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//===- llvm/unittest/IR/ValueTest.cpp - Value 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/Assembly/Parser.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Value.h"
#include "llvm/Support/SourceMgr.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(ValueTest, UsedInBasicBlock) {
LLVMContext C;
const char *ModuleString = "define void @f(i32 %x, i32 %y) {\n"
"bb0:\n"
" %y1 = add i32 %y, 1\n"
" %y2 = add i32 %y, 1\n"
" %y3 = add i32 %y, 1\n"
" %y4 = add i32 %y, 1\n"
" %y5 = add i32 %y, 1\n"
" %y6 = add i32 %y, 1\n"
" %y7 = add i32 %y, 1\n"
" %y8 = add i32 %x, 1\n"
" ret void\n"
"}\n";
SMDiagnostic Err;
Module *M = ParseAssemblyString(ModuleString, NULL, Err, C);
Function *F = M->getFunction("f");
EXPECT_FALSE(F->isUsedInBasicBlock(F->begin()));
EXPECT_TRUE((++F->arg_begin())->isUsedInBasicBlock(F->begin()));
EXPECT_TRUE(F->arg_begin()->isUsedInBasicBlock(F->begin()));
}
} // end anonymous namespace
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