"; /* bitmap - typedef not available */
case 't':
return "union tree_node *"; /* tree - typedef not available */
+ 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)
{
case 't':
return "XTREE";
+ case 'B':
+ 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
|| strchr (fmt, 'n') != 0);
}
-/* Return nonzero if the RTL code given by index IDX is one that we should not
- generate a gen_RTX_FOO function foo (because that function is present
- elsewhere in the compiler. */
+/* Return nonzero if the RTL code given by index IDX is one that we should
+ generate a gen_rtx_raw_FOO macro for, not gen_rtx_FOO (because gen_rtx_FOO
+ 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, "CONST_DOUBLE") == 0
|| strcmp (defs[idx].enumname, "REG") == 0
- || strcmp (defs[idx].enumname, "MEM") == 0);
+ || strcmp (defs[idx].enumname, "SUBREG") == 0
+ || strcmp (defs[idx].enumname, "MEM") == 0
+ || strcmp (defs[idx].enumname, "CONST_VECTOR") == 0);
+}
+
+/* Return nonzero if the RTL code given by index IDX is one that we should
+ generate no macro for at all (because gen_rtx_FOO is never used or
+ cannot have the obvious interface). */
+
+static int
+excluded_rtx (int idx)
+{
+ return ((strcmp (defs[idx].enumname, "CONST_DOUBLE") == 0)
+ || (strcmp (defs[idx].enumname, "CONST_FIXED") == 0));
}
-/* Place a list of all format specifiers we use into the array FORMAT. */
+/* 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_stat\t (RTX_CODE, ", format);
printf ("enum machine_mode mode");
/* Write each parameter that is needed and start a new line when the line
printf (" %sarg%d", type_from_format (*p), i++);
pos += ourlen;
}
+ printf (" MEM_STAT_DECL");
- printf ("));\n");
+ printf (");\n");
+ printf ("#define gen_rtx_fmt_%s(c, m", format);
+ for (p = format, i = 0; *p != 0; p++)
+ if (*p != '0')
+ printf (", p%i",i++);
+ printf (")\\\n gen_rtx_fmt_%s_stat (c, m", format);
+ for (p = format, i = 0; *p != 0; p++)
+ if (*p != '0')
+ printf (", p%i",i++);
+ printf (" MEM_STAT_INFO)\n\n");
}
/* Generate macros to generate RTL of code IDX using the functions we
write. */
-static void
-genmacro (idx)
- int idx;
+static void
+genmacro (int idx)
{
const char *p;
int i;
/* We write a macro that defines gen_rtx_RTLCODE to be an equivalent to
gen_rtx_fmt_FORMAT where FORMAT is the RTX_FORMAT of RTLCODE. */
+ if (excluded_rtx (idx))
+ /* Don't define a macro for this code. */
+ return;
+
printf ("#define gen_rtx_%s%s(MODE",
special_rtx (idx) ? "raw_" : "", defs[idx].enumname);
if (*p != '0')
printf (", (ARG%d)", i++);
- printf (")\n");
+ puts (")");
}
/* Generate the code for the function to generate RTL whose
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_stat (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++);
- printf (")\n RTX_CODE code;\n enum machine_mode mode;\n");
- for (p = format, i = 0; *p != 0; p++)
- if (*p != '0')
- printf (" %sarg%d;\n", type_from_format (*p), i++);
+ puts (" MEM_STAT_DECL)");
/* Now write out the body of the function itself, which allocates
the memory and initializes it. */
- printf ("{\n");
- printf (" rtx rt;\n");
- printf (" if (ggc_p)\n");
- printf (" rt = ggc_alloc_rtx (%d);\n",
- (int) strlen (format));
- printf (" else\n");
- printf (" rt = obstack_alloc_rtx (sizeof (struct rtx_def) + %d * sizeof (rtunion));\n",
- (int) strlen (format) - 1);
-
- printf (" PUT_CODE (rt, code);\n");
- printf (" PUT_MODE (rt, mode);\n");
+ puts ("{");
+ puts (" rtx rt;");
+ puts (" rt = rtx_alloc_stat (code PASS_MEM_STAT);\n");
+
+ puts (" PUT_MODE (rt, mode);");
for (p = format, i = j = 0; *p ; ++p, ++i)
if (*p != '0')
printf (" %s (rt, %d) = arg%d;\n", accessor_from_format (*p), i, j++);
+ else
+ printf (" X0EXP (rt, %d) = NULL_RTX;\n", i);
- printf ("\n return rt;\n}\n\n");
+ puts ("\n return rt;\n}\n");
}
/* Generate the documentation header for files we write. */
static void
-genlegend ()
+genlegend (void)
{
- printf ("/* Generated automaticaly by the program `gengenrtl'\n");
- printf (" from the RTL description file `rtl.def' */\n\n");
+ 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");
+ puts ("#define GCC_GENRTL_H\n");
+ puts ("#include \"statistics.h\"\n");
+
for (fmt = formats; *fmt; ++fmt)
gendecl (*fmt);
- printf ("\n");
+ putchar ('\n');
for (i = 0; i < NUM_RTX_CODE; i++)
if (! special_format (defs[i].format))
genmacro (i);
+
+ puts ("\n#endif /* GCC_GENRTL_H */");
}
/* Generate the text of the code file we write, genrtl.c. */
static void
-gencode ()
+gencode (void)
{
const char **fmt;
- puts ("#include \"config.h\"\n");
- puts ("#include \"system.h\"\n");
- puts ("#include \"obstack.h\"\n");
- puts ("#include \"rtl.h\"\n");
- puts ("#include \"ggc.h\"\n\n");
- puts ("extern struct obstack *rtl_obstack;\n\n");
- puts ("static rtx obstack_alloc_rtx PARAMS ((int length));\n");
- puts ("static rtx obstack_alloc_rtx (length)\n");
- puts (" register int length;\n{\n");
- puts (" rtx rt = (rtx) obstack_alloc (rtl_obstack, length);\n\n");
- puts (" memset(rt, 0, sizeof(struct rtx_def) - sizeof(rtunion));\n\n");
- puts (" return rt;\n}\n\n");
+ puts ("#include \"config.h\"");
+ puts ("#include \"system.h\"");
+ puts ("#include \"coretypes.h\"");
+ puts ("#include \"tm.h\"");
+ puts ("#include \"obstack.h\"");
+ puts ("#include \"rtl.h\"");
+ puts ("#include \"ggc.h\"\n");
for (fmt = formats; *fmt != 0; fmt++)
gendef (*fmt);
}
-#if defined(USE_C_ALLOCA)
-PTR
-xmalloc (nbytes)
- size_t nbytes;
-{
- register PTR tmp = (PTR) malloc (nbytes);
-
- if (!tmp)
- {
- fprintf (stderr, "can't allocate %d bytes (out of virtual memory)\n",
- nbytes);
- exit (FATAL_EXIT_CODE);
- }
-
- return tmp;
-}
-#endif /* USE_C_ALLOCA */
-
/* 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 ();
else
gencode ();
- fflush (stdout);
- return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE);
+ if (ferror (stdout) || fflush (stdout) || fclose (stdout))
+ return FATAL_EXIT_CODE;
+
+ return SUCCESS_EXIT_CODE;
}
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