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got confused again 

llvm-svn: 74514
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Chris Lattner 2009-06-30 06:27:54 +00:00
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@ -709,7 +709,7 @@ at the start of the loop. In this case, the cost is probably minor: a few extra
loads every time through the loop. However, if the base expression is more
complex, then the cost can rise quickly. I've seen loops where the end
expression was actually something like: "<tt>SomeMap[x]->end()</tt>" and map
lookups really aren't cheap. By writing it in the first form consistently, you
lookups really aren't cheap. By writing it in the second form consistently, you
eliminate the issue entirely and don't even have to think about it.</p>
<p>The second (even bigger) issue is that writing the loop in the first form