gengenrtl.c File Reference

#include "bconfig.h"
#include "system.h"
#include "rtl.def"

Include dependency graph for gengenrtl.c:

Data Structures
struct	rtx_definition

Macros
#define	CONST_DOUBLE_FORMAT   ""
#define	DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS)   { #ENUM, NAME, FORMAT },
#define	NUM_RTX_CODE   ARRAY_SIZE (defs)

Functions
static const char *	type_from_format ()
static const char *	accessor_from_format ()
static int	special_format ()
static int	special_rtx ()
static int	excluded_rtx ()
static void	find_formats ()
static void	genmacro ()
static void	gendef ()
static void	genlegend ()
static void	genheader ()
int	main ()

Variables
static struct rtx_definition	defs []
static const char *	formats [NUM_RTX_CODE]

---

Macro Definition Documentation

#define CONST_DOUBLE_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 DEF_RTL_EXPR	(		ENUM,
			NAME,
			FORMAT,
			CLASS
	)		{ #ENUM, NAME, FORMAT },

#define NUM_RTX_CODE   ARRAY_SIZE (defs)

Referenced by cmp_c_test(), excluded_rtx(), maybe_both_true_2(), and valid_predicate_name_p().

---

Function Documentation

static const char* accessor_from_format ( )

static

Decode a format letter into the proper accessor function.

static int excluded_rtx ( )

static

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).

References NUM_RTX_CODE.

static void find_formats ( )

static

Place a list of all format specifiers we use into the array FORMAT.

static void gendef ( )

static

Generate the code for the function to generate RTL whose format is FORMAT.

Start by writing the definition of the function name and the types of the arguments.

 Now write out the body of the function itself, which allocates
 the memory and initializes it.   

static void genheader ( )

static

Generate the text of the header file we make, genrtl.h.

static void genlegend ( )

static

Generate the documentation header for files we write.

static void genmacro ( )

static

Generate macros to generate RTL of code IDX using the functions we write.

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.

   Don't define a macro for this code.   

int main

(

)

This is the main program.

static int special_format ( )

static

Return nonzero if we should ignore FMT, an RTL format, when making the list of formats we write routines to create.

static int special_rtx ( )

static

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 const char* type_from_format ( )

static

Decode a format letter into a C type string.

References gcc_unreachable.

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Variable Documentation

struct rtx_definition defs[]

static

const char* formats[NUM_RTX_CODE]

static