search for: aliasanalysisevalu

...ng, Branch Folding and Common Subexpression Elimination are easily implemented." I've started using it - need to adapt it a bit to work with LLVM 3.9. The project seems promising. I'm a bit surprised LLVM does not contain a DFA module for LLVM IR. I noticed that lib/Analysis/AliasAnalysisEvaluator.cpp and ConstantFolding.cpp seem to implement DFA, but it does not say it; also, lib/Transforms/Scalar/EarlyCSE.cpp performs CSE but without DFA it seems; as already mentioned, there is also lib/CodeGen/LiveIntervalAnalysis.cpp but this pass is performed on Machine instructions. Best rega...

Hi together, i want to create a map containing a set of aliases for each value. For example, for a code like: int main() { int i; int *p1 = &i; int *p2 = &i; return 0; } the map should contain something like: {i --> (p1, p2), ..... } For that, i do followings in my pass: AliasAnalysis &AA = getAnalysis<AliasAnalysis>(); AliasSetTracker *tracker =

...ias aliasing results returned by the alias set tracker and the alias analysis evaluator. so i call opt tool to run my module with the following options "-anders-aa -aa-eval -print-alias-sets -print-all-alias-modref-info" i use 2 classes to print alias analysis, the AliasSetTracket and AliasAnalysisEvaluator. but they give different results. here is a sample program: int main(){ int a[5]; struct { char id[10]; int line; } sym; sym.line =a[1] + 10; a[3] = 3; sym.id[5] = a[3]; return 0; } and here is the ll file define i32 @main() nounwind...

...ias aliasing results returned by the alias set tracker and the alias analysis evaluator. so i call opt tool to run my module with the following options "-anders-aa -aa-eval -print-alias-sets -print-all-alias-modref-info" i use 2 classes to print alias analysis, the AliasSetTracket and AliasAnalysisEvaluator. but they give different results. here is a sample program: int main(){ int a[5]; struct { char id[10]; int line; } sym; sym.line =a[1] + 10; a[3] = 3; sym.id[5] = a[3]; return 0; } and here is the ll file define i32 @main() nounwind...

You can use: http://www.rw.cdl.uni-saarland.de/~grund/papers/cgo08-liveness.pdf -----Original Message----- From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Alex Susu via llvm-dev Sent: Saturday, May 21, 2016 9:39 PM To: llvm-dev <llvm-dev at lists.llvm.org> Subject: [llvm-dev] Live interval analysis on LLVM IR (not on Machine instructions) Hello. Could you

Hello. Could you please tell me how can I implement best a live interval analysis on LLVM IR (not on Machine instructions, which is already available in http://llvm.org/docs/doxygen/html/LiveIntervalAnalysis_8cpp_source.html)? I need to analyze the standard LLVM IR (list of Instruction *) and decide for each SSA variable what is it's live(ness) interval. My problem is that I

...t problem I hit was when I configured with CC, CXX, AR and RANLIB set to mingw cross-tools, but forgot to specify NM as well. This resulted in a load of warnings that scrolled off the screen: nm: AliasAnalysis.o: File format not recognized nm: AliasAnalysisCounter.o: File format not recognized nm: AliasAnalysisEvaluator.o: File format not recognized nm: AliasDebugger.o: File format not recognized nm: AliasSetTracker.o: File format not recognized nm: Analysis.o: File format not recognized ... followed by millions of undefined symbols when linking any executable: llvm[2]: Linking Debug executable opt /home/foa...

Hi I am completely new to LLVM, and I am trying to explore the alias analysis part of it. It seems to me that -basicaa is the most simple alias analysis pass in LLVM. So I would like to try and make it work (to see some alias analysis results of some sample bit code). What I have done is that I ---make lib/Analysis/BasicAliasAnalysis.cpp into a .so file ---write a sample c program, hello.c,

Before the fix, the compiler may simply return 'noalias' for cases it can not really prove to be noalias, but actually correct by luck (or even wrong noalias, but does not result in miscompile). It would be useful to find out the set of missed noalias queries from GlobalModRef with your benchmark and examine if there is some improvement can be done. David On Fri, Jul 17, 2015 at 6:32

...ativePath="..\..\lib\Analysis\AliasAnalysis.cpp"> > > </File> > > <File > > RelativePath="..\..\lib\Analysis\AliasAnalysisCounter.cpp"> > > </File> > > <File > > RelativePath="..\..\lib\Analysis\AliasAnalysisEvaluator.cpp"> > > </File> > > <File > > RelativePath="..\..\lib\Analysis\AliasSetTracker.cpp"> > > </File> > > <File > > RelativePath="..\..\lib\Analysis\BasicAliasAnalysis.cpp"> > > &lt...

...> <File > RelativePath="..\..\lib\Analysis\AliasAnalysis.cpp"> > </File> > <File > RelativePath="..\..\lib\Analysis\AliasAnalysisCounter.cpp"> > </File> > <File > RelativePath="..\..\lib\Analysis\AliasAnalysisEvaluator.cpp"> > </File> > <File > RelativePath="..\..\lib\Analysis\AliasSetTracker.cpp"> > </File> > <File > RelativePath="..\..\lib\Analysis\BasicAliasAnalysis.cpp"> > </File> > <File >...

...for Release+Asserts build llvm[3]: Compiling BitcodeWriter.cpp for Release+Asserts build llvm[3]: Compiling BitcodeReader.cpp for Release+Asserts build llvm[2]: Compiling LLParser.cpp for Release+Asserts build llvm[2]: Compiling AliasAnalysisCounter.cpp for Release+Asserts build llvm[2]: Compiling AliasAnalysisEvaluator.cpp for Release+Asserts build llvm[2]: Compiling AliasDebugger.cpp for Release+Asserts build llvm[3]: Compiling BitcodeWriterPass.cpp for Release+Asserts build llvm[2]: Compiling AliasSetTracker.cpp for Release+Asserts build llvm[3]: Compiling ValueEnumerator.cpp for Release+Asserts build llvm[...