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Ahmed Charles 56440fd820 Replace OwningPtr<T> with std::unique_ptr<T>. 
This compiles with no changes to clang/lld/lldb with MSVC and includes
overloads to various functions which are used by those projects and llvm
which have OwningPtr's as parameters. This should allow out of tree
projects some time to move. There are also no changes to libs/Target,
which should help out of tree targets have time to move, if necessary.

llvm-svn: 203083
 		2014-03-06 05:51:42 +00:00
..
IPA [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
AliasAnalysis.cpp [C++11] Make this interface accept const Use pointers and use override 2014-03-05 10:21:48 +00:00
AliasAnalysisCounter.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
AliasAnalysisEvaluator.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
AliasDebugger.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
AliasSetTracker.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
Analysis.cpp [cleanup] Re-sort all the includes with utils/sort_includes.py. 2014-03-04 10:07:28 +00:00
BasicAliasAnalysis.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
BlockFrequencyInfo.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
BranchProbabilityInfo.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
CFG.cpp Make succ_iterator a real random access iterator and clean up a couple of users. 2014-02-10 14:17:42 +00:00
CFGPrinter.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
CMakeLists.txt [PM] Add a new "lazy" call graph analysis pass for the new pass manager. 2014-02-06 04:37:03 +00:00
CaptureTracking.cpp [C++11] Make this interface accept const Use pointers and use override 2014-03-05 10:21:48 +00:00
CodeMetrics.cpp [Modules] Move CallSite into the IR library where it belogs. It is 2014-03-04 11:01:28 +00:00
ConstantFolding.cpp Allow constant folding of copysign 2014-03-06 05:32:52 +00:00
CostModel.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
Delinearization.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
DependenceAnalysis.cpp [Modules] Move InstIterator out of the Support library, where it had no 2014-03-04 10:30:26 +00:00
DomPrinter.cpp [PM] Split DominatorTree into a concrete analysis result object which 2014-01-13 13:07:17 +00:00
DominanceFrontier.cpp [PM] Split DominatorTree into a concrete analysis result object which 2014-01-13 13:07:17 +00:00
IVUsers.cpp Make DataLayout a plain object, not a pass. 2014-02-25 17:30:31 +00:00
InstCount.cpp [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
InstructionSimplify.cpp [Modules] Move the ConstantRange class into the IR library. This is 2014-03-04 12:24:34 +00:00
Interval.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
IntervalPartition.cpp
…
LLVMBuild.txt
…
LazyCallGraph.cpp [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
LazyValueInfo.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
LibCallAliasAnalysis.cpp
…
LibCallSemantics.cpp
…
Lint.cpp [Layering] Move InstVisitor.h into the IR library as it is pretty 2014-03-06 03:23:41 +00:00
Loads.cpp
…
LoopInfo.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
LoopPass.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
Makefile
…
MemDepPrinter.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
MemoryBuiltins.cpp Update optimization passes to handle inalloca arguments 2014-01-28 02:38:36 +00:00
MemoryDependenceAnalysis.cpp Replace OwningPtr<T> with std::unique_ptr<T>. 2014-03-06 05:51:42 +00:00
ModuleDebugInfoPrinter.cpp [Layering] Move DebugInfo.h into the IR library where its implementation 2014-03-06 00:46:21 +00:00
NoAliasAnalysis.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
PHITransAddr.cpp Rename some member variables from TD to DL. 2014-02-18 15:33:12 +00:00
PostDominators.cpp [Modules] Move CFG.h to the IR library as it defines graph traits over 2014-03-04 11:45:46 +00:00
PtrUseVisitor.cpp [C++11] Switch all uses of the llvm_move macro to use std::move 2014-03-02 04:08:41 +00:00
README.txt
…
RegionInfo.cpp [C++11] Add a basic block range view for RegionInfo 2014-03-03 13:00:39 +00:00
RegionPass.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
RegionPrinter.cpp [C++11] Add a basic block range view for RegionInfo 2014-03-03 13:00:39 +00:00
ScalarEvolution.cpp Add missing parenthesis in SCEV comment 2014-03-05 10:37:17 +00:00
ScalarEvolutionAliasAnalysis.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
ScalarEvolutionExpander.cpp [C++11] Replace llvm::next and llvm::prior with std::next and std::prev. 2014-03-02 12:27:27 +00:00
ScalarEvolutionNormalization.cpp [cleanup] Move the Dominators.h and Verifier.h headers into the IR 2014-01-13 09:26:24 +00:00
SparsePropagation.cpp
…
TargetTransformInfo.cpp [Modules] Move CallSite into the IR library where it belogs. It is 2014-03-04 11:01:28 +00:00
Trace.cpp Put the functionality for printing a value to a raw_ostream as an 2014-01-09 02:29:41 +00:00
TypeBasedAliasAnalysis.cpp [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-05 07:30:04 +00:00
ValueTracking.cpp [Modules] Move the ConstantRange class into the IR library. This is 2014-03-04 12:24:34 +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))

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