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-rw-r--r--system/doc/efficiency_guide/myths.xml5
1 files changed, 5 insertions, 0 deletions
diff --git a/system/doc/efficiency_guide/myths.xml b/system/doc/efficiency_guide/myths.xml
index 168aa3d35c..778cd06c09 100644
--- a/system/doc/efficiency_guide/myths.xml
+++ b/system/doc/efficiency_guide/myths.xml
@@ -152,6 +152,11 @@ vanilla_reverse([], Acc) ->
<p>That was once true, but from R6B the BEAM compiler can see
that a variable is not used.</p>
+
+ <p>Similarly, trivial transformations on the source-code level
+ such as converting a <c>case</c> statement to clauses at the
+ top-level of the function seldom makes any difference to the
+ generated code.</p>
</section>
<section>