[libc-commits] [libc] [OpenMPIRBuilder] Remove wrapper function in `createTask`, `createTeams` (PR #67723)

Johannes Doerfert via libc-commits libc-commits at lists.llvm.org
Tue Oct 24 12:49:28 PDT 2023


================
@@ -1736,26 +1750,20 @@ OpenMPIRBuilder::createTask(const LocationDescription &Loc,
 
     StaleCI->eraseFromParent();
 
-    // Emit the body for wrapper function
-    BasicBlock *WrapperEntryBB =
-        BasicBlock::Create(M.getContext(), "", WrapperFunc);
-    Builder.SetInsertPoint(WrapperEntryBB);
+    Builder.SetInsertPoint(TaskAllocaBB, TaskAllocaBB->begin());
     if (HasShareds) {
-      llvm::Value *Shareds =
-          Builder.CreateLoad(VoidPtr, WrapperFunc->getArg(1));
-      Builder.CreateCall(&OutlinedFn, {Shareds});
-    } else {
-      Builder.CreateCall(&OutlinedFn);
+      LoadInst *Shareds = Builder.CreateLoad(VoidPtr, OutlinedFn.getArg(1));
+      OutlinedFn.getArg(1)->replaceUsesWithIf(
+          Shareds, [Shareds](Use &U) { return U.getUser() != Shareds; });
+    }
+
+    while (!ToBeDeleted.empty()) {
+      ToBeDeleted.top()->eraseFromParent();
+      ToBeDeleted.pop();
----------------
jdoerfert wrote:

There is no need to pop anything, we have this code in other places already, why do we need to come up with new and exciting ways to do the same thing?

```
for (auto *TBD : ToBeDeleted)
  TBD->eraseFromParent
```

https://github.com/llvm/llvm-project/pull/67723


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