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

[Chuanqi Xu via llvm-branch-commits]

================
@@ -1967,22 +2047,13 @@ splitCoroutine(Function &F, SmallVectorImpl<Function *> 
&Clones,
   for (DbgVariableRecord *DVR : DbgVariableRecords)
     coro::salvageDebugInfo(ArgToAllocaMap, *DVR, Shape.OptimizeFrame,
                            false /*UseEntryValue*/);
-  return Shape;
-}
 
-/// Remove calls to llvm.coro.end in the original function.
-static void removeCoroEndsFromRampFunction(const coro::Shape &Shape) {
-  if (Shape.ABI != coro::ABI::Switch) {
-    for (auto *End : Shape.CoroEnds) {
-      replaceCoroEnd(End, Shape, Shape.FramePtr, /*in resume*/ false, nullptr);
-    }
-  } else {
-    for (llvm::AnyCoroEndInst *End : Shape.CoroEnds) {
-      auto &Context = End->getContext();
-      End->replaceAllUsesWith(ConstantInt::getFalse(Context));
-      End->eraseFromParent();
-    }
+  removeCoroEndsFromRampFunction(Shape);
+
+  if (!isNoSuspendCoroutine && Shape.ABI == coro::ABI::Switch) {
----------------
ChuanqiXu9 wrote:

Agreed.

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