forked from OSchip/llvm-project
Try to fix a layering violation introduced by r213945
The dragonegg buildbot (and others?) started failing after r213945/r213946 because `llvm-as` wasn't linking in the bitcode reader. I think moving the verify functions to the same file as the verify pass should fix the build. Adding a command-line option for maintaining use-list order in assembly as a drive-by to prevent warnings about unused static functions. llvm-svn: 213947
This commit is contained in:
Duncan P. N. Exon Smith
parent
f62acab1c0
commit
20a005f27a
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@ -15,28 +15,21 @@
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#ifndef LLVM_IR_USELISTORDER_H
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#define LLVM_IR_USELISTORDER_H
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#include "llvm/ADT/ArrayRef.h"
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namespace llvm {
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class Module;
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/// \brief Whether to preserve use-list ordering.
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bool shouldPreserveBitcodeUseListOrder();
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bool shouldPreserveAssemblyUseListOrder();
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/// \brief Shuffle all use-lists in a module.
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///
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/// Adds \c SeedOffset to the default seed for the random number generator.
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void shuffleUseLists(Module &M, unsigned SeedOffset = 0);
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/// \brief Verify use-list order after serializing to bitcode.
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///
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/// \return \c true if there are no errors.
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bool verifyBitcodeUseListOrder(const Module &M);
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/// \brief Verify use-list order after serializing to assembly.
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///
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/// \return \c true if there are no errors.
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bool verifyAssemblyUseListOrder(const Module &M);
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} // end namespace llvm
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#endif
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@ -14,18 +14,10 @@
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#include "llvm/IR/UseListOrder.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/DenseSet.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/Bitcode/ReaderWriter.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/Support/CommandLine.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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#include <random>
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#include <vector>
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@ -39,10 +31,19 @@ static cl::opt<bool> PreserveBitcodeUseListOrder(
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cl::desc("Experimental support to preserve bitcode use-list order."),
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cl::init(false), cl::Hidden);
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static cl::opt<bool> PreserveAssemblyUseListOrder(
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"preserve-ll-use-list-order",
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cl::desc("Experimental support to preserve assembly use-list order."),
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cl::init(false), cl::Hidden);
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bool llvm::shouldPreserveBitcodeUseListOrder() {
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return PreserveBitcodeUseListOrder;
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}
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bool llvm::shouldPreserveAssemblyUseListOrder() {
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return PreserveAssemblyUseListOrder;
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}
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static void shuffleValueUseLists(Value *V, std::minstd_rand0 &Gen,
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DenseSet<Value *> &Seen) {
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if (!Seen.insert(V).second)
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@ -127,298 +128,3 @@ void llvm::shuffleUseLists(Module &M, unsigned SeedOffset) {
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DEBUG(dbgs() << "\n");
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}
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namespace {
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struct TempFile {
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std::string Filename;
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FileRemover Remover;
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bool init(const std::string &Ext);
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bool writeBitcode(const Module &M) const;
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bool writeAssembly(const Module &M) const;
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std::unique_ptr<Module> readBitcode(LLVMContext &Context) const;
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std::unique_ptr<Module> readAssembly(LLVMContext &Context) const;
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};
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struct ValueMapping {
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DenseMap<const Value *, unsigned> IDs;
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std::vector<const Value *> Values;
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/// \brief Construct a value mapping for module.
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///
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/// Creates mapping from every value in \c M to an ID. This mapping includes
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/// un-referencable values.
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///
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/// Every \a Value that gets serialized in some way should be represented
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/// here. The order needs to be deterministic, but it's unnecessary to match
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/// the value-ids in the bitcode writer.
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///
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/// All constants that are referenced by other values are included in the
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/// mapping, but others -- which wouldn't be serialized -- are not.
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ValueMapping(const Module &M);
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/// \brief Map a value.
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///
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/// Maps a value. If it's a constant, maps all of its operands first.
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void map(const Value *V);
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unsigned lookup(const Value *V) const { return IDs.lookup(V); }
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};
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} // end namespace
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bool TempFile::init(const std::string &Ext) {
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SmallVector<char, 64> Vector;
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DEBUG(dbgs() << " - create-temp-file\n");
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if (auto EC = sys::fs::createTemporaryFile("use-list-order", Ext, Vector)) {
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(void)EC;
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DEBUG(dbgs() << "error: " << EC.message() << "\n");
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return true;
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}
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assert(!Vector.empty());
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Filename.assign(Vector.data(), Vector.data() + Vector.size());
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Remover.setFile(Filename);
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DEBUG(dbgs() << " - filename = " << Filename << "\n");
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return false;
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}
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bool TempFile::writeBitcode(const Module &M) const {
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DEBUG(dbgs() << " - write bitcode\n");
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std::string ErrorInfo;
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raw_fd_ostream OS(Filename.c_str(), ErrorInfo, sys::fs::F_None);
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if (!ErrorInfo.empty()) {
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DEBUG(dbgs() << "error: " << ErrorInfo << "\n");
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return true;
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}
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WriteBitcodeToFile(&M, OS);
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return false;
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}
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bool TempFile::writeAssembly(const Module &M) const {
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DEBUG(dbgs() << " - write assembly\n");
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std::string ErrorInfo;
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raw_fd_ostream OS(Filename.c_str(), ErrorInfo, sys::fs::F_Text);
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if (!ErrorInfo.empty()) {
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DEBUG(dbgs() << "error: " << ErrorInfo << "\n");
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return true;
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}
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OS << M;
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return false;
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}
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std::unique_ptr<Module> TempFile::readBitcode(LLVMContext &Context) const {
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DEBUG(dbgs() << " - read bitcode\n");
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ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOr =
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MemoryBuffer::getFile(Filename);
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if (!BufferOr) {
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DEBUG(dbgs() << "error: " << BufferOr.getError().message() << "\n");
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return nullptr;
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}
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std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOr.get());
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ErrorOr<Module *> ModuleOr = parseBitcodeFile(Buffer.release(), Context);
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if (!ModuleOr) {
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DEBUG(dbgs() << "error: " << ModuleOr.getError().message() << "\n");
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return nullptr;
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}
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return std::unique_ptr<Module>(ModuleOr.get());
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}
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std::unique_ptr<Module> TempFile::readAssembly(LLVMContext &Context) const {
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DEBUG(dbgs() << " - read assembly\n");
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SMDiagnostic Err;
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std::unique_ptr<Module> M(ParseAssemblyFile(Filename, Err, Context));
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if (!M.get())
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DEBUG(dbgs() << "error: "; Err.print("verify-use-list-order", dbgs()));
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return M;
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}
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ValueMapping::ValueMapping(const Module &M) {
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// Every value should be mapped, including things like void instructions and
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// basic blocks that are kept out of the ValueEnumerator.
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//
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// The current mapping order makes it easier to debug the tables. It happens
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// to be similar to the ID mapping when writing ValueEnumerator, but they
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// aren't (and needn't be) in sync.
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// Globals.
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for (const GlobalVariable &G : M.globals())
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map(&G);
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for (const GlobalAlias &A : M.aliases())
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map(&A);
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for (const Function &F : M)
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map(&F);
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// Constants used by globals.
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for (const GlobalVariable &G : M.globals())
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if (G.hasInitializer())
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map(G.getInitializer());
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for (const GlobalAlias &A : M.aliases())
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map(A.getAliasee());
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for (const Function &F : M)
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if (F.hasPrefixData())
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map(F.getPrefixData());
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// Function bodies.
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for (const Function &F : M) {
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for (const Argument &A : F.args())
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map(&A);
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for (const BasicBlock &BB : F)
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map(&BB);
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for (const BasicBlock &BB : F)
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for (const Instruction &I : BB)
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map(&I);
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// Constants used by instructions.
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for (const BasicBlock &BB : F)
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for (const Instruction &I : BB)
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for (const Value *Op : I.operands())
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if ((isa<Constant>(Op) && !isa<GlobalValue>(*Op)) ||
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isa<InlineAsm>(Op))
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map(Op);
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}
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}
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void ValueMapping::map(const Value *V) {
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if (IDs.lookup(V))
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return;
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if (auto *C = dyn_cast<Constant>(V))
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if (!isa<GlobalValue>(C))
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for (const Value *Op : C->operands())
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map(Op);
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Values.push_back(V);
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IDs[V] = Values.size();
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}
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#ifndef NDEBUG
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static void dumpMapping(const ValueMapping &VM) {
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dbgs() << "value-mapping (size = " << VM.Values.size() << "):\n";
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for (unsigned I = 0, E = VM.Values.size(); I != E; ++I) {
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dbgs() << " - id = " << I << ", value = ";
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VM.Values[I]->dump();
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}
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}
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static void debugValue(const ValueMapping &M, unsigned I, StringRef Desc) {
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const Value *V = M.Values[I];
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dbgs() << " - " << Desc << " value = ";
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V->dump();
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for (const Use &U : V->uses()) {
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dbgs() << " => use: op = " << U.getOperandNo()
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<< ", user-id = " << M.IDs.lookup(U.getUser()) << ", user = ";
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U.getUser()->dump();
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}
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}
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static void debugUserMismatch(const ValueMapping &L, const ValueMapping &R,
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unsigned I) {
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dbgs() << " - fail: user mismatch: ID = " << I << "\n";
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debugValue(L, I, "LHS");
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debugValue(R, I, "RHS");
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dbgs() << "\nlhs-";
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dumpMapping(L);
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dbgs() << "\nrhs-";
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dumpMapping(R);
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}
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static void debugSizeMismatch(const ValueMapping &L, const ValueMapping &R) {
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dbgs() << " - fail: map size: " << L.Values.size()
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<< " != " << R.Values.size() << "\n";
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dbgs() << "\nlhs-";
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dumpMapping(L);
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dbgs() << "\nrhs-";
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dumpMapping(R);
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}
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#endif
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static bool matches(const ValueMapping &LM, const ValueMapping &RM) {
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DEBUG(dbgs() << "compare value maps\n");
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if (LM.Values.size() != RM.Values.size()) {
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DEBUG(debugSizeMismatch(LM, RM));
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return false;
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}
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// This mapping doesn't include dangling constant users, since those don't
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// get serialized. However, checking if users are constant and calling
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// isConstantUsed() on every one is very expensive. Instead, just check if
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// the user is mapped.
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auto skipUnmappedUsers =
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[&](Value::const_use_iterator &U, Value::const_use_iterator E,
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const ValueMapping &M) {
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while (U != E && !M.lookup(U->getUser()))
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++U;
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};
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// Iterate through all values, and check that both mappings have the same
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// users.
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for (unsigned I = 0, E = LM.Values.size(); I != E; ++I) {
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const Value *L = LM.Values[I];
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const Value *R = RM.Values[I];
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auto LU = L->use_begin(), LE = L->use_end();
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auto RU = R->use_begin(), RE = R->use_end();
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skipUnmappedUsers(LU, LE, LM);
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skipUnmappedUsers(RU, RE, RM);
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while (LU != LE) {
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if (RU == RE) {
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DEBUG(debugUserMismatch(LM, RM, I));
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return false;
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}
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if (LM.lookup(LU->getUser()) != RM.lookup(RU->getUser())) {
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DEBUG(debugUserMismatch(LM, RM, I));
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return false;
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}
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if (LU->getOperandNo() != RU->getOperandNo()) {
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DEBUG(debugUserMismatch(LM, RM, I));
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return false;
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}
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skipUnmappedUsers(++LU, LE, LM);
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skipUnmappedUsers(++RU, RE, RM);
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}
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if (RU != RE) {
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DEBUG(debugUserMismatch(LM, RM, I));
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return false;
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}
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}
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return true;
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}
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bool llvm::verifyBitcodeUseListOrder(const Module &M) {
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DEBUG(dbgs() << "*** verify-use-list-order: bitcode ***\n");
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TempFile F;
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if (F.init("bc"))
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return false;
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if (F.writeBitcode(M))
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return false;
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LLVMContext Context;
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std::unique_ptr<Module> OtherM = F.readBitcode(Context);
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if (!OtherM)
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return false;
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return matches(ValueMapping(M), ValueMapping(*OtherM));
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}
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bool llvm::verifyAssemblyUseListOrder(const Module &M) {
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DEBUG(dbgs() << "*** verify-use-list-order: assembly ***\n");
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TempFile F;
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if (F.init("ll"))
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return false;
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if (F.writeAssembly(M))
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return false;
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LLVMContext Context;
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std::unique_ptr<Module> OtherM = F.readAssembly(Context);
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if (!OtherM)
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return false;
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return matches(ValueMapping(M), ValueMapping(*OtherM));
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}
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@ -15,15 +15,320 @@
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//===----------------------------------------------------------------------===//
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#include "llvm/Transforms/IPO.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/Bitcode/ReaderWriter.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/UseListOrder.h"
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#include "llvm/Pass.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/FileUtilities.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/SourceMgr.h"
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using namespace llvm;
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#define DEBUG_TYPE "use-list-order"
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namespace {
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struct TempFile {
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std::string Filename;
|
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FileRemover Remover;
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bool init(const std::string &Ext);
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bool writeBitcode(const Module &M) const;
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bool writeAssembly(const Module &M) const;
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std::unique_ptr<Module> readBitcode(LLVMContext &Context) const;
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std::unique_ptr<Module> readAssembly(LLVMContext &Context) const;
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};
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struct ValueMapping {
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DenseMap<const Value *, unsigned> IDs;
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std::vector<const Value *> Values;
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|
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/// \brief Construct a value mapping for module.
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///
|
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/// Creates mapping from every value in \c M to an ID. This mapping includes
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/// un-referencable values.
|
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///
|
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/// Every \a Value that gets serialized in some way should be represented
|
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/// here. The order needs to be deterministic, but it's unnecessary to match
|
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/// the value-ids in the bitcode writer.
|
||||
///
|
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/// All constants that are referenced by other values are included in the
|
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/// mapping, but others -- which wouldn't be serialized -- are not.
|
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ValueMapping(const Module &M);
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/// \brief Map a value.
|
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///
|
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/// Maps a value. If it's a constant, maps all of its operands first.
|
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void map(const Value *V);
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unsigned lookup(const Value *V) const { return IDs.lookup(V); }
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};
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|
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} // end namespace
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|
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bool TempFile::init(const std::string &Ext) {
|
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SmallVector<char, 64> Vector;
|
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DEBUG(dbgs() << " - create-temp-file\n");
|
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if (auto EC = sys::fs::createTemporaryFile("use-list-order", Ext, Vector)) {
|
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(void)EC;
|
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DEBUG(dbgs() << "error: " << EC.message() << "\n");
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return true;
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}
|
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assert(!Vector.empty());
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|
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Filename.assign(Vector.data(), Vector.data() + Vector.size());
|
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Remover.setFile(Filename);
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DEBUG(dbgs() << " - filename = " << Filename << "\n");
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return false;
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}
|
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|
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bool TempFile::writeBitcode(const Module &M) const {
|
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DEBUG(dbgs() << " - write bitcode\n");
|
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std::string ErrorInfo;
|
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raw_fd_ostream OS(Filename.c_str(), ErrorInfo, sys::fs::F_None);
|
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if (!ErrorInfo.empty()) {
|
||||
DEBUG(dbgs() << "error: " << ErrorInfo << "\n");
|
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return true;
|
||||
}
|
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|
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WriteBitcodeToFile(&M, OS);
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return false;
|
||||
}
|
||||
|
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bool TempFile::writeAssembly(const Module &M) const {
|
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DEBUG(dbgs() << " - write assembly\n");
|
||||
std::string ErrorInfo;
|
||||
raw_fd_ostream OS(Filename.c_str(), ErrorInfo, sys::fs::F_Text);
|
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if (!ErrorInfo.empty()) {
|
||||
DEBUG(dbgs() << "error: " << ErrorInfo << "\n");
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return true;
|
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}
|
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|
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OS << M;
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return false;
|
||||
}
|
||||
|
||||
std::unique_ptr<Module> TempFile::readBitcode(LLVMContext &Context) const {
|
||||
DEBUG(dbgs() << " - read bitcode\n");
|
||||
ErrorOr<std::unique_ptr<MemoryBuffer>> BufferOr =
|
||||
MemoryBuffer::getFile(Filename);
|
||||
if (!BufferOr) {
|
||||
DEBUG(dbgs() << "error: " << BufferOr.getError().message() << "\n");
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
std::unique_ptr<MemoryBuffer> Buffer = std::move(BufferOr.get());
|
||||
ErrorOr<Module *> ModuleOr = parseBitcodeFile(Buffer.release(), Context);
|
||||
if (!ModuleOr) {
|
||||
DEBUG(dbgs() << "error: " << ModuleOr.getError().message() << "\n");
|
||||
return nullptr;
|
||||
}
|
||||
return std::unique_ptr<Module>(ModuleOr.get());
|
||||
}
|
||||
|
||||
std::unique_ptr<Module> TempFile::readAssembly(LLVMContext &Context) const {
|
||||
DEBUG(dbgs() << " - read assembly\n");
|
||||
SMDiagnostic Err;
|
||||
std::unique_ptr<Module> M(ParseAssemblyFile(Filename, Err, Context));
|
||||
if (!M.get())
|
||||
DEBUG(dbgs() << "error: "; Err.print("verify-use-list-order", dbgs()));
|
||||
return M;
|
||||
}
|
||||
|
||||
ValueMapping::ValueMapping(const Module &M) {
|
||||
// Every value should be mapped, including things like void instructions and
|
||||
// basic blocks that are kept out of the ValueEnumerator.
|
||||
//
|
||||
// The current mapping order makes it easier to debug the tables. It happens
|
||||
// to be similar to the ID mapping when writing ValueEnumerator, but they
|
||||
// aren't (and needn't be) in sync.
|
||||
|
||||
// Globals.
|
||||
for (const GlobalVariable &G : M.globals())
|
||||
map(&G);
|
||||
for (const GlobalAlias &A : M.aliases())
|
||||
map(&A);
|
||||
for (const Function &F : M)
|
||||
map(&F);
|
||||
|
||||
// Constants used by globals.
|
||||
for (const GlobalVariable &G : M.globals())
|
||||
if (G.hasInitializer())
|
||||
map(G.getInitializer());
|
||||
for (const GlobalAlias &A : M.aliases())
|
||||
map(A.getAliasee());
|
||||
for (const Function &F : M)
|
||||
if (F.hasPrefixData())
|
||||
map(F.getPrefixData());
|
||||
|
||||
// Function bodies.
|
||||
for (const Function &F : M) {
|
||||
for (const Argument &A : F.args())
|
||||
map(&A);
|
||||
for (const BasicBlock &BB : F)
|
||||
map(&BB);
|
||||
for (const BasicBlock &BB : F)
|
||||
for (const Instruction &I : BB)
|
||||
map(&I);
|
||||
|
||||
// Constants used by instructions.
|
||||
for (const BasicBlock &BB : F)
|
||||
for (const Instruction &I : BB)
|
||||
for (const Value *Op : I.operands())
|
||||
if ((isa<Constant>(Op) && !isa<GlobalValue>(*Op)) ||
|
||||
isa<InlineAsm>(Op))
|
||||
map(Op);
|
||||
}
|
||||
}
|
||||
|
||||
void ValueMapping::map(const Value *V) {
|
||||
if (IDs.lookup(V))
|
||||
return;
|
||||
|
||||
if (auto *C = dyn_cast<Constant>(V))
|
||||
if (!isa<GlobalValue>(C))
|
||||
for (const Value *Op : C->operands())
|
||||
map(Op);
|
||||
|
||||
Values.push_back(V);
|
||||
IDs[V] = Values.size();
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
static void dumpMapping(const ValueMapping &VM) {
|
||||
dbgs() << "value-mapping (size = " << VM.Values.size() << "):\n";
|
||||
for (unsigned I = 0, E = VM.Values.size(); I != E; ++I) {
|
||||
dbgs() << " - id = " << I << ", value = ";
|
||||
VM.Values[I]->dump();
|
||||
}
|
||||
}
|
||||
|
||||
static void debugValue(const ValueMapping &M, unsigned I, StringRef Desc) {
|
||||
const Value *V = M.Values[I];
|
||||
dbgs() << " - " << Desc << " value = ";
|
||||
V->dump();
|
||||
for (const Use &U : V->uses()) {
|
||||
dbgs() << " => use: op = " << U.getOperandNo()
|
||||
<< ", user-id = " << M.IDs.lookup(U.getUser()) << ", user = ";
|
||||
U.getUser()->dump();
|
||||
}
|
||||
}
|
||||
|
||||
static void debugUserMismatch(const ValueMapping &L, const ValueMapping &R,
|
||||
unsigned I) {
|
||||
dbgs() << " - fail: user mismatch: ID = " << I << "\n";
|
||||
debugValue(L, I, "LHS");
|
||||
debugValue(R, I, "RHS");
|
||||
|
||||
dbgs() << "\nlhs-";
|
||||
dumpMapping(L);
|
||||
dbgs() << "\nrhs-";
|
||||
dumpMapping(R);
|
||||
}
|
||||
|
||||
static void debugSizeMismatch(const ValueMapping &L, const ValueMapping &R) {
|
||||
dbgs() << " - fail: map size: " << L.Values.size()
|
||||
<< " != " << R.Values.size() << "\n";
|
||||
dbgs() << "\nlhs-";
|
||||
dumpMapping(L);
|
||||
dbgs() << "\nrhs-";
|
||||
dumpMapping(R);
|
||||
}
|
||||
#endif
|
||||
|
||||
static bool matches(const ValueMapping &LM, const ValueMapping &RM) {
|
||||
DEBUG(dbgs() << "compare value maps\n");
|
||||
if (LM.Values.size() != RM.Values.size()) {
|
||||
DEBUG(debugSizeMismatch(LM, RM));
|
||||
return false;
|
||||
}
|
||||
|
||||
// This mapping doesn't include dangling constant users, since those don't
|
||||
// get serialized. However, checking if users are constant and calling
|
||||
// isConstantUsed() on every one is very expensive. Instead, just check if
|
||||
// the user is mapped.
|
||||
auto skipUnmappedUsers =
|
||||
[&](Value::const_use_iterator &U, Value::const_use_iterator E,
|
||||
const ValueMapping &M) {
|
||||
while (U != E && !M.lookup(U->getUser()))
|
||||
++U;
|
||||
};
|
||||
|
||||
// Iterate through all values, and check that both mappings have the same
|
||||
// users.
|
||||
for (unsigned I = 0, E = LM.Values.size(); I != E; ++I) {
|
||||
const Value *L = LM.Values[I];
|
||||
const Value *R = RM.Values[I];
|
||||
auto LU = L->use_begin(), LE = L->use_end();
|
||||
auto RU = R->use_begin(), RE = R->use_end();
|
||||
skipUnmappedUsers(LU, LE, LM);
|
||||
skipUnmappedUsers(RU, RE, RM);
|
||||
|
||||
while (LU != LE) {
|
||||
if (RU == RE) {
|
||||
DEBUG(debugUserMismatch(LM, RM, I));
|
||||
return false;
|
||||
}
|
||||
if (LM.lookup(LU->getUser()) != RM.lookup(RU->getUser())) {
|
||||
DEBUG(debugUserMismatch(LM, RM, I));
|
||||
return false;
|
||||
}
|
||||
if (LU->getOperandNo() != RU->getOperandNo()) {
|
||||
DEBUG(debugUserMismatch(LM, RM, I));
|
||||
return false;
|
||||
}
|
||||
skipUnmappedUsers(++LU, LE, LM);
|
||||
skipUnmappedUsers(++RU, RE, RM);
|
||||
}
|
||||
if (RU != RE) {
|
||||
DEBUG(debugUserMismatch(LM, RM, I));
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool verifyBitcodeUseListOrder(const Module &M) {
|
||||
DEBUG(dbgs() << "*** verify-use-list-order: bitcode ***\n");
|
||||
TempFile F;
|
||||
if (F.init("bc"))
|
||||
return false;
|
||||
|
||||
if (F.writeBitcode(M))
|
||||
return false;
|
||||
|
||||
LLVMContext Context;
|
||||
std::unique_ptr<Module> OtherM = F.readBitcode(Context);
|
||||
if (!OtherM)
|
||||
return false;
|
||||
|
||||
return matches(ValueMapping(M), ValueMapping(*OtherM));
|
||||
}
|
||||
|
||||
static bool verifyAssemblyUseListOrder(const Module &M) {
|
||||
DEBUG(dbgs() << "*** verify-use-list-order: assembly ***\n");
|
||||
TempFile F;
|
||||
if (F.init("ll"))
|
||||
return false;
|
||||
|
||||
if (F.writeAssembly(M))
|
||||
return false;
|
||||
|
||||
LLVMContext Context;
|
||||
std::unique_ptr<Module> OtherM = F.readAssembly(Context);
|
||||
if (!OtherM)
|
||||
return false;
|
||||
|
||||
return matches(ValueMapping(M), ValueMapping(*OtherM));
|
||||
}
|
||||
|
||||
namespace {
|
||||
class VerifyUseListOrder : public ModulePass {
|
||||
public:
|
||||
|
|
@ -53,6 +358,10 @@ bool VerifyUseListOrder::runOnModule(Module &M) {
|
|||
if (!verifyBitcodeUseListOrder(M))
|
||||
report_fatal_error("bitcode use-list order changed");
|
||||
|
||||
if (shouldPreserveBitcodeUseListOrder())
|
||||
if (!verifyAssemblyUseListOrder(M))
|
||||
report_fatal_error("assembly use-list order changed");
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue