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643 Commits

Author SHA1 Message Date
Chris Lattner
0bfb6ba3e3 - Made GlobalDCE worklist driven, making it more successful. Now can handle 
cases like: test/Regression/Transforms/GlobalDCE/2002-08-17-WorkListTest.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3381 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-18 01:28:30 +00:00
Chris Lattner
9b76123124 Promote getelementptr instructions to constexprs if we can. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3368 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-17 22:21:59 +00:00
Chris Lattner
3ecce66e25 Handle more cases of cast-of-cast in more general forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3347 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-15 16:15:25 +00:00
Chris Lattner
5cf6f112e6 Implement capability to fold this: 
uint %test4(int %A, int %B) {
        %COND = setlt int %A, %B                ; <bool> [#uses=1]
        %result = cast bool %COND to uint               ; <uint> [#uses=1]
        ret uint %result
}
into a single cast instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3339 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 23:21:10 +00:00
Chris Lattner
b9a7793ecb Avoid creating 'load X, 0' instead of just 'load X' 
This _trivial_ change causes GCSE and LICM to be much more effective at
hoisting loads.  Before it would not be able to eliminate 'load X' if there
was just a dominating 'load X, 0' because the expressions were not identical.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3337 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 22:11:52 +00:00
Chris Lattner
db6e4d6625 Avoid inserting an entry block unless we need it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3336 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 21:35:02 +00:00
Chris Lattner
ad333484ea Remove support for Not ConstantExpr. This simplifies the unary case to only 
have to support the cast instruction, so the function is renamed to getCast.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3328 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 18:24:09 +00:00
Chris Lattner
9b2b80fd48 Fix bug introduced in last checkin due to CastInst not being visible 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3327 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 18:22:19 +00:00
Chris Lattner
0513e9fe03 Remove support for NOT instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3323 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 18:18:02 +00:00
Chris Lattner
48a4531ee4 Remove extra #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3322 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 18:17:32 +00:00
Chris Lattner
b804760b56 Remove support for unary operators 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3318 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 17:53:45 +00:00
Chris Lattner
af2930efa0 - Fix InstCombine pass to not generate or process NOT instructions 
- Fixed testcases to not use them either.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3315 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 17:51:49 +00:00
Chris Lattner
e4c3764a9f Remove support for NOT instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3313 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-14 17:45:39 +00:00
Chris Lattner
572f4a01a5 - Rename ConstantGenericIntegral -> ConstantIntegral 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3300 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-13 17:50:24 +00:00
Chris Lattner
233f7dcde3 * Factor a bunch of code by using ReplaceInstUsesWith 
* Move isMaxValue, isMinValue, isAllOnesValue to Constants.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3290 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-12 21:17:25 +00:00
Chris Lattner
8b170945ea New functionality for instcombine: 
* New ReplaceInstUsesWith function to factor out tons of common code
     This needs to be used more in the future still, but it's a good start
   * New InsertNewInstBefore to allow multi-instruction replacements
   * Change getMaxValue functions to isAllOnesValue function, which doesn't
     have to CREATE/lookup a new constant.  Also the name is accurate
   * Add new isMaxValue, isMinValue, isMaxValueMinusOne, isMinValuePlusOne
     functions:  This should be moved to Constant* classes eventually
   * Implement xor X, ALLONES -> not X
   * Fold ALL setcc's of booleans away
   * Handle various SetCC's for integers against values at the end of their
     ranges, possibly off by one.  This implements the setcc-strength-reduce.ll
     testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3286 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-09 23:47:40 +00:00
Chris Lattner
180e568a70 Initial checkin of the "Hello World" Pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3266 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-08 20:10:38 +00:00
Chris Lattner
5f0eb8da62 - Cleaned up the interface to AnalysisUsage to take analysis class names 
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3265 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-08 19:01:30 +00:00
Chris Lattner
dd5b495129 - Cleaned up the interface to AnalysisUsage to take analysis class names 
instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3264 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-08 19:01:28 +00:00
Chris Lattner
c6b227ecc4 Remove extraneous #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3262 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-08 19:00:34 +00:00
Vikram S. Adve
900fd63d12 Eliminate cast instructions: use only GEPs in decomposed sequence. 
Don't decompose if there are 2 indices with 0 as first index.
Compute Changed flag correctly in runOnBasicBlock().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3233 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-03 13:21:15 +00:00
Chris Lattner
8fd217cb29 Fix bug: test/Regression/Transforms/InstCombine/2002-08-02-CastTest.ll 
Implement feature: Cast's can now be converted to bitwise AND expressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3225 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-02 20:00:25 +00:00
Chris Lattner
90ac28cf3e * Cleanups of instcombine 
- Reenable gep (gep x) -> x
   - Make instcombine do dead instruction elimination where it's really
     easy.  Now visitors don't have to ensure they aren't not processing
     dead instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3222 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-02 19:29:35 +00:00
Chris Lattner
be1ecf6050 Fix bug: test/Regression/Transforms/GCSE/2002-05-21-NoSharedDominator.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3215 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-02 18:06:01 +00:00
Chris Lattner
cc8d8fb676 Remove unneccesary #inlcude 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3200 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-08-01 20:01:02 +00:00
Chris Lattner
280b09b178 Implement the other half of a feature advertised by OperandConvertableToType. 
This fixes bug: test/Regression/Transforms/LevelRaise/2002-07-31-AssertionFailure.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3193 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-31 22:31:34 +00:00
Chris Lattner
55e41ba3d2 * Indent class into anonymous namespace, filling up the diff with garbage 
* Internalize global variables with initializers
* Add new stat to track global variable internalization
* Only count functions that were not internal before in internalized function
  count


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3163 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 19:48:44 +00:00
Chris Lattner
e8e4605021 Cleanup ConstantExpr handling: 
* Correctly delete TypeHandles in AsmParser.  In addition to not leaking
   memory, this prevents a bug that could have occurred when a type got
   resolved that the constexpr was using
 * Check for errors in the AsmParser instead of hitting assertion failures
   deep in the code
 * Simplify the interface to the ConstantExpr class, removing unneccesary
   parameters to the ::get* methods.
 * Rename the 'getelementptr' version of ConstantExpr::get to
   ConstantExpr::getGetElementPtr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3160 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 18:54:22 +00:00
Chris Lattner
ad772a7188 Remove FIXME's that aren't really needed after all. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3158 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 16:38:54 +00:00
Chris Lattner
e902bda4ce Fix bug with last patch which would occur when a call returned void and we 
attempted to assign it a name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3142 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 02:42:49 +00:00
Chris Lattner
9cf307fdeb * Make sure the resolved function call instructions get the name from the 
old call instruction
* Implement conversion of return values for calls.  This fixes bug:
   test/Regression/Transforms/FunctionResolve/retmismatch3.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3140 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 00:50:49 +00:00
Chris Lattner
446698b63d * Fix bug: test/Regression/Transforms/ADCE/2002-07-17-AssertionFailure.ll 
which was caused by us not running the "drop references of dead
  instructions" code when there were no basic blocks that were dead.

  We still don't want to do some of the stuff we do if there are dead
  basic blocks, but we DO want to drop references of dead instructions,
  so we factor the common code out to a new method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3137 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-30 00:22:34 +00:00
Chris Lattner
a61fab8c6d Add code to ensure that no PHI nodes are left laying around with their 
arguments dropped.  This fixes bug:
   test/Regression/Transforms/ADCE/2002-07-17-PHIAssertion.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3134 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-29 23:40:46 +00:00
Chris Lattner
b0f0ef8f26 Implement a new RemoveSuccessor function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3131 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-29 22:32:08 +00:00
Chris Lattner
011de07117 Fix bug: test/Regression/Transforms/ADCE/2002-07-29-Segfault.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3129 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-29 22:31:39 +00:00
Chris Lattner
91b65c0b42 Allow folding of basic blocks that have PHI nodes in them, fixing "bug": 
test/Regression/Transforms/SimplifyCFG/2002-06-24-PHINode.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3128 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-29 21:26:30 +00:00
Chris Lattner
a59cbb2043 * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3116 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-27 01:12:17 +00:00
Chris Lattner
97f51a3024 * Standardize how analysis results/passes as printed with the print() virtual 
methods
* Eliminate AnalysisID:  Now it is just a typedef for const PassInfo*
* Simplify how AnalysisID's are initialized
* Eliminate Analysis/Writer.cpp/.h: incorporate printing functionality into
  the analyses themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3115 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-27 01:12:15 +00:00
Chris Lattner
a6275ccdf5 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3113 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-26 21:12:46 +00:00
Chris Lattner
1e43516dcf * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3112 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-26 21:12:44 +00:00
Chris Lattner
ce6ef112c4 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3105 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-26 18:40:14 +00:00
Chris Lattner
0c0edf8afc *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3075 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-25 06:17:51 +00:00
Chris Lattner
b1443b1749 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3072 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-24 22:40:39 +00:00
Chris Lattner
568ddabc8f Eliminate several include/llvm/Transforms/IPO/*.h files, moving their contents into IPO.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3043 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-24 17:12:05 +00:00
Chris Lattner
e9ee3e5a75 Merge ChangeAllocations into scalar.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3038 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 22:04:17 +00:00
Chris Lattner
ff1be262c4 Rename header 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3037 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 22:04:02 +00:00
Chris Lattner
7311e389a6 Cleanup and simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3036 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 22:03:41 +00:00
Chris Lattner
9cfea85b8b Incorporate ConstantMerge.h into IPO.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3035 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 19:57:40 +00:00
Chris Lattner
b713599c93 Rename LevelChange.h to RaisePointerReferences.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3034 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 19:57:08 +00:00
Chris Lattner
f629309f74 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3016 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:06:35 +00:00
Chris Lattner
af41a12370 * Remove getPassName implementation 
* Register all Passes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3015 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:06:30 +00:00
Chris Lattner
1198266778 * Cleanup the pass a bit more, making it more object oriented. 
* Split the two behaviors of the InsertTraceCode class into two subclasses
* Register Passes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3014 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:04:15 +00:00
Chris Lattner
e9754ef595 * Break the two different behaviors of SimpleStructMutation into two subclasses 
* Register the passes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3013 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:03:11 +00:00
Chris Lattner
33494521d3 * Make the ctor take a TargetData even though it's not using it yet 
* Register the pass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3012 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:02:23 +00:00
Chris Lattner
72c27e2ae5 * Remove lots of dead stuff 
* Register Pass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3011 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 18:01:39 +00:00
Chris Lattner
56d27019e6 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3002 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-23 17:52:38 +00:00
Chris Lattner
4689728cdf Hide extra argument 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2986 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-22 02:17:27 +00:00
Chris Lattner
5ff62e90d0 *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2985 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-22 02:10:13 +00:00
Anand Shukla
5585f53d7c comeented out debug printing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2980 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-21 09:41:18 +00:00
Anand Shukla
e617f92741 minor corrections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2971 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 20:56:47 +00:00
Chris Lattner
5796091dfd Seperate stats for DCE'd functions and vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2961 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 06:40:04 +00:00
Chris Lattner
f0cd4722bf *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2959 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 04:43:20 +00:00
Chris Lattner
7f20ea7d7b Only functions with external linkage can be resolved to function declarations. 
This change fixes programs that have multiple functions named the same thing,
where are least one of them is static/internal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2954 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 03:01:24 +00:00
Chris Lattner
e306d94782 * Rewrite loop to be slightly more efficient (arguably) 
* Fix a MAJOR thinko that was causing bad links to happen on Spec


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2953 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 02:31:03 +00:00
Chris Lattner
0b5909e6ae * Correctly get prototype for void*malloc(size_t) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2951 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 00:18:01 +00:00
Chris Lattner
6cdf1971bd Implement linking of ConstExprs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2946 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-18 00:13:08 +00:00
Chris Lattner
260fc14568 Anand forgot to check in the makefile corresponding to his previous change 
which eliminated the EmitFunctions directory


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2937 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-17 17:13:01 +00:00
Chris Lattner
b1b4262387 * Remove dead code from ExprTypeConvert.cpp 
- I->use_empty() can never be true because of the IHolder's
* Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-SourceAndDestCrash.ll
   - Add a new NewCasts member to VMC to keep track of casts that have been
     created and to ensure there is always a reference to the cast.
   - Extend ValueHandle a bit so it can be used in an STL container
   - Make sure we destroy the ValueMapCache before verifying the function
     in LevelRaise.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2936 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-17 17:11:33 +00:00
Chris Lattner
3378a5b591 * Add a bunch of debugging features to LevelRaise 
- Verify the function every time it is exprconverted if DEBUG is on
  - Provide a way to start exprconversion AT a specific instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2934 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 23:49:24 +00:00
Chris Lattner
23014c9b00 Avoid !sized assertion failure if Ty is not a sized type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2933 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 22:29:37 +00:00
Chris Lattner
3fb2ddd368 Fix bug: test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash2.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2932 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 21:41:31 +00:00
Anand Shukla
e0b514259c Moved over EmitFunctions to this library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2928 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 18:58:08 +00:00
Anand Shukla
f080ec7dcd removed this directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2927 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 18:56:29 +00:00
Anand Shukla
11870879ec Moved EmitFunctions.cpp up to instrumentation directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2926 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 18:55:55 +00:00
Chris Lattner
a66c7bfa51 Bugfix to previous checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2924 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 18:12:55 +00:00
Chris Lattner
9713c4ef46 * Cleanup pass 
* The global variable cannot be internal or else we cannot use it!
* Always add a function to the table, even if it only has a single basic
  block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2921 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 17:42:54 +00:00
Chris Lattner
131454e91d * Add assertion to ExprTypeConvert to detect error earlier than without it 
* Fix bug in LevelRaise.cpp, correcting this problem:
    test/Regression/Transforms/LevelRaise/2002-07-16-RaiseCrash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2920 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-16 17:33:13 +00:00
Anand Shukla
135b75db49 Added EmitFunctions directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2883 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-12 20:12:07 +00:00
Anand Shukla
41059bc530 Initial makefile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2882 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-12 20:11:24 +00:00
Anand Shukla
09ba7b34c4 Initial version: adds a function table to output code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2881 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-12 20:10:50 +00:00
Chris Lattner
43199a036d Disable folding g-e-p instructions into loads and stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2870 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-10 22:37:17 +00:00
Chris Lattner
11910cf7e3 Disable pool allocation stuff until data structure analysis is sorted back out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2869 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-10 22:36:47 +00:00
Vikram S. Adve
f86b4c1982 Fix iteration and InsertPos bugs introduced when Chris changed over to ilist. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2840 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-08 23:37:07 +00:00
Anand Shukla
ec07c755fc changes BBsorting and oredering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2817 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-08 19:37:06 +00:00
Anand Shukla
82f40e8210 small corrections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2816 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-08 19:36:39 +00:00
Anand Shukla
d4d79067c0 changed function numbering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2815 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-07-08 19:36:01 +00:00
Chris Lattner
3e009942ed *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2813 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-30 16:25:25 +00:00
Chris Lattner
f739969911 Clean up anands patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2812 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-30 16:25:21 +00:00
Anand Shukla
3b5eabb24b changes to make it compatible with 64bit gcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2795 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 21:18:19 +00:00
Anand Shukla
5cafcfbab4 additions and bug fixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2794 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 21:14:58 +00:00
Anand Shukla
881ed6bad4 added include<iostream> for cerr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2793 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 21:12:25 +00:00
Anand Shukla
5ba99bd124 changes to make it compatible with 64bit gcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2792 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 21:07:58 +00:00
Anand Shukla
cfb22d3c14 changes to make it compatible with 64bit gcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2791 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 20:55:50 +00:00
Chris Lattner
7e70829632 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2779 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 16:13:24 +00:00
Chris Lattner
0b12b5f50e MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2778 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 16:13:21 +00:00
Chris Lattner
18961504fc *** empty log message *** 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2777 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 16:12:52 +00:00
Chris Lattner
9234d03373 Remove DynamicConstantMerge pass, because it did not fit in with the Pass 
system correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2772 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 15:55:29 +00:00
Chris Lattner
ce0141ec22 Remove "fixers" for problems in GCC generated code that cannot be generated 
anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2771 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 15:55:03 +00:00
Anand Shukla
c43fa80e1f Relocating Graph.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2770 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-06-25 14:28:55 +00:00
Chris Lattner
84369b323e Avoid deleting individual instructions until AFTER dead blocks have dropped 
their references.  This fixes bug:
    test/Regression/Transforms/ADCE/2002-05-28-Crash*.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2753 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-28 21:38:16 +00:00
Chris Lattner
16da494c81 Simplify the interface to local DCE and Constant prop 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2749 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-26 20:18:18 +00:00
Chris Lattner
bd8619d3ef Do not remove type names that contain a . 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2747 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-26 20:17:35 +00:00
Chris Lattner
abe6c3d702 Fix "unimplemented features": 
test/Regression/Transforms/FunctionResolve/retmismatch[12].ll

This makes it much more useful for running benchmarks that are missing
prototypes for some functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2745 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-24 21:33:26 +00:00
Chris Lattner
22ee3eb802 Split the FunctionResolution pass out of CleanGCCOutput.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2742 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-24 20:42:13 +00:00
Chris Lattner
d20a98e285 Fix comments to reflect reality 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2741 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-24 20:41:51 +00:00
Chris Lattner
47e0f3a8a0 Support programs that do not #include <malloc.h> or give a full prototype 
for malloc and free.  Lots of crufty benchmarks are using stuff like:
char *malloc();
void free();

to forward declare malloc and free.  Now we recognize and raise these forms


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2740 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-24 20:29:18 +00:00
Chris Lattner
c2b42b38f9 Fold add X, 0 for floating point types as well 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2734 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-23 17:11:38 +00:00
Chris Lattner
f09c74c385 Convert code to use the DEBUG macro so that debug code can simply be 
enabled with the -debug command line option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2721 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-22 21:56:32 +00:00
Chris Lattner
d9036a1aad Fix and implement ADCE to finally work! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2720 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-22 21:32:16 +00:00
Chris Lattner
b3abf9d0d8 Convert transforms over to standardize debugging output on -debug option 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2714 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-22 17:27:12 +00:00
Chris Lattner
f016ea4ff8 Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2713 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-22 17:17:27 +00:00
Chris Lattner
7f9412b50d Fix bug: test/Regression/Transforms/SCCP/2002-05-21-InvalidSimplify.ll 
Improperly handling edges... by not marking them alive properly


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2707 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-22 16:07:20 +00:00
Chris Lattner
01d1ee3a4c Add implementation of SimplifyCFG 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2701 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-21 20:50:24 +00:00
Chris Lattner
573527bd5d New CFG Simplification pass: removed from the old DCE pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2700 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-21 20:49:37 +00:00
Chris Lattner
76ae3445f8 Simplify interface to ConstantFoldTerminator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2697 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-21 20:04:50 +00:00
Chris Lattner
2e0769ea16 * Change commandline options a bit to be nicer 
* Insert accurate prototypes for functions
* Insert casts to use accurate prototypes


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2677 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-20 21:43:59 +00:00
Chris Lattner
618b4a11bb Fix bug: test/Regression/Transforms/SCCP/2002-05-20-MissedIncomingValue.ll 
That was causing a miscompilation of strtol/atoi plus others


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2669 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-20 20:48:03 +00:00
Vikram S. Adve
1e2ddcf741 Hash pointer values to a sequence number to get identical results from 
lli and llc.  This is controlled with options -tracehash on|off.

Also, added an option to specify which functions should be traced.
Particularly useful to reduce output volume in basic-block tracing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2646 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-19 15:39:02 +00:00
Chris Lattner
a36e6c8cd5 * Make debug output conditional on #define 
* Add optimization to rank computation to not recursively search when
  unneccesary.
* More agressively negate expressions to open reassociation opportunities.
* Linearize (A+B)+(C+D) into ((A+B)+C)+D


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2637 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-16 04:37:07 +00:00
Chris Lattner
0f9fd5b0f8 * Fix bug: test/Regression/Transforms/GCSE/2002-05-14-OperandSwap.ll 
By making sure to consider binary expressions identical if their operands
are backwards, but swappable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2629 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 19:57:25 +00:00
Chris Lattner
86c25fd556 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-SubFailure.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2627 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 16:44:07 +00:00
Chris Lattner
b3bc8fa755 Fix bug: test/Regression/Transforms/InstCombine/2002-05-14-TouchDeletedInst.ll 
"This testcase caused instcombine to fail because it got the same instruction on
it's worklist more than once (which is ok), but then deleted the instruction.
Since the inst stayed on the worklist, as soon as it came back up to be
processed, bad things happened, and opt asserted."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2623 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 15:24:07 +00:00
Chris Lattner
c99428f3c9 Fix a major source of "type unsafety", where a cast is neccesary, but can 
be put either before or after a load.  We chose to cast the value loaded
instead of the pointer to load from.

Fixes bug: test/Regression/Transforms/LevelRaise/2002-05-10-LoadPeephole.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2621 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 05:23:45 +00:00
Chris Lattner
18fb2a6682 Implement elimination of loads 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2620 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-14 05:02:40 +00:00
Chris Lattner
2172db04e7 Trivial cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2617 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-13 22:04:46 +00:00
Chris Lattner
e0e734eea0 Initial checkin of LICM pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2615 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 22:44:58 +00:00
Chris Lattner
3dec1f2722 Add support for printing out statistics information when -stats is added to 
the command line


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2601 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:38:35 +00:00
Chris Lattner
55547274bc Fix some bugs, straighten stuff out, more work needs to be done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2600 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:37:35 +00:00
Chris Lattner
3c0193742a * Add support for the -stats command line option to report how much is changed 
* Make cast-of-self-ty DCE the dead cast instruction immediately instead of
  waiting for it to be DCE'd by another sweep over the function.  This speeds
  this up noticably.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2597 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 15:29:25 +00:00
Chris Lattner
87fea85934 Initial checkin of the PiNodeInsertion pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2593 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-10 05:41:34 +00:00
Chris Lattner
53a5b57737 Handle setcc <global*>, 0 instructions, Global pointers are never null! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2582 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:11:54 +00:00
Chris Lattner
0aa7cd605d Give the longer name to the instruction that will probably be eliminated later 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2581 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 20:11:23 +00:00
Chris Lattner
403717156b Add ability to transform (x - (y - z)) into (x + (z - y)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2566 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-09 01:29:19 +00:00
Chris Lattner
5c4afb9034 * Combine: A-(-B) -> A + B 
* Bugfix:  A + -B and -A + B


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2561 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-08 22:46:53 +00:00
Chris Lattner
4fd56003ab Initial checkin of expression reassociation pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2559 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-08 22:19:27 +00:00
Chris Lattner
8ca21c245c Give the unified exit node a name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2550 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 22:14:45 +00:00
Chris Lattner
ea54ab9cd2 Fix bug: test/Regression/Transforms/ADCE/2002-01-31-UseStuckAround.ll 
Cleanup code a lot


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2547 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 22:11:39 +00:00
Chris Lattner
022103b3f3 Merge all individual .h files into a single Scalar.h file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2537 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 20:03:00 +00:00
Chris Lattner
a869b8dbd3 This doesn't use DCE! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2536 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 20:02:44 +00:00
Chris Lattner
fc514f40a6 Move UnifyFunctionExitNodes to Utils library: final resting place this time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2531 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 19:18:48 +00:00
Chris Lattner
65e96e57c5 fix comments and documentation in file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2530 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 19:04:39 +00:00
Chris Lattner
ade686e79b Split ChangeAllocations.cpp into Raise & LowerAllocations.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2529 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 19:02:48 +00:00
Chris Lattner
b444a1fff4 Cleanup implementation a bit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2526 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:51:25 +00:00
Chris Lattner
c8cc4cb03b Updates to move some header files out of include/llvm/Transforms into 
the Scalar and Utils subdirectories


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2523 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:36:35 +00:00
Chris Lattner
497c60c0ed Reduce dependance on TransformInternals.h, instead using the TransformUtils library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2518 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:12:18 +00:00
Chris Lattner
6d7491c3cc Add #include no longer included by llvm/Transforms/Scalar/ConstantProp.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2517 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:11:30 +00:00
Chris Lattner
2ed01d8f0b Factor code out to the TransformUtils library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2516 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:10:55 +00:00
Chris Lattner
5a4337a8fc Factor code out of TransformInternals into the Transform Utils library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2515 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:09:15 +00:00
Chris Lattner
0ed2e4b554 Build Transforms Utils library 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2514 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:08:50 +00:00
Chris Lattner
4d1e46e7b0 Add code pulled out of TransformInternals.cpp, ConstProp.cpp, and DCE.cpp 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2513 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 18:07:59 +00:00
Chris Lattner
071d0ad2f1 * Convert InstWorkList to vector instead of set, because on big programs it 
is empirically faster by a noticable margin, even though duplicates can
  happen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2511 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 04:29:32 +00:00
Chris Lattner
92deeaf7a3 * Remove all cfg simplification stuff for a new cfg simplify pass (todo) 
* Convert to worklist instead of iterative algorithm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2510 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-07 04:24:11 +00:00
Chris Lattner
d661937352 Only do masking for unsigned values! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2504 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:54:59 +00:00
Chris Lattner
89df1b58a9 * Eliminate dead code that should have been removed in last revision 
* Convert main constant propogation pass to be worklist driven instead of
  iterative.
* -constprop pass no longer "constant propogates" terminator instructions
   - CFG is now preserved!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2502 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:21:31 +00:00
Chris Lattner
473945d1dc Handle X = phi Y --> X = Y 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2501 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 18:06:38 +00:00
Chris Lattner
f51825e3fb * Use simplified interface to constant propogation stuff. 
* Remove dead PHI case (which could not work due to getNumOperands rather than
  getNumIncomingValues.  This really belongs in InstCombine, anyway so we'll
  move it there.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2497 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:54:10 +00:00
Chris Lattner
dfe81ab87a Clean up ADCE by removing extraneous wrapper class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2494 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:27:57 +00:00
Chris Lattner
ed3a55005d Combine not (not X) -> X 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2493 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 17:03:21 +00:00
Chris Lattner
b35dde1df4 Support more cases... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2490 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:49:18 +00:00
Chris Lattner
3f5b877dd4 Add many more instruction combination simplifications 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2484 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 16:14:14 +00:00
Chris Lattner
cdac78b8a4 Merge blocks like this: 
void "test3"(bool %T) {
        br bool %T, label %BB1, label %BB1
BB1:
        ret void
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2472 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:02:02 +00:00
Chris Lattner
4c1061f58c Implement constant propogation of shift instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2471 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-06 03:01:37 +00:00
Chris Lattner
904ec289c2 Ok, really it only takes me 3 times to get this right! 
Now use #if 0 instead of #ifdef 0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2448 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 21:49:50 +00:00
Chris Lattner
52a9a1def8 Oops, disable debugging code all the way. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2447 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 21:47:40 +00:00
Chris Lattner
b9a6634466 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2446 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 21:44:00 +00:00
Chris Lattner
59f0ce2a41 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2445 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 21:18:01 +00:00
Chris Lattner
0e9c515439 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2443 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 20:32:51 +00:00
Chris Lattner
872265ee1b ExprTypeConvert will already do this transformation, no need to specialize 
it here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2431 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:38:55 +00:00
Chris Lattner
1f8d13c361 Be a little more efficient, do not generate loads and stores with indices in them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2430 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:38:14 +00:00
Chris Lattner
bbad858b3a Fix bug: test/Regression/Transforms/LevelRaise/2002-05-02-BadCastElimination.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2429 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:37:34 +00:00
Chris Lattner
a1be566213 * Add ability to eliminate a bunch of different cascading cast variations 
* Allow elimination of getelementptr X, uint 0 (which is a noop)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2428 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-02 17:06:02 +00:00
Chris Lattner
68d024dde4 Fixed bug: test/Regression/Transforms/Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2423 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-05-01 15:38:23 +00:00
Chris Lattner
71d3934bad Remove unneccesary pass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2420 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-30 20:52:49 +00:00
Chris Lattner
6c1ce21ee6 Add folding rules for mul X, 0 and mul X, 2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2417 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 22:24:47 +00:00
Chris Lattner
0dbfc05a2a Significantly clean up SCCP pass. Now the two classes are merged and in 
an anonymous namespace where they belong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2415 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 21:26:08 +00:00
Chris Lattner
f737121054 Range insertion now returns an iterator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2414 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 21:25:34 +00:00
Chris Lattner
94cf3b1c67 Remove unused files: This is the old induction varaible cannonicalization 
pass built on top of interval analysis


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2411 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 20:18:00 +00:00
Chris Lattner
4840146b46 Fix for problem when allocating something like this: 
malloc(100-i);


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2409 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 20:09:21 +00:00
Chris Lattner
72a1d4e126 changes because iMemory.h no longer #includes DerivedTypes.h 
This only requires Type.h anyway


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2405 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 18:48:30 +00:00
Chris Lattner
f772f8ef38 Eliminate dead global variables 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2400 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 18:13:11 +00:00
Chris Lattner
c6f3ae5c66 Eliminate duplicate or unneccesary #include's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2397 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 17:42:12 +00:00
Chris Lattner
8b054c0eb9 Remove broken assertion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2396 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 16:20:25 +00:00
Chris Lattner
96c466b06a Add new optional getPassName() virtual function that a Pass can override 
to make debugging output a lot nicer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2395 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 14:57:45 +00:00
Chris Lattner
097632eae3 More cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2392 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 01:58:47 +00:00
Chris Lattner
2f6f03bddd Code cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2391 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-29 01:22:55 +00:00
Chris Lattner
97e52e4336 Tighten up the AnalysisUsage of lots of passes, primarily to correctly indicate whether or not they invalidate the CFGA 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2386 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 21:27:06 +00:00
Chris Lattner
31bcdb822f Split ConstantVals.h into Constant.h and Constants.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2378 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 19:55:58 +00:00
Chris Lattner
b9ddce65c2 Eliminate the PromoteInstance class, incorporating it into the PromotePass 
class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2375 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 19:12:38 +00:00
Chris Lattner
0adb9f95ea Eliminate visited, CurrentValue, and WriteSets as instance variables of 
PromoteInstance.  Make them local variables that are passed around as
appropriate.  Especially in the case of CurrentValue, this makes the
code simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2374 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:54:01 +00:00
Chris Lattner
5b5df1747f * Fix bug: test/Regression/Transforms/Mem2Reg/2002-03-28-UninitializedVal.ll 
* Minor cleanup that was missed in last patch


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2373 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:39:46 +00:00
Chris Lattner
9f4eb01dd4 This huge changeset is a strictly cleanup change 
Bugfixes will come in the next revision so that the diff is obvious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2372 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 18:27:55 +00:00
Chris Lattner
1b7f7dc4b4 Eliminate the cfg namespace, moving LoopInfo, Dominators, Interval* classes 
to the global namespace


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2370 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 16:21:30 +00:00
Chris Lattner
100d6daca4 Be careful not to make "external" function internal 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2363 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 05:48:34 +00:00
Chris Lattner
dbb1735673 Initial checkin of new "Internalize" pass for GCCLD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2362 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 05:43:27 +00:00
Chris Lattner
d80e973cec Initial checkin of simple&fast SSA based GCSE algorithm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2338 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 00:47:11 +00:00
Chris Lattner
a298d27808 Change the Dominator info and LoopInfo classes to keep track of BasicBlock's, not 
const BasicBlocks


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2337 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-28 00:15:57 +00:00
Chris Lattner
483e14ee04 s/Method/Function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2336 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 07:27:19 +00:00
Chris Lattner
f57b845547 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2333 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 06:56:12 +00:00
Chris Lattner
f2361c5e5c Changes because the Terminator::getSuccessor function now FAILS if successor 
IDX is out of range instead of returning null.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2332 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 03:15:45 +00:00
Chris Lattner
8e343330a5 * Change Constant::getNullConstant to Constant::getNullValue 
* Add support for pool allocating array allocations of varying size


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2329 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-04-27 02:29:32 +00:00