llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-02-21 21:29:41 +00:00

History

Benjamin Kramer 4d63c8daec CaptureTracking: Plug a loophole in the "too many uses" heuristic.

The heuristic was added to avoid spending too much compile time A specially
crafted test case (PR17461, PR16474) with many uses on a select or bitcast
instruction can still trigger the slow case. Add a check for that case.

This only affects compile time, don't have a good way to test it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191896 91177308-0d34-0410-b5e6-96231b3b80d8

2013-10-03 13:24:02 +00:00

IPA

Disable inlining between sanitized and non-sanitized functions.

2013-08-08 08:22:39 +00:00

AliasAnalysis.cpp

Reimplement isPotentiallyReachable to make nocapture deduction much stronger.

2013-07-27 01:24:00 +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

Support in AAEvaluator to print alias queries of loads/stores with TBAA tags.

2013-03-22 22:34:41 +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

In AliasSetTracker, do not change the alias set to "mod/ref" when adding

2013-09-12 20:15:50 +00:00

Analysis.cpp

Remove the very substantial, largely unmaintained legacy PGO

2013-10-02 15:42:23 +00:00

BasicAliasAnalysis.cpp

Use type helper functions

2013-09-27 22:18:51 +00:00

BlockFrequencyInfo.cpp

BlockFrequency: Bump up the entry frequency a bit.

2013-06-25 13:34:40 +00:00

BranchProbabilityInfo.cpp

Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.

2013-07-04 01:31:24 +00:00

CaptureTracking.cpp

CaptureTracking: Plug a loophole in the "too many uses" heuristic.

2013-10-03 13:24:02 +00:00

CFG.cpp

Add some constantness.

2013-08-20 23:04:15 +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

Remove the very substantial, largely unmaintained legacy PGO

2013-10-02 15:42:23 +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

Fix a constant folding address space place I missed.

2013-09-17 23:23:16 +00:00

CostModel.cpp

Move variable into assert to avoid unused variable warning.

2013-09-17 21:13:57 +00:00

DependenceAnalysis.cpp

Remove extraneous semicolon.

2013-08-06 16:40:40 +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

remove the blank line from previous ci.

2012-02-04 03:18:47 +00:00

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

Teach MemoryBuiltins and InstructionSimplify that operator new never returns NULL.

2013-09-24 16:37:51 +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

Use SmallVectorImpl::iterator/const_iterator instead of SmallVector to avoid specifying the vector size.

2013-07-04 01:31:24 +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

Fix lint assert on integer vector division

2013-08-26 23:29:33 +00:00

LLVMBuild.txt

LLVMBuild: Introduce a common section which currently has a list of the

2011-12-12 22:45:54 +00:00

Loads.cpp

Change GetPointerBaseWithConstantOffset's DataLayout argument from a

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

LoopInfo.cpp

Add 'const' qualifiers to static const char* variables.

2013-07-16 01:17:10 +00:00

LoopPass.cpp

Comment: try to clarify loop iteration order.

2013-07-20 23:10:31 +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

ObjectSizeOffsetEvaluator: Don't run into infinite recursion if we have a cyclic GEP.

2013-09-29 19:39:13 +00:00

MemoryDependenceAnalysis.cpp

Fix xemacs mode line, don't put them in .cpp files (just header files). No

2013-06-10 23:10:59 +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

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

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

Reorder headers according to lint.

2013-08-21 21:14:19 +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

Minor code simplification

2013-09-27 22:38:23 +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 a regression I introduced by to eagerly adding RAII objects.

2013-10-01 12:17:11 +00:00

ScalarEvolutionNormalization.cpp

More dead code removal (using -Wunreachable-code)

2012-01-20 21:51:11 +00:00

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

Costmodel: Add support for horizontal vector reductions

2013-09-17 18:06:50 +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

TBAA: try to fix the dragonegg bots.

2013-09-27 22:59:21 +00:00

ValueTracking.cpp

Teach MemoryBuiltins and InstructionSimplify that operator new never returns NULL.

2013-09-24 16:37:51 +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))

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