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Author SHA1 Message Date
Dan Gohman 4d6149f356 Update LoopSimplify and LoopUnswitch to use the new makeLoopInvariant 
function.

llvm-svn: 75584
 2009-07-14 01:37:59 +00:00
Dan Gohman 19d2417c90 Don't cache PHI exit values from exhaustive evaluations, because 
an individual exhaustive evaluation reflects only the exit value
implied by an individual exit, which may differ from the actual
exit value of the loop if there are other exits. This fixes PR4477.

llvm-svn: 74447
 2009-06-29 20:34:13 +00:00