[llvm] [profcheck][coro] Adding Branch weights PGO in Coroutines Passes (PR #184466)

[Chuanqi Xu via llvm-commits]

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@@ -182,6 +182,8 @@ void Lowerer::lowerCoroNoop(IntrinsicInst *II) {
         M.getDataLayout().getProgramAddressSpace(), "__NoopCoro_ResumeDestroy",
         &M);
     NoopFn->setCallingConv(CallingConv::Fast);
+    // Because this function is a noop, we can set its entry count to 0.
+    NoopFn->setEntryCount(0);
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ChuanqiXu9 wrote:

Why? A function is a noop doesn't mean it won't be called?

https://github.com/llvm/llvm-project/pull/184466