llvm-mirror

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History

Victor Hernandez 8428eb5720 Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary. llvm-svn: 84969		2009-10-23 21:09:37 +00:00
..
IPA	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
AliasAnalysis.cpp	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
AliasAnalysisCounter.cpp
AliasAnalysisEvaluator.cpp
AliasDebugger.cpp
AliasSetTracker.cpp
Analysis.cpp
BasicAliasAnalysis.cpp	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
CaptureTracking.cpp
CFGPrinter.cpp	make DOTGraphTraits public, patch by Tobias Grosser!	2009-10-18 04:09:11 +00:00
CMakeLists.txt	add function passes for printing various dominator datastructures	2009-10-18 04:10:40 +00:00
ConstantFolding.cpp	teach libanalysis to simplify vector loads with bitcast sources. This	2009-10-23 06:57:37 +00:00
DbgInfoPrinter.cpp	Remove std::string uses from DebugInfo interface.	2009-09-29 18:40:58 +00:00
DebugInfo.cpp	"there is not any instruction with attached debug info in this module" does not mean "there is no debug info in this module". :)	2009-10-13 17:35:35 +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	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
InstCount.cpp	Remove MallocInst from LLVM Instructions.	2009-10-17 01:18:07 +00:00
Interval.cpp
IntervalPartition.cpp
IVUsers.cpp	Instead of testing whether an instruction dominates the loop preheader,	2009-09-27 15:30:00 +00:00
LibCallAliasAnalysis.cpp
LibCallSemantics.cpp
LiveValues.cpp
LoopDependenceAnalysis.cpp
LoopInfo.cpp	Fix another place that calls Loop::contains a lot to construct a sorted	2009-10-20 20:41:13 +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
MallocHelper.cpp	Invert isSafeToGetMallocArraySize check because we return NULL when we don't know the size.	2009-10-16 18:08:17 +00:00
MemoryDependenceAnalysis.cpp	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
PointerTracking.cpp	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +00:00
PostDominators.cpp
ProfileEstimatorPass.cpp	Make ProfileEstimator even more robust on general CFGs.	2009-09-11 08:39:33 +00:00
ProfileInfo.cpp
ProfileInfoLoader.cpp	Reapplied r81355 with the problems fixed.	2009-09-16 11:35:50 +00:00
ProfileInfoLoaderPass.cpp	Reapplied r81355 with the problems fixed.	2009-09-16 11:35:50 +00:00
ProfileVerifierPass.cpp	Bugfix. Sorry.	2009-09-11 08:43:15 +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	Revert r83606 and add comments explaining why it isn't safe.	2009-10-09 16:35:06 +00:00
ScalarEvolutionAliasAnalysis.cpp
ScalarEvolutionExpander.cpp	Introduce and use convenience methods for getting pointer types	2009-10-06 15:40:36 +00:00
SparsePropagation.cpp	Add a comment explaining why you would ever want to do this.	2009-09-19 19:00:06 +00:00
Trace.cpp
ValueTracking.cpp	Remove AllocationInst. Since MallocInst went away, AllocaInst is the only subclass of AllocationInst, so it no longer is necessary.	2009-10-23 21:09:37 +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.

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