1 /* ===-- int_lib.h - configuration header for compiler-rt -----------------===
3 * The LLVM Compiler Infrastructure
5 * This file is dual licensed under the MIT and the University of Illinois Open
6 * Source Licenses. See LICENSE.TXT for details.
8 * ===----------------------------------------------------------------------===
10 * This file is a configuration header for compiler-rt.
11 * This file is not part of the interface of this library.
13 * ===----------------------------------------------------------------------===
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). */
23 /* ABI macro definitions */
26 # define ARM_EABI_FNALIAS(aeabi_name, name) \
27 void __aeabi_##aeabi_name() __attribute__((alias("__" #name)));
29 # if !defined(__clang__) && defined(__GNUC__) && \
30 (__GNUC__ < 4 || __GNUC__ == 4 && __GNUC_MINOR__ < 5)
31 /* The pcs attribute was introduced in GCC 4.5.0 */
32 # define COMPILER_RT_ABI
34 # define COMPILER_RT_ABI __attribute__((pcs("aapcs")))
38 # define ARM_EABI_FNALIAS(aeabi_name, name)
39 # if defined(__arm__) && defined(_WIN32)
40 # define COMPILER_RT_ABI __attribute__((pcs("aapcs")))
42 # define COMPILER_RT_ABI
46 #if defined(__NetBSD__) && (defined(_KERNEL) || defined(_STANDALONE))
48 * Kernel and boot environment can't use normal headers,
49 * so use the equivalent system headers.
51 # include <machine/limits.h>
52 # include <sys/stdint.h>
53 # include <sys/types.h>
55 /* Include the standard compiler builtin headers we use functionality from. */
62 /* Include the commonly used internal type definitions. */
63 #include "int_types.h"
65 /* Include internal utility function declarations. */
69 * Workaround for LLVM bug 11663. Prevent endless recursion in
70 * __c?zdi2(), where calls to __builtin_c?z() are expanded to
71 * __c?zdi2() instead of __c?zsi2().
73 * Instead of placing this workaround in c?zdi2.c, put it in this
74 * global header to prevent other C files from making the detour
75 * through __c?zdi2() as well.
77 * This problem has only been observed on FreeBSD for sparc64 and
78 * mips64 with GCC 4.2.1.
80 #if defined(__FreeBSD__) && (defined(__sparc64__) || \
81 defined(__mips_n64) || defined(__mips_o64))
82 si_int __clzsi2(si_int);
83 si_int __ctzsi2(si_int);
84 #define __builtin_clz __clzsi2
85 #define __builtin_ctz __ctzsi2
86 #endif /* FreeBSD && (sparc64 || mips_n64 || mips_o64) */
88 COMPILER_RT_ABI si_int __paritysi2(si_int a);
89 COMPILER_RT_ABI si_int __paritydi2(di_int a);
91 COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
92 COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b);
93 COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d);
95 COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int* rem);
96 COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int* rem);
98 COMPILER_RT_ABI si_int __clzti2(ti_int a);
99 COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int* rem);
102 #endif /* INT_LIB_H */