similar to: [LLVMdev] Problem in Adding a pass to LLVM

Hi! On 02.02.2010, at 20:16, ambika wrote: > /home/ambika/llvm1/llvm-obj/Release/lib/ > libLLVMipa.a(ProfileAlias.o): In > function `llvm::createProfileAliasPass()': > ProfileAlias.cpp:(.text+0x46): undefined reference to `vtable for > ProfileAlias' http://gcc.gnu.org/faq.html#vtables Does that help? Andi

-------------- next part -------------- An embedded message was scrubbed... From: ambika <ambika at cse.iitb.ac.in> Subject: [LLVMdev] Can someone help me with error while i make my own pass Date: Thu, 08 Apr 2010 21:40:25 +0530 Size: 4901 URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20100411/33876147/attachment.eml>

Hi, Using this option I do get all the vars as may alias ie MayAlias: i32* %j.0, i32* %k MayAlias: i32* %i.0, i32* %k MayAlias: i32* %i.0, i32* %j.0 Is there any other analysis which will give them as must aliases. Actually what I want to do is implement a flow sensitive points-to(not alias) analysis and then use that information for some optimizations like PRE. Will that be

Tried that but still no success Chris Lattner wrote: > Try doing a clean build, then doing 'make ENABLE_PIC=1' > > -Chris > > On Apr 11, 2010, at 9:13 AM, ambika wrote: > >> >> >> *From: *ambika <ambika at cse.iitb.ac.in <mailto:ambika at cse.iitb.ac.in>> >> *Date: *April 8, 2010 9:10:25 AM PDT >> *To: *llvmdev at cs.uiuc.edu

HI, Developers: I linked libLTO.so in $LLVMROOT/Debug/lib however, my program crashes in assertion at 149line [Pass.cpp] void RegisterPass(const PassInfo &PI) { bool Inserted = PassInfoMap.insert(std::make_pair(PI.getTypeInfo(),&PI)).second; assert(Inserted && "Pass registered multiple times!"); } i confirm that there is only one static variable

Hi, I had asked earlier from my another ID about duplicating a basic block, but that server is down for moment. I was given suggestion to use CloneBasicBlock, but when I used it I get an error : While deleting: i32* %a Use still stuck around after Def is destroyed: store i32* %a, i32** %p, align 4 opt: /home/ambika/llvm_3/llvm-2.6/lib/VMCore/Value.cpp:81: virtual llvm::Value::~Value():

Thanks that helped me out. But now I am facing one more problem. It says : ‘llvm::ModulePass* llvm::createMyAnaPass()’ should have been declared inside ‘llvm’ but I can find no place to declare it. Where should I do it. John Criswell wrote: > ambika at cse.iitb.ac.in wrote: >> Hi, >> >> I am trying to add a pass inn LLVM, and I actually want to add it in >> source

I have done that. I have defined createMyAnaPass() in Passes.h and it is defined in MyAna.cpp and used in LinkAllPasses.h But still the error : /home/ambika/llvm/llvm-obj/tools/opt/Release/opt.o: In function `global constructors keyed to opt.cpp': opt.cpp:(.text+0x1e89): undefined reference to `llvm::createMyAnaPass()' I dont understand whats the problem. Jianzhou Zhao wrote: >

Try doing a clean build, then doing 'make ENABLE_PIC=1' -Chris On Apr 11, 2010, at 9:13 AM, ambika wrote: > > > From: ambika <ambika at cse.iitb.ac.in> > Date: April 8, 2010 9:10:25 AM PDT > To: llvmdev at cs.uiuc.edu > Subject: [LLVMdev] Can someone help me with error while i make my own pass > > > Hi, > > I have added LoaderInterface pass in

Hi Ambika, > Using this option I do get all the vars as may alias ie > > MayAlias: i32* %j.0, i32* %k > MayAlias: i32* %i.0, i32* %k > MayAlias: i32* %i.0, i32* %j.0 > > Is there any other analysis which will give them as must aliases. at -O1 these variables are entirely eliminated here. I'm surprised they aren't eliminated for you. Ciao, Duncan. PS:

On Fri, Jun 4, 2010 at 2:15 AM, Ambika Agarwal <agarwal.ambika at gmail.com> wrote: > Hi, > > I had asked earlier from my another ID about duplicating a basic block, but > that server is down for moment. > I was given suggestion to use CloneBasicBlock, but when I used it I get an > error : > > While deleting: i32* %a > Use still stuck around after Def is

Hi, Suppose I have llvm Instruction as : %9 = load i32* %b, align 4 and I want to extract the name of temporary value used here ie 9. Can any body tell that how can I do that? thanks and regards, Ambika

On Tue, Feb 23, 2010 at 7:17 AM, ambika <ambika at cse.iitb.ac.in> wrote: > Thanks that helped me out. > But now I am facing one more problem. It says : > > ‘llvm::ModulePass* llvm::createMyAnaPass()’ should have been declared > inside ‘llvm’ > > but I can find no place to declare it. > Where should I do it. We can do what scalar optimizations do. All scalar passes

Hi, Yeah I found that it is running LLVM's functions. The functions that are running are: main llvm.dbg.func.start llvm.dbg.stoppoint scanf llvm.dbg.region.end But I dont want all the functions to be called as I am using Dominator Trees and whenever I the statement DominatorTree &DT = getAnalysis<DominatorTree>(F); is encountered by functions other than main, it gives error.

Hi, I am trying to add a pass inn LLVM, and I actually want to add it in source code, not just directly into object code. For that I included the lines in my file MyAna.cpp (llvm-2.6/lib/ana/MyAna.cpp) char MyAna::ID = 0; static RegisterPass<MyAna> X("my-aa","My Analysis"); static RegisterAnalysisGroup<AliasAnalysis> Y(X); ModulePass *llvm::createMyAnaPass() {

No, this is not what I am looking for. I am looking for something like may be a debugger so that I can trace the function calls in source of llvm. llvm-db dosent work it says "debugger not implemented" when i try to use it. Can I use gdb or something like that with llvm. What I basically want is to know that when I run some Alias Analysis then from where the functions of file

Hi, you need something like this in your pass: void YourPass::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<DominatorTree>(); } because you need to specify which analysis you are using. Tobi

But this is already present in my pass. And I am not able to understand the cause for the error: opt: /home/ambika/llvm_3/llvm-2.6/include/llvm/PassAnalysisSupport.h:203: AnalysisType& llvm::Pass::getAnalysisID(const llvm::PassInfo*) const [with AnalysisType = llvm::DominatorTree]: Assertion `ResultPass && "getAnalysis*() called on an analysis that was not "

ambika wrote: > Here is getAnalysisUsage() i am using, > > void getAnalysisUsage(AnalysisUsage &AU) const { > AU.setPreservesAll(); > AU.addRequired<DominatorTree>(); > } > > and then I use it as, > > > bool ptrTest::runOnModule(Module &M) { > > DominatorTree &DT = getAnalysis<DominatorTree>(); > ...... >

Actually I have collected some pointer information in the form [ p -> a,c ]. Now suppose at some node I have information as [p->a,c]. Now i want to find a merge node above this node where this information is actually geting merged. So if I get a merge node above this, I can check in its predecessors if their out has only [p->a] or [p->c] and if not so then I will look for the next