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rtl.texi (mem): Add documentation for alias-set argument to RTX `mem'.

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* rtl.texi (mem): Add documentation for alias-set argument
	to RTX `mem'.

From-SVN: r30589
This commit is contained in:
Diego Novillo 1999-11-19 17:23:37 +00:00 committed by Diego Novillo
parent e5315fad4d
commit 14592a41e8
2 changed files with 9 additions and 2 deletions
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5
gcc/ChangeLog
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@ -8,6 +8,11 @@ Fri Nov 19 10:41:15 GMT 1999 Nathan Sidwell <nathan@acm.org>
(invalidate_skipped_set): Call it unconditionally. (invalidate_skipped_set): Call it unconditionally.
(cse_set_around_loop): Likewise. (cse_set_around_loop): Likewise.
Thu Nov 18 17:29:34 MST 1999 Diego Novillo <dnovillo@cygnus.com>
* rtl.texi (mem): Add documentation for alias-set argument
to RTX `mem'.
Fri Nov 18 13:39:22 CET 1999 Jan Hubicka <hubicka@freesoft.cz> Fri Nov 18 13:39:22 CET 1999 Jan Hubicka <hubicka@freesoft.cz>
* i386.h (struct_processor_costs): New fileds int_load, int_store, * i386.h (struct_processor_costs): New fileds int_load, int_store,

6
gcc/rtl.texi
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@ -1293,10 +1293,12 @@ All instructions that do not jump alter the program counter implicitly
by incrementing it, but there is no need to mention this in the RTL. by incrementing it, but there is no need to mention this in the RTL.
@findex mem @findex mem
@item (mem:@var{m} @var{addr}) @item (mem:@var{m} @var{addr} @var{alias})
This RTX represents a reference to main memory at an address This RTX represents a reference to main memory at an address
represented by the expression @var{addr}. @var{m} specifies how large represented by the expression @var{addr}. @var{m} specifies how large
a unit of memory is accessed. 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.
@findex addressof @findex addressof
@item (addressof:@var{m} @var{reg}) @item (addressof:@var{m} @var{reg})