LLVM 3.5
Instruction::use_iterator
for (Instruction::use_iterator ui = instruction->use_begin(),
ue = instruction->use_end();
ui != ue; ++ui) {
#if defined LLVM_3_2 || defined LLVM_3_3 || defined LLVM_3_4
llvm::Instruction *user = cast<Instruction>(*ui);
#else
llvm::Instruction *user = cast<Instruction>(ui->getUser());
#endif
Value *v = pending.back();
for (Value::use_iterator i = v->use_begin(), e = v->use_end(); != e; ++i) {
}
llvm::Function *F = M.getFunction(BARRIER_FUNCTION_NAME);
if (F != NULL) {
for (llvm::Function::use_iterator i = F->use_begin(), e = F->use_end();
i != e; ++i)
B.push_back(llvm::cast<Barrier>(*i));
}