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#ifndef __LINUX_COMPILER_H
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#define __LINUX_COMPILER_H
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#ifdef __CHECKER__
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# define __user         __attribute__((noderef, address_space(1)))
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# define __kernel       /* default address space */
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#else
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# define __user
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# define __kernel
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#endif
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#ifndef __ASSEMBLY__
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#if __GNUC__ > 3
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# include <linux/compiler-gcc+.h>       /* catch-all for GCC 4, 5, etc. */
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#elif __GNUC__ == 3
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# include <linux/compiler-gcc3.h>
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#elif __GNUC__ == 2
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# include <linux/compiler-gcc2.h>
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#else
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# error Sorry, your compiler is too old/not recognized.
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#endif
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#endif
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/* Intel compiler defines __GNUC__. So we will overwrite implementations
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 * coming from above header files here
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 */
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#ifdef __INTEL_COMPILER
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# include <linux/compiler-intel.h>
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#endif
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/*
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 * Generic compiler-dependent macros required for kernel
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 * build go below this comment. Actual compiler/compiler version
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 * specific implementations come from the above header files
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 */
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#define likely(x)       __builtin_expect(!!(x), 1)
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#define unlikely(x)     __builtin_expect(!!(x), 0)
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/*
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 * Allow us to mark functions as 'deprecated' and have gcc emit a nice
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 * warning for each use, in hopes of speeding the functions removal.
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 * Usage is:
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 *              int __deprecated foo(void)
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 */
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#ifndef __deprecated
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# define __deprecated           /* unimplemented */
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#endif
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/*
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 * Allow us to avoid 'defined but not used' warnings on functions and data,
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 * as well as force them to be emitted to the assembly file.
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 *
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 * As of gcc 3.3, static functions that are not marked with attribute((used))
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 * may be elided from the assembly file.  As of gcc 3.3, static data not so
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 * marked will not be elided, but this may change in a future gcc version.
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 *
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 * In prior versions of gcc, such functions and data would be emitted, but
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 * would be warned about except with attribute((unused)).
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 */
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#ifndef __attribute_used__
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# define __attribute_used__     /* unimplemented */
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#endif
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/*
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 * From the GCC manual:
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 *
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 * Many functions have no effects except the return value and their
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 * return value depends only on the parameters and/or global
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 * variables.  Such a function can be subject to common subexpression
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 * elimination and loop optimization just as an arithmetic operator
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 * would be.
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 * [...]
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 */
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#ifndef __attribute_pure__
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# define __attribute_pure__     /* unimplemented */
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#endif
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/* Optimization barrier */
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#ifndef barrier
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# define barrier() __memory_barrier()
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#endif
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#ifndef RELOC_HIDE
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# define RELOC_HIDE(ptr, off)                                   \
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  ({ unsigned long __ptr;                                       \
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     __ptr = (unsigned long) (ptr);                             \
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    (typeof(ptr)) (__ptr + (off)); })
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#endif
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#endif /* __LINUX_COMPILER_H */