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* doc/rtl.texi (Regs and Memory): Document (mem:BLK (scratch)).

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From-SVN: r51936
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Richard Henderson 2002-04-05 17:14:42 -08:00 committed by Richard Henderson
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@ -1,3 +1,7 @@
2002-04-05 Richard Henderson <rth@redhat.com>
* doc/rtl.texi (Regs and Memory): Document (mem:BLK (scratch)).
2002-04-05 Jakub Jeilnek <jakub@redhat.com>
* mklibgcc.in: Use $tmpmapfile, not tmp-$@.

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gcc/doc/rtl.texi
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@ -1558,6 +1558,10 @@ a unit of memory is accessed. @var{alias} specifies an alias set for the
reference. In general two items are in different alias sets if they cannot
reference the same memory address.
The construct @code{(mem:BLK (scratch))} is considered to alias all
other memories. Thus it may be used as a memory barrier in epilogue
stack deallocation patterns.
@findex addressof
@item (addressof:@var{m} @var{reg})
This RTX represents a request for the address of register @var{reg}. Its mode