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authordnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>1999-11-19 17:23:37 +0000
committerdnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4>1999-11-19 17:23:37 +0000
commit42d1756115c70d1ac0530db6a719c1f2cb292cc5 (patch)
tree065a2c9c7a42b038403395c651f8fc6ba9e38da8 /gcc/rtl.texi
parenta92ef3a865ed6bbecac4888bf396b6a54399060f (diff)
downloadgcc-42d1756115c70d1ac0530db6a719c1f2cb292cc5.tar.gz
* rtl.texi (mem): Add documentation for alias-set argument
to RTX `mem'. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@30589 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/rtl.texi')
-rw-r--r--gcc/rtl.texi6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/rtl.texi b/gcc/rtl.texi
index 6ad3b8a33c1..0901aa75bf4 100644
--- a/gcc/rtl.texi
+++ b/gcc/rtl.texi
@@ -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.
@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
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
@item (addressof:@var{m} @var{reg})