//===- llvm/unittest/IR/UserTest.cpp - User unit tests --------------------===//
|
//
|
// The LLVM Compiler Infrastructure
|
//
|
// This file is distributed under the University of Illinois Open Source
|
// License. See LICENSE.TXT for details.
|
//
|
//===----------------------------------------------------------------------===//
|
|
#include "llvm/AsmParser/Parser.h"
|
#include "llvm/IR/Function.h"
|
#include "llvm/IR/Instructions.h"
|
#include "llvm/IR/LLVMContext.h"
|
#include "llvm/IR/Module.h"
|
#include "llvm/IR/User.h"
|
#include "llvm/Support/SourceMgr.h"
|
#include "gtest/gtest.h"
|
using namespace llvm;
|
|
namespace {
|
|
TEST(UserTest, ValueOpIteration) {
|
LLVMContext C;
|
|
const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
|
"entry:\n"
|
" switch i32 undef, label %s0\n"
|
" [ i32 1, label %s1\n"
|
" i32 2, label %s2\n"
|
" i32 3, label %s3\n"
|
" i32 4, label %s4\n"
|
" i32 5, label %s5\n"
|
" i32 6, label %s6\n"
|
" i32 7, label %s7\n"
|
" i32 8, label %s8\n"
|
" i32 9, label %s9 ]\n"
|
"\n"
|
"s0:\n"
|
" br label %exit\n"
|
"s1:\n"
|
" br label %exit\n"
|
"s2:\n"
|
" br label %exit\n"
|
"s3:\n"
|
" br label %exit\n"
|
"s4:\n"
|
" br label %exit\n"
|
"s5:\n"
|
" br label %exit\n"
|
"s6:\n"
|
" br label %exit\n"
|
"s7:\n"
|
" br label %exit\n"
|
"s8:\n"
|
" br label %exit\n"
|
"s9:\n"
|
" br label %exit\n"
|
"\n"
|
"exit:\n"
|
" %phi = phi i32 [ 0, %s0 ], [ 1, %s1 ],\n"
|
" [ 2, %s2 ], [ 3, %s3 ],\n"
|
" [ 4, %s4 ], [ 5, %s5 ],\n"
|
" [ 6, %s6 ], [ 7, %s7 ],\n"
|
" [ 8, %s8 ], [ 9, %s9 ]\n"
|
" ret void\n"
|
"}\n";
|
SMDiagnostic Err;
|
std::unique_ptr<Module> M = parseAssemblyString(ModuleString, Err, C);
|
|
Function *F = M->getFunction("f");
|
BasicBlock &ExitBB = F->back();
|
PHINode &P = cast<PHINode>(ExitBB.front());
|
EXPECT_TRUE(P.value_op_begin() == P.value_op_begin());
|
EXPECT_FALSE(P.value_op_begin() == P.value_op_end());
|
EXPECT_TRUE(P.value_op_begin() != P.value_op_end());
|
EXPECT_FALSE(P.value_op_end() != P.value_op_end());
|
EXPECT_TRUE(P.value_op_begin() < P.value_op_end());
|
EXPECT_FALSE(P.value_op_begin() < P.value_op_begin());
|
EXPECT_TRUE(P.value_op_end() > P.value_op_begin());
|
EXPECT_FALSE(P.value_op_begin() > P.value_op_begin());
|
EXPECT_TRUE(P.value_op_begin() <= P.value_op_begin());
|
EXPECT_FALSE(P.value_op_end() <= P.value_op_begin());
|
EXPECT_TRUE(P.value_op_begin() >= P.value_op_begin());
|
EXPECT_FALSE(P.value_op_begin() >= P.value_op_end());
|
EXPECT_EQ(10, std::distance(P.value_op_begin(), P.value_op_end()));
|
|
User::value_op_iterator I = P.value_op_begin();
|
I += 3;
|
EXPECT_EQ(std::next(P.value_op_begin(), 3), I);
|
EXPECT_EQ(P.getOperand(3), *I);
|
I++;
|
EXPECT_EQ(P.getOperand(6), I[2]);
|
EXPECT_EQ(P.value_op_end(), (I - 2) + 8);
|
}
|
|
TEST(UserTest, PersonalityUser) {
|
LLVMContext Context;
|
Module M("", Context);
|
FunctionType *RetVoidTy = FunctionType::get(Type::getVoidTy(Context), false);
|
Function *PersonalityF = Function::Create(
|
RetVoidTy, GlobalValue::ExternalLinkage, "PersonalityFn", &M);
|
Function *TestF =
|
Function::Create(RetVoidTy, GlobalValue::ExternalLinkage, "TestFn", &M);
|
|
// Set up the personality function
|
TestF->setPersonalityFn(PersonalityF);
|
auto PersonalityUsers = PersonalityF->user_begin();
|
|
// One user and that user is the Test function
|
EXPECT_EQ(*PersonalityUsers, TestF);
|
EXPECT_EQ(++PersonalityUsers, PersonalityF->user_end());
|
|
// Reset the personality function
|
TestF->setPersonalityFn(nullptr);
|
|
// No users should remain
|
EXPECT_TRUE(TestF->user_empty());
|
}
|
|
} // end anonymous namespace
|
