llvm/lib/Analysis
Dan Gohman 907857d746 The trouble with testing for "ModRef" and "NoModRef" is that
one is a suffix of the other, and FileCheck accepts superstrings.
Adjust the output to avoid this problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110280 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-04 23:37:55 +00:00
..
IPA Remove PointerAccessInfo, which nothing was using. 2010-08-03 23:08:10 +00:00
AliasAnalysis.cpp Remove PointerAccessInfo, which nothing was using. 2010-08-03 23:08:10 +00:00
AliasAnalysisCounter.cpp Thread const correctness through a bunch of AliasAnalysis interfaces and 2010-08-03 21:48:53 +00:00
AliasAnalysisEvaluator.cpp The trouble with testing for "ModRef" and "NoModRef" is that 2010-08-04 23:37:55 +00:00
AliasDebugger.cpp Thread const correctness through a bunch of AliasAnalysis interfaces and 2010-08-03 21:48:53 +00:00
AliasSetTracker.cpp Thread const correctness through a bunch of AliasAnalysis interfaces and 2010-08-03 21:48:53 +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 The two-callsite form of AliasAnalysis::getModRefInfo is documented 2010-08-04 22:56:29 +00:00
CaptureTracking.cpp simplify 2010-07-28 10:57:28 +00:00
CFGPrinter.cpp Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration. 2010-07-21 23:07:00 +00:00
CMakeLists.txt Fix CMake build 2010-08-03 02:38:20 +00:00
ConstantFolding.cpp eliminate CallInst::ArgOffset 2010-07-16 09:38:02 +00:00
DbgInfoPrinter.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
DebugInfo.cpp Add explicit constructors. Patch by Renato Golin. 2010-08-02 22:51:46 +00:00
DomPrinter.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
InlineCost.cpp use ImmutableCallSite for const-corrgoodness 2010-07-27 14:15:29 +00:00
InstCount.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
InstructionSimplify.cpp Fix PR7647, handling the case when 'To' ends up being 2010-07-15 06:36:08 +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 Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
IVUsers.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
LazyValueInfo.cpp Add an initial implementation of PHI translation for LazyValueInfo. This involves rolling back some 2010-07-30 23:59:40 +00:00
LibCallAliasAnalysis.cpp Thread const correctness through a bunch of AliasAnalysis interfaces and 2010-08-03 21:48:53 +00:00
LibCallSemantics.cpp Thread const correctness through a bunch of AliasAnalysis interfaces and 2010-08-03 21:48:53 +00:00
Lint.cpp Add a convenient form of AliasAnalysis::alias for the case where the sizes 2010-08-03 00:56:30 +00:00
LiveValues.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
Loads.cpp Move FindAvailableLoadedValue isSafeToLoadUnconditionally out of 2010-05-28 16:19:17 +00:00
LoopDependenceAnalysis.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
LoopInfo.cpp Eliminate getCanonicalInductionVariableIncrement's last user and 2010-07-23 21:34:51 +00:00
LoopPass.cpp Ok, third time's the charm. No changes from last time except the CMake 2010-04-02 23:17:14 +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 minor enhancement to llvm::isFreeCall API: return CallInst; no functional change 2010-06-23 21:51:12 +00:00
MemoryDependenceAnalysis.cpp Add a convenient form of AliasAnalysis::alias for the case where the sizes 2010-08-03 00:56:30 +00:00
ModuleDebugInfoPrinter.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
PHITransAddr.cpp Reapply r97010, the speculative revert failed. 2010-02-24 08:48:04 +00:00
PointerTracking.cpp Add a missing function. 2010-08-04 11:42:45 +00:00
PostDominators.cpp Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration. 2010-07-21 23:07:00 +00:00
ProfileEstimatorPass.cpp Speculatively revert r108813, in an attempt to get the self-host buildbots working again. I don't see why this patch 2010-07-20 08:26:15 +00:00
ProfileInfo.cpp Add INSTANTIATE_AG_PASS, which combines RegisterPass<> with RegisterAnalysisGroup<> for pass registration. 2010-07-21 23:07:00 +00:00
ProfileInfoLoader.cpp Reapplied r81355 with the problems fixed. 2009-09-16 11:35:50 +00:00
ProfileInfoLoaderPass.cpp Speculatively revert r108813, in an attempt to get the self-host buildbots working again. I don't see why this patch 2010-07-20 08:26:15 +00:00
ProfileVerifierPass.cpp Fix batch of converting RegisterPass<> to INTIALIZE_PASS(). 2010-07-21 22:09:45 +00:00
README.txt When checking whether the special handling for an addrec increment which 2010-04-26 21:46:36 +00:00
RegionInfo.cpp Fix namespace polution. 2010-08-02 18:50:06 +00:00
RegionPrinter.cpp Fix namespace polution. 2010-08-02 18:50:06 +00:00
ScalarEvolution.cpp Fix a minor bug which resulted in intermediate calculations 2010-08-04 19:52:50 +00:00
ScalarEvolutionAliasAnalysis.cpp Introduce a symbolic constant for ~0u for use with AliasAnalysis. 2010-08-03 01:03:11 +00:00
ScalarEvolutionExpander.cpp Fix SCEVExpander::visitAddRecExpr so that it remembers the induction variable 2010-07-26 18:28:14 +00:00
ScalarEvolutionNormalization.cpp Fix SCEV denormalization of expressions where the exit value from 2010-07-20 17:06:20 +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
TypeBasedAliasAnalysis.cpp Fix a typo Devang noticed. 2010-08-03 16:48:31 +00:00
ValueTracking.cpp use ArgOperand accessors 2010-06-23 23:38:07 +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.

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

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))

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