From 09858a3961915ccbcc8eac1b50a4e242f78345b9 Mon Sep 17 00:00:00 2001
From: David Majnemer <david.majnemer@gmail.com>
Date: Sat, 23 Jan 2016 05:41:27 +0000
Subject: [PATCH] [PruneEH] Unify invoke and call handling in DeleteBasicBlock

No functionality change is intended.

llvm-svn: 258610
---
 lib/Transforms/IPO/PruneEH.cpp | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/Transforms/IPO/PruneEH.cpp b/lib/Transforms/IPO/PruneEH.cpp
index 8e126d4de4f..da3bf234d21 100644
--- a/lib/Transforms/IPO/PruneEH.cpp
+++ b/lib/Transforms/IPO/PruneEH.cpp
@@ -231,11 +231,15 @@ void PruneEH::DeleteBasicBlock(BasicBlock *BB) {
   CallGraphNode *CGN = CG[BB->getParent()];
   for (BasicBlock::iterator I = BB->end(), E = BB->begin(); I != E; ) {
     --I;
-    if (CallInst *CI = dyn_cast<CallInst>(I)) {
-      if (!isa<IntrinsicInst>(I))
-        CGN->removeCallEdgeFor(CI);
-    } else if (InvokeInst *II = dyn_cast<InvokeInst>(I))
-      CGN->removeCallEdgeFor(II);
+
+    if (auto CS = CallSite (&*I)) {
+      const Function *Callee = CS.getCalledFunction();
+      if (!Callee || !Intrinsic::isLeaf(Callee->getIntrinsicID()))
+        CGN->removeCallEdgeFor(CS);
+      else if (!Callee->isIntrinsic())
+        CGN->removeCallEdgeFor(CS);
+    }
+
     if (!I->use_empty())
       I->replaceAllUsesWith(UndefValue::get(I->getType()));
   }