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/* ===-- int_lib.h - configuration header for compiler-rt -----------------===
*
* The LLVM Compiler Infrastructure
*
* This file is dual licensed under the MIT and the University of Illinois Open
* Source Licenses. See LICENSE.TXT for details.
*
* ===----------------------------------------------------------------------===
*
* This file is a configuration header for compiler-rt.
* This file is not part of the interface of this library.
*
* ===----------------------------------------------------------------------===
*/
#ifndef INT_LIB_H
#define INT_LIB_H
/* Assumption: Signed integral is 2's complement. */
/* Assumption: Right shift of signed negative is arithmetic shift. */
/* Assumption: Endianness is little or big (not mixed). */
/* ABI macro definitions */
#if __ARM_EABI__
# define ARM_EABI_FNALIAS(aeabi_name, name) \
void __aeabi_##aeabi_name() __attribute__((alias("__" #name)));
# if !defined(__clang__) && defined(__GNUC__) && \
(__GNUC__ < 4 || __GNUC__ == 4 && __GNUC_MINOR__ < 5)
/* The pcs attribute was introduced in GCC 4.5.0 */
# define COMPILER_RT_ABI
# else
# define COMPILER_RT_ABI __attribute__((pcs("aapcs")))
# endif
#else
# define ARM_EABI_FNALIAS(aeabi_name, name)
# define COMPILER_RT_ABI
#endif
/* Include the standard compiler builtin headers we use functionality from. */
#include <limits.h>
#include <stdint.h>
#include <stdbool.h>
#include <float.h>
/* Include the commonly used internal type definitions. */
#include "int_types.h"
/* Include internal utility function declarations. */
#include "int_util.h"
/*
* Workaround for LLVM bug 11663. Prevent endless recursion in
* __c?zdi2(), where calls to __builtin_c?z() are expanded to
* __c?zdi2() instead of __c?zsi2().
*
* Instead of placing this workaround in c?zdi2.c, put it in this
* global header to prevent other C files from making the detour
* through __c?zdi2() as well.
*
* This problem has only been observed on FreeBSD for sparc64 and
* mips64 with GCC 4.2.1.
*/
#if defined(__FreeBSD__) && (defined(__sparc64__) || \
defined(__mips_n64) || defined(__mips_o64))
si_int __clzsi2(si_int);
si_int __ctzsi2(si_int);
#define __builtin_clz __clzsi2
#define __builtin_ctz __ctzsi2
#endif
#endif /* INT_LIB_H */
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