void RuntimeDebugBuilder::createStrPrinter(PollyIRBuilder &Builder,
const std::string &String) {
Value *StringValue = Builder.CreateGlobalStringPtr(String);
Builder.CreateCall(getPrintF(Builder), StringValue);
createFlush(Builder);
}
void RuntimeDebugBuilder::createFlush(PollyIRBuilder &Builder) {
Module *M = Builder.GetInsertBlock()->getParent()->getParent();
const char *Name = "fflush";
Function *F = M->getFunction(Name);
if (!F) {
GlobalValue::LinkageTypes Linkage = Function::ExternalLinkage;
FunctionType *Ty =
FunctionType::get(Builder.getInt32Ty(), Builder.getInt8PtrTy(), false);
F = Function::Create(Ty, Linkage, Name, M);
}
// fflush(NULL) flushes _all_ open output streams.
//
// fflush is declared as 'int fflush(FILE *stream)'. As we only pass on a NULL
// pointer, the type we point to does conceptually not matter. However, if
// fflush is already declared in this translation unit, we use the very same
// type to ensure that LLVM does not complain about mismatching types.
Builder.CreateCall(F, Constant::getNullValue(F->arg_begin()->getType()));
}
