* doc/md.texi (Standard Pattern Names): Document blockage pattern.
From-SVN: r121268
This commit is contained in:
parent
7217a9eb9f
commit
b6bd337183
|
@ -1,3 +1,7 @@
|
|||
2007-01-28 David Edelsohn <edelsohn@gnu.org>
|
||||
|
||||
* doc/md.texi (Standard Pattern Names): Document blockage pattern.
|
||||
|
||||
2007-01-28 Zdenek Dvorak <dvorakz@suse.cz>
|
||||
|
||||
* tree-ssa-loop-unswitch.c: Include tree-inline.h.
|
||||
|
|
|
@ -4704,6 +4704,13 @@ respectively, a low or moderate degree of temporal locality.
|
|||
Targets that do not support write prefetches or locality hints can ignore
|
||||
the values of operands 1 and 2.
|
||||
|
||||
@cindex @code{blockage} instruction pattern
|
||||
@item @samp{blockage}
|
||||
|
||||
This pattern defines a pseudo insn that prevents the instruction
|
||||
scheduler from moving instructions across the boundary defined by the
|
||||
blockage insn. Normally an UNSPEC_VOLATILE pattern.
|
||||
|
||||
@cindex @code{memory_barrier} instruction pattern
|
||||
@item @samp{memory_barrier}
|
||||
|
||||
|
|
Loading…
Reference in New Issue