diff options
Diffstat (limited to 'llvm/unittests/IR/ConstantsTest.cpp')
| -rw-r--r-- | llvm/unittests/IR/ConstantsTest.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/llvm/unittests/IR/ConstantsTest.cpp b/llvm/unittests/IR/ConstantsTest.cpp index 0cd85499828..52f098e969e 100644 --- a/llvm/unittests/IR/ConstantsTest.cpp +++ b/llvm/unittests/IR/ConstantsTest.cpp @@ -274,5 +274,30 @@ TEST(ConstantsTest, ReplaceWithConstantTest) { #undef CHECK +TEST(ConstantsTest, ConstantArrayReplaceWithConstant) { + LLVMContext Context; + std::unique_ptr<Module> M(new Module("MyModule", Context)); + + Type *IntTy = Type::getInt8Ty(Context); + ArrayType *ArrayTy = ArrayType::get(IntTy, 2); + Constant *A01Vals[2] = {ConstantInt::get(IntTy, 0), + ConstantInt::get(IntTy, 1)}; + Constant *A01 = ConstantArray::get(ArrayTy, A01Vals); + + Constant *Global = new GlobalVariable(*M, IntTy, false, + GlobalValue::ExternalLinkage, nullptr); + Constant *GlobalInt = ConstantExpr::getPtrToInt(Global, IntTy); + Constant *A0GVals[2] = {ConstantInt::get(IntTy, 0), GlobalInt}; + Constant *A0G = ConstantArray::get(ArrayTy, A0GVals); + ASSERT_NE(A01, A0G); + + GlobalVariable *RefArray = + new GlobalVariable(*M, ArrayTy, false, GlobalValue::ExternalLinkage, A0G); + ASSERT_EQ(A0G, RefArray->getInitializer()); + + GlobalInt->replaceAllUsesWith(ConstantInt::get(IntTy, 1)); + ASSERT_EQ(A01, RefArray->getInitializer()); +} + } // end anonymous namespace } // end namespace llvm |
