2e39b57837
This reapplication changes debug intrinsic declaration removal to only take place when printing final IR, so that the processing format of the Module does not affect the output. This reverts commit d128448efdd4e2bf3c9bc9a5b43ae642aa78026f.
143 lines
4.7 KiB
C++
143 lines
4.7 KiB
C++
//===--- IRPrintingPasses.cpp - Module and Function printing passes -------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// PrintModulePass and PrintFunctionPass implementations for the legacy pass
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// manager.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/PrintPasses.h"
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#include "llvm/InitializePasses.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/raw_ostream.h"
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using namespace llvm;
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cl::opt<bool> WriteNewDbgInfoFormat(
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"write-experimental-debuginfo",
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cl::desc("Write debug info in the new non-intrinsic format"),
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cl::init(false));
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namespace {
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class PrintModulePassWrapper : public ModulePass {
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raw_ostream &OS;
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std::string Banner;
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bool ShouldPreserveUseListOrder;
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public:
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static char ID;
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PrintModulePassWrapper() : ModulePass(ID), OS(dbgs()) {}
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PrintModulePassWrapper(raw_ostream &OS, const std::string &Banner,
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bool ShouldPreserveUseListOrder)
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: ModulePass(ID), OS(OS), Banner(Banner),
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ShouldPreserveUseListOrder(ShouldPreserveUseListOrder) {}
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bool runOnModule(Module &M) override {
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// RemoveDIs: Regardless of the format we've processed this module in, use
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// `WriteNewDbgInfoFormat` to determine which format we use to write it.
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ScopedDbgInfoFormatSetter FormatSetter(M, WriteNewDbgInfoFormat);
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// Remove intrinsic declarations when printing in the new format.
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// TODO: Move this into Module::setIsNewDbgInfoFormat when we're ready to
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// update test output.
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if (WriteNewDbgInfoFormat)
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M.removeDebugIntrinsicDeclarations();
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if (llvm::isFunctionInPrintList("*")) {
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if (!Banner.empty())
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OS << Banner << "\n";
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M.print(OS, nullptr, ShouldPreserveUseListOrder);
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} else {
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bool BannerPrinted = false;
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for (const auto &F : M.functions()) {
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if (llvm::isFunctionInPrintList(F.getName())) {
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if (!BannerPrinted && !Banner.empty()) {
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OS << Banner << "\n";
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BannerPrinted = true;
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}
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F.print(OS);
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}
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}
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}
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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StringRef getPassName() const override { return "Print Module IR"; }
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};
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class PrintFunctionPassWrapper : public FunctionPass {
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raw_ostream &OS;
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std::string Banner;
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public:
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static char ID;
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PrintFunctionPassWrapper() : FunctionPass(ID), OS(dbgs()) {}
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PrintFunctionPassWrapper(raw_ostream &OS, const std::string &Banner)
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: FunctionPass(ID), OS(OS), Banner(Banner) {}
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// This pass just prints a banner followed by the function as it's processed.
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bool runOnFunction(Function &F) override {
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// RemoveDIs: Regardless of the format we've processed this function in, use
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// `WriteNewDbgInfoFormat` to determine which format we use to write it.
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ScopedDbgInfoFormatSetter FormatSetter(F, WriteNewDbgInfoFormat);
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if (isFunctionInPrintList(F.getName())) {
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if (forcePrintModuleIR())
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OS << Banner << " (function: " << F.getName() << ")\n"
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<< *F.getParent();
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else
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OS << Banner << '\n' << static_cast<Value &>(F);
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}
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return false;
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}
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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}
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StringRef getPassName() const override { return "Print Function IR"; }
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};
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} // namespace
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char PrintModulePassWrapper::ID = 0;
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INITIALIZE_PASS(PrintModulePassWrapper, "print-module",
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"Print module to stderr", false, true)
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char PrintFunctionPassWrapper::ID = 0;
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INITIALIZE_PASS(PrintFunctionPassWrapper, "print-function",
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"Print function to stderr", false, true)
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ModulePass *llvm::createPrintModulePass(llvm::raw_ostream &OS,
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const std::string &Banner,
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bool ShouldPreserveUseListOrder) {
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return new PrintModulePassWrapper(OS, Banner, ShouldPreserveUseListOrder);
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}
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FunctionPass *llvm::createPrintFunctionPass(llvm::raw_ostream &OS,
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const std::string &Banner) {
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return new PrintFunctionPassWrapper(OS, Banner);
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}
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bool llvm::isIRPrintingPass(Pass *P) {
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const char *PID = (const char *)P->getPassID();
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return (PID == &PrintModulePassWrapper::ID) ||
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(PID == &PrintFunctionPassWrapper::ID);
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}
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