[llvm] [AMDGPU] Increase inline threshold when the callee only has one live use (PR #111311)

[Matt Arsenault via llvm-commits]

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@@ -1307,6 +1311,12 @@ unsigned GCNTTIImpl::adjustInliningThreshold(const CallBase *CB) const {
   unsigned AllocaSize = getCallArgsTotalAllocaSize(CB, DL);
   if (AllocaSize > 0)
     Threshold += ArgAllocaCost;
+
+  // Increase the threshold if it is the only call to a local function.
+  Function *Callee = CB->getCalledFunction();
+  if (Callee->hasLocalLinkage() && Callee->hasOneLiveUse())
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arsenm wrote:

Guard against null callee 

https://github.com/llvm/llvm-project/pull/111311