llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-10 02:36:06 +00:00

History

Chris Lattner b31189f262 fix PR5978 by peeling the loop so that we avoid shifting the

result int by 8 for the first byte.  While normally harmless,
if the result is smaller than a byte, this shift is invalid.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93018 91177308-0d34-0410-b5e6-96231b3b80d8

2010-01-08 19:02:23 +00:00

IPA

Change dbgs() back to errs() for assert messages as Chris requested.

2009-12-23 23:14:41 +00:00

AliasAnalysis.cpp

Partially address a README by having functionattrs consider calls to

2010-01-06 08:45:52 +00:00

AliasAnalysisCounter.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 22:49:57 +00:00

AliasAnalysisEvaluator.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 22:49:57 +00:00

AliasDebugger.cpp

Remove the AliasAnalysis::getMustAliases method, which is dead.

2009-11-22 16:01:44 +00:00

AliasSetTracker.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 22:49:57 +00:00

Analysis.cpp

…

BasicAliasAnalysis.cpp

move DecomposeGEPExpression out into ValueTracking.cpp

2009-11-26 17:12:50 +00:00

CaptureTracking.cpp

Reuse the Threshold value to size these containers because it's

2009-12-09 18:48:53 +00:00

CFGPrinter.cpp

…

CMakeLists.txt

add to cmake

2009-12-04 04:15:36 +00:00

ConstantFolding.cpp

fix PR5978 by peeling the loop so that we avoid shifting the

2010-01-08 19:02:23 +00:00

DbgInfoPrinter.cpp

Remove dead debug info intrinsics.

2010-01-05 01:10:40 +00:00

DebugInfo.cpp

Convert a ton of simple integer type equality tests to the new predicate.

2010-01-05 20:07:06 +00:00

DomPrinter.cpp

Remove ShortNames from getNodeLabel in DOTGraphTraits

2009-11-30 12:38:47 +00:00

InlineCost.cpp

Add a missing closing parenthesis, and tweak to fit in 80

2009-11-01 19:12:43 +00:00

InstCount.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 23:29:28 +00:00

InstructionSimplify.cpp

factor some logic out of instcombine into a new SimplifyAddInst method.

2009-11-27 17:42:22 +00:00

Interval.cpp

…

IntervalPartition.cpp

…

IVUsers.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 20:20:46 +00:00

LazyValueInfo.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 20:43:58 +00:00

LibCallAliasAnalysis.cpp

…

LibCallSemantics.cpp

…

LiveValues.cpp

remove redundant foward declaration. This function is already in

2009-11-11 00:21:21 +00:00

LoopDependenceAnalysis.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 20:52:41 +00:00

LoopInfo.cpp

Restore dump() methods to Loop and MachineLoop.

2010-01-05 21:08:02 +00:00

LoopPass.cpp

…

Makefile

…

MemoryBuiltins.cpp

Simplify ComputeMultiple so that it doesn't depend on TargetData.

2009-11-18 00:58:27 +00:00

MemoryDependenceAnalysis.cpp

The phi translated pointer can be computed when returning a partially cached result

2009-12-22 04:25:02 +00:00

PHITransAddr.cpp

Change dbgs() back to errs() as Chris requested.

2009-12-23 23:27:15 +00:00

PointerTracking.cpp

remove a bunch of extraneous LLVMContext arguments

2009-11-06 04:27:31 +00:00

PostDominators.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 21:16:54 +00:00

ProfileEstimatorPass.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 21:27:29 +00:00

ProfileInfo.cpp

Change dbgs() back to errs() for assert messages as Chris requested.

2009-12-23 22:59:29 +00:00

ProfileInfoLoader.cpp

…

ProfileInfoLoaderPass.cpp

Change dbgs() back to errs() for assert messages as Chris requested.

2009-12-23 23:00:50 +00:00

ProfileVerifierPass.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 22:10:20 +00:00

README.txt

…

ScalarEvolution.cpp

Remove dump routine and the associated Debug.h from a header. Patch up

2009-12-23 22:58:38 +00:00

ScalarEvolutionAliasAnalysis.cpp

Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an

2009-10-31 14:32:25 +00:00

ScalarEvolutionExpander.cpp

Fix a comment typo.

2009-12-04 01:33:04 +00:00

SparsePropagation.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 22:28:01 +00:00

Trace.cpp

Convert debug messages to use dbgs(). Generally this means

2009-12-23 22:35:10 +00:00

ValueTracking.cpp

teach ComputeNumSignBits to look through PHI nodes.

2010-01-07 23:44:37 +00:00

README.txt

Analysis Opportunities:

//===---------------------------------------------------------------------===//

In test/Transforms/LoopStrengthReduce/quadradic-exit-value.ll, the
ScalarEvolution expression for %r is this:

  {1,+,3,+,2}<loop>

Outside the loop, this could be evaluated simply as (%n * %n), however
ScalarEvolution currently evaluates it as

  (-2 + (2 * (trunc i65 (((zext i64 (-2 + %n) to i65) * (zext i64 (-1 + %n) to i65)) /u 2) to i64)) + (3 * %n))

In addition to being much more complicated, it involves i65 arithmetic,
which is very inefficient when expanded into code.

//===---------------------------------------------------------------------===//