llvm/unittests/IR/ValueTest.cpp
Matt Arsenault 2ebcd57e6a Fix getOrInsertGlobal dropping the address space.
Currently it will insert an illegal bitcast.
Arguably, the address space argument should be
added for the creation case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191702 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-30 21:23:03 +00:00

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3.1 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/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()));
}
TEST(GlobalTest, CreateAddressSpace) {
LLVMContext &Ctx = getGlobalContext();
OwningPtr<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",
0,
GlobalVariable::NotThreadLocal,
1);
// 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",
0,
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;
}
} // end anonymous namespace