it modifies a functions attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55831
91177308-0d34-0410-b5e6-
96231b3b80d8
NewAttributes |= ParamAttr::NoReturn;
const PAListPtr &PAL = SCC[i]->getFunction()->getParamAttrs();
- SCC[i]->getFunction()->setParamAttrs(PAL.addAttr(0, NewAttributes));
+ const PAListPtr &NPAL = PAL.addAttr(0, NewAttributes);
+ if (PAL != NPAL) {
+ MadeChange = true;
+ SCC[i]->getFunction()->setParamAttrs(NPAL);
+ }
}
for (unsigned i = 0, e = SCC.size(); i != e; ++i) {