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Diffstat (limited to 'unittests/IR/WaymarkTest.cpp')
-rw-r--r-- | unittests/IR/WaymarkTest.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/unittests/IR/WaymarkTest.cpp b/unittests/IR/WaymarkTest.cpp new file mode 100644 index 0000000000..69fc4da5a6 --- /dev/null +++ b/unittests/IR/WaymarkTest.cpp @@ -0,0 +1,54 @@ +//===- llvm/unittest/IR/WaymarkTest.cpp - getUser() unit tests ------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// we perform white-box tests +// +#include "llvm/IR/Function.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/LLVMContext.h" +#include "gtest/gtest.h" +#include <algorithm> + +namespace llvm { +namespace { + +Constant *char2constant(char c) { + return ConstantInt::get(Type::getInt8Ty(getGlobalContext()), c); +} + + +TEST(WaymarkTest, NativeArray) { + static uint8_t tail[22] = "s02s33s30y2y0s1x0syxS"; + Value * values[22]; + std::transform(tail, tail + 22, values, char2constant); + FunctionType *FT = FunctionType::get(Type::getVoidTy(getGlobalContext()), true); + Function *F = Function::Create(FT, GlobalValue::ExternalLinkage); + const CallInst *A = CallInst::Create(F, makeArrayRef(values)); + ASSERT_NE(A, (const CallInst*)NULL); + ASSERT_EQ(1U + 22, A->getNumOperands()); + const Use *U = &A->getOperandUse(0); + const Use *Ue = &A->getOperandUse(22); + for (; U != Ue; ++U) + { + EXPECT_EQ(A, U->getUser()); + } +} + +TEST(WaymarkTest, TwoBit) { + Use* many = (Use*)calloc(sizeof(Use), 8212 + 1); + ASSERT_TRUE(many); + Use::initTags(many, many + 8212); + for (const Use *U = many, *Ue = many + 8212 - 1; U != Ue; ++U) + { + EXPECT_EQ((User*)(Ue + 1), U->getUser()); + } +} + +} // end anonymous namespace +} // end namespace llvm |