forked from OSchip/llvm-project
110 lines
3.9 KiB
C++
110 lines
3.9 KiB
C++
//===- 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/AsmParser/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;
|
|
std::unique_ptr<Module> M = parseAssemblyString(ModuleString, 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()));
|
|
}
|
|
|
|
TEST(GlobalTest, CreateAddressSpace) {
|
|
LLVMContext &Ctx = getGlobalContext();
|
|
std::unique_ptr<Module> M(new Module("TestModule", Ctx));
|
|
Type *Int8Ty = Type::getInt8Ty(Ctx);
|
|
Type *Int32Ty = Type::getInt32Ty(Ctx);
|
|
|
|
GlobalVariable *Dummy0
|
|
= new GlobalVariable(*M,
|
|
Int32Ty,
|
|
true,
|
|
GlobalValue::ExternalLinkage,
|
|
Constant::getAllOnesValue(Int32Ty),
|
|
"dummy",
|
|
nullptr,
|
|
GlobalVariable::NotThreadLocal,
|
|
1);
|
|
|
|
EXPECT_TRUE(Value::MaximumAlignment == 536870912U);
|
|
Dummy0->setAlignment(536870912U);
|
|
EXPECT_EQ(Dummy0->getAlignment(), 536870912U);
|
|
|
|
// Make sure the address space isn't dropped when returning this.
|
|
Constant *Dummy1 = M->getOrInsertGlobal("dummy", Int32Ty);
|
|
EXPECT_EQ(Dummy0, Dummy1);
|
|
EXPECT_EQ(1u, Dummy1->getType()->getPointerAddressSpace());
|
|
|
|
|
|
// This one requires a bitcast, but the address space must also stay the same.
|
|
GlobalVariable *DummyCast0
|
|
= new GlobalVariable(*M,
|
|
Int32Ty,
|
|
true,
|
|
GlobalValue::ExternalLinkage,
|
|
Constant::getAllOnesValue(Int32Ty),
|
|
"dummy_cast",
|
|
nullptr,
|
|
GlobalVariable::NotThreadLocal,
|
|
1);
|
|
|
|
// Make sure the address space isn't dropped when returning this.
|
|
Constant *DummyCast1 = M->getOrInsertGlobal("dummy_cast", Int8Ty);
|
|
EXPECT_EQ(1u, DummyCast1->getType()->getPointerAddressSpace());
|
|
EXPECT_NE(DummyCast0, DummyCast1) << *DummyCast1;
|
|
}
|
|
|
|
#ifdef GTEST_HAS_DEATH_TEST
|
|
#ifndef NDEBUG
|
|
TEST(GlobalTest, AlignDeath) {
|
|
LLVMContext &Ctx = getGlobalContext();
|
|
std::unique_ptr<Module> M(new Module("TestModule", Ctx));
|
|
Type *Int32Ty = Type::getInt32Ty(Ctx);
|
|
GlobalVariable *Var =
|
|
new GlobalVariable(*M, Int32Ty, true, GlobalValue::ExternalLinkage,
|
|
Constant::getAllOnesValue(Int32Ty), "var", nullptr,
|
|
GlobalVariable::NotThreadLocal, 1);
|
|
|
|
EXPECT_DEATH(Var->setAlignment(536870913U), "Alignment is not a power of 2");
|
|
EXPECT_DEATH(Var->setAlignment(1073741824U),
|
|
"Alignment is greater than MaximumAlignment");
|
|
}
|
|
#endif
|
|
#endif
|
|
|
|
} // end anonymous namespace
|