[Mlir-commits] [mlir] [mlir][inliner] optimize self-recursive function detection [NFC] (PR #88452)

[Mehdi Amini]

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@@ -621,6 +623,12 @@ Inliner::Impl::inlineCallsInSCC(InlinerInterfaceImpl &inlinerIface,
     llvm::dbgs() << "}\n";
   });
 
+  llvm::SmallPtrSet<Region *, 16U> recursiveCallRegions{};
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joker-eph wrote:

Why did you specify 16 here instead of using the default?

Also can you please add a comment here detailing the role of this new set in the process?

https://github.com/llvm/llvm-project/pull/88452