YouCompleteMe

History

Strahinja Val Markovic 8da18e0319 Removing more llvm cruft files		2012-07-05 20:58:10 -07:00
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IPA	Removing more llvm cruft files	2012-07-05 20:58:10 -07:00
AliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
AliasAnalysisCounter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
AliasAnalysisEvaluator.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
AliasDebugger.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
AliasSetTracker.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
Analysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
BasicAliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
BlockFrequencyInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
BranchProbabilityInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
CaptureTracking.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
CFGPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
CMakeLists.txt	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
CodeMetrics.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ConstantFolding.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
DbgInfoPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
DebugInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
DIBuilder.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
DominanceFrontier.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
DomPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
InlineCost.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
InstCount.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
InstructionSimplify.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
Interval.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
IntervalPartition.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
IVUsers.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LazyValueInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LibCallAliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LibCallSemantics.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
Lint.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LLVMBuild.txt	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
Loads.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LoopDependenceAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LoopInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
LoopPass.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
MemDepPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
MemoryBuiltins.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
MemoryDependenceAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ModuleDebugInfoPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
NoAliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
PathNumbering.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
PathProfileInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
PathProfileVerifier.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
PHITransAddr.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
PostDominators.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ProfileEstimatorPass.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ProfileInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ProfileInfoLoader.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ProfileInfoLoaderPass.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ProfileVerifierPass.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
README.txt	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
RegionInfo.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
RegionPass.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
RegionPrinter.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ScalarEvolution.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ScalarEvolutionAliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ScalarEvolutionExpander.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ScalarEvolutionNormalization.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
SparsePropagation.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
Trace.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
TypeBasedAliasAnalysis.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00
ValueTracking.cpp	Adding llvm and clang in-source	2012-07-05 17:51:06 -07:00

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))

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