vendor/llvm/llvm-r126547

1 files changed, 11 insertions, 0 deletions

diff --git a/unittests/Transforms/Utils/Local.cpp b/unittests/Transforms/Utils/Local.cpp
index e969e958a742..e0322b37d332 100644
--- a/unittests/Transforms/Utils/Local.cpp
+++ b/unittests/Transforms/Utils/Local.cpp
@@ -42,6 +42,17 @@ TEST(Local, RecursivelyDeleteDeadPHINodes) {
   EXPECT_EQ(&bb0->front(), br0);
   EXPECT_EQ(&bb1->front(), br1);
 
+  builder.SetInsertPoint(bb0);
+  phi = builder.CreatePHI(Type::getInt32Ty(C));
+
+  EXPECT_TRUE(RecursivelyDeleteDeadPHINode(phi));
+
+  builder.SetInsertPoint(bb0);
+  phi = builder.CreatePHI(Type::getInt32Ty(C));
+  builder.CreateAdd(phi, phi);
+
+  EXPECT_TRUE(RecursivelyDeleteDeadPHINode(phi));
+
   bb0->dropAllReferences();
   bb1->dropAllReferences();
   delete bb0;