From 7c7aba6e5fef47a01a136be655b0a92cfd7090f6 Mon Sep 17 00:00:00 2001
From: Dimitry Andric <dim@FreeBSD.org>
Date: Fri, 16 Jun 2017 21:03:24 +0000
Subject: Vendor import of llvm trunk r305575:
 https://llvm.org/svn/llvm-project/llvm/trunk@305575

---
 lib/Transforms/Utils/PredicateInfo.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/Transforms/Utils/PredicateInfo.cpp')

diff --git a/lib/Transforms/Utils/PredicateInfo.cpp b/lib/Transforms/Utils/PredicateInfo.cpp
index 9e71cba4f1b7..1260e35e934d 100644
--- a/lib/Transforms/Utils/PredicateInfo.cpp
+++ b/lib/Transforms/Utils/PredicateInfo.cpp
@@ -460,6 +460,9 @@ void PredicateInfo::buildPredicateInfo() {
     if (auto *BI = dyn_cast<BranchInst>(BranchBB->getTerminator())) {
       if (!BI->isConditional())
         continue;
+      // Can't insert conditional information if they all go to the same place.
+      if (BI->getSuccessor(0) == BI->getSuccessor(1))
+        continue;
       processBranch(BI, BranchBB, OpsToRename);
     } else if (auto *SI = dyn_cast<SwitchInst>(BranchBB->getTerminator())) {
       processSwitch(SI, BranchBB, OpsToRename);
-- 
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