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46d58287e3
- MIParser: If the successor list is not specified successors will be added based on basic block operands in the block and possible fallthrough. - MIRPrinter: Adds a new `simplify-mir` option, with that option set: Skip printing of block successor lists in cases where the parser is guaranteed to reconstruct it. This means we still print the list if some successor cannot be determined (happens for example for jump tables), if the successor order changes or branch probabilities being unequal. Differential Revision: https://reviews.llvm.org/D31262 llvm-svn: 302289
73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
//===- MIRPrintingPass.cpp - Pass that prints out using the MIR format ----===//
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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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//
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// This file implements a pass that prints out the LLVM module using the MIR
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// serialization format.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/CodeGen/MIRPrinter.h"
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#include "llvm/CodeGen/Passes.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/MIRYamlMapping.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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/// This pass prints out the LLVM IR to an output stream using the MIR
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/// serialization format.
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struct MIRPrintingPass : public MachineFunctionPass {
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static char ID;
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raw_ostream &OS;
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std::string MachineFunctions;
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MIRPrintingPass() : MachineFunctionPass(ID), OS(dbgs()) {}
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MIRPrintingPass(raw_ostream &OS) : MachineFunctionPass(ID), OS(OS) {}
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StringRef getPassName() const override { return "MIR Printing Pass"; }
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void getAnalysisUsage(AnalysisUsage &AU) const override {
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AU.setPreservesAll();
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MachineFunctionPass::getAnalysisUsage(AU);
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}
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bool runOnMachineFunction(MachineFunction &MF) override {
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std::string Str;
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raw_string_ostream StrOS(Str);
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printMIR(StrOS, MF);
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MachineFunctions.append(StrOS.str());
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return false;
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}
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bool doFinalization(Module &M) override {
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printMIR(OS, M);
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OS << MachineFunctions;
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return false;
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}
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};
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char MIRPrintingPass::ID = 0;
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} // end anonymous namespace
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char &llvm::MIRPrintingPassID = MIRPrintingPass::ID;
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INITIALIZE_PASS(MIRPrintingPass, "mir-printer", "MIR Printer", false, false)
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namespace llvm {
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MachineFunctionPass *createPrintMIRPass(raw_ostream &OS) {
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return new MIRPrintingPass(OS);
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}
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} // end namespace llvm
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