CVS commit: src/sys/sys

[Martin Husemann <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Wed Jan  7 19:38:11 UTC 2004

Modified Files:
        src/sys/sys: cdefs.h

Log Message:
Add a __insn_barrier() macro to stop the optimizer from moving code
accross the barrier or assume liveness of register values.
Suggested by Jason Thorpe and Steve Woodford.


To generate a diff of this commit:
cvs rdiff -r1.50 -r1.51 src/sys/sys/cdefs.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.