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71 Commits

Author SHA1 Message Date
Owen Anderson
db78d73d96 Split the tag and value members of LVILatticeVal in preparation for expanding the lattice to something that won't fit in two bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-05 22:10:46 +00:00
Owen Anderson
7f9cb744f2 Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some 
of my earlier data structure improvements until I can ensure that there are no iterator invalidation problems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109935 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-30 23:59:40 +00:00
Owen Anderson
81881bcd35 Revert my last two patches to LVI, which recent changes have exposed a miscompilation in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-30 20:56:07 +00:00
Owen Anderson
e2fb451dbb Pass the queried value by argument rather than in a member, in preparation for supporting PHI translation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 23:50:08 +00:00
Owen Anderson
9da5c997c0 Get rid of LVIQuery as a distinct data structure, so that we don't have to initialize a new set of maps on every query. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-28 22:07:25 +00:00
Owen Anderson
9a65dc9968 Rearrange several datastructures in LazyValueInfo to improve compile time. 
This is still not perfect, but better than it was before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-27 23:58:11 +00:00
Owen Anderson
cfa7fb6df5 Add an initial implementation of LazyValueInfo updating for JumpThreading. Disabled for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109424 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-26 18:48:03 +00:00
Owen Anderson
d13db2c59c Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-07-21 22:09:45 +00:00
David Greene
5d93a1fb36 Convert debug messages to use dbgs(). Generally this means 
s/errs/dbgs/g except for certain special cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92040 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-12-23 20:43:58 +00:00
Chris Lattner
d6add155a7 typo spotted by duncan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88884 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-16 03:51:42 +00:00
Chris Lattner
800c47ec10 teach LVI to infer edge information from switch instructions. 
This allows JT to eliminate a ton of infeasible edges when
handling code like the templates in PatternMatch.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88869 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:02:12 +00:00
Chris Lattner
5553a3a510 fix a logic error that would cause LVI-JT to miscompile 
some conditionals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88868 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:01:24 +00:00
Chris Lattner
e5642812d3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88867 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 20:00:52 +00:00
Chris Lattner
2c5adf832a refactor a bunch of code forming the new LazyValueInfoCache 
and LVIQuery classes, no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88866 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-15 19:59:49 +00:00
Chris Lattner
f496e79f44 various fixes to the lattice transfer functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86952 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 04:57:13 +00:00
Chris Lattner
b52675b643 Add a new getPredicateOnEdge method which returns more rich information for 
constant constraints.  Improve the LVI lattice to include inequality 
constraints.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 04:36:58 +00:00
Chris Lattner
38392bbeb8 expose edge information and switch j-t to use it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 01:29:10 +00:00
Chris Lattner
b8c124c343 move some stuff into DEBUG's and turn on lazy-value-info for 
the basic.ll testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-12 01:22:16 +00:00
Chris Lattner
1697652922 make LazyValueInfo actually to some stuff. This isn't very tested but improves 
strswitch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86889 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 22:48:44 +00:00
Chris Lattner
cc4d3b25f3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86789 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 02:08:33 +00:00
Chris Lattner
10f2d13d58 Stub out a new lazy value info pass, which will eventually 
vend value constraint information to the optimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-11-11 00:22:30 +00:00