llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-15 07:34:33 +00:00

History

Benjamin Kramer d9f32c20da InstSimplify: stripAndComputeConstantOffsets can be called with vectors of pointers too.

Prepare it for vectors of pointers and handle simple cases. We don't handle
complicated cases because accumulateConstantOffset bails on pointer vectors.
Fixes selfhost on i386.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174179 91177308-0d34-0410-b5e6-96231b3b80d8

2013-02-01 15:21:10 +00:00

IPA

Begin fleshing out an interface in TTI for modelling the costs of

2013-01-22 11:26:02 +00:00

AliasAnalysis.cpp

Move isKnownNonNull out of AliasAnalysis.h and into ValueTracking.cpp since

2013-01-31 02:40:59 +00:00

AliasAnalysisCounter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

AliasAnalysisEvaluator.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

AliasDebugger.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

AliasSetTracker.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

Analysis.cpp

Move the initialization to the Analysis library as well as the pass.

2013-01-07 03:33:08 +00:00

BasicAliasAnalysis.cpp

Actually update the CMake and Makefile builds correctly, and update the

2013-01-02 12:09:16 +00:00

BlockFrequencyInfo.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

BranchProbabilityInfo.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

CaptureTracking.cpp

Give CaptureTracker::shouldExplore a base implementation. Most users want to do

2012-10-08 22:12:48 +00:00

CFGPrinter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

CMakeLists.txt

Sink InlineCost.cpp into IPA -- it is now officially an interprocedural

2013-01-21 12:09:41 +00:00

CodeMetrics.cpp

Begin fleshing out an interface in TTI for modelling the costs of

2013-01-22 11:26:02 +00:00

ConstantFolding.cpp

ConstantFolding: Add a missing folding that leads to a miscompile.

2013-01-24 16:28:28 +00:00

CostModel.cpp

Move TargetTransformInfo to live under the Analysis library. This no

2013-01-07 03:08:10 +00:00

DbgInfoPrinter.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

DependenceAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

DominanceFrontier.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

DomPrinter.cpp

…

InstCount.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

InstructionSimplify.cpp

InstSimplify: stripAndComputeConstantOffsets can be called with vectors of pointers too.

2013-02-01 15:21:10 +00:00

Interval.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

IntervalPartition.cpp

…

IVUsers.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

LazyValueInfo.cpp

Move isKnownNonNull out of AliasAnalysis.h and into ValueTracking.cpp since

2013-01-31 02:40:59 +00:00

LibCallAliasAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

LibCallSemantics.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

Lint.cpp

Change GetPointerBaseWithConstantOffset's DataLayout argument from a

2013-01-31 02:00:45 +00:00

LLVMBuild.txt

…

Loads.cpp

Change GetPointerBaseWithConstantOffset's DataLayout argument from a

2013-01-31 02:00:45 +00:00

LoopInfo.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

LoopPass.cpp

Enable the new LoopInfo algorithm by default.

2012-06-26 04:11:38 +00:00

Makefile

…

MemDepPrinter.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

MemoryBuiltins.cpp

Reverting r171325 & r172363. This was causing a mis-compile on the self-hosted LTO build bots.

2013-01-17 21:28:46 +00:00

MemoryDependenceAnalysis.cpp

Change GetPointerBaseWithConstantOffset's DataLayout argument from a

2013-01-31 02:00:45 +00:00

ModuleDebugInfoPrinter.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

NoAliasAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PathNumbering.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PathProfileInfo.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PathProfileVerifier.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PHITransAddr.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PostDominators.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ProfileDataLoader.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ProfileDataLoaderPass.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ProfileEstimatorPass.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ProfileInfo.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ProfileInfoLoader.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ProfileInfoLoaderPass.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ProfileVerifierPass.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

PtrUseVisitor.cpp

Hoist the GEP constant address offset computation to a common home on

2012-12-11 10:29:10 +00:00

README.txt

…

RegionInfo.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

RegionPass.cpp

Remove the the block_node_iterator of Region, replace it by the block_iterator.

2012-08-27 13:49:24 +00:00

RegionPrinter.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ScalarEvolution.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ScalarEvolutionAliasAnalysis.cpp

Use the new script to sort the includes of every file under lib.

2012-12-03 16:50:05 +00:00

ScalarEvolutionExpander.cpp

SCEVExpander fix. RAUW needs to update the InsertedExpressions cache.

2013-01-14 21:00:37 +00:00

ScalarEvolutionNormalization.cpp

…

SparsePropagation.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

TargetTransformInfo.cpp

Begin fleshing out an interface in TTI for modelling the costs of

2013-01-22 11:26:02 +00:00

Trace.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

TypeBasedAliasAnalysis.cpp

Move all of the header files which are involved in modelling the LLVM IR

2013-01-02 11:36:10 +00:00

ValueTracking.cpp

Move isKnownNonNull out of AliasAnalysis.h and into ValueTracking.cpp since

2013-01-31 02:40:59 +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.

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

In formatValue in test/CodeGen/X86/lsr-delayed-fold.ll,

ScalarEvolution is forming this expression:

((trunc i64 (-1 * %arg5) to i32) + (trunc i64 %arg5 to i32) + (-1 * (trunc i64 undef to i32)))

This could be folded to

(-1 * (trunc i64 undef to i32))

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