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5ad5f15cff
directory. These passes are already defined in the IR library, and it doesn't make any sense to have the headers in Analysis. Long term, I think there is going to be a much better way to divide these matters. The dominators code should be fully separated into the abstract graph algorithm and have that put in Support where it becomes obvious that evn Clang's CFGBlock's can use it. Then the verifier can manually construct dominance information from the Support-driven interface while the Analysis library can provide a pass which both caches, reconstructs, and supports a nice update API. But those are very long term, and so I don't want to leave the really confusing structure until that day arrives. llvm-svn: 199082
66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
//===- llvm/unittest/Bitcode/BitReaderTest.cpp - Tests for BitReader ------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/SmallString.h"
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#include "llvm/Bitcode/BitstreamWriter.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Verifier.h"
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#include "llvm/PassManager.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace {
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static Module *makeLLVMModule() {
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Module* Mod = new Module("test-mem", getGlobalContext());
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FunctionType* FuncTy =
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FunctionType::get(Type::getVoidTy(Mod->getContext()), false);
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Function* Func = Function::Create(FuncTy,GlobalValue::ExternalLinkage,
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"func", Mod);
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BasicBlock* Entry = BasicBlock::Create(Mod->getContext(), "entry", Func);
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new UnreachableInst(Mod->getContext(), Entry);
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BasicBlock* BB = BasicBlock::Create(Mod->getContext(), "bb", Func);
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new UnreachableInst(Mod->getContext(), BB);
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PointerType* Int8Ptr = Type::getInt8PtrTy(Mod->getContext());
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new GlobalVariable(*Mod, Int8Ptr, /*isConstant=*/true,
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GlobalValue::ExternalLinkage,
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BlockAddress::get(BB), "table");
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return Mod;
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}
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static void writeModuleToBuffer(SmallVectorImpl<char> &Buffer) {
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OwningPtr<Module> Mod(makeLLVMModule());
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raw_svector_ostream OS(Buffer);
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WriteBitcodeToFile(Mod.get(), OS);
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}
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TEST(BitReaderTest, MaterializeFunctionsForBlockAddr) { // PR11677
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SmallString<1024> Mem;
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writeModuleToBuffer(Mem);
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MemoryBuffer *Buffer = MemoryBuffer::getMemBuffer(Mem.str(), "test", false);
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std::string errMsg;
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OwningPtr<Module> m(getLazyBitcodeModule(Buffer, getGlobalContext(), &errMsg));
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PassManager passes;
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passes.add(createVerifierPass());
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passes.run(*m);
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}
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}
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}
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