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Fix typo in comment.

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llvm-svn: 139137
This commit is contained in:
Nick Lewycky 2011-09-06 06:46:01 +00:00
parent 0c9df5d6c2
commit 4add6eec38
1 changed files with 1 additions and 1 deletions
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2
lib/Analysis/ScalarEvolution.cpp
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@ -1982,7 +1982,7 @@ const SCEV *ScalarEvolution::getMulExpr(SmallVectorImpl<const SCEV *> &Ops,
// Given an equation of the form x + y*It + z*It^2 (above), we want to
// express it in terms of {X,+,Y,+,Z}.
// {X,+,Y,+,Z} = X + Y*It + Z*(It^2 - It)/2.
// Rearranging, X = x, Y = x+y, Z = 2z.
// Rearranging, X = x, Y = y+z, Z = 2z.
//
// x = A*C, y = (A*D + B*C), z = B*D.
// Therefore X = A*C, Y = (A*D + B*C) - B*D and Z = 2*B*D.