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367 Commits

Author SHA1 Message Date
Chris Lattner 6443769b34 Hoist the contents of Loops in depth first order in the dominator tree, 
rather than in random order.  This causes LICM to be DRAMATICALLY more
effective. For example, on bzip2.c, it is able to hoist 302 loads and
2380 total instructions, as opposed to 44/338 before.  This  obviously
makes other transformations much more powerful as well!

llvm-svn: 3978
 2002-09-29 21:46:09 +00:00
Chris Lattner d57f3f5073 - Further cleanups of LICM pass, remove extra work from previous implementation 
- Do not clone instructions then insert clone outside of loop.  Just move them.

llvm-svn: 3951
 2002-09-26 19:40:25 +00:00
Chris Lattner f64f2d3fb3 Improve comments, doxygenize more 
llvm-svn: 3950
 2002-09-26 16:52:07 +00:00
Chris Lattner 718b221ff8 Clean up LICM significantly now that it is guaranteed to have loop preheaders 
llvm-svn: 3947
 2002-09-26 16:38:03 +00:00
Chris Lattner d771fdfd75 Loop invariant code motion now depends on the LoopPreheader pass. Dead code 
has not yet been removed.

llvm-svn: 3945
 2002-09-26 16:19:31 +00:00
Chris Lattner a239e6879d Clean up code due to auto-insert constructors 
llvm-svn: 3665
 2002-09-10 22:38:47 +00:00
Chris Lattner cd709cbf53 Load & StoreInst no longer derive from MemAccessInst, so we don't have 
to handle indexing anymore

llvm-svn: 3485
 2002-08-22 22:49:05 +00:00
Chris Lattner a51fa88702 Add capability of using pointer analysis to LICM 
llvm-svn: 3478
 2002-08-22 21:39:55 +00:00
Chris Lattner b80b69cc3e Fix bug introduced in last checkin due to CastInst not being visible 
llvm-svn: 3327
 2002-08-14 18:22:19 +00:00
Chris Lattner b193ff8f70 Remove support for NOT instruction 
llvm-svn: 3323
 2002-08-14 18:18:02 +00:00
Chris Lattner f0ed55d1ee - Cleaned up the interface to AnalysisUsage to take analysis class names 
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3265
 2002-08-08 19:01:30 +00:00
Chris Lattner c8b7092e54 * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3113
 2002-07-26 21:12:46 +00:00
Chris Lattner b28b680155 *** empty log message *** 
llvm-svn: 3016
 2002-07-23 18:06:35 +00:00
Anand Shukla 2bc6419a82 changes to make it compatible with 64bit gcc 
llvm-svn: 2792
 2002-06-25 21:07:58 +00:00
Chris Lattner 113f4f4609 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner ab038d44b0 Simplify the interface to local DCE and Constant prop 
llvm-svn: 2749
 2002-05-26 20:18:18 +00:00
Chris Lattner 6ec05f551c Initial checkin of LICM pass 
llvm-svn: 2615
 2002-05-10 22:44:58 +00:00