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| author | 2020-08-03 15:06:44 +0000 | |
|---|---|---|
| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/lib/IR/Pass.cpp | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/lib/IR/Pass.cpp')
| -rw-r--r-- | gnu/llvm/lib/IR/Pass.cpp | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/gnu/llvm/lib/IR/Pass.cpp b/gnu/llvm/lib/IR/Pass.cpp deleted file mode 100644 index a1dc1788249..00000000000 --- a/gnu/llvm/lib/IR/Pass.cpp +++ /dev/null @@ -1,313 +0,0 @@ -//===- Pass.cpp - LLVM Pass Infrastructure Implementation -----------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// -// -// This file implements the LLVM Pass infrastructure. It is primarily -// responsible with ensuring that passes are executed and batched together -// optimally. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Pass.h" -#include "llvm/Config/llvm-config.h" -#include "llvm/IR/Attributes.h" -#include "llvm/IR/BasicBlock.h" -#include "llvm/IR/Function.h" -#include "llvm/IR/IRPrintingPasses.h" -#include "llvm/IR/LLVMContext.h" -#include "llvm/IR/LegacyPassNameParser.h" -#include "llvm/IR/Module.h" -#include "llvm/IR/OptBisect.h" -#include "llvm/PassInfo.h" -#include "llvm/PassRegistry.h" -#include "llvm/PassSupport.h" -#include "llvm/Support/Compiler.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/raw_ostream.h" -#include <cassert> - -using namespace llvm; - -#define DEBUG_TYPE "ir" - -//===----------------------------------------------------------------------===// -// Pass Implementation -// - -// Force out-of-line virtual method. -Pass::~Pass() { - delete Resolver; -} - -// Force out-of-line virtual method. -ModulePass::~ModulePass() = default; - -Pass *ModulePass::createPrinterPass(raw_ostream &OS, - const std::string &Banner) const { - return createPrintModulePass(OS, Banner); -} - -PassManagerType ModulePass::getPotentialPassManagerType() const { - return PMT_ModulePassManager; -} - -bool ModulePass::skipModule(Module &M) const { - return !M.getContext().getOptPassGate().shouldRunPass(this, M); -} - -bool Pass::mustPreserveAnalysisID(char &AID) const { - return Resolver->getAnalysisIfAvailable(&AID, true) != nullptr; -} - -// dumpPassStructure - Implement the -debug-pass=Structure option -void Pass::dumpPassStructure(unsigned Offset) { - dbgs().indent(Offset*2) << getPassName() << "\n"; -} - -/// getPassName - Return a nice clean name for a pass. This usually -/// implemented in terms of the name that is registered by one of the -/// Registration templates, but can be overloaded directly. -StringRef Pass::getPassName() const { - AnalysisID AID = getPassID(); - const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(AID); - if (PI) - return PI->getPassName(); - return "Unnamed pass: implement Pass::getPassName()"; -} - -void Pass::preparePassManager(PMStack &) { - // By default, don't do anything. -} - -PassManagerType Pass::getPotentialPassManagerType() const { - // Default implementation. - return PMT_Unknown; -} - -void Pass::getAnalysisUsage(AnalysisUsage &) const { - // By default, no analysis results are used, all are invalidated. -} - -void Pass::releaseMemory() { - // By default, don't do anything. -} - -void Pass::verifyAnalysis() const { - // By default, don't do anything. -} - -void *Pass::getAdjustedAnalysisPointer(AnalysisID AID) { - return this; -} - -ImmutablePass *Pass::getAsImmutablePass() { - return nullptr; -} - -PMDataManager *Pass::getAsPMDataManager() { - return nullptr; -} - -void Pass::setResolver(AnalysisResolver *AR) { - assert(!Resolver && "Resolver is already set"); - Resolver = AR; -} - -// print - Print out the internal state of the pass. This is called by Analyze -// to print out the contents of an analysis. Otherwise it is not necessary to -// implement this method. -void Pass::print(raw_ostream &OS, const Module *) const { - OS << "Pass::print not implemented for pass: '" << getPassName() << "'!\n"; -} - -#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP) -// dump - call print(cerr); -LLVM_DUMP_METHOD void Pass::dump() const { - print(dbgs(), nullptr); -} -#endif - -//===----------------------------------------------------------------------===// -// ImmutablePass Implementation -// -// Force out-of-line virtual method. -ImmutablePass::~ImmutablePass() = default; - -void ImmutablePass::initializePass() { - // By default, don't do anything. -} - -//===----------------------------------------------------------------------===// -// FunctionPass Implementation -// - -Pass *FunctionPass::createPrinterPass(raw_ostream &OS, - const std::string &Banner) const { - return createPrintFunctionPass(OS, Banner); -} - -PassManagerType FunctionPass::getPotentialPassManagerType() const { - return PMT_FunctionPassManager; -} - -bool FunctionPass::skipFunction(const Function &F) const { - if (!F.getContext().getOptPassGate().shouldRunPass(this, F)) - return true; - - if (F.hasFnAttribute(Attribute::OptimizeNone)) { - LLVM_DEBUG(dbgs() << "Skipping pass '" << getPassName() << "' on function " - << F.getName() << "\n"); - return true; - } - return false; -} - -//===----------------------------------------------------------------------===// -// BasicBlockPass Implementation -// - -Pass *BasicBlockPass::createPrinterPass(raw_ostream &OS, - const std::string &Banner) const { - return createPrintBasicBlockPass(OS, Banner); -} - -bool BasicBlockPass::doInitialization(Function &) { - // By default, don't do anything. - return false; -} - -bool BasicBlockPass::doFinalization(Function &) { - // By default, don't do anything. - return false; -} - -bool BasicBlockPass::skipBasicBlock(const BasicBlock &BB) const { - const Function *F = BB.getParent(); - if (!F) - return false; - if (!F->getContext().getOptPassGate().shouldRunPass(this, BB)) - return true; - if (F->hasFnAttribute(Attribute::OptimizeNone)) { - // Report this only once per function. - if (&BB == &F->getEntryBlock()) - LLVM_DEBUG(dbgs() << "Skipping pass '" << getPassName() - << "' on function " << F->getName() << "\n"); - return true; - } - return false; -} - -PassManagerType BasicBlockPass::getPotentialPassManagerType() const { - return PMT_BasicBlockPassManager; -} - -const PassInfo *Pass::lookupPassInfo(const void *TI) { - return PassRegistry::getPassRegistry()->getPassInfo(TI); -} - -const PassInfo *Pass::lookupPassInfo(StringRef Arg) { - return PassRegistry::getPassRegistry()->getPassInfo(Arg); -} - -Pass *Pass::createPass(AnalysisID ID) { - const PassInfo *PI = PassRegistry::getPassRegistry()->getPassInfo(ID); - if (!PI) - return nullptr; - return PI->createPass(); -} - -//===----------------------------------------------------------------------===// -// Analysis Group Implementation Code -//===----------------------------------------------------------------------===// - -// RegisterAGBase implementation - -RegisterAGBase::RegisterAGBase(StringRef Name, const void *InterfaceID, - const void *PassID, bool isDefault) - : PassInfo(Name, InterfaceID) { - PassRegistry::getPassRegistry()->registerAnalysisGroup(InterfaceID, PassID, - *this, isDefault); -} - -//===----------------------------------------------------------------------===// -// PassRegistrationListener implementation -// - -// enumeratePasses - Iterate over the registered passes, calling the -// passEnumerate callback on each PassInfo object. -void PassRegistrationListener::enumeratePasses() { - PassRegistry::getPassRegistry()->enumerateWith(this); -} - -PassNameParser::PassNameParser(cl::Option &O) - : cl::parser<const PassInfo *>(O) { - PassRegistry::getPassRegistry()->addRegistrationListener(this); -} - -// This only gets called during static destruction, in which case the -// PassRegistry will have already been destroyed by llvm_shutdown(). So -// attempting to remove the registration listener is an error. -PassNameParser::~PassNameParser() = default; - -//===----------------------------------------------------------------------===// -// AnalysisUsage Class Implementation -// - -namespace { - -struct GetCFGOnlyPasses : public PassRegistrationListener { - using VectorType = AnalysisUsage::VectorType; - - VectorType &CFGOnlyList; - - GetCFGOnlyPasses(VectorType &L) : CFGOnlyList(L) {} - - void passEnumerate(const PassInfo *P) override { - if (P->isCFGOnlyPass()) - CFGOnlyList.push_back(P->getTypeInfo()); - } -}; - -} // end anonymous namespace - -// setPreservesCFG - This function should be called to by the pass, iff they do -// not: -// -// 1. Add or remove basic blocks from the function -// 2. Modify terminator instructions in any way. -// -// This function annotates the AnalysisUsage info object to say that analyses -// that only depend on the CFG are preserved by this pass. -void AnalysisUsage::setPreservesCFG() { - // Since this transformation doesn't modify the CFG, it preserves all analyses - // that only depend on the CFG (like dominators, loop info, etc...) - GetCFGOnlyPasses(Preserved).enumeratePasses(); -} - -AnalysisUsage &AnalysisUsage::addPreserved(StringRef Arg) { - const PassInfo *PI = Pass::lookupPassInfo(Arg); - // If the pass exists, preserve it. Otherwise silently do nothing. - if (PI) Preserved.push_back(PI->getTypeInfo()); - return *this; -} - -AnalysisUsage &AnalysisUsage::addRequiredID(const void *ID) { - Required.push_back(ID); - return *this; -} - -AnalysisUsage &AnalysisUsage::addRequiredID(char &ID) { - Required.push_back(&ID); - return *this; -} - -AnalysisUsage &AnalysisUsage::addRequiredTransitiveID(char &ID) { - Required.push_back(&ID); - RequiredTransitive.push_back(&ID); - return *this; -} |
