From 2a3ac7fd0c9e25ecad272243dabc155e348f2910 Mon Sep 17 00:00:00 2001
From: Max Kazantsev <mkazantsev@azul.com>
Date: Mon, 21 Nov 2022 19:18:53 +0700
Subject: [PATCH] [NFC][IndVars] Add LLVM_DEBUG printout to replaceExitCond

---
 llvm/lib/Transforms/Scalar/IndVarSimplify.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
index fdc1232..d9172b2 100644
--- a/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
+++ b/llvm/lib/Transforms/Scalar/IndVarSimplify.cpp
@@ -1292,6 +1292,8 @@ bool IndVarSimplify::sinkUnusedInvariants(Loop *L) {
 static void replaceExitCond(BranchInst *BI, Value *NewCond,
                             SmallVectorImpl<WeakTrackingVH> &DeadInsts) {
   auto *OldCond = BI->getCondition();
+  LLVM_DEBUG(dbgs() << "Replacing condition of loop-exiting branch " << *BI
+                    << " with " << *NewCond << "\n");
   BI->setCondition(NewCond);
   if (OldCond->use_empty())
     DeadInsts.emplace_back(OldCond);
-- 
2.7.4