[PATCH] fix issue #1435

Gbp-Pq: Name 0004-fix-issue-1435.patch

diff --git a/lib/llvmopencl/IsolateRegions.cc b/lib/llvmopencl/IsolateRegions.cc
index c2b9413ce413daae507b20944e835fef059836a7..1b46e7373af29e2e749a59ac2da7cb72741a6b2a 100644 (file)
--- a/lib/llvmopencl/IsolateRegions.cc
+++ b/lib/llvmopencl/IsolateRegions.cc
@@ -165,6 +165,8 @@ static void addDummyBefore(llvm::Region &R, llvm::BasicBlock *BB) {
     if (R.contains(Pred))
       RegionPreds.push_back(Pred);
   }
+  if (RegionPreds.empty())
+    return;
   llvm::BasicBlock *NewExit =
       SplitBlockPredecessors(BB, RegionPreds, ".r_exit");
   R.replaceExit(NewExit);