Commit Graph

510 Commits

Author SHA1 Message Date
cc63f1c674 Eliminated the MemAccessInst class, folding contents into GEP class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3487 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 23:37:20 +00:00
24ea74eb9a Load & StoreInst no longer derive from MemAccessInst, so we don't have
to handle indexing anymore


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3485 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 22:49:05 +00:00
8e4fc2598d *** empty log message ***
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3483 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 22:48:32 +00:00
f5e84aa088 Add capability of using pointer analysis to LICM
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3478 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 21:39:55 +00:00
0712d55512 Remove long obsolete comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3476 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 21:25:54 +00:00
c20e24524f Instcombine PHI's of the form %PN = phi PN, X into X and
%PN = phi PN, PN, PN into 0 (because the phi must not be reachable)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3470 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 20:22:01 +00:00
d456ec983c Convert GCSE pass to use new alias analysis infrastructure
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3463 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 18:24:48 +00:00
ff9a9e5b13 Do not generate load/store instructions with indexing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3461 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 16:41:31 +00:00
a69fd90358 - Split Dominators.h into Dominators.h & PostDominators.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3432 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 23:43:50 +00:00
b63b29d9b0 Do not generate loads/stores with indexing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3422 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:11:33 +00:00
25ba05972f Remove extraneous #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3421 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:11:14 +00:00
3f9b28d075 Do not create load/stores with indexes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3420 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:10:52 +00:00
905641bb01 Remove an optimization that isn't.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3419 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:10:06 +00:00
546b027b3e - Do not expose ::ID from any of the analyses anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3417 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 17:09:49 +00:00
b319faff77 fixed bug: test/Regression/Linker/2002-08-20-ConstantExpr.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3412 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 19:35:11 +00:00
05bd1b2eee - instcombine (~(a < b)) into (a >= b)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3406 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 18:24:26 +00:00
f02c46834a - implemented instcombine of phi (X, X, X) -> X
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3397 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 15:35:35 +00:00
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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