2005-06-15 Andrew Pinski <pinskia@physics.uc.edu>

[pf3gnuchains/gcc-fork.git] / gcc / tree.def

diff --git a/gcc/tree.def b/gcc/tree.def
index 3806f5b..b8d5a36 100644 (file)
--- a/gcc/tree.def
+++ b/gcc/tree.def
@@ -935,6 +935,18 @@ DEFTREECODE (WITH_SIZE_EXPR, "with_size_expr", tcc_expression, 2)
    generated by the builtin targetm.vectorize.mask_for_load_builtin_decl.  */
 DEFTREECODE (REALIGN_LOAD_EXPR, "realign_load", tcc_expression, 3)
 
+/* Low-level memory addressing.  Operands are SYMBOL (static or global
+   variable), BASE (register), INDEX (register), STEP (integer constant),
+   OFFSET (integer constant).  Corresponding address is
+   SYMBOL + BASE + STEP * INDEX + OFFSET.  Only variations and values valid on
+   the target are allowed.
+   
+   The sixth argument is the reference to the original memory access, which
+   is preserved for the purposes of the RTL alias analysis.  The seventh
+   argument is a tag representing results of the tree level alias analysis.  */
+
+DEFTREECODE (TARGET_MEM_REF, "target_mem_ref", tcc_reference, 7)
+
 /*
 Local variables:
 mode:c