similar to: [LLVMdev] Error when loading libraries using 'opt -load' command

Hi, I have been trying to randomize blocks in a program and modified "BasicBlockPlacement.cpp" for the purpose but getting segmentation fault.I am not able to determine the problem.Can anyone please decrypt these error messages or suggest what might be the possible cause of failure? -----------------------------------------------------------------------------------------------------

On Sun, 2006-08-27 at 21:57 -0500, Jing Yu wrote: > Hi, > Hi Jing, > I am following the instructions on Writing an LLVM Pass on > Darwin(8.7.0) powerpc. The loadable library is built. But "opt -load > " gives error saying "Symbol not found". I am using LLVM 1.8. Could > someone tell me how to fix it? I have tried the same procedure on > Pentium4 Redhat9.

Thanks a lot for replying Chris, I m trying to randomize the blocks in a program.I generate a random number( between the current "InsertPos" and the last block), and then iterate through the list of basicblocks , picking up block with position equal to that of the random number and place it into the current InsertPos and increment InsertPos. Running it like this:

Hi, I've written a FunctionPass that happens to be read-only (preserving): It doesn't modify the code in any way; it just does some analysis and dumps out the results for each function by overriding FunctionPass::print. I now need to make some changes to the pass, and these changes will mean that the results cannot be known until all functions have been visited. So there's

On Mon, 7 Feb 2005, Tanu Sharma wrote: > I have been trying to randomize blocks in a program and modified > "BasicBlockPlacement.cpp" for the purpose but getting segmentation > fault.I am not able to determine the problem.Can anyone please decrypt > these error messages or suggest what might be the possible cause of > failure? I'd be happy to fix this, but I need

Trevor Harmon wrote: > Hi, > > I've written a FunctionPass that happens to be read-only (preserving): > It doesn't modify the code in any way; it just does some analysis and > dumps out the results for each function by overriding > FunctionPass::print. I now need to make some changes to the pass, and > these changes will mean that the results cannot be known until all

John Criswell wrote: > 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) { >> >>

Hi, I am following the instructions on Writing an LLVM Pass on Darwin(8.7.0) powerpc. The loadable library is built. But "opt -load " gives error saying "Symbol not found". I am using LLVM 1.8. Could someone tell me how to fix it? I have tried the same procedure on Pentium4 Redhat9. Everything is ok there. So I think there must be some specific problem on Darwin that I should

I think this assertion failure may be caused by the getAnalysisUsage(). Mine is like the following: class myclass : public ModulePass{ ... virtual void getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<LoopInfo>(); } ... } Is it enough? Thanks! Best, --Wenbin ----- Original Message ----- From: Wenbin Zhang To: John Criswell Cc: llvmdev at

Hi All, I know ,I'm bugging around people here :-) ...As said i'm very new too LLVM and try to understand its framework to contribute to same by using my experience.. Here i was trying to understand the analysis and transformation phase in steps using opt utility and i'm stalled here. i.e run the utility on sample by --basicaa switch and output was $ opt -f -S -basicaa -gvn

Thanks John, I modify my code to like this: bool XXX::ModulePass(Module &M){ .... LoopInfo &li = getAnalysis<LoopInfo>(fi); .... } Here fi is a Function* pointing to main(). Now when I run the pass, another error shows up: AnalysisType& llvm::Pass::getAnalysisID(const llvm::PassInfo*, llvm::Function&) [with AnalysisType = llvm::LoopInfo]: Assertion `ResultPass

On 3/3/11 3:09 PM, Wenbin Zhang wrote: > Hi all, > I tried to have a LoopInfo object in a function pass, add > addRequired<LoopInfo> in getAnalysisUsage, and then use > getAnalysis<LoopInfo> in runOnFunction(). It worked OK. > Now I want to have a module pass to traverse the functions, and > similarly I want to have to loop information of the functions. When I >

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>(); > ...... >

I am currectly experimenting with -Xclang option.. I have a simple pass (to just print function names). I ran: clang -Xclang -load -Xclang LLVMHello.so t.c but nothing was printed, no output from the pass. when I run: opt -load LLVMHello.so -hello t.ll I get the output from pass (i.e. list of function names) Part of the source ode of the Hello pass: struct Hello : public FunctionPass {

Hi, Devang. Thank you for your reply. But in my case, my ModulePass requires another FunctionPass (e.g. MemoryDependenceAnalysis) rather than the opposite direction. Is it also limited? - gauss Devang Patel-2 wrote: > > On Mon, Aug 10, 2009 at 3:35 AM, gauss<gausszhch at gmail.com> wrote: >> Hi, all: >> >> I wanted to use a FunctionPass (e.g.

On Wed, 21 Feb 2007, Ryan M. Lefever wrote: > I am writing an interprocedural compiler pass. Because the passneeds > information from a FunctionPass, e.g., the post-dominance frontier > (PDF), and because a ModulePass is not permitted to require a > FunctionPass, I am forced to make my pass a FunctionPass and do majority > of its work in the doFinalization() method. ok > When

I am writing an interprocedural compiler pass. Because the passneeds information from a FunctionPass, e.g., the post-dominance frontier (PDF), and because a ModulePass is not permitted to require a FunctionPass, I am forced to make my pass a FunctionPass and do majority of its work in the doFinalization() method. When I run "opt -mypass -verify -o code2.bc code1.bc" I get no

Hi, all: I wanted to use a FunctionPass (e.g. *MemoryDependenceAnalysis*) in a ModulePass, and then I used the method "getAnalysis<* MemoryDependenceAnalysis*>(llvm::Function *)" described at http://llvm.org/docs/WritingAnLLVMPass.html#ModulePass to get the FunctionPass. But , it still crashed when I invoked this pass in tool 'opt'. However, if I change my pass to

On Mon, Aug 10, 2009 at 3:35 AM, gauss<gausszhch at gmail.com> wrote: > Hi, all: > > I wanted to use a FunctionPass (e.g. MemoryDependenceAnalysis) in a > ModulePass, and then I used the method > "getAnalysis<MemoryDependenceAnalysis>(llvm::Function *)"  described at > http://llvm.org/docs/WritingAnLLVMPass.html#ModulePass to get the > FunctionPass. But ,

I have a ModulePass, which we'll call MP, that generates a dependency graph for an entire program. I want MP to require the UnifyFunctionExitNodes pass, which is a FunctionPass. Since its not possible to make a ModulePass depend on a FunctionPass, is my only choice to make MP a FunctionPass in which the runOnFunction() routine does nothing, and the doFinalization routine does all the