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i386.md: Global update to use new string syntax where it will improve readability. 

* config/i386/i386.md: Global update to use new string syntax
	where it will improve readability.  Warning fixes:
	(*truncdfsf2_2): Abort if which_alternative is not 0 or 1.
	(*adddi_1_rex64, *adddi_2_rex64, *adddi_3_rex64,
	*adddi_4_rex64, *adddi_5_rex64): Cast 1 to unsigned int.

	* read-rtl.c: Syntactic sugar for C embedded in strings in
	machine descriptions.
	(read_string): Break inner loop into separate function.  Takes
	an int.  Dispatch to read_quoted_string or read_braced_string
	as appropriate.  Automatically insert a leading star on braced
	strings if STAR_IF_BRACED is true.
	(read_quoted_string, read_braced_string): New functions.
	* doc/rtl.texi, doc/md.texi: Document new syntax.  Update
	examples to match.

	* rtl.c: Split RTL reader (read_rtx, read_skip_spaces,
	traverse_md_constants, fatal_with_file_and_line,
	fatal_expected_char, read_name, read_string, def_hash,
	def_name_eq_p, read_constants, and related data) to its own
	file.  Weed out now-unnecessary #includes.
	* read-rtl.c: New file.
	* Makefile.in (HOST_RTL): Add read-rtl.o.
	(read-rtl.o): New rule.
	(rtl.o, $(HOST_PREFIX_1)rtl.o): Update dependencies.
	* doc/gcc.texi (Passes): Talk briefly about the support
	library used by genfoo.
	* doc/rtl.texi (Reading RTL): read_rtx is not available in the
	compiler itself.

From-SVN: r43646
This commit is contained in:
Zack Weinberg 2001-06-28 21:50:09 +00:00
parent 0168a84948
commit 0f40f9f7c6
8 changed files with 2036 additions and 2058 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
gcc/ChangeLog
View File

@ -1,3 +1,35 @@
2001-06-28 Zack Weinberg <zackw@stanford.edu>
* config/i386/i386.md: Global update to use new string syntax
where it will improve readability. Warning fixes:
(*truncdfsf2_2): Abort if which_alternative is not 0 or 1.
(*adddi_1_rex64, *adddi_2_rex64, *adddi_3_rex64,
*adddi_4_rex64, *adddi_5_rex64): Cast 1 to unsigned int.
* read-rtl.c: Syntactic sugar for C embedded in strings in
machine descriptions.
(read_string): Break inner loop into separate function. Takes
an int. Dispatch to read_quoted_string or read_braced_string
as appropriate. Automatically insert a leading star on braced
strings if STAR_IF_BRACED is true.
(read_quoted_string, read_braced_string): New functions.
* doc/rtl.texi, doc/md.texi: Document new syntax. Update
examples to match.
* rtl.c: Split RTL reader (read_rtx, read_skip_spaces,
traverse_md_constants, fatal_with_file_and_line,
fatal_expected_char, read_name, read_string, def_hash,
def_name_eq_p, read_constants, and related data) to its own
file. Weed out now-unnecessary #includes.
* read-rtl.c: New file.
* Makefile.in (HOST_RTL): Add read-rtl.o.
(read-rtl.o): New rule.
(rtl.o, $(HOST_PREFIX_1)rtl.o): Update dependencies.
* doc/gcc.texi (Passes): Talk briefly about the support
library used by genfoo.
* doc/rtl.texi (Reading RTL): read_rtx is not available in the
compiler itself.
2001-06-28 Stan Shebs <shebs@apple.com>
* config/darwin.h (REGISTER_TARGET_PRAGMAS): Define.
@ -121,7 +153,7 @@ Wed Jun 27 18:01:09 2001 Jeffrey A Law (law@cygnus.com)
. at end of sentences preceded by a capital letter with @..
2001-06-26 Daniel Berlin <dan@cgsoftware.com>
* doc/invoke.texi: Add description of max-gcse-passes param.
* gcse.c (gcse_main): Use MAX_GCSE_PASSES instead of MAX_PASSES.
@ -439,7 +471,7 @@ Tue Jun 26 12:40:12 CEST 2001 Jan Hubicka <jh@suse.cz>
* config/ia64/quadlib.c: New.
* config/ia64/t-hpux: New.
* config/i386/i386.h (INTEL_EXTENDED_IEEE_FORMAT): Define to one.
2001-06-25 Jim Wilson <wilson@redhat.com>
* config/i960/t-960bare (i960-c.o): Add missing header dependencies.
@ -734,7 +766,7 @@ Thu Jun 21 22:15:10 2001 J"orn Rennecke <amylaar@redhat.com>
2001-06-21 DJ Delorie <dj@redhat.com>
* integrate.c (mark_hard_reg_initial_vals): Check for NULL.
* integrate.c (ggc.h): Include.
(initial_value_pair, initial_value_struct,
setup_initial_hard_reg_value_integration): Add prototypes.
@ -796,7 +828,7 @@ Wed Jun 20 08:35:02 2001 Jeffrey A Law (law@cygnus.com)
* ssa.c (rename_block): Update parameter to remove_phi_alternative
(convert_from_ssa): Do create REG_DEAD and REG_UNUSED notes when
re-running life analysis.
re-running life analysis.
2001-06-20 Stan Shebs <shebs@apple.com>

11
gcc/Makefile.in
View File

@ -633,7 +633,7 @@ LIBS = $(OBSTACK) $(INTLLIBS) @LIBS@ $(VFPRINTF) $(DOPRINT) \
HOST_LIBS = $(USE_HOST_OBSTACK) $(USE_HOST_VFPRINTF) \
$(USE_HOST_DOPRINT) $(USE_HOST_STRSTR)
HOST_RTL = $(HOST_PREFIX)rtl.o $(HOST_PREFIX)bitmap.o \
HOST_RTL = $(HOST_PREFIX)rtl.o read-rtl.o $(HOST_PREFIX)bitmap.o \
$(HOST_PREFIX)ggc-none.o gensupport.o hashtab.o safe-ctype.o
HOST_PRINT = $(HOST_PREFIX)print-rtl.o
@ -1344,12 +1344,13 @@ toplev.o : toplev.c $(CONFIG_H) $(SYSTEM_H) $(TREE_H) $(RTL_H) function.h \
-c $(srcdir)/toplev.c
main.o : main.c toplev.h
rtl.o : rtl.c $(GCONFIG_H) $(SYSTEM_H) $(RTL_H) bitmap.h $(GGC_H) toplev.h
rtl.o : rtl.c $(GCONFIG_H) $(SYSTEM_H) $(RTL_H) real.h $(GGC_H)
$(CC) -c $(ALL_CFLAGS) -DGENERATOR_FILE $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
print-rtl.o : print-rtl.c $(GCONFIG_H) $(SYSTEM_H) $(RTL_H) hard-reg-set.h \
$(BASIC_BLOCK_H)
$(CC) -c $(ALL_CFLAGS) -DGENERATOR_FILE $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
rtlanal.o : rtlanal.c $(CONFIG_H) $(SYSTEM_H) toplev.h $(RTL_H) hard-reg-set.h
errors.o : errors.c $(GCONFIG_H) $(SYSTEM_H) errors.h
$(CC) -c $(ALL_CFLAGS) -DGENERATOR_FILE $(ALL_CPPFLAGS) $(INCLUDES) $< $(OUTPUT_OPTION)
@ -1704,6 +1705,10 @@ s-genrtl: gengenrtl$(build_exeext) $(srcdir)/move-if-change $(RTL_BASE_H)
# about the target machine. They do depend on config.h itself,
# since that describes the host machine.
read-rtl.o: read-rtl.c $(HCONFIG_H) $(SYSTEM_H) $(RTL_H) \
$(OBSTACK_H) $(HASHTAB_H)
$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(srcdir)/read-rtl.c
gensupport.o: gensupport.c $(RTL_H) $(OBSTACK_H) $(SYSTEM_H) errors.h gensupport.h
$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(srcdir)/gensupport.c
@ -1814,7 +1819,7 @@ gengenrtl.o : gengenrtl.c $(RTL_BASE_H) $(HCONFIG_H) $(SYSTEM_H) real.h
# and HOST_PREFIX_1 is `foobar', just to ensure these rules don't conflict
# with the rules for rtl.o, etc.
$(HOST_PREFIX_1)rtl.o: $(srcdir)/rtl.c $(HCONFIG_H) $(SYSTEM_H) $(RTL_H) \
bitmap.h $(GGC_H) toplev.h $(HASHTAB_H)
$(GGC_H)
rm -f $(HOST_PREFIX)rtl.c
sed -e 's/config[.]h/hconfig.h/' $(srcdir)/rtl.c > $(HOST_PREFIX)rtl.c
$(HOST_CC) -c $(HOST_CFLAGS) $(HOST_CPPFLAGS) $(INCLUDES) $(HOST_PREFIX)rtl.c

2619
gcc/config/i386/i386.md
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File diff suppressed because it is too large Load Diff

4
gcc/doc/gcc.texi
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@ -3724,6 +3724,10 @@ and @file{rtl.def}, and subroutines in file @file{rtl.c}. The tools
@code{gen*} also use these files to read and work with the machine
description RTL@.
@item
All the tools that read the machine description use support routines
found in @file{gensupport.c}, @file{errors.c}, and @file{read-rtl.c}.
@findex genconfig
@item
Several passes refer to the header file @file{insn-config.h} which

53
gcc/doc/md.texi
View File

@ -184,9 +184,26 @@ Here is an actual example of an instruction pattern, for the 68000/68020.
(match_operand:SI 0 "general_operand" "rm"))]
""
"*
@{ if (TARGET_68020 || ! ADDRESS_REG_P (operands[0]))
@{
if (TARGET_68020 || ! ADDRESS_REG_P (operands[0]))
return \"tstl %0\";
return \"cmpl #0,%0\"; @}")
return \"cmpl #0,%0\";
@}")
@end example
@noindent
This can also be written using braced strings:
@example
(define_insn "tstsi"
[(set (cc0)
(match_operand:SI 0 "general_operand" "rm"))]
""
@{
if (TARGET_68020 || ! ADDRESS_REG_P (operands[0]))
return "tstl %0";
return "cmpl #0,%0";
@})
@end example
This is an instruction that sets the condition codes based on the value of
@ -620,6 +637,11 @@ template-string you want. Most such templates use C string literals, which
require doublequote characters to delimit them. To include these
doublequote characters in the string, prefix each one with @samp{\}.
If the output control string is written as a brace block instead of a
double-quoted string, it is automatically assumed to be C code. In that
case, it is not necessary to put in a leading asterisk, or to escape the
doublequotes surrounding C string literals.
The operands may be found in the array @code{operands}, whose C data type
is @code{rtx []}.
@ -656,10 +678,10 @@ a pattern could use @code{which_alternative} to choose between them:
[(set (match_operand:SI 0 "general_operand" "=r,m")
(const_int 0))]
""
"*
@{
return (which_alternative == 0
? \"clrreg %0\" : \"clrmem %0\");
")
? "clrreg %0" : "clrmem %0");
@})
@end smallexample
The example above, where the assembler code to generate was
@ -3943,21 +3965,19 @@ Here is an example, taken from the 68000 machine description:
(set (match_operand:DF 0 "register_operand" "=f")
(match_operand:DF 1 "register_operand" "ad"))]
"FP_REG_P (operands[0]) && ! FP_REG_P (operands[1])"
"*
@{
rtx xoperands[2];
xoperands[1] = gen_rtx (REG, SImode, REGNO (operands[1]) + 1);
#ifdef MOTOROLA
output_asm_insn (\"move.l %1,(sp)\", xoperands);
output_asm_insn (\"move.l %1,-(sp)\", operands);
return \"fmove.d (sp)+,%0\";
output_asm_insn ("move.l %1,(sp)", xoperands);
output_asm_insn ("move.l %1,-(sp)", operands);
return "fmove.d (sp)+,%0";
#else
output_asm_insn (\"movel %1,sp@@\", xoperands);
output_asm_insn (\"movel %1,sp@@-\", operands);
return \"fmoved sp@@+,%0\";
output_asm_insn ("movel %1,sp@@", xoperands);
output_asm_insn ("movel %1,sp@@-", operands);
return "fmoved sp@@+,%0";
#endif
@}
")
@})
@end smallexample
@need 1000
@ -4656,11 +4676,10 @@ as follows:
[(set (pc)
(label_ref (match_operand 0 "" "")))]
""
"*
@{
return (get_attr_length (insn) == 4
? \"b %l0\" : \"l r15,=a(%l0); br r15\");
@}"
? "b %l0" : "l r15,=a(%l0); br r15");
@}
[(set (attr "length") (if_then_else (lt (match_dup 0) (const_int 4096))
(const_int 4)
(const_int 6)))])

24
gcc/doc/rtl.texi
View File

@ -70,6 +70,21 @@ pointers instead of strings are valid. Within RTL code, strings are most
commonly found inside @code{symbol_ref} expressions, but they appear in
other contexts in the RTL expressions that make up machine descriptions.
In a machine description, strings are normally written with double
quotes, as you would in C. However, strings in machine descriptions may
extend over many lines, which is invalid C, and adjacent string
constants are not concatenated as they are in C. Any string constant
may be surrounded with a single set of parentheses. Sometimes this
makes the machine description easier to read.
There is also a special syntax for strings, which can be useful when C
code is embedded in a machine description. Wherever a string can
appear, it is also valid to write a C-style brace block. The entire
brace block, including the outermost pair of braces, is considered to be
the string constant. Double quote characters inside the braces are not
special. Therefore, if you write string constants in the C code, you
need not escape each quote character with a backslash.
A vector contains an arbitrary number of pointers to expressions. The
number of elements in the vector is explicitly present in the vector.
The written form of a vector consists of square brackets
@ -3182,11 +3197,10 @@ combiner is finished with the insn. This is done by calling
@section Reading RTL
To read an RTL object from a file, call @code{read_rtx}. It takes one
argument, a stdio stream, and returns a single RTL object.
Reading RTL from a file is very slow. This is not currently a
problem since reading RTL occurs only as part of building the
compiler.
argument, a stdio stream, and returns a single RTL object. This routine
is defined in @file{read-rtl.c}. It is not available in the compiler
itself, only the various programs that generate the compiler back end
from the machine description.
People frequently have the idea of using RTL stored as text in a file as
an interface between a language front end and the bulk of GCC@. This

727
gcc/read-rtl.c Normal file
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@ -0,0 +1,727 @@
/* RTL reader for GNU C Compiler.
Copyright (C) 1987, 1988, 1991, 1994, 1997, 1998, 1999, 2000, 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. */
#include "hconfig.h"
#include "system.h"
#include "rtl.h"
#include "obstack.h"
#include "hashtab.h"
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
static htab_t md_constants;
static void fatal_with_file_and_line PARAMS ((FILE *, const char *, ...))
ATTRIBUTE_PRINTF_2 ATTRIBUTE_NORETURN;
static void fatal_expected_char PARAMS ((FILE *, int, int)) ATTRIBUTE_NORETURN;
static void read_name PARAMS ((char *, FILE *));
static char *read_string PARAMS ((struct obstack *, FILE *, int));
static char *read_quoted_string PARAMS ((struct obstack *, FILE *));
static char *read_braced_string PARAMS ((struct obstack *, FILE *));
static unsigned def_hash PARAMS ((const void *));
static int def_name_eq_p PARAMS ((const void *, const void *));
static void read_constants PARAMS ((FILE *infile, char *tmp_char));
/* Subroutines of read_rtx. */
/* The current line number for the file. */
int read_rtx_lineno = 1;
/* The filename for aborting with file and line. */
const char *read_rtx_filename = "<unknown>";
static void
fatal_with_file_and_line VPARAMS ((FILE *infile, const char *msg, ...))
{
#ifndef ANSI_PROTOTYPES
FILE *infile;
const char *msg;
#endif
va_list ap;
char context[64];
size_t i;
int c;
VA_START (ap, msg);
#ifndef ANSI_PROTOTYPES
infile = va_arg (ap, FILE *);
msg = va_arg (ap, const char *);
#endif
fprintf (stderr, "%s:%d: ", read_rtx_filename, read_rtx_lineno);
vfprintf (stderr, msg, ap);
putc ('\n', stderr);
/* Gather some following context. */
for (i = 0; i < sizeof(context)-1; ++i)
{
c = getc (infile);
if (c == EOF)
break;
if (c == '\r' || c == '\n')
break;
context[i] = c;
}
context[i] = '\0';
fprintf (stderr, "%s:%d: following context is `%s'\n",
read_rtx_filename, read_rtx_lineno, context);
va_end (ap);
exit (1);
}
/* Dump code after printing a message. Used when read_rtx finds
invalid data. */
static void
fatal_expected_char (infile, expected_c, actual_c)
FILE *infile;
int expected_c, actual_c;
{
fatal_with_file_and_line (infile, "expected character `%c', found `%c'",
expected_c, actual_c);
}
/* Read chars from INFILE until a non-whitespace char
and return that. Comments, both Lisp style and C style,
are treated as whitespace.
Tools such as genflags use this function. */
int
read_skip_spaces (infile)
FILE *infile;
{
register int c;
while (1)
{
c = getc (infile);
switch (c)
{
case '\n':
read_rtx_lineno++;
break;
case ' ': case '\t': case '\f': case '\r':
break;
case ';':
do
c = getc (infile);
while (c != '\n' && c != EOF);
read_rtx_lineno++;
break;
case '/':
{
register int prevc;
c = getc (infile);
if (c != '*')
fatal_expected_char (infile, '*', c);
prevc = 0;
while ((c = getc (infile)) && c != EOF)
{
if (c == '\n')
read_rtx_lineno++;
else if (prevc == '*' && c == '/')
break;
prevc = c;
}
}
break;
default:
return c;
}
}
}
/* Read an rtx code name into the buffer STR[].
It is terminated by any of the punctuation chars of rtx printed syntax. */
static void
read_name (str, infile)
char *str;
FILE *infile;
{
register char *p;
register int c;
c = read_skip_spaces(infile);
p = str;
while (1)
{
if (c == ' ' || c == '\n' || c == '\t' || c == '\f')
break;
if (c == ':' || c == ')' || c == ']' || c == '"' || c == '/'
|| c == '(' || c == '[')
{
ungetc (c, infile);
break;
}
*p++ = c;
c = getc (infile);
}
if (p == str)
fatal_with_file_and_line (infile, "missing name or number");
if (c == '\n')
read_rtx_lineno++;
*p = 0;
if (md_constants)
{
/* Do constant expansion. */
struct md_constant *def;
p = str;
do
{
struct md_constant tmp_def;
tmp_def.name = p;
def = htab_find (md_constants, &tmp_def);
if (def)
p = def->value;
} while (def);
if (p != str)
strcpy (str, p);
}
}
/* Read a double-quoted string onto the obstack. Caller has scanned
the leading quote. */
static char *
read_quoted_string (ob, infile)
struct obstack *ob;
FILE *infile;
{
int c;
while (1)
{
c = getc (infile); /* Read the string */
if (c == '\n')
read_rtx_lineno++;
else if (c == '\\')
{
c = getc (infile); /* Read the string */
/* \; makes stuff for a C string constant containing
newline and tab. */
if (c == ';')
{
obstack_grow (ob, "\\n\\t", 4);
continue;
}
else if (c == '\n')
/* \-newline: delete the backslash and update our idea of
the line number. */
read_rtx_lineno++;
else if (c == '\\' || c == '"')
; /* \", \\ are a literal quote and backslash. */
else
/* Backslash escapes we do not recognize are left unmolested.
They may be handled by the C compiler (e.g. \n, \t) */
{
ungetc (c, infile); /* put it back */
c = '\\';
}
}
else if (c == '"')
break;
obstack_1grow (ob, c);
}
obstack_1grow (ob, 0);
return obstack_finish (ob);
}
/* Read a braced string (a la Tcl) onto the obstack. Caller has
scanned the leading brace. Note that unlike quoted strings,
the outermost braces _are_ included in the string constant. */
static char *
read_braced_string (ob, infile)
struct obstack *ob;
FILE *infile;
{
int c;
int brace_depth = 1; /* caller-processed */
obstack_1grow (ob, '{');
while (brace_depth)
{
c = getc (infile); /* Read the string */
if (c == '\n')
read_rtx_lineno++;
else if (c == '{')
brace_depth++;
else if (c == '}')
brace_depth--;
else if (c == '\\')
{
c = getc (infile); /* Read the string */
/* \; makes stuff for a C string constant containing
newline and tab. */
if (c == ';')
{
obstack_grow (ob, "\\n\\t", 4);
continue;
}
else if (c == '\n')
/* \-newline: delete the backslash and update our idea of
the line number. */
read_rtx_lineno++;
else if (c == '\\')
; /* \\ is a literal backslash */
else
/* Backslash escapes we do not recognize are left unmolested.
They may be handled by the C compiler (e.g. \n, \t) */
{
ungetc (c, infile); /* put it back */
c = '\\';
}
}
obstack_1grow (ob, c);
}
obstack_1grow (ob, 0);
return obstack_finish (ob);
}
/* Read some kind of string constant. This is the high-level routine
used by read_rtx. It handles surrounding parentheses, leading star,
and dispatch to the appropriate string constant reader. */
static char *
read_string (ob, infile, star_if_braced)
struct obstack *ob;
FILE *infile;
int star_if_braced;
{
char *stringbuf;
int saw_paren = 0;
int c;
c = read_skip_spaces (infile);
if (c == '(')
{
saw_paren = 1;
c = read_skip_spaces (infile);
}
if (c == '"')
stringbuf = read_quoted_string (ob, infile);
else if (c == '{')
{
if (star_if_braced)
obstack_1grow (ob, '*');
stringbuf = read_braced_string (ob, infile);
}
else
fatal_with_file_and_line (infile, "expected `\"' or `{', found `%c'", c);
if (saw_paren)
{
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
return stringbuf;
}
/* Provide a version of a function to read a long long if the system does
not provide one. */
#if HOST_BITS_PER_WIDE_INT > HOST_BITS_PER_LONG && !defined(HAVE_ATOLL) && !defined(HAVE_ATOQ)
HOST_WIDE_INT
atoll(p)
const char *p;
{
int neg = 0;
HOST_WIDE_INT tmp_wide;
while (ISSPACE(*p))
p++;
if (*p == '-')
neg = 1, p++;
else if (*p == '+')
p++;
tmp_wide = 0;
while (ISDIGIT(*p))
{
HOST_WIDE_INT new_wide = tmp_wide*10 + (*p - '0');
if (new_wide < tmp_wide)
{
/* Return INT_MAX equiv on overflow. */
tmp_wide = (~(unsigned HOST_WIDE_INT)0) >> 1;
break;
}
tmp_wide = new_wide;
p++;
}
if (neg)
tmp_wide = -tmp_wide;
return tmp_wide;
}
#endif
/* Given a constant definition, return a hash code for its name. */
static unsigned
def_hash (def)
const void *def;
{
unsigned result, i;
const char *string = ((const struct md_constant *)def)->name;
for (result = i = 0;*string++ != '\0'; i++)
result += ((unsigned char) *string << (i % CHAR_BIT));
return result;
}
/* Given two constant definitions, return true if they have the same name. */
static int
def_name_eq_p (def1, def2)
const void *def1, *def2;
{
return ! strcmp (((const struct md_constant *)def1)->name,
((const struct md_constant *)def2)->name);
}
/* INFILE is a FILE pointer to read text from. TMP_CHAR is a buffer suitable
to read a name or number into. Process a define_constants directive,
starting with the optional space after the "define_constants". */
static void
read_constants (infile, tmp_char)
FILE *infile;
char *tmp_char;
{
int c;
htab_t defs;
c = read_skip_spaces (infile);
if (c != '[')
fatal_expected_char (infile, '[', c);
defs = md_constants;
if (! defs)
defs = htab_create (32, def_hash, def_name_eq_p, (htab_del) 0);
/* Disable constant expansion during definition processing. */
md_constants = 0;
while ( (c = read_skip_spaces (infile)) != ']')
{
struct md_constant *def;
void **entry_ptr;
if (c != '(')
fatal_expected_char (infile, '(', c);
def = xmalloc (sizeof (struct md_constant));
def->name = tmp_char;
read_name (tmp_char, infile);
entry_ptr = htab_find_slot (defs, def, TRUE);
if (! *entry_ptr)
def->name = xstrdup (tmp_char);
c = read_skip_spaces (infile);
ungetc (c, infile);
read_name (tmp_char, infile);
if (! *entry_ptr)
{
def->value = xstrdup (tmp_char);
*entry_ptr = def;
}
else
{
def = *entry_ptr;
if (strcmp (def->value, tmp_char))
fatal_with_file_and_line (infile,
"redefinition of %s, was %s, now %s",
def->name, def->value, tmp_char);
}
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
md_constants = defs;
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
/* For every constant definition, call CALLBACK with two arguments:
a pointer a pointer to the constant definition and INFO.
Stops when CALLBACK returns zero. */
void
traverse_md_constants (callback, info)
htab_trav callback;
void *info;
{
if (md_constants)
htab_traverse (md_constants, callback, info);
}
/* Read an rtx in printed representation from INFILE
and return an actual rtx in core constructed accordingly.
read_rtx is not used in the compiler proper, but rather in
the utilities gen*.c that construct C code from machine descriptions. */
rtx
read_rtx (infile)
FILE *infile;
{
register int i, j;
RTX_CODE tmp_code;
register const char *format_ptr;
/* tmp_char is a buffer used for reading decimal integers
and names of rtx types and machine modes.
Therefore, 256 must be enough. */
char tmp_char[256];
rtx return_rtx;
register int c;
int tmp_int;
HOST_WIDE_INT tmp_wide;
/* Obstack used for allocating RTL objects. */
static struct obstack rtl_obstack;
static int initialized;
/* Linked list structure for making RTXs: */
struct rtx_list
{
struct rtx_list *next;
rtx value; /* Value of this node. */
};
if (!initialized) {
obstack_init (&rtl_obstack);
initialized = 1;
}
again:
c = read_skip_spaces (infile); /* Should be open paren. */
if (c != '(')
fatal_expected_char (infile, '(', c);
read_name (tmp_char, infile);
tmp_code = UNKNOWN;
if (! strcmp (tmp_char, "define_constants"))
{
read_constants (infile, tmp_char);
goto again;
}
for (i = 0; i < NUM_RTX_CODE; i++)
if (! strcmp (tmp_char, GET_RTX_NAME (i)))
{
tmp_code = (RTX_CODE) i; /* get value for name */
break;
}
if (tmp_code == UNKNOWN)
fatal_with_file_and_line (infile, "unknown rtx code `%s'", tmp_char);
/* (NIL) stands for an expression that isn't there. */
if (tmp_code == NIL)
{
/* Discard the closeparen. */
while ((c = getc (infile)) && c != ')')
;
return 0;
}
/* If we end up with an insn expression then we free this space below. */
return_rtx = rtx_alloc (tmp_code);
format_ptr = GET_RTX_FORMAT (GET_CODE (return_rtx));
/* If what follows is `: mode ', read it and
store the mode in the rtx. */
i = read_skip_spaces (infile);
if (i == ':')
{
read_name (tmp_char, infile);
for (j = 0; j < NUM_MACHINE_MODES; j++)
if (! strcmp (GET_MODE_NAME (j), tmp_char))
break;
if (j == MAX_MACHINE_MODE)
fatal_with_file_and_line (infile, "unknown mode `%s'", tmp_char);
PUT_MODE (return_rtx, (enum machine_mode) j);
}
else
ungetc (i, infile);
for (i = 0; i < GET_RTX_LENGTH (GET_CODE (return_rtx)); i++)
switch (*format_ptr++)
{
/* 0 means a field for internal use only.
Don't expect it to be present in the input. */
case '0':
break;
case 'e':
case 'u':
XEXP (return_rtx, i) = read_rtx (infile);
break;
case 'V':
/* 'V' is an optional vector: if a closeparen follows,
just store NULL for this element. */
c = read_skip_spaces (infile);
ungetc (c, infile);
if (c == ')')
{
XVEC (return_rtx, i) = 0;
break;
}
/* Now process the vector. */
case 'E':
{
/* Obstack to store scratch vector in. */
struct obstack vector_stack;
int list_counter = 0;
rtvec return_vec = NULL_RTVEC;
c = read_skip_spaces (infile);
if (c != '[')
fatal_expected_char (infile, '[', c);
/* add expressions to a list, while keeping a count */
obstack_init (&vector_stack);
while ((c = read_skip_spaces (infile)) && c != ']')
{
ungetc (c, infile);
list_counter++;
obstack_ptr_grow (&vector_stack, (PTR) read_rtx (infile));
}
if (list_counter > 0)
{
return_vec = rtvec_alloc (list_counter);
memcpy (&return_vec->elem[0], obstack_finish (&vector_stack),
list_counter * sizeof (rtx));
}
XVEC (return_rtx, i) = return_vec;
obstack_free (&vector_stack, NULL);
/* close bracket gotten */
}
break;
case 'S':
/* 'S' is an optional string: if a closeparen follows,
just store NULL for this element. */
c = read_skip_spaces (infile);
ungetc (c, infile);
if (c == ')')
{
XSTR (return_rtx, i) = 0;
break;
}
case 's':
{
char *stringbuf;
/* The output template slot of a DEFINE_INSN,
DEFINE_INSN_AND_SPLIT, or DEFINE_PEEPHOLE automatically
gets a star inserted as its first character, if it is
written with a brace block instead of a string constant. */
int star_if_braced =
((i == 3 && (GET_CODE (return_rtx) == DEFINE_INSN
|| GET_CODE (return_rtx) == DEFINE_INSN_AND_SPLIT))
|| (i == 2 && GET_CODE (return_rtx) == DEFINE_PEEPHOLE));
stringbuf = read_string (&rtl_obstack, infile, star_if_braced);
/* For insn patterns, we want to provide a default name
based on the file and line, like "*foo.md:12", if the
given name is blank. These are only for define_insn and
define_insn_and_split, to aid debugging. */
if (*stringbuf == '\0'
&& i == 0
&& (GET_CODE (return_rtx) == DEFINE_INSN
|| GET_CODE (return_rtx) == DEFINE_INSN_AND_SPLIT))
{
char line_name[20];
const char *fn = (read_rtx_filename ? read_rtx_filename : "rtx");
const char *slash;
for (slash = fn; *slash; slash ++)
if (*slash == '/' || *slash == '\\' || *slash == ':')
fn = slash + 1;
obstack_1grow (&rtl_obstack, '*');
obstack_grow (&rtl_obstack, fn, strlen (fn));
sprintf (line_name, ":%d", read_rtx_lineno);
obstack_grow (&rtl_obstack, line_name, strlen (line_name)+1);
stringbuf = (char *) obstack_finish (&rtl_obstack);
}
XSTR (return_rtx, i) = stringbuf;
}
break;
case 'w':
read_name (tmp_char, infile);
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
tmp_wide = atoi (tmp_char);
#else
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
tmp_wide = atol (tmp_char);
#else
/* Prefer atoll over atoq, since the former is in the ISO C99 standard.
But prefer not to use our hand-rolled function above either. */
#if defined(HAVE_ATOLL) || !defined(HAVE_ATOQ)
tmp_wide = atoll (tmp_char);
#else
tmp_wide = atoq (tmp_char);
#endif
#endif
#endif
XWINT (return_rtx, i) = tmp_wide;
break;
case 'i':
case 'n':
read_name (tmp_char, infile);
tmp_int = atoi (tmp_char);
XINT (return_rtx, i) = tmp_int;
break;
default:
fprintf (stderr,
"switch format wrong in rtl.read_rtx(). format was: %c.\n",
format_ptr[-1]);
fprintf (stderr, "\tfile position: %ld\n", ftell (infile));
abort ();
}
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
return return_rtx;
}

616
gcc/rtl.c
View File

@ -1,5 +1,5 @@
/* Allocate and read RTL for GNU C Compiler.
Copyright (C) 1987, 1988, 1991, 1994, 1997, 1998, 1999, 2000
/* RTL utility routines.
Copyright (C) 1987, 1988, 1991, 1994, 1997, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
This file is part of GNU CC.
@ -19,19 +19,11 @@ 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. */
#include "config.h"
#include "system.h"
#include "rtl.h"
#include "real.h"
#include "bitmap.h"
#include "ggc.h"
#include "obstack.h"
#include "toplev.h"
#include "hashtab.h"
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
/* Calculate the format for CONST_DOUBLE. This depends on the relative
@ -292,17 +284,6 @@ const char * const reg_note_name[] =
"REG_NON_LOCAL_GOTO"
};
static htab_t md_constants;
static void fatal_with_file_and_line PARAMS ((FILE *, const char *, ...))
ATTRIBUTE_PRINTF_2 ATTRIBUTE_NORETURN;
static void fatal_expected_char PARAMS ((FILE *, int, int)) ATTRIBUTE_NORETURN;
static void read_name PARAMS ((char *, FILE *));
static char *read_string PARAMS ((struct obstack *, FILE *));
static unsigned def_hash PARAMS ((const void *));
static int def_name_eq_p PARAMS ((const void *, const void *));
static void read_constants PARAMS ((FILE *infile, char *tmp_char));
/* Allocate an rtx vector of N elements.
Store the length, and initialize all elements to zero. */
@ -690,599 +671,6 @@ rtx_equal_p (x, y)
return 1;
}
/* Subroutines of read_rtx. */
/* The current line number for the file. */
int read_rtx_lineno = 1;
/* The filename for aborting with file and line. */
const char *read_rtx_filename = "<unknown>";
static void
fatal_with_file_and_line VPARAMS ((FILE *infile, const char *msg, ...))
{
#ifndef ANSI_PROTOTYPES
FILE *infile;
const char *msg;
#endif
va_list ap;
char context[64];
size_t i;
int c;
VA_START (ap, msg);
#ifndef ANSI_PROTOTYPES
infile = va_arg (ap, FILE *);
msg = va_arg (ap, const char *);
#endif
fprintf (stderr, "%s:%d: ", read_rtx_filename, read_rtx_lineno);
vfprintf (stderr, msg, ap);
putc ('\n', stderr);
/* Gather some following context. */
for (i = 0; i < sizeof(context)-1; ++i)
{
c = getc (infile);
if (c == EOF)
break;
if (c == '\r' || c == '\n')
break;
context[i] = c;
}
context[i] = '\0';
fprintf (stderr, "%s:%d: following context is `%s'\n",
read_rtx_filename, read_rtx_lineno, context);
va_end (ap);
exit (1);
}
/* Dump code after printing a message. Used when read_rtx finds
invalid data. */
static void
fatal_expected_char (infile, expected_c, actual_c)
FILE *infile;
int expected_c, actual_c;
{
fatal_with_file_and_line (infile, "expected character `%c', found `%c'",
expected_c, actual_c);
}
/* Read chars from INFILE until a non-whitespace char
and return that. Comments, both Lisp style and C style,
are treated as whitespace.
Tools such as genflags use this function. */
int
read_skip_spaces (infile)
FILE *infile;
{
register int c;
while (1)
{
c = getc (infile);
switch (c)
{
case '\n':
read_rtx_lineno++;
break;
case ' ': case '\t': case '\f': case '\r':
break;
case ';':
do
c = getc (infile);
while (c != '\n' && c != EOF);
read_rtx_lineno++;
break;
case '/':
{
register int prevc;
c = getc (infile);
if (c != '*')
fatal_expected_char (infile, '*', c);
prevc = 0;
while ((c = getc (infile)) && c != EOF)
{
if (c == '\n')
read_rtx_lineno++;
else if (prevc == '*' && c == '/')
break;
prevc = c;
}
}
break;
default:
return c;
}
}
}
/* Read an rtx code name into the buffer STR[].
It is terminated by any of the punctuation chars of rtx printed syntax. */
static void
read_name (str, infile)
char *str;
FILE *infile;
{
register char *p;
register int c;
c = read_skip_spaces(infile);
p = str;
while (1)
{
if (c == ' ' || c == '\n' || c == '\t' || c == '\f')
break;
if (c == ':' || c == ')' || c == ']' || c == '"' || c == '/'
|| c == '(' || c == '[')
{
ungetc (c, infile);
break;
}
*p++ = c;
c = getc (infile);
}
if (p == str)
fatal_with_file_and_line (infile, "missing name or number");
if (c == '\n')
read_rtx_lineno++;
*p = 0;
if (md_constants)
{
/* Do constant expansion. */
struct md_constant *def;
p = str;
do
{
struct md_constant tmp_def;
tmp_def.name = p;
def = htab_find (md_constants, &tmp_def);
if (def)
p = def->value;
} while (def);
if (p != str)
strcpy (str, p);
}
}
/* Read a double-quoted string onto the obstack. */
static char *
read_string (ob, infile)
struct obstack *ob;
FILE *infile;
{
char *stringbuf;
int saw_paren = 0;
int c;
c = read_skip_spaces (infile);
if (c == '(')
{
saw_paren = 1;
c = read_skip_spaces (infile);
}
if (c != '"')
fatal_expected_char (infile, '"', c);
while (1)
{
c = getc (infile); /* Read the string */
if (c == '\n')
read_rtx_lineno++;
else if (c == '\\')
{
c = getc (infile); /* Read the string */
/* \; makes stuff for a C string constant containing
newline and tab. */
if (c == ';')
{
obstack_grow (ob, "\\n\\t", 4);
continue;
}
if (c == '\n')
read_rtx_lineno++;
}
else if (c == '"')
break;
obstack_1grow (ob, c);
}
obstack_1grow (ob, 0);
stringbuf = (char *) obstack_finish (ob);
if (saw_paren)
{
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
return stringbuf;
}
/* Provide a version of a function to read a long long if the system does
not provide one. */
#if HOST_BITS_PER_WIDE_INT > HOST_BITS_PER_LONG && !defined(HAVE_ATOLL) && !defined(HAVE_ATOQ)
HOST_WIDE_INT
atoll(p)
const char *p;
{
int neg = 0;
HOST_WIDE_INT tmp_wide;
while (ISSPACE(*p))
p++;
if (*p == '-')
neg = 1, p++;
else if (*p == '+')
p++;
tmp_wide = 0;
while (ISDIGIT(*p))
{
HOST_WIDE_INT new_wide = tmp_wide*10 + (*p - '0');
if (new_wide < tmp_wide)
{
/* Return INT_MAX equiv on overflow. */
tmp_wide = (~(unsigned HOST_WIDE_INT)0) >> 1;
break;
}
tmp_wide = new_wide;
p++;
}
if (neg)
tmp_wide = -tmp_wide;
return tmp_wide;
}
#endif
/* Given a constant definition, return a hash code for its name. */
static unsigned
def_hash (def)
const void *def;
{
unsigned result, i;
const char *string = ((const struct md_constant *)def)->name;
for (result = i = 0;*string++ != '\0'; i++)
result += ((unsigned char) *string << (i % CHAR_BIT));
return result;
}
/* Given two constant definitions, return true if they have the same name. */
static int
def_name_eq_p (def1, def2)
const void *def1, *def2;
{
return ! strcmp (((const struct md_constant *)def1)->name,
((const struct md_constant *)def2)->name);
}
/* INFILE is a FILE pointer to read text from. TMP_CHAR is a buffer suitable
to read a name or number into. Process a define_constants directive,
starting with the optional space after the "define_constants". */
static void
read_constants (infile, tmp_char)
FILE *infile;
char *tmp_char;
{
int c;
htab_t defs;
c = read_skip_spaces (infile);
if (c != '[')
fatal_expected_char (infile, '[', c);
defs = md_constants;
if (! defs)
defs = htab_create (32, def_hash, def_name_eq_p, (htab_del) 0);
/* Disable constant expansion during definition processing. */
md_constants = 0;
while ( (c = read_skip_spaces (infile)) != ']')
{
struct md_constant *def;
void **entry_ptr;
if (c != '(')
fatal_expected_char (infile, '(', c);
def = xmalloc (sizeof (struct md_constant));
def->name = tmp_char;
read_name (tmp_char, infile);
entry_ptr = htab_find_slot (defs, def, TRUE);
if (! *entry_ptr)
def->name = xstrdup (tmp_char);
c = read_skip_spaces (infile);
ungetc (c, infile);
read_name (tmp_char, infile);
if (! *entry_ptr)
{
def->value = xstrdup (tmp_char);
*entry_ptr = def;
}
else
{
def = *entry_ptr;
if (strcmp (def->value, tmp_char))
fatal_with_file_and_line (infile,
"redefinition of %s, was %s, now %s",
def->name, def->value, tmp_char);
}
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
md_constants = defs;
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
}
/* For every constant definition, call CALLBACK with two arguments:
a pointer a pointer to the constant definition and INFO.
Stops when CALLBACK returns zero. */
void
traverse_md_constants (callback, info)
htab_trav callback;
void *info;
{
if (md_constants)
htab_traverse (md_constants, callback, info);
}
/* Read an rtx in printed representation from INFILE
and return an actual rtx in core constructed accordingly.
read_rtx is not used in the compiler proper, but rather in
the utilities gen*.c that construct C code from machine descriptions. */
rtx
read_rtx (infile)
FILE *infile;
{
register int i, j;
RTX_CODE tmp_code;
register const char *format_ptr;
/* tmp_char is a buffer used for reading decimal integers
and names of rtx types and machine modes.
Therefore, 256 must be enough. */
char tmp_char[256];
rtx return_rtx;
register int c;
int tmp_int;
HOST_WIDE_INT tmp_wide;
/* Obstack used for allocating RTL objects. */
static struct obstack rtl_obstack;
static int initialized;
/* Linked list structure for making RTXs: */
struct rtx_list
{
struct rtx_list *next;
rtx value; /* Value of this node. */
};
if (!initialized) {
_obstack_begin (&rtl_obstack,0, 0,
(void *(*) PARAMS ((long))) xmalloc,
(void (*) PARAMS ((void *))) free);
initialized = 1;
}
again:
c = read_skip_spaces (infile); /* Should be open paren. */
if (c != '(')
fatal_expected_char (infile, '(', c);
read_name (tmp_char, infile);
tmp_code = UNKNOWN;
if (! strcmp (tmp_char, "define_constants"))
{
read_constants (infile, tmp_char);
goto again;
}
for (i = 0; i < NUM_RTX_CODE; i++)
if (! strcmp (tmp_char, GET_RTX_NAME (i)))
{
tmp_code = (RTX_CODE) i; /* get value for name */
break;
}
if (tmp_code == UNKNOWN)
fatal_with_file_and_line (infile, "unknown rtx code `%s'", tmp_char);
/* (NIL) stands for an expression that isn't there. */
if (tmp_code == NIL)
{
/* Discard the closeparen. */
while ((c = getc (infile)) && c != ')')
;
return 0;
}
/* If we end up with an insn expression then we free this space below. */
return_rtx = rtx_alloc (tmp_code);
format_ptr = GET_RTX_FORMAT (GET_CODE (return_rtx));
/* If what follows is `: mode ', read it and
store the mode in the rtx. */
i = read_skip_spaces (infile);
if (i == ':')
{
read_name (tmp_char, infile);
for (j = 0; j < NUM_MACHINE_MODES; j++)
if (! strcmp (GET_MODE_NAME (j), tmp_char))
break;
if (j == MAX_MACHINE_MODE)
fatal_with_file_and_line (infile, "unknown mode `%s'", tmp_char);
PUT_MODE (return_rtx, (enum machine_mode) j);
}
else
ungetc (i, infile);
for (i = 0; i < GET_RTX_LENGTH (GET_CODE (return_rtx)); i++)
switch (*format_ptr++)
{
/* 0 means a field for internal use only.
Don't expect it to be present in the input. */
case '0':
break;
case 'e':
case 'u':
XEXP (return_rtx, i) = read_rtx (infile);
break;
case 'V':
/* 'V' is an optional vector: if a closeparen follows,
just store NULL for this element. */
c = read_skip_spaces (infile);
ungetc (c, infile);
if (c == ')')
{
XVEC (return_rtx, i) = 0;
break;
}
/* Now process the vector. */
case 'E':
{
/* Obstack to store scratch vector in. */
struct obstack vector_stack;
int list_counter = 0;
rtvec return_vec = NULL_RTVEC;
c = read_skip_spaces (infile);
if (c != '[')
fatal_expected_char (infile, '[', c);
/* add expressions to a list, while keeping a count */
obstack_init (&vector_stack);
while ((c = read_skip_spaces (infile)) && c != ']')
{
ungetc (c, infile);
list_counter++;
obstack_ptr_grow (&vector_stack, (PTR) read_rtx (infile));
}
if (list_counter > 0)
{
return_vec = rtvec_alloc (list_counter);
memcpy (&return_vec->elem[0], obstack_finish (&vector_stack),
list_counter * sizeof (rtx));
}
XVEC (return_rtx, i) = return_vec;
obstack_free (&vector_stack, NULL);
/* close bracket gotten */
}
break;
case 'S':
/* 'S' is an optional string: if a closeparen follows,
just store NULL for this element. */
c = read_skip_spaces (infile);
ungetc (c, infile);
if (c == ')')
{
XSTR (return_rtx, i) = 0;
break;
}
case 's':
{
char *stringbuf;
stringbuf = read_string (&rtl_obstack, infile);
/* For insn patterns, we want to provide a default name
based on the file and line, like "*foo.md:12", if the
given name is blank. These are only for define_insn and
define_insn_and_split, to aid debugging. */
if (*stringbuf == '\0'
&& i == 0
&& (GET_CODE (return_rtx) == DEFINE_INSN
|| GET_CODE (return_rtx) == DEFINE_INSN_AND_SPLIT))
{
char line_name[20];
const char *fn = (read_rtx_filename ? read_rtx_filename : "rtx");
const char *slash;
for (slash = fn; *slash; slash ++)
if (*slash == '/' || *slash == '\\' || *slash == ':')
fn = slash + 1;
obstack_1grow (&rtl_obstack, '*');
obstack_grow (&rtl_obstack, fn, strlen (fn));
sprintf (line_name, ":%d", read_rtx_lineno);
obstack_grow (&rtl_obstack, line_name, strlen (line_name)+1);
stringbuf = (char *) obstack_finish (&rtl_obstack);
}
XSTR (return_rtx, i) = stringbuf;
}
break;
case 'w':
read_name (tmp_char, infile);
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_INT
tmp_wide = atoi (tmp_char);
#else
#if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
tmp_wide = atol (tmp_char);
#else
/* Prefer atoll over atoq, since the former is in the ISO C99 standard.
But prefer not to use our hand-rolled function above either. */
#if defined(HAVE_ATOLL) || !defined(HAVE_ATOQ)
tmp_wide = atoll (tmp_char);
#else
tmp_wide = atoq (tmp_char);
#endif
#endif
#endif
XWINT (return_rtx, i) = tmp_wide;
break;
case 'i':
case 'n':
read_name (tmp_char, infile);
tmp_int = atoi (tmp_char);
XINT (return_rtx, i) = tmp_int;
break;
default:
fprintf (stderr,
"switch format wrong in rtl.read_rtx(). format was: %c.\n",
format_ptr[-1]);
fprintf (stderr, "\tfile position: %ld\n", ftell (infile));
abort ();
}
c = read_skip_spaces (infile);
if (c != ')')
fatal_expected_char (infile, ')', c);
return return_rtx;
}
#if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007)
void
rtl_check_failed_bounds (r, n, file, line, func)