a sentence on spesh

Raku · Apr 12, 2014 · 8dbfac0 · 8dbfac0
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diff --git a/S99-glossary.pod b/S99-glossary.pod
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 =head1 TITLE
 
 Synopsis 99: Glossary
@@ -873,6 +872,12 @@ glass of ice water.
 
 =head2 spectest
 
+=head2 spesh
+
+A functionality of the MoarVM platform that uses run-time gathered data to
+improve commonly used pieces of bytecode. It is much like a JIT Compiler,
+except that those usually output machine code rather than bytecode.
+
 =head2 star
 
 See L</Rakudo *>.