X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=unittests%2FIR%2FConstantsTest.cpp;h=7471584097ddaa351571836e1d001e879c6ae849;hb=d0dc794073ee74622a4af86e5553d7926e4b8aec;hp=0bf98f35b3c8148150635e776bc8793d0d3ced5d;hpb=4381284cf88991a0971886daa914225539c570e5;p=oota-llvm.git

diff --git a/unittests/IR/ConstantsTest.cpp b/unittests/IR/ConstantsTest.cpp
index 0bf98f35b3c..7471584097d 100644
--- a/unittests/IR/ConstantsTest.cpp
+++ b/unittests/IR/ConstantsTest.cpp
@@ -15,6 +15,7 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/Support/SourceMgr.h"
+#include "llvm-c/Core.h"
 #include "gtest/gtest.h"
 
 namespace llvm {
@@ -433,5 +434,22 @@ TEST(ConstantsTest, BuildConstantDataVectors) {
   }
 }
 
+TEST(ConstantsTest, BitcastToGEP) {
+  LLVMContext Context;
+  std::unique_ptr<Module> M(new Module("MyModule", Context));
+
+  auto *i32 = Type::getInt32Ty(Context);
+  auto *U = StructType::create(Context, "Unsized");
+  Type *EltTys[] = {i32, U};
+  auto *S = StructType::create(EltTys);
+
+  auto *G = new GlobalVariable(*M, S, false,
+                               GlobalValue::ExternalLinkage, nullptr);
+  auto *PtrTy = PointerType::get(i32, 0);
+  auto *C = ConstantExpr::getBitCast(G, PtrTy);
+  ASSERT_EQ(dyn_cast<ConstantExpr>(C)->getOpcode(),
+            Instruction::BitCast);
+}
+
 }  // end anonymous namespace
 }  // end namespace llvm