[llvm] [WPD]: Enable speculative devirtualizatoin. (PR #159048)

[Teresa Johnson via llvm-commits]

================
@@ -2350,6 +2392,11 @@ bool DevirtModule::run() {
 
   Function *TypeTestFunc =
       Intrinsic::getDeclarationIfExists(&M, Intrinsic::type_test);
+  // If we are in speculative devirtualization mode, we can work on the public
+  // type test intrinsics.
+  if (!TypeTestFunc && DevirtSpeculatively)
+    TypeTestFunc =
+        Intrinsic::getDeclarationIfExists(&M, Intrinsic::public_type_test);
----------------
teresajohnson wrote:

Can you add a test with public type tests?

https://github.com/llvm/llvm-project/pull/159048