not access memory or does not write to memory, add it to the relevant list
of functions.</li>
-<li><tt>llvm/lib/Transforms/Utils/Local.cpp</tt>: If it is possible to constant
-fold your intrinsic, add support to it in the <tt>canConstantFoldCallTo</tt> and
-<tt>ConstantFoldCall</tt> functions.</li>
+<li><tt>llvm/lib/Analysis/ConstantFolding.cpp</tt>: If it is possible to
+ constant fold your intrinsic, add support to it in the
+ <tt>canConstantFoldCallTo</tt> and <tt>ConstantFoldCall</tt> functions.</li>
+
+<li><tt>llvm/lib/Transforms/Utils/Local.cpp</tt>: If your intrinsic has no side-
+ effects, add it to the list of intrinsics in the
+ <tt>isInstructionTriviallyDead</tt> function.</li>
<li>Test your intrinsic</li>