David Greene
016e0af68d
Convert debug messages to use dbgs(). Generally this means
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s/errs/dbgs/g except for certain special cases.
llvm-svn: 92040
2009-12-23 20:43:58 +00:00
Chris Lattner
f3d89dee33
typo spotted by duncan.
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llvm-svn: 88884
2009-11-16 03:51:42 +00:00
Chris Lattner
34aefed024
teach LVI to infer edge information from switch instructions.
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This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h
llvm-svn: 88869
2009-11-15 20:02:12 +00:00
Chris Lattner
69a52dd583
fix a logic error that would cause LVI-JT to miscompile
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some conditionals
llvm-svn: 88868
2009-11-15 20:01:24 +00:00
Chris Lattner
7ea8b3fbf8
implement the first stab at caching queries. This isn't correct
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(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
b9a9336376
refactor a bunch of code forming the new LazyValueInfoCache
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and LVIQuery classes, no functionality change.
llvm-svn: 88866
2009-11-15 19:59:49 +00:00
Chris Lattner
3e63fb7318
various fixes to the lattice transfer functions.
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llvm-svn: 86952
2009-11-12 04:57:13 +00:00
Chris Lattner
6d1ca5d976
Add a new getPredicateOnEdge method which returns more rich information for
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constant constraints. Improve the LVI lattice to include inequality
constraints.
llvm-svn: 86950
2009-11-12 04:36:58 +00:00
Chris Lattner
b5bb115ece
expose edge information and switch j-t to use it.
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llvm-svn: 86920
2009-11-12 01:29:10 +00:00
Chris Lattner
46056d81aa
move some stuff into DEBUG's and turn on lazy-value-info for
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the basic.ll testcase.
llvm-svn: 86918
2009-11-12 01:22:16 +00:00
Chris Lattner
4c831006c7
make LazyValueInfo actually to some stuff. This isn't very tested but improves
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strswitch.
llvm-svn: 86889
2009-11-11 22:48:44 +00:00
Chris Lattner
b45381c3f0
stub out some LazyValueInfo interfaces, and have JumpThreading
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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
6c04051d2a
Stub out a new lazy value info pass, which will eventually
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vend value constraint information to the optimizer.
llvm-svn: 86767
2009-11-11 00:22:30 +00:00
