Document NAME as a special member of def records that should
not be defined anywhere else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142527
91177308-0d34-0410-b5e6-
96231b3b80d8
key feature of TableGen is that it allows the end-user to define the
abstractions they prefer to use when describing their information.</p>
+<p>Each def record has a special entry called "NAME." This is the
+name of the def ("ADD32rr" above). In the general case def names can
+be formed from various kinds of string processing expressions and NAME
+resolves to the final value obtained after resolving all of those
+expressions. The user may refer to NAME anywhere she desires to use
+the ultimate name of the def. NAME should not be defined anywhere
+else in user code to avoid conflict problems.</p>
+
</div>
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