fix PR8867: a crash handling fp128. Thanks to Nick for the testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122613 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 9 insertions, 0 deletions

diff --git a/unittests/VMCore/ConstantsTest.cpp b/unittests/VMCore/ConstantsTest.cpp
index 8f28407b8d..8277584ba2 100644
--- a/unittests/VMCore/ConstantsTest.cpp
+++ b/unittests/VMCore/ConstantsTest.cpp
@@ -109,5 +109,14 @@ TEST(ConstantsTest, IntSigns) {
   EXPECT_EQ(0x3b, ConstantInt::get(Int8Ty, 0x13b)->getSExtValue());
 }
 
+TEST(ConstantsTest, FP128Test) {
+  const Type *FP128Ty = Type::getFP128Ty(getGlobalContext());
+
+  const IntegerType *Int128Ty = Type::getIntNTy(getGlobalContext(), 128);
+  Constant *Zero128 = Constant::getNullValue(Int128Ty);
+  Constant *X = ConstantExpr::getUIToFP(Zero128, FP128Ty);
+  EXPECT_TRUE(isa<ConstantFP>(X));
+}
+
 }  // end anonymous namespace
 }  // end namespace llvm