[llvm-branch-commits] [llvm] [LLVM][Coroutines] Create `.noalloc` variant of switch ABI coroutine ramp functions during CoroSplit (PR #99283)

[Adrian Vogelsgesang via llvm-branch-commits]

================
@@ -1455,6 +1462,64 @@ struct SwitchCoroutineSplitter {
     setCoroInfo(F, Shape, Clones);
   }
 
+  static Function *createNoAllocVariant(Function &F, coro::Shape &Shape,
+                                        SmallVectorImpl<Function *> &Clones) {
+    auto *OrigFnTy = F.getFunctionType();
+    auto OldParams = OrigFnTy->params();
+
+    SmallVector<Type *> NewParams;
+    NewParams.reserve(OldParams.size() + 1);
+    for (Type *T : OldParams) {
+      NewParams.push_back(T);
+    }
----------------
vogelsgesang wrote:

Can this be simplified as
```suggestion
    NewParams.append(OldParams->begin(), OldParams->end());
```

?

https://github.com/llvm/llvm-project/pull/99283