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Reid Kleckner
05da2fe521
This file lists every pass in LLVM, and is included by Pass.h, which is very popular. Every time we add, remove, or rename a pass in LLVM, it caused lots of recompilation. I found this fact by looking at this table, which is sorted by the number of times a file was changed over the last 100,000 git commits multiplied by the number of object files that depend on it in the current checkout: recompiles touches affected_files header 342380 95 3604 llvm/include/llvm/ADT/STLExtras.h 314730 234 1345 llvm/include/llvm/InitializePasses.h 307036 118 2602 llvm/include/llvm/ADT/APInt.h 213049 59 3611 llvm/include/llvm/Support/MathExtras.h 170422 47 3626 llvm/include/llvm/Support/Compiler.h 162225 45 3605 llvm/include/llvm/ADT/Optional.h 158319 63 2513 llvm/include/llvm/ADT/Triple.h 140322 39 3598 llvm/include/llvm/ADT/StringRef.h 137647 59 2333 llvm/include/llvm/Support/Error.h 131619 73 1803 llvm/include/llvm/Support/FileSystem.h Before this change, touching InitializePasses.h would cause 1345 files to recompile. After this change, touching it only causes 550 compiles in an incremental rebuild. Reviewers: bkramer, asbirlea, bollu, jdoerfert Differential Revision: https://reviews.llvm.org/D70211
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
//===-- MachineFunctionPrinterPass.cpp ------------------------------------===//
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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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// MachineFunctionPrinterPass implementation.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MachineFunction.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/SlotIndexes.h"
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#include "llvm/IR/IRPrintingPasses.h"
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#include "llvm/InitializePasses.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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namespace {
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/// MachineFunctionPrinterPass - This is a pass to dump the IR of a
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/// MachineFunction.
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///
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struct MachineFunctionPrinterPass : public MachineFunctionPass {
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static char ID;
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raw_ostream &OS;
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const std::string Banner;
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MachineFunctionPrinterPass() : MachineFunctionPass(ID), OS(dbgs()) { }
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MachineFunctionPrinterPass(raw_ostream &os, const std::string &banner)
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: MachineFunctionPass(ID), OS(os), Banner(banner) {}
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StringRef getPassName() const override { return "MachineFunction Printer"; }
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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AU.addUsedIfAvailable<SlotIndexes>();
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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bool runOnMachineFunction(MachineFunction &MF) override {
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if (!llvm::isFunctionInPrintList(MF.getName()))
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return false;
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OS << "# " << Banner << ":\n";
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MF.print(OS, getAnalysisIfAvailable<SlotIndexes>());
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return false;
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}
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};
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char MachineFunctionPrinterPass::ID = 0;
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}
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char &llvm::MachineFunctionPrinterPassID = MachineFunctionPrinterPass::ID;
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INITIALIZE_PASS(MachineFunctionPrinterPass, "machineinstr-printer",
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"Machine Function Printer", false, false)
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namespace llvm {
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/// Returns a newly-created MachineFunction Printer pass. The
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/// default banner is empty.
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///
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MachineFunctionPass *createMachineFunctionPrinterPass(raw_ostream &OS,
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const std::string &Banner){
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return new MachineFunctionPrinterPass(OS, Banner);
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}
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}
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