[llvm-branch-commits] [llvm] [ctx_prof] Add support for ICP (PR #105469)

[Snehasish Kumar via llvm-branch-commits]

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@@ -572,6 +575,89 @@ CallBase &llvm::promoteCallWithIfThenElse(CallBase &CB, Function *Callee,
   return promoteCall(NewInst, Callee);
 }
 
+CallBase *llvm::promoteCallWithIfThenElse(CallBase &CB, Function &Callee,
+                                          PGOContextualProfile &CtxProf) {
+  assert(CB.isIndirectCall());
+  if (!CtxProf.isFunctionKnown(Callee))
+    return nullptr;
+  auto &Caller = *CB.getParent()->getParent();
+  auto *CSInstr = CtxProfAnalysis::getCallsiteInstrumentation(CB);
+  if (!CSInstr)
+    return nullptr;
+  const auto CSIndex = CSInstr->getIndex()->getZExtValue();
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snehasish wrote:

Spell out the type here to make easier for the reader.

https://github.com/llvm/llvm-project/pull/105469