search for: global_begin

...classes that look like STL ones should use similar names for the methods (begin(), push_back(), etc...). But different parts of llvm have different opinions on how to handle the related case of classes that are not STL like, but have multiple collections that can be iterated over. * llvm/IR uses global_begin, alias_begin, etc. I.E., singular name + _begin(). * llvm/Object uses begin_symbols, begin_sections, etc. I.E, begin_ + plural name. * others (YAML, LoopIterator) use beginSequence, beginFlowSequence, etc. I would like to propose adding the the format used by llvm/IR to the coding standard since i...

Hi everyone, I am writing a pass that finds all uses of global variables (my goal is to find the uses of strings, and strings are defined as global variables). So, I can iterate over global vars by for(Module::global_iterator gi = M.global_begin(), gend = M.global_end(); gi != gend; ++gi) ...... But if I use its def-use chain for(Value::use_iterator i = gi->use_begin(), e = F->use_end; i!=e; ++i) it is not actually able to find its uses, as it gives <null> instructions! I have even tried to iterate over instructions in the modu...

...should use similar names for the methods (begin(), > push_back(), etc...). > > But different parts of llvm have different opinions on how to handle > the related case of classes that are not STL like, but have multiple > collections that can be iterated over. > > * llvm/IR uses global_begin, alias_begin, etc. I.E., singular name + > _begin(). > * llvm/Object uses begin_symbols, begin_sections, etc. I.E, begin_ + > plural name. > * others (YAML, LoopIterator) use beginSequence, beginFlowSequence, etc. > > I would like to propose adding the the format used by llvm/IR t...

For LLDB I'm writing a dumb module pass that removes all global variables, by running the following code: bool erased = true; while (erased) { erased = false; for (Module::global_iterator gi = llvm_module.global_begin(), ge = llvm_module.global_end(); gi != ge; ++gi) { GlobalVariable *global_var = dyn_cast<GlobalVariable>(gi); if (global_var->use_empty()) { log->Printf("Did remove %s",...

...bitcode files, using code in LLVM trunk, my only choice at the moment is to... 1. Collect a set of undefined symbols from the destination module. 2. Load **all** the `llvm::Module`s in the archive into memory 3. Iterate over each module's GlobalValues (does the list starting with llvm::Module::global_begin() include the module's functions too??) and if a GlobalValue in a module is not a declaration and is in the set of undefined symbols then link that module into the destination module using Linker::LinkModules() 4. Update the set of undefined symbols 5. repeat 1 and 2 until a fixed point (the se...

Hi, all I try to get the Instructions where one function use the global variable. for (llvm::Module::global_iterator gvar_iter = M.global_begin(); gvar_iter != M.global_end(); gvar_iter++) { llvm::GlobalVariable *gvar = &*gvar_iter; llvm::errs() << "const global var: " << gvar->getName() << "\n"; for ( llvm::GlobalVariable::use_iterator iter = gvar->use_begin(); i...

Hi all, First post to the list, I hope you can help or guide me on this task. I am involved in a project that requires to re-link extracted and edited IR code Thus I want to know if these tools can be used in this way? clang++-4.0 code03.cpp -emit-llvm -S -o code03.ll llvm-extract-4.0 code03.ll -func main -S -o extracted_main.ll llvm-link-4.0 code03.ll -only-needed -override extracted_main.ll

...obal variables and the final IR is intended to be compiled. A snippet of what I do looks like this: class TestClass : public llvm::ModulePass { public: TestClass() : llvm::ModulePass(TestClass::ID) { } virtual bool runOnModule(llvm::Module &m) { for (llvm::Module::global_iterator ii = m.global_begin(); ii != m.global_end(); ++ii) { GlobalVariable* gv = ii; // here you can modify the gv variable (actually I am creating new globals and deleting the old ones) for (llvm::Value::use_iterator jj = gv->use_begin(); jj != gv->use_end(); ++jj) { // jj is a reference fo...

...f = global i32 0, align 4 ) and also I need to get "DS" from @.str. In my target code I have : __attribute__((annotate("DS"))) int f=0; I have problems to parse @llvm.global.annotations and I assume I will have with @.str. What I tried: 1. for (Module::global_iterator I = F.global_begin(), E = F.global_end(); I != E; ++I) { if (I->getName() == "llvm.global.annotations") { Value *V = cast<Value>(I->getOperand(0)); errs()<<"\n "<<*(V)<<"\n"; errs()<<"\n "<<*(V->getType())&...

...ould use similar names for the methods (begin(), > push_back(), etc...). > > But different parts of llvm have different opinions on how to handle > the related case of classes that are not STL like, but have multiple > collections that can be iterated over. > > * llvm/IR uses global_begin, alias_begin, etc. I.E., singular name + _begin(). > * llvm/Object uses begin_symbols, begin_sections, etc. I.E, begin_ + > plural name. > * others (YAML, LoopIterator) use beginSequence, beginFlowSequence, etc. > > I would like to propose adding the the format used by llvm/IR to th...

Hi everybody, I am writing an LLVM pass and I want to iterate over the whole module (including global variables), that's why I use ModulePass instead of FunctionPass. But I don't know how to do it. Using Module::iterator seams to iterate only over functions. But I need to iterate over all the Instructions in the module. How should I do such an iteration? Also, I would like to find all the

hi Eduardo, thanks for your attention, i checked the iterator, but i didn't see any fucntion can return or modify the main memory address of a global variable inside the module. can you provide some reference code or program can achieve this? thank you very much -- View this message in context:

...al Globals", false, false) + +ModulePass *llvm::createElimAvailExternPass() { return new ElimAvailExtern(); } + +bool ElimAvailExtern::runOnModule(Module &M) { + bool Changed = false; + + // Drop initializers of available externally global variables. + for (Module::global_iterator I = M.global_begin(), E = M.global_end(); + I != E; ++I) { + if (!I->hasAvailableExternallyLinkage()) + continue; + if (I->hasInitializer()) { + Constant *Init = I->getInitializer(); + I->setInitializer(nullptr); + if (isSafeToDestroyConstant(Init)) + Init->destro...

...mespace llvm; namespace { class StructModulePass: public ModulePass { public: static char ID; StructModulePass() : ModulePass(ID) {} virtual bool runOnModule(Module &M1) override { // iterate over global structures M = &M1; int i; for(auto G = M->global_begin(); G!= M->global_end() ; G++, i++){ errs() << i << " == > " ; errs().write_escaped(G->getName()) << "\n"; } // iterate through each instruction. module->function->BB->Inst for(auto &F_ : M->functions()){ F = &F_;...

...size, so I'd mention that instead. Ok, right in your case that is the benefit. Will update the comment. > > + MPM.add(createElimAvailExternPass()); > + } > > + // Drop initializers of available externally global variables. > + for (Module::global_iterator I = M.global_begin(), E = M.global_end(); > + I != E; ++I) { > + if (!I->hasAvailableExternallyLinkage()) > + continue; > + if (I->hasInitializer()) { > + Constant *Init = I->getInitializer(); > + I->setInitializer(nullptr); > + if (isSafeToDestroyConst...

Hello, I have a couple of doubts, as listed below: 1. To list all the global variables in the module, I am iterating using type_iterator and for each Type I get, I am using value_iterator to iterate over Values . In the second iteration I am getting unexpected results. For each type obtained from type_iterator->second, value_iterator->first produces the same list as what

...would also love to use standard types like std::unique_ptr, move semantics, etc without worrying about conditional code or reinventing them in the llvm ADT library. I also have a personal love affair for range-based for loops, and I expect a number of awesome new adaptors to paper over the Module::global_begin() sorts of ranges. It would also be great to get something like python's enumerate function etc. In short, you don't have to convince me about the benefits of dropping old compilers! :-) At root, my conservatism comes from not wanting to hurt adoption of LLVM. The hosts that I specifica...

On Thu, Jun 4, 2015 at 3:58 PM, Duncan P. N. Exon Smith < dexonsmith at apple.com> wrote: > > > Personally, I think the right approach is to add a bool to > createGlobalDCEPass defaulting to true named something like > IsAfterInlining. In most standard pass pipelines, GlobalDCE runs after > inlining for obvious reasons, so the default makes sense. The special case > is

On Sun, Oct 27, 2013 at 11:18 AM, Chris Lattner <clattner at apple.com> wrote: > On Sun, Oct 27, 2013 at 2:23 AM, Chandler Carruth <chandlerc at google.com> > wrote:> Concrete long term proposal: > > > > We support building with C++ toolchains which were released and widely > available on their respective target platforms at least 2 years prior to > the next

On Thu, Jun 4, 2015 at 5:33 PM, Reid Kleckner <rnk at google.com> wrote: > On Thu, Jun 4, 2015 at 5:17 PM, Teresa Johnson <tejohnson at google.com> wrote: >> >> Agreed. Although I assume you mean invoke the new pass under a >> ThinLTO-only option so that avail extern are not dropped in the >> compile pass before the LTO link? > > > No, this pass