builtins.c File Reference

#include <unistd.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for builtins.c:

Go to the source code of this file.

Macros
#define	_FORTIFY_SOURCE   0
#define	PRINT_BUF_SIZE   4096
#define	APPEND(str)
#define	PRINT_SCALAR(fmt, type)
#define	PRINT_VECTOR(fmt, type)

Typedefs
typedef int	Bool

Functions
void	__do_print (const char *format, const char *types, int width, uint64_t mask, void **args)
int	__num_cores ()

Macro Definition Documentation

_FORTIFY_SOURCE

#define _FORTIFY_SOURCE   0

Definition at line 63 of file builtins.c.

APPEND

#define APPEND

(

str

)

Value:

do {                                                                                                               \
        int offset = bufp - &printString[0];                                                                           \
        *bufp = '\0';                                                                                                  \
        strncat(bufp, str, PRINT_BUF_SIZE - offset);                                                                   \
        bufp += strlen(str);                                                                                           \
        if (bufp >= &printString[PRINT_BUF_SIZE])                                                                      \
            goto done;                                                                                                 \
    } while (0) /* eat semicolon */

Definition at line 87 of file builtins.c.

Referenced by __do_print().

PRINT_BUF_SIZE

#define PRINT_BUF_SIZE   4096

Definition at line 85 of file builtins.c.

Referenced by __do_print().

PRINT_SCALAR

#define PRINT_SCALAR	(		fmt,
			type
	)

Value:

sprintf(tmpBuf, fmt, *((type *)ptr));                                                                              \
    APPEND(tmpBuf);                                                                                                    \
    break

Definition at line 97 of file builtins.c.

Referenced by __do_print().

PRINT_VECTOR

#define PRINT_VECTOR	(		fmt,
			type
	)

Value:

*bufp++ = '[';                                                                                                     \
    if (bufp == &printString[PRINT_BUF_SIZE])                                                                          \
        break;                                                                                                         \
    for (int i = 0; i < width; ++i) {                                                                                  \
        /* only print the value if the current lane is executing */                                                    \
        if (mask & (1ull << i))                                                                                        \
            sprintf(tmpBuf, fmt, ((type *)ptr)[i]);                                                                    \
        else                                                                                                           \
            sprintf(tmpBuf, "((" fmt "))", ((type *)ptr)[i]);                                                          \
        APPEND(tmpBuf);                                                                                                \
        *bufp++ = (i != width - 1 ? ',' : ']');                                                                        \
    }                                                                                                                  \
    break

Definition at line 102 of file builtins.c.

Referenced by __do_print().

Typedef Documentation

Bool

typedef int Bool

Definition at line 83 of file builtins.c.

Function Documentation

__do_print()

void __do_print	(	const char *	format,
		const char *	types,
		int	width,
		uint64_t	mask,
		void **	args
	)

This function is called by PrintStmt to do the work of printing values from ispc programs. Note that the function signature here must match the parameters that PrintStmt::EmitCode() generates.

Parameters

format	Print format string
types	Encoded types of the values being printed. (See lEncodeType()).
width	Vector width of the compilation target
mask	Current lane mask when the print statemnt is called
args	Array of pointers to the values to be printed

Definition at line 128 of file builtins.c.

References __num_cores(), APPEND, PRINT_BUF_SIZE, PRINT_SCALAR, and PRINT_VECTOR.

__num_cores()

int __num_cores

(

)

Definition at line 211 of file builtins.c.

Referenced by __do_print().