Function FindEntryPoint

source/link/fnvar.cpp:117–127

Finds entry point corresponding to a function Returns null if not found, otherwise returns pointer to the EP Instruction.

//
// Returns null if not found, otherwise returns pointer to the EP Instruction.
Instruction* FindEntryPoint(const Instruction& fn_inst) {
  auto* mod = fn_inst.context()->module();
  for (auto& entry_point : mod->entry_points()) {
    const int ep_i =
        entry_point.opcode() == spv::Op::OpConditionalEntryPointINTEL ? 2 : 1;
    if (entry_point.GetOperand(ep_i).AsId() == fn_inst.result_id()) {
      return &entry_point;
    }
  }
  return nullptr;
}

// If the function has an entry point, converts it to a conditional one
void ConvertEPToConditional(Module* module, const Function& fn,