1 //===- llvm/unittest/IR/UseTest.cpp - Use unit tests ----------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/AsmParser/Parser.h"
11 #include "llvm/IR/Function.h"
12 #include "llvm/IR/LLVMContext.h"
13 #include "llvm/IR/Module.h"
14 #include "llvm/IR/User.h"
15 #include "llvm/IR/Instructions.h"
16 #include "llvm/Support/SourceMgr.h"
17 #include "gtest/gtest.h"
27 const char *ModuleString = "define void @f(i32 %x) {\n"
29 " %v0 = add i32 %x, 0\n"
30 " %v2 = add i32 %x, 2\n"
31 " %v5 = add i32 %x, 5\n"
32 " %v1 = add i32 %x, 1\n"
33 " %v3 = add i32 %x, 3\n"
34 " %v7 = add i32 %x, 7\n"
35 " %v6 = add i32 %x, 6\n"
36 " %v4 = add i32 %x, 4\n"
40 Module *M = ParseAssemblyString(ModuleString, nullptr, Err, C);
41 Function *F = M->getFunction("f");
43 ASSERT_TRUE(F->arg_begin() != F->arg_end());
44 Argument &X = *F->arg_begin();
45 ASSERT_EQ("x", X.getName());
47 X.sortUseList([](const Use &L, const Use &R) {
48 return L.getUser()->getName() < R.getUser()->getName();
51 for (User *U : X.users())
52 EXPECT_EQ("v" + std::to_string(I++), U->getName());
55 X.sortUseList([](const Use &L, const Use &R) {
56 return L.getUser()->getName() > R.getUser()->getName();
59 for (User *U : X.users())
60 EXPECT_EQ("v" + std::to_string((7 - I++)), U->getName());
64 } // end anonymous namespace