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-rw-r--r--gcc/doc/c-tree.texi10
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diff --git a/gcc/doc/c-tree.texi b/gcc/doc/c-tree.texi
index ad9cb94..9a1ee2f 100644
--- a/gcc/doc/c-tree.texi
+++ b/gcc/doc/c-tree.texi
@@ -2017,7 +2017,15 @@ always @code{a - a/b} where the division is as if computed by a
These nodes represent array accesses. The first operand is the array;
the second is the index. To calculate the address of the memory
accessed, you must scale the index by the size of the type of the array
-elements.
+elements. The type of these expressions must be the type of a component of
+the array.
+
+@item ARRAY_RANGE_REF
+These nodes represent access to a range (or ``slice'') of an array. The
+operands are the same as that for @code{ARRAY_REF} and have the same
+meanings. The type of these expressions must be an array whose component
+type is the same as that of the first operand. The range of that array
+type determines the amount of data these expressions access.
@item EXACT_DIV_EXPR
Document.