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* When checking whether the special handling for an addrec increment whichDan Gohman2010-04-261-1/+1
| | | | | | | | | doesn't dominate the header is needed, don't check whether the increment expression has computable loop evolution. While the operands of an addrec are required to be loop-invariant, they're not required to dominate any part of the loop. This fixes PR6914. llvm-svn: 102389
* Fix LSR to tolerate cases where ScalarEvolution initiallyDan Gohman2010-04-231-0/+12
| | | | | | | misses an opportunity to fold add operands, but folds them after LSR has separated them out. This fixes rdar://7886751. llvm-svn: 102157
* Create a README.txt for lib/Analysis, and add an entry.Dan Gohman2009-09-281-0/+18
llvm-svn: 83001
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