llvm-svn: 3417

llvm-svn: 3412

llvm-svn: 3406

llvm-svn: 3397

    cases like: test/Regression/Transforms/GlobalDCE/2002-08-17-WorkListTest.ll

llvm-svn: 3381

llvm-svn: 3368

llvm-svn: 3347

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.

llvm-svn: 3339

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.

llvm-svn: 3337

llvm-svn: 3336

have to support the cast instruction, so the function is renamed to getCast.

llvm-svn: 3328

llvm-svn: 3327

llvm-svn: 3323

llvm-svn: 3322

llvm-svn: 3318

    - Fixed testcases to not use them either.

llvm-svn: 3315

llvm-svn: 3313

llvm-svn: 3300

* Move isMaxValue, isMinValue, isAllOnesValue to Constants.h

llvm-svn: 3290

   * 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.

llvm-svn: 3286

llvm-svn: 3266

- 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

   instead of ::ID's.
 - Pass::getAnalysis<> now no longer takes an optional argument

llvm-svn: 3264

llvm-svn: 3262

Don't decompose if there are 2 indices with 0 as first index.
Compute Changed flag correctly in runOnBasicBlock().

llvm-svn: 3233

Implement feature: Cast's can now be converted to bitwise AND expressions.

llvm-svn: 3225

   - 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.

llvm-svn: 3222

llvm-svn: 3215

llvm-svn: 3200

This fixes bug: test/Regression/Transforms/LevelRaise/2002-07-31-AssertionFailure.ll

llvm-svn: 3193

* 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

llvm-svn: 3163

 * 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

llvm-svn: 3160

llvm-svn: 3158

attempted to assign it a name.

llvm-svn: 3142

  old call instruction
* Implement conversion of return values for calls.  This fixes bug:
   test/Regression/Transforms/FunctionResolve/retmismatch3.ll

llvm-svn: 3140

  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.

llvm-svn: 3137

arguments dropped.  This fixes bug:
   test/Regression/Transforms/ADCE/2002-07-17-PHIAssertion.ll

llvm-svn: 3134

Implement a new RemoveSuccessor function

llvm-svn: 3131

llvm-svn: 3129

  test/Regression/Transforms/SimplifyCFG/2002-06-24-PHINode.ll

llvm-svn: 3128