lib/builtins/int_lib.h

   1 /* ===-- int_lib.h - configuration header for compiler-rt  -----------------===
   2  *
   3  *                     The LLVM Compiler Infrastructure
   4  *
   5  * This file is dual licensed under the MIT and the University of Illinois Open
   6  * Source Licenses. See LICENSE.TXT for details.
   7  *
   8  * ===----------------------------------------------------------------------===
   9  *
  10  * This file is a configuration header for compiler-rt.
  11  * This file is not part of the interface of this library.
  12  *
  13  * ===----------------------------------------------------------------------===
  14  */
  15
  16 #ifndef INT_LIB_H
  17 #define INT_LIB_H
  18
  19 /* Assumption: Signed integral is 2's complement. */
  20 /* Assumption: Right shift of signed negative is arithmetic shift. */
  21 /* Assumption: Endianness is little or big (not mixed). */
  22
  23 /* ABI macro definitions */
  24
  25 /*
  26  * TODO define this appropriately for targets that require explicit export
  27  * declarations (i.e. Windows)
  28  */
  29 #define COMPILER_RT_EXPORT
  30
  31 #if __ARM_EABI__
  32 # define ARM_EABI_FNALIAS(aeabi_name, name)         \
  33   void __aeabi_##aeabi_name() __attribute__((alias("__" #name)));
  34 # define COMPILER_RT_ABI COMPILER_RT_EXPORT __attribute__((pcs("aapcs")))
  35 #else
  36 # define ARM_EABI_FNALIAS(aeabi_name, name)
  37 # define COMPILER_RT_ABI COMPILER_RT_EXPORT
  38 #endif
  39
  40 #if defined(__NetBSD__) && (defined(_KERNEL) || defined(_STANDALONE))
  41 /*
  42  * Kernel and boot environment can't use normal headers,
  43  * so use the equivalent system headers.
  44  */
  45 #  include <machine/limits.h>
  46 #  include <sys/stdint.h>
  47 #  include <sys/types.h>
  48 #else
  49 /* Include the standard compiler builtin headers we use functionality from. */
  50 #  include <limits.h>
  51 #  include <stdint.h>
  52 #  include <stdbool.h>
  53 #  include <float.h>
  54 #endif
  55
  56 /* Include the commonly used internal type definitions. */
  57 #include "int_types.h"
  58
  59 /* Include internal utility function declarations. */
  60 #include "int_util.h"
  61
  62 COMPILER_RT_ABI si_int __paritysi2(si_int a);
  63 COMPILER_RT_ABI si_int __paritydi2(di_int a);
  64
  65 COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
  66 COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b);
  67 COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d);
  68
  69 COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int* rem);
  70 COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int* rem);
  71 #ifdef CRT_HAS_128BIT
  72 COMPILER_RT_ABI si_int __clzti2(ti_int a);
  73 COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int* rem);
  74 #endif
  75
  76 #endif /* INT_LIB_H */