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328 Commits

Author SHA1 Message Date
Chris Lattner 35e56e7372 Update comment 
llvm-svn: 8965
 2003-10-08 16:56:11 +00:00
Chris Lattner 0bbbe5d4c8 Use a set to keep track of which edges have been noticed as executable already 
to avoid reprocessing PHI nodes needlessly.  This speeds up the big bad PHI
testcase 43%: from 104.9826 to 73.5157s

llvm-svn: 8964
 2003-10-08 16:55:34 +00:00
Chris Lattner 7324f7cd03 Minor fixes here and there 
llvm-svn: 8963
 2003-10-08 16:21:03 +00:00
Chris Lattner 71ac22ffb5 Avoid building data structures we don't really need. This improves the runtime 
of a test that Bill Wendling sent me from 228.5s to 105s.  Obviously there is
more improvement to be had, but this is a nice speedup which should be "felt"
by many programs.

llvm-svn: 8962
 2003-10-08 15:47:41 +00:00
Chris Lattner 9c58cf6d03 Add support for the unwind instruction 
llvm-svn: 8408
 2003-09-08 18:54:55 +00:00
Chris Lattner df741d62de Fix bug: SCCP/2003-08-26-InvokeHandling.ll 
llvm-svn: 8152
 2003-08-27 01:08:35 +00:00
Misha Brukman 7eb05a170a Spell `necessary' correctly. 
llvm-svn: 7944
 2003-08-18 14:43:39 +00:00
Chris Lattner 8abcd56c74 DEBUG got moved to Support/Debug.h 
llvm-svn: 7492
 2003-08-01 22:15:03 +00:00
Chris Lattner 7e270580c8 Fix bug: SCCP/2003-06-24-OverdefinedPHIValue.ll 
llvm-svn: 6883
 2003-06-24 20:29:52 +00:00
Misha Brukman 373086db75 Hopefully, the final fix for `[Pp]ropogate'. 
llvm-svn: 6251
 2003-05-20 21:01:22 +00:00
Chris Lattner b02697210e Handle va_arg instruction correctly 
llvm-svn: 6030
 2003-05-08 02:50:13 +00:00
Chris Lattner 3c98276168 Fix major problem with PHI node traversal: rechecking PHIs should go into 
the visit function.  The worklist is for when their lattice value changes.

llvm-svn: 5927
 2003-04-25 03:35:10 +00:00
Chris Lattner cccc5c76c8 Minor non-functional changes: 
* Spell propagate right
  * Improve performance of phi node handling
  * Delete using directive
  * Other minor changes

llvm-svn: 5920
 2003-04-25 02:50:03 +00:00
Chris Lattner 889f620841 Remove unnecesary &*'s 
llvm-svn: 5872
 2003-04-23 16:37:45 +00:00
Chris Lattner 669c6cf459 Make sure to _delete_ memory allocated by worklists 
llvm-svn: 4523
 2002-11-04 02:54:22 +00:00
Misha Brukman 632df28deb Fix spelling of `propagate'. 
llvm-svn: 4423
 2002-10-29 23:06:16 +00:00
Chris Lattner 820d971233 - Rename AnalysisUsage::preservesAll to getPreservesAll & preservesCFG to 
setPreservesCFG to be less confusing.

llvm-svn: 4255
 2002-10-21 20:00:28 +00:00
Chris Lattner bf3a099a62 Updates to work with recent Statistic's changes: 
* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
    * Broke constructor to take two const char * arguments instead of one, so
      that indendation can be taken care of automatically.
    * Sort the list by pass name when printing
    * Make sure to print all statistics as a group, instead of randomly when
      the statistics dtors are called.
    * Updated ProgrammersManual with new semantics.

llvm-svn: 4002
 2002-10-01 22:38:41 +00:00
Chris Lattner dd6522e7a0 - Implement SCCP of getelementptr instructions 
- Implement SCCP of globals into ConstantExprs hopefully opening new
   opportunities for more SCCP.

llvm-svn: 3555
 2002-08-30 23:39:00 +00:00
Chris Lattner dfb3a2cd07 Eliminated the MemAccessInst class, folding contents into GEP class. 
llvm-svn: 3487
 2002-08-22 23:37:20 +00:00
Chris Lattner 0f4093938a Remove extra #includes 
llvm-svn: 3322
 2002-08-14 18:17:32 +00:00
Chris Lattner 6e1a1b1289 Remove support for unary operators 
llvm-svn: 3318
 2002-08-14 17:53:45 +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
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 71cbd42b98 Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline 
llvm-svn: 2713
 2002-05-22 17:17:27 +00:00
Chris Lattner a482d52ff4 Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll 
Improperly handling edges... by not marking them alive properly

llvm-svn: 2707
 2002-05-22 16:07:20 +00:00
Chris Lattner b710b1fb22 Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll 
That was causing a miscompilation of strtol/atoi plus others

llvm-svn: 2669
 2002-05-20 20:48:03 +00:00
Chris Lattner 0b18c1d64e Add support for printing out statistics information when -stats is added to 
the command line

llvm-svn: 2601
 2002-05-10 15:38:35 +00:00
Chris Lattner b4cfa7ff97 Merge all individual .h files into a single Scalar.h file 
llvm-svn: 2537
 2002-05-07 20:03:00 +00:00
Chris Lattner 3d86d49604 Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h 
llvm-svn: 2517
 2002-05-07 18:11:30 +00:00
Chris Lattner d66a6e33e9 * Convert InstWorkList to vector instead of set, because on big programs it 
is empirically faster by a noticable margin, even though duplicates can
  happen.

llvm-svn: 2511
 2002-05-07 04:29:32 +00:00
Chris Lattner 940daedc22 Implement constant propogation of shift instructions 
llvm-svn: 2471
 2002-05-06 03:01:37 +00:00
Chris Lattner 7b80b53ab9 Ok, really it only takes me 3 times to get this right! 
Now use #if 0 instead of #ifdef 0

llvm-svn: 2448
 2002-05-02 21:49:50 +00:00
Chris Lattner dd390e1736 Oops, disable debugging code all the way. :) 
llvm-svn: 2447
 2002-05-02 21:47:40 +00:00
Chris Lattner fe6c9eeae3 * Finish the implementation of isEdgeFeasible this fixes bug: 
test/Regression/Transforms/SCCP/2002-05-02-EdgeFailure.ll
* SCCP now preserves the CFG:  It leaves conditional branches the way they
  are in the program, not simplifying them.  A seperate pass should eliminate
  the potentially dead basic blocks and edges in the CFG.

llvm-svn: 2446
 2002-05-02 21:44:00 +00:00
Chris Lattner 13b52e71d8 * Enable SCCP debugging to be turned on with a simple change of #define 
* Change worklist to a set so that duplicates cannot happen
* Add support for the invoke instruction
* Avoid marking store and free instructions as overdefined, since they
  cannot produce a value anyway.
* Inline the OperandChangedState implementation
* Add isEdgeFeasible in preparation to fix a bug.  Right now it behaves
  exactly as before.
* Remove obsolete comment about constant pools

llvm-svn: 2445
 2002-05-02 21:18:01 +00:00
Chris Lattner 5364d1a74a * Simplify the code by not bothering to name the folded constant 
* Do not skip the instruction immediately after a folded instruction.  This
  was causing the testcase failure:
	test/Regression/Transforms/SCCP/2002-05-02-MissSecondInst.ll

llvm-svn: 2443
 2002-05-02 20:32:51 +00:00
Chris Lattner 7d3253876a Significantly clean up SCCP pass. Now the two classes are merged and in 
an anonymous namespace where they belong.

llvm-svn: 2415
 2002-04-29 21:26:08 +00:00
Chris Lattner d5a847057b Eliminate duplicate or unneccesary #include's 
llvm-svn: 2397
 2002-04-29 17:42:12 +00:00
Chris Lattner 37104aace8 Add new optional getPassName() virtual function that a Pass can override 
to make debugging output a lot nicer.

llvm-svn: 2395
 2002-04-29 14:57:45 +00:00
Chris Lattner f12cc842b3 Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA 
llvm-svn: 2386
 2002-04-28 21:27:06 +00:00
Chris Lattner ca14237696 Split ConstantVals.h into Constant.h and Constants.h 
llvm-svn: 2378
 2002-04-28 19:55:58 +00:00
Chris Lattner c8e665431b * Rename MethodPass class to FunctionPass 
- Rename runOnMethod to runOnFunction
* Transform getAnalysisUsageInfo into getAnalysisUsage
  - Method is now const
  - It now takes one AnalysisUsage object to fill in instead of 3 vectors
    to fill in
  - Pass's now specify which other passes they _preserve_ not which ones
    they modify (be conservative!)
  - A pass can specify that it preserves all analyses (because it never
    modifies the underlying program)
* s/Method/Function/g in other random places as well

llvm-svn: 2333
 2002-04-27 06:56:12 +00:00
Chris Lattner 66cfaf1da2 Changes because the Terminator::getSuccessor function now FAILS if successor 
IDX is out of range instead of returning null.

llvm-svn: 2332
 2002-04-27 03:15:45 +00:00
Chris Lattner 6e56079654 Convert SCCP over to use InstVisitor instead of hand crafted switch 
llvm-svn: 2286
 2002-04-18 15:13:15 +00:00
Chris Lattner 5873900709 GEP instructions can never be constant propogated. 
llvm-svn: 2284
 2002-04-18 14:44:13 +00:00
Chris Lattner 2e9fa6d101 Move FunctionArgument out of iOther.h into Argument.h and rename class to 
be 'Argument' instead of FunctionArgument.

llvm-svn: 2216
 2002-04-09 19:48:49 +00:00
Chris Lattner f8e4dc33ab s/Method/Function 
Remove extraneous #includes of llvm/Assembly/Writer

llvm-svn: 2178
 2002-04-08 22:03:00 +00:00
Chris Lattner 65b529fe6d ConstantHandling moved into VMCore library 
llvm-svn: 2165
 2002-04-08 20:18:09 +00:00
Chris Lattner 57698e2c0b Change references from Method to Function 
change references from MethodARgument to FunctionArgument

llvm-svn: 1991
 2002-03-26 18:01:55 +00:00
Chris Lattner 477fe0845a Fix bug: test/Regression/Other/2002-03-11-ConstPropCrash.ll 
llvm-svn: 1858
 2002-03-11 22:11:07 +00:00
Chris Lattner 04805fa29c Change over to use new style pass mechanism, now passes only expose small 
creation functions in their public header file, unless they can help it.

llvm-svn: 1816
 2002-02-26 21:46:54 +00:00
Chris Lattner 60a6591d83 Method.h no longer includes BasicBlock.h 
Method::inst_* is now in llvm/Support/InstIterator.h
GraphTraits specializations for BasicBlock and Methods are now in llvm/Support/CFG.h

llvm-svn: 1746
 2002-02-12 21:07:25 +00:00
Chris Lattner 352151e222 MethodPass's are now guaranteed to not be run on external methods! 
llvm-svn: 1611
 2002-01-31 00:51:24 +00:00
Chris Lattner ee965abc36 Move stuff out of the Optimizations directories into the appropriate Transforms 
directories.  Eliminate the opt namespace.

llvm-svn: 1520
 2002-01-21 23:17:48 +00:00
Chris Lattner 7f74a56e24 Changes to build successfully with GCC 3.02 
llvm-svn: 1503
 2002-01-20 22:54:45 +00:00
Chris Lattner 3462ae3ad7 Rename ConstPoolVal -> Constant 
Rename ConstPool*   -> Constant*
Rename ConstPoolVals.h -> ConstantVals.h

llvm-svn: 1407
 2001-12-03 22:26:30 +00:00
Chris Lattner fb5ae02e1a Split the PHINode class out from the iOther.h file into the iPHINode.h file 
llvm-svn: 1405
 2001-12-03 18:02:31 +00:00
Chris Lattner 5de2204fe8 Create a new #include "Support/..." directory structure to move things 
from "llvm/Support/..." that are not llvm dependant.

Move files and fix #includes

llvm-svn: 1400
 2001-11-27 00:03:19 +00:00
Chris Lattner c4ad64cb9c Misc cleanups 
llvm-svn: 1377
 2001-11-26 18:57:38 +00:00
Chris Lattner 9db8b765cd Implemented constant propogation of cast instructions 
llvm-svn: 1064
 2001-10-31 05:07:57 +00:00
Chris Lattner 5398a6eb6c Convert optimizations to the pass infrastructure 
llvm-svn: 873
 2001-10-18 01:32:34 +00:00
Chris Lattner f0b68888af Support the invoke instruction 
llvm-svn: 765
 2001-10-13 06:52:41 +00:00
Chris Lattner da55810666 Commit more code over to new cast style 
llvm-svn: 697
 2001-10-02 03:41:24 +00:00
Chris Lattner 3856934386 Convert more code to use new style casts 
Eliminate old style casts from value.h

llvm-svn: 696
 2001-10-01 20:11:19 +00:00
Chris Lattner 4b717c0edc Add support for new style casts 
llvm-svn: 694
 2001-10-01 16:18:37 +00:00
Chris Lattner dae05dc937 * Eliminate reference to ConstantPool class 
* Constants are global objects that are not allocated or freed

llvm-svn: 456
 2001-09-07 16:43:22 +00:00
Chris Lattner e2472bbf6c Moved inline/llvm/Tools/* to include/llvm/Support/* 
llvm-svn: 279
 2001-07-23 17:46:59 +00:00
Chris Lattner 3e37ec7c0a Support external methods 
llvm-svn: 200
 2001-07-15 21:43:45 +00:00
Chris Lattner 5451c9e977 Add knowledge about the struct form of the GetElementPtr instruction 
llvm-svn: 183
 2001-07-14 06:11:51 +00:00
Chris Lattner 31feae8550 Implement checking for new instructions 
llvm-svn: 163
 2001-07-08 21:18:49 +00:00
Chris Lattner b1ca9cbceb Broad superficial changes: 
* Renamed getOpcode to getOpcodeName
* Changed getOpcodeName to return a const char * instead of string
* Added a getOpcode method to replace getInstType
* Changed code to use getOpcode instead of getInstType

llvm-svn: 152
 2001-07-07 19:24:15 +00:00
Chris Lattner a073acb22d Changed the fundemental architecture of Operands for Instructions. Now 
Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before.  Getting an operand no longer requires
a virtual function call.

WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!

llvm-svn: 149
 2001-07-07 08:36:50 +00:00
Chris Lattner 1960b3c6d2 Rename DoSparseConditionalConstantProp -> DoSCCP 
llvm-svn: 117
 2001-06-30 06:37:43 +00:00
Chris Lattner d42d492734 Optimizations got their own header files 
Optimizations now live in the 'opt' namespace
include/llvm/Opt was renamed include/llvm/Optimizations

llvm-svn: 113
 2001-06-30 04:36:40 +00:00
Chris Lattner 10b250eb4d Added documentation. Constant fold terminators. 
llvm-svn: 106
 2001-06-29 23:56:23 +00:00
Chris Lattner 347389dae8 Add a new Sparse Conditional Constant Propogation pass 
llvm-svn: 95
 2001-06-27 23:38:11 +00:00