llvm-6502/unittests/Analysis/MixedTBAATest.cpp
Chandler Carruth 417c5c172c [PM] Remove the old 'PassManager.h' header file at the top level of
LLVM's include tree and the use of using declarations to hide the
'legacy' namespace for the old pass manager.

This undoes the primary modules-hostile change I made to keep
out-of-tree targets building. I sent an email inquiring about whether
this would be reasonable to do at this phase and people seemed fine with
it, so making it a reality. This should allow us to start bootstrapping
with modules to a certain extent along with making it easier to mix and
match headers in general.

The updates to any code for users of LLVM are very mechanical. Switch
from including "llvm/PassManager.h" to "llvm/IR/LegacyPassManager.h".
Qualify the types which now produce compile errors with "legacy::". The
most common ones are "PassManager", "PassManagerBase", and
"FunctionPassManager".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@229094 91177308-0d34-0410-b5e6-96231b3b80d8
2015-02-13 10:01:29 +00:00

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2.5 KiB
C++

//===--- MixedTBAATest.cpp - Mixed TBAA 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/Analysis/Passes.h"
#include "llvm/IR/Constants.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/LegacyPassManager.h"
#include "llvm/Support/CommandLine.h"
#include "gtest/gtest.h"
namespace llvm {
namespace {
class MixedTBAATest : public testing::Test {
protected:
MixedTBAATest() : M("MixedTBAATest", C), MD(C) {}
LLVMContext C;
Module M;
MDBuilder MD;
legacy::PassManager PM;
};
TEST_F(MixedTBAATest, MixedTBAA) {
// Setup function.
FunctionType *FTy = FunctionType::get(Type::getVoidTy(C),
std::vector<Type *>(), false);
auto *F = cast<Function>(M.getOrInsertFunction("f", FTy));
auto *BB = BasicBlock::Create(C, "entry", F);
auto IntType = Type::getInt32Ty(C);
auto PtrType = Type::getInt32PtrTy(C);
auto *Value = ConstantInt::get(IntType, 42);
auto *Addr = ConstantPointerNull::get(PtrType);
auto *Store1 = new StoreInst(Value, Addr, BB);
auto *Store2 = new StoreInst(Value, Addr, BB);
ReturnInst::Create(C, nullptr, BB);
// New TBAA metadata
{
auto RootMD = MD.createTBAARoot("Simple C/C++ TBAA");
auto MD1 = MD.createTBAAScalarTypeNode("omnipotent char", RootMD);
auto MD2 = MD.createTBAAScalarTypeNode("int", MD1);
auto MD3 = MD.createTBAAStructTagNode(MD2, MD2, 0);
Store2->setMetadata(LLVMContext::MD_tbaa, MD3);
}
// Old TBAA metadata
{
auto RootMD = MD.createTBAARoot("Simple C/C++ TBAA");
auto MD1 = MD.createTBAANode("omnipotent char", RootMD);
auto MD2 = MD.createTBAANode("int", MD1);
Store1->setMetadata(LLVMContext::MD_tbaa, MD2);
}
// Run the TBAA eval pass on a mixture of path-aware and non-path-aware TBAA.
// The order of the metadata (path-aware vs non-path-aware) is important,
// because the AA eval pass only runs one test per store-pair.
const char* args[] = { "MixedTBAATest", "-evaluate-aa-metadata" };
cl::ParseCommandLineOptions(sizeof(args) / sizeof(const char*), args);
PM.add(createTypeBasedAliasAnalysisPass());
PM.add(createAAEvalPass());
PM.run(M);
}
} // end anonymous namspace
} // end llvm namespace