llvm-mirror/lib/Analysis
2009-11-25 17:36:49 +00:00
..
IPA Remove the AliasAnalysis::getMustAliases method, which is dead. 2009-11-22 16:01:44 +00:00
AliasAnalysis.cpp use the new isNoAlias method to simplify some code, only do an escaping check if 2009-11-23 16:46:41 +00:00
AliasAnalysisCounter.cpp Remove includes of Support/Compiler.h that are no longer needed after the 2009-10-25 06:57:41 +00:00
AliasAnalysisEvaluator.cpp Remove includes of Support/Compiler.h that are no longer needed after the 2009-10-25 06:57:41 +00:00
AliasDebugger.cpp Remove the AliasAnalysis::getMustAliases method, which is dead. 2009-11-22 16:01:44 +00:00
AliasSetTracker.cpp Remove the AliasAnalysis::getMustAliases method, which is dead. 2009-11-22 16:01:44 +00:00
Analysis.cpp Tidy #includes. 2009-08-11 16:02:12 +00:00
BasicAliasAnalysis.cpp fix comment, thanks all :) 2009-11-23 17:07:35 +00:00
CaptureTracking.cpp Use stripPointerCasts(). Thanks Duncan! 2009-11-20 19:33:16 +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 Stub out a new lazy value info pass, which will eventually 2009-11-11 00:22:30 +00:00
ConstantFolding.cpp Make ConstantFoldConstantExpression recursively visit the entire 2009-11-23 16:22:21 +00:00
DbgInfoPrinter.cpp Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces. 2009-10-25 06:33:48 +00:00
DebugInfo.cpp Use StringRef (again) in DebugInfo interface. 2009-11-25 17:36:49 +00:00
DomPrinter.cpp fix the other issue with ID's, hopefully really fixing the linux build. 2009-10-18 04:58:34 +00:00
InlineCost.cpp Add a missing closing parenthesis, and tweak to fit in 80 2009-11-01 19:12:43 +00:00
InstCount.cpp Remove FreeInst. 2009-10-26 23:43:48 +00:00
InstructionSimplify.cpp move some generally useful functions out of jump threading 2009-11-10 22:26:15 +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 enable iv-users simplification by default 2009-11-23 23:25:54 +00:00
LazyValueInfo.cpp typo spotted by duncan. 2009-11-16 03:51:42 +00:00
LibCallAliasAnalysis.cpp LibCallAliasAnalysis doesn't use TargetData. 2009-07-31 20:56:29 +00:00
LibCallSemantics.cpp Remove Value::getNameLen 2009-07-26 08:34:35 +00:00
LiveValues.cpp remove redundant foward declaration. This function is already in 2009-11-11 00:21:21 +00:00
LoopDependenceAnalysis.cpp remove a few dead insertion methods. 2009-08-24 02:39:26 +00:00
LoopInfo.cpp Teach getSmallConstantTripMultiple about Shl operators. 2009-11-20 01:09:34 +00:00
LoopPass.cpp Fix this debug output to handle the case where the loop has been deleted. 2009-09-28 15:40:01 +00:00
Makefile Removed trailing whitespace from Makefiles. 2009-01-09 16:44:42 +00:00
MemoryBuiltins.cpp Simplify ComputeMultiple so that it doesn't depend on TargetData. 2009-11-18 00:58:27 +00:00
MemoryDependenceAnalysis.cpp Remove dead code. While there, also turn a few 'T* ' into 'T *' to match the 2009-11-22 02:38:11 +00:00
PointerTracking.cpp remove a bunch of extraneous LLVMContext arguments 2009-11-06 04:27:31 +00:00
PostDominators.cpp Change Pass::print to take a raw ostream instead of std::ostream, 2009-08-23 06:03:38 +00:00
ProfileEstimatorPass.cpp Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces. 2009-10-25 06:33:48 +00:00
ProfileInfo.cpp Remove includes of Support/Compiler.h that are no longer needed after the 2009-10-25 06:57:41 +00:00
ProfileInfoLoader.cpp Reapplied r81355 with the problems fixed. 2009-09-16 11:35:50 +00:00
ProfileInfoLoaderPass.cpp Apply fix for PR5135, Credit to Andreas Neustifter. 2009-11-02 02:55:39 +00:00
ProfileVerifierPass.cpp Apply fix for PR5135, Credit to Andreas Neustifter. 2009-11-02 02:55:39 +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 Remove dead LLVMContext argument. 2009-11-23 03:26:09 +00:00
ScalarEvolutionAliasAnalysis.cpp Make ScalarEvolutionAliasAnalysis slightly more aggressive, by making an 2009-10-31 14:32:25 +00:00
ScalarEvolutionExpander.cpp Introduce and use convenience methods for getting pointer types 2009-10-06 15:40:36 +00:00
SparsePropagation.cpp rename indbr -> indirectbr to appease the residents of #llvm. 2009-10-28 00:19:10 +00:00
Trace.cpp eliminate the "Value" printing methods that print to a std::ostream. 2009-08-23 04:37:46 +00:00
ValueTracking.cpp Remove unused LLVMContext. 2009-11-23 03:29:18 +00:00

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.

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