19 lines
519 B
C
19 lines
519 B
C
/* $NetBSD: cdefs.h,v 1.9 2003/11/16 11:07:57 pk Exp $ */
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#ifndef _MACHINE_CDEFS_H_
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#define _MACHINE_CDEFS_H_
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#ifdef __GNUC__
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/*
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* A statement designed to tell the compiler not to re-order instructions
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* across this barrier. It does not generate any code by itself and the
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* harmless `clobber' of %g0 prevents other side-effects such as re-loading
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* registers from memory.
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*/
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#define __insn_barrier() __asm __volatile("": : : "g0")
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#else
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#define __insn_barrier() /*void*/
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#endif
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#endif /* !_MACHINE_CDEFS_H_ */
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