[mirror_ubuntu-artful-kernel.git] / include / linux / compiler-intel.h

#ifndef __LINUX_COMPILER_H
#error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
#endif

#ifdef __ECC

/* Some compiler specific definitions are overwritten here
 * for Intel ECC compiler
 */

#include <asm/intrinsics.h>

/* Intel ECC compiler doesn't support gcc specific asm stmts.
 * It uses intrinsics to do the equivalent things.
 */
#undef barrier
#undef RELOC_HIDE
#undef OPTIMIZER_HIDE_VAR

#define barrier() __memory_barrier()

#define RELOC_HIDE(ptr, off)					\
  ({ unsigned long __ptr;					\
     __ptr = (unsigned long) (ptr);				\
    (typeof(ptr)) (__ptr + (off)); })

/* This should act as an optimization barrier on var.
 * Given that this compiler does not have inline assembly, a compiler barrier
 * is the best we can do.
 */
#define OPTIMIZER_HIDE_VAR(var) barrier()

/* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
#define __must_be_array(a) 0

#endif

#ifndef __HAVE_BUILTIN_BSWAP16__
/* icc has this, but it's called _bswap16 */
#define __HAVE_BUILTIN_BSWAP16__
#define __builtin_bswap16 _bswap16
#endif
Commit	Line	Data
94f582f8 RD	1	#ifndef __LINUX_COMPILER_H
	2	#error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
	3	#endif
1da177e4 LT	4
	5	#ifdef __ECC
	6
	7	/* Some compiler specific definitions are overwritten here
	8	* for Intel ECC compiler
	9	*/
	10
	11	#include <asm/intrinsics.h>
	12
	13	/* Intel ECC compiler doesn't support gcc specific asm stmts.
	14	* It uses intrinsics to do the equivalent things.
	15	*/
	16	#undef barrier
	17	#undef RELOC_HIDE
fe8c8a12	18	#undef OPTIMIZER_HIDE_VAR
1da177e4 LT	19
	20	#define barrier() __memory_barrier()
	21
	22	#define RELOC_HIDE(ptr, off) \
	23	({ unsigned long __ptr; \
	24	__ptr = (unsigned long) (ptr); \
	25	(typeof(ptr)) (__ptr + (off)); })
	26
fe8c8a12 CEB	27	/* This should act as an optimization barrier on var.
	28	* Given that this compiler does not have inline assembly, a compiler barrier
	29	* is the best we can do.
	30	*/
	31	#define OPTIMIZER_HIDE_VAR(var) barrier()
	32
c5e631cf RR	33	/* Intel ECC compiler doesn't support __builtin_types_compatible_p() */
	34	#define __must_be_array(a) 0
	35
1da177e4	36	#endif
94909914	37
cf66bb93 DW	38	#ifndef __HAVE_BUILTIN_BSWAP16__
	39	/* icc has this, but it's called _bswap16 */
	40	#define __HAVE_BUILTIN_BSWAP16__
	41	#define __builtin_bswap16 _bswap16
	42	#endif
	43