1//===- llvm/unittest/IR/WaymarkTest.cpp - getUser() unit tests ------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// we perform white-box tests 11// 12#include "llvm/IR/Function.h" 13#include "llvm/IR/Instructions.h" 14#include "llvm/IR/LLVMContext.h" 15#include "gtest/gtest.h" 16#include <algorithm> 17 18namespace llvm { 19namespace { 20 21Constant *char2constant(char c) { 22 return ConstantInt::get(Type::getInt8Ty(getGlobalContext()), c); 23} 24 25 26TEST(WaymarkTest, NativeArray) { 27 static uint8_t tail[22] = "s02s33s30y2y0s1x0syxS"; 28 Value * values[22]; 29 std::transform(tail, tail + 22, values, char2constant); 30 FunctionType *FT = FunctionType::get(Type::getVoidTy(getGlobalContext()), true); 31 Function *F = Function::Create(FT, GlobalValue::ExternalLinkage); 32 const CallInst *A = CallInst::Create(F, makeArrayRef(values)); 33 ASSERT_NE(A, (const CallInst*)NULL); 34 ASSERT_EQ(1U + 22, A->getNumOperands()); 35 const Use *U = &A->getOperandUse(0); 36 const Use *Ue = &A->getOperandUse(22); 37 for (; U != Ue; ++U) 38 { 39 EXPECT_EQ(A, U->getUser()); 40 } 41 delete A; 42} 43 44TEST(WaymarkTest, TwoBit) { 45 Use* many = (Use*)calloc(sizeof(Use), 8212 + 1); 46 ASSERT_TRUE(many); 47 Use::initTags(many, many + 8212); 48 for (Use *U = many, *Ue = many + 8212 - 1; U != Ue; ++U) 49 { 50 EXPECT_EQ(reinterpret_cast<User *>(Ue + 1), U->getUser()); 51 } 52 free(many); 53} 54 55} // end anonymous namespace 56} // end namespace llvm 57