[llvm] [OPT] Search whole BB for convergence token. (PR #112728)

[Steven Perron via llvm-commits]

================
@@ -180,6 +180,19 @@ namespace {
     }
   };
 
+  IntrinsicInst *getConevrgenceEntryIfAny(BasicBlock &BB) {
+    auto *I = BB.getFirstNonPHI();
+    while (I) {
+      if (auto *IntrinsicCall = dyn_cast<IntrinsicInst>(I)) {
----------------
s-perron wrote:

I did not know about that.

https://github.com/llvm/llvm-project/pull/112728