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309 Commits

Author SHA1 Message Date
Chris Lattner 2c708562f5 implement the first stab at caching queries. This isn't correct 
(because the invalidation logic is missing) but LVI isn't enabled
by default anyway.

llvm-svn: 88867
 2009-11-15 20:00:52 +00:00
Chris Lattner af025d3f6e refactor a bunch of code forming the new LazyValueInfoCache 
and LVIQuery classes, no functionality change.

llvm-svn: 88866
 2009-11-15 19:59:49 +00:00
Chris Lattner 22db4b5e0c various fixes to the lattice transfer functions. 
llvm-svn: 86952
 2009-11-12 04:57:13 +00:00
Chris Lattner 565ee2f1bd Add a new getPredicateOnEdge method which returns more rich information for 
constant constraints.  Improve the LVI lattice to include inequality 
constraints.

llvm-svn: 86950
 2009-11-12 04:36:58 +00:00
Chris Lattner d5e25436a1 expose edge information and switch j-t to use it. 
llvm-svn: 86920
 2009-11-12 01:29:10 +00:00
Chris Lattner b584d1e456 move some stuff into DEBUG's and turn on lazy-value-info for 
the basic.ll testcase.

llvm-svn: 86918
 2009-11-12 01:22:16 +00:00
Chris Lattner 19019eaf00 make LazyValueInfo actually to some stuff. This isn't very tested but improves 
strswitch.

llvm-svn: 86889
 2009-11-11 22:48:44 +00:00
Chris Lattner fde1f8d0d8 stub out some LazyValueInfo interfaces, and have JumpThreading 
start using them in a trivial way when -enable-jump-threading-lvi
is passed.  enable-jump-threading-lvi will be my playground for 
awhile.

llvm-svn: 86789
 2009-11-11 02:08:33 +00:00
Chris Lattner 741c94c719 Stub out a new lazy value info pass, which will eventually 
vend value constraint information to the optimizer.

llvm-svn: 86767
 2009-11-11 00:22:30 +00:00