Displaying 2 results from an estimated 2 matches for "instructionvisitor".
2020 Jun 03
2
Fwd: I cannot change value of global variable in LLVM IR using IRBuilder
I don't think it's the same problem as you described. By printing I meant
calling printf function and passing my global variable as one of the
arguments.
My code:
Instruction* InstructionVisitor::incrementGlobalKey(Instruction* I) {
IRBuilder<> Builder(I->getContext());
Builder.SetInsertPoint(I->getNextNode());
GlobalVariable* key = I->getModule()->getNamedGlobal("globalKey");
if (key) {
LoadInst* load = Builder.CreateLoad(key);
Value* inc = Builder.CreateAdd(...
2020 Jun 03
2
Fwd: I cannot change value of global variable in LLVM IR using IRBuilder
...));
GlobalVariable* gVar = M.getNamedGlobal("globalKey");
gVar->setLinkage(GlobalValue::InternalLinkage);
gVar->setAlignment(Align(8));
gVar->setInitializer(Builder.getInt64(0));
gVar->setConstant(false);
for (Function &F : M.functions()) {
InstructionVisitor visitor(DL,
getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(F));
for (Instruction &I : instructions(F)) {
visitor.visit(I);
}
}
return true;}
Later in InstructionVisitor I try to update it like that:
IRBuilder<> Builder(I->getContext());Bu...