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llvm-6502/lib/Analysis
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Dan Gohman c93b4cff89 Add the ability to "intern" FoldingSetNodeID data into a 
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98829 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-18 16:16:38 +00:00
..
IPA
Update CMake build.
2010-03-01 19:42:47 +00:00
AliasAnalysis.cpp
Partially address a README by having functionattrs consider calls to
2010-01-06 08:45:52 +00:00
AliasAnalysisCounter.cpp
Fix a missing newline in debug output.
2010-03-01 17:42:55 +00:00
AliasAnalysisEvaluator.cpp
There are two ways of checking for a given type, for example isa<PointerType>(T)
2010-02-16 11:11:14 +00:00
AliasDebugger.cpp
adopt getAdjustedAnalysisPointer in a few more passes.
2010-01-20 20:09:02 +00:00
AliasSetTracker.cpp
Change dbgs() back to errs() as Chris requested.
2009-12-23 22:49:57 +00:00
Analysis.cpp
"In order to ease automatic bindings generation, it would be helpful if boolean values were distinguishable from integers. The attached patch introduces "typedef int LLVMBool;", and uses LLVMBool instead of int throughout the C API, wherever a boolean value is called for."
2010-01-09 22:27:07 +00:00
BasicAliasAnalysis.cpp
There are two ways of checking for a given type, for example isa<PointerType>(T)
2010-02-16 11:11:14 +00:00
CaptureTracking.cpp
There are two ways of checking for a given type, for example isa<PointerType>(T)
2010-02-16 11:11:14 +00:00
CFGPrinter.cpp
Remove includes of Support/Compiler.h that are no longer needed after the
2009-10-25 06:57:41 +00:00
CMakeLists.txt
add to cmake
2009-12-04 04:15:36 +00:00
ConstantFolding.cpp
When constant folding GEP of GEP, do not crash if an index of
2010-03-12 17:55:20 +00:00
DbgInfoPrinter.cpp
Remove dead debug info intrinsics.
2010-01-05 01:10:40 +00:00
DebugInfo.cpp
Start using DIFile. See updated SourceLevelDebugging.html for more information.
2010-03-09 00:44:10 +00:00
DomPrinter.cpp
Create Generic DOTGraphTraits Printer/Viewer
2010-01-16 10:56:41 +00:00
InlineCost.cpp
Treat copysignl like the other copysign functions.
2010-03-15 14:01:44 +00:00
InstCount.cpp
Change dbgs() back to errs() as Chris requested.
2009-12-23 23:29:28 +00:00
InstructionSimplify.cpp
fix incorrect folding of icmp with undef, PR6481.
2010-03-03 19:46:03 +00:00
Interval.cpp
Change Pass::print to take a raw ostream instead of std::ostream,
2009-08-23 06:03:38 +00:00
IntervalPartition.cpp
Change Pass::print to take a raw ostream instead of std::ostream,
2009-08-23 06:03:38 +00:00
IVUsers.cpp
Spelling fixes.
2010-03-01 17:49:51 +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
Fix "the the" and similar typos.
2010-02-10 16:03:48 +00:00
LoopDependenceAnalysis.cpp
Convert debug messages to use dbgs(). Generally this means
2009-12-23 20:52:41 +00:00
LoopInfo.cpp
Add a DominatorTree argument to isLCSSA so that it doesn't have to
2010-03-10 19:38:49 +00:00
LoopPass.cpp
eliminate a bunch more unneeded dynamic_cast's.
2010-01-22 05:37:10 +00:00
Makefile
make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.
2010-01-24 20:43:08 +00:00
MemoryBuiltins.cpp
Fix "the the" and similar typos.
2010-02-10 16:03:48 +00:00
MemoryDependenceAnalysis.cpp
Reapply r97010, the speculative revert failed.
2010-02-24 08:48:04 +00:00
PHITransAddr.cpp
Reapply r97010, the speculative revert failed.
2010-02-24 08:48:04 +00:00
PointerTracking.cpp
There are two ways of checking for a given type, for example isa<PointerType>(T)
2010-02-16 11:11:14 +00:00
PostDominators.cpp
Convert debug messages to use dbgs(). Generally this means
2009-12-23 21:16:54 +00:00
ProfileEstimatorPass.cpp
adopt getAdjustedAnalysisPointer in a few more passes.
2010-01-20 20:09:02 +00:00
ProfileInfo.cpp
adopt getAdjustedAnalysisPointer in a few more passes.
2010-01-20 20:09:02 +00:00
ProfileInfoLoader.cpp
Reapplied r81355 with the problems fixed.
2009-09-16 11:35:50 +00:00
ProfileInfoLoaderPass.cpp
adopt getAdjustedAnalysisPointer in a few more passes.
2010-01-20 20:09:02 +00:00
ProfileVerifierPass.cpp
Convert debug messages to use dbgs(). Generally this means
2009-12-23 22:10:20 +00:00
README.txt
Create a README.txt for lib/Analysis, and add an entry.
2009-09-28 18:38:53 +00:00
ScalarEvolution.cpp
Add the ability to "intern" FoldingSetNodeID data into a
2010-03-18 16:16:38 +00:00
ScalarEvolutionAliasAnalysis.cpp
Add a comment.
2010-03-01 17:56:04 +00:00
ScalarEvolutionExpander.cpp
Reapply r98755 with a thinko which miscompiled gengtype fixed.
2010-03-18 01:17:13 +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
Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions.
2010-03-13 02:20:29 +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.

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