mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-23 17:29:19 +00:00
into their new header subdirectory: include/llvm/IR. This matches the directory structure of lib, and begins to correct a long standing point of file layout clutter in LLVM. There are still more header files to move here, but I wanted to handle them in separate commits to make tracking what files make sense at each layer easier. The only really questionable files here are the target intrinsic tablegen files. But that's a battle I'd rather not fight today. I've updated both CMake and Makefile build systems (I think, and my tests think, but I may have missed something). I've also re-sorted the includes throughout the project. I'll be committing updates to Clang, DragonEgg, and Polly momentarily. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171366 91177308-0d34-0410-b5e6-96231b3b80d8
192 lines
5.8 KiB
C++
192 lines
5.8 KiB
C++
//===-- llvm-dis.cpp - The low-level LLVM disassembler --------------------===//
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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 utility may be invoked in the following manner:
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// llvm-dis [options] - Read LLVM bitcode from stdin, write asm to stdout
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// llvm-dis [options] x.bc - Read LLVM bitcode from the x.bc file, write asm
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// to the x.ll file.
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// Options:
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// --help - Output information about command line switches
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/Assembly/AssemblyAnnotationWriter.h"
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#include "llvm/Bitcode/ReaderWriter.h"
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#include "llvm/DebugInfo.h"
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#include "llvm/IR/IntrinsicInst.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Type.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/DataStream.h"
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#include "llvm/Support/FormattedStream.h"
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#include "llvm/Support/ManagedStatic.h"
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#include "llvm/Support/MemoryBuffer.h"
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#include "llvm/Support/PrettyStackTrace.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/ToolOutputFile.h"
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#include "llvm/Support/system_error.h"
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using namespace llvm;
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static cl::opt<std::string>
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InputFilename(cl::Positional, cl::desc("<input bitcode>"), cl::init("-"));
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static cl::opt<std::string>
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OutputFilename("o", cl::desc("Override output filename"),
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cl::value_desc("filename"));
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static cl::opt<bool>
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Force("f", cl::desc("Enable binary output on terminals"));
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static cl::opt<bool>
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DontPrint("disable-output", cl::desc("Don't output the .ll file"), cl::Hidden);
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static cl::opt<bool>
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ShowAnnotations("show-annotations",
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cl::desc("Add informational comments to the .ll file"));
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namespace {
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static void printDebugLoc(const DebugLoc &DL, formatted_raw_ostream &OS) {
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OS << DL.getLine() << ":" << DL.getCol();
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if (MDNode *N = DL.getInlinedAt(getGlobalContext())) {
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DebugLoc IDL = DebugLoc::getFromDILocation(N);
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if (!IDL.isUnknown()) {
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OS << "@";
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printDebugLoc(IDL,OS);
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}
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}
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}
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class CommentWriter : public AssemblyAnnotationWriter {
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public:
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void emitFunctionAnnot(const Function *F,
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formatted_raw_ostream &OS) {
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OS << "; [#uses=" << F->getNumUses() << ']'; // Output # uses
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OS << '\n';
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}
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void printInfoComment(const Value &V, formatted_raw_ostream &OS) {
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bool Padded = false;
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if (!V.getType()->isVoidTy()) {
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OS.PadToColumn(50);
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Padded = true;
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OS << "; [#uses=" << V.getNumUses() << " type=" << *V.getType() << "]"; // Output # uses and type
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}
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if (const Instruction *I = dyn_cast<Instruction>(&V)) {
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const DebugLoc &DL = I->getDebugLoc();
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if (!DL.isUnknown()) {
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if (!Padded) {
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OS.PadToColumn(50);
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Padded = true;
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OS << ";";
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}
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OS << " [debug line = ";
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printDebugLoc(DL,OS);
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OS << "]";
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}
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if (const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I)) {
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DIVariable Var(DDI->getVariable());
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if (!Padded) {
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OS.PadToColumn(50);
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OS << ";";
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}
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OS << " [debug variable = " << Var.getName() << "]";
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}
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else if (const DbgValueInst *DVI = dyn_cast<DbgValueInst>(I)) {
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DIVariable Var(DVI->getVariable());
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if (!Padded) {
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OS.PadToColumn(50);
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OS << ";";
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}
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OS << " [debug variable = " << Var.getName() << "]";
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}
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}
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}
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};
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} // end anon namespace
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int main(int argc, char **argv) {
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// Print a stack trace if we signal out.
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sys::PrintStackTraceOnErrorSignal();
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PrettyStackTraceProgram X(argc, argv);
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LLVMContext &Context = getGlobalContext();
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llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
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cl::ParseCommandLineOptions(argc, argv, "llvm .bc -> .ll disassembler\n");
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std::string ErrorMessage;
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std::auto_ptr<Module> M;
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// Use the bitcode streaming interface
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DataStreamer *streamer = getDataFileStreamer(InputFilename, &ErrorMessage);
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if (streamer) {
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std::string DisplayFilename;
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if (InputFilename == "-")
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DisplayFilename = "<stdin>";
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else
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DisplayFilename = InputFilename;
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M.reset(getStreamedBitcodeModule(DisplayFilename, streamer, Context,
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&ErrorMessage));
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if(M.get() != 0 && M->MaterializeAllPermanently(&ErrorMessage)) {
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M.reset();
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}
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}
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if (M.get() == 0) {
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errs() << argv[0] << ": ";
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if (ErrorMessage.size())
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errs() << ErrorMessage << "\n";
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else
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errs() << "bitcode didn't read correctly.\n";
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return 1;
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}
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// Just use stdout. We won't actually print anything on it.
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if (DontPrint)
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OutputFilename = "-";
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if (OutputFilename.empty()) { // Unspecified output, infer it.
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if (InputFilename == "-") {
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OutputFilename = "-";
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} else {
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const std::string &IFN = InputFilename;
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int Len = IFN.length();
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// If the source ends in .bc, strip it off.
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if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c')
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OutputFilename = std::string(IFN.begin(), IFN.end()-3)+".ll";
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else
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OutputFilename = IFN+".ll";
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}
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}
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std::string ErrorInfo;
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OwningPtr<tool_output_file>
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Out(new tool_output_file(OutputFilename.c_str(), ErrorInfo,
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raw_fd_ostream::F_Binary));
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if (!ErrorInfo.empty()) {
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errs() << ErrorInfo << '\n';
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return 1;
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}
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OwningPtr<AssemblyAnnotationWriter> Annotator;
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if (ShowAnnotations)
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Annotator.reset(new CommentWriter());
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// All that llvm-dis does is write the assembly to a file.
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if (!DontPrint)
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M->print(Out->os(), Annotator.get());
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// Declare success.
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Out->keep();
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return 0;
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}
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