mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-09-14 04:57:33 +00:00
56e1394c88
directory. These passes are already defined in the IR library, and it doesn't make any sense to have the headers in Analysis. Long term, I think there is going to be a much better way to divide these matters. The dominators code should be fully separated into the abstract graph algorithm and have that put in Support where it becomes obvious that evn Clang's CFGBlock's can use it. Then the verifier can manually construct dominance information from the Support-driven interface while the Analysis library can provide a pass which both caches, reconstructs, and supports a nice update API. But those are very long term, and so I don't want to leave the really confusing structure until that day arrives. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199082 91177308-0d34-0410-b5e6-96231b3b80d8
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
//===- llvm-link.cpp - Low-level LLVM linker ------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This utility may be invoked in the following manner:
|
|
// llvm-link a.bc b.bc c.bc -o x.bc
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Linker.h"
|
|
#include "llvm/Bitcode/ReaderWriter.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/IR/Verifier.h"
|
|
#include "llvm/IRReader/IRReader.h"
|
|
#include "llvm/Support/CommandLine.h"
|
|
#include "llvm/Support/ManagedStatic.h"
|
|
#include "llvm/Support/Path.h"
|
|
#include "llvm/Support/PrettyStackTrace.h"
|
|
#include "llvm/Support/Signals.h"
|
|
#include "llvm/Support/SourceMgr.h"
|
|
#include "llvm/Support/SystemUtils.h"
|
|
#include "llvm/Support/ToolOutputFile.h"
|
|
#include <memory>
|
|
using namespace llvm;
|
|
|
|
static cl::list<std::string>
|
|
InputFilenames(cl::Positional, cl::OneOrMore,
|
|
cl::desc("<input bitcode files>"));
|
|
|
|
static cl::opt<std::string>
|
|
OutputFilename("o", cl::desc("Override output filename"), cl::init("-"),
|
|
cl::value_desc("filename"));
|
|
|
|
static cl::opt<bool>
|
|
Force("f", cl::desc("Enable binary output on terminals"));
|
|
|
|
static cl::opt<bool>
|
|
OutputAssembly("S",
|
|
cl::desc("Write output as LLVM assembly"), cl::Hidden);
|
|
|
|
static cl::opt<bool>
|
|
Verbose("v", cl::desc("Print information about actions taken"));
|
|
|
|
static cl::opt<bool>
|
|
DumpAsm("d", cl::desc("Print assembly as linked"), cl::Hidden);
|
|
|
|
// LoadFile - Read the specified bitcode file in and return it. This routine
|
|
// searches the link path for the specified file to try to find it...
|
|
//
|
|
static inline Module *LoadFile(const char *argv0, const std::string &FN,
|
|
LLVMContext& Context) {
|
|
SMDiagnostic Err;
|
|
if (Verbose) errs() << "Loading '" << FN << "'\n";
|
|
Module* Result = 0;
|
|
|
|
Result = ParseIRFile(FN, Err, Context);
|
|
if (Result) return Result; // Load successful!
|
|
|
|
Err.print(argv0, errs());
|
|
return NULL;
|
|
}
|
|
|
|
int main(int argc, char **argv) {
|
|
// Print a stack trace if we signal out.
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
PrettyStackTraceProgram X(argc, argv);
|
|
|
|
LLVMContext &Context = getGlobalContext();
|
|
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
|
|
cl::ParseCommandLineOptions(argc, argv, "llvm linker\n");
|
|
|
|
unsigned BaseArg = 0;
|
|
std::string ErrorMessage;
|
|
|
|
OwningPtr<Module> Composite(LoadFile(argv[0],
|
|
InputFilenames[BaseArg], Context));
|
|
if (Composite.get() == 0) {
|
|
errs() << argv[0] << ": error loading file '"
|
|
<< InputFilenames[BaseArg] << "'\n";
|
|
return 1;
|
|
}
|
|
|
|
Linker L(Composite.get());
|
|
for (unsigned i = BaseArg+1; i < InputFilenames.size(); ++i) {
|
|
OwningPtr<Module> M(LoadFile(argv[0], InputFilenames[i], Context));
|
|
if (M.get() == 0) {
|
|
errs() << argv[0] << ": error loading file '" <<InputFilenames[i]<< "'\n";
|
|
return 1;
|
|
}
|
|
|
|
if (Verbose) errs() << "Linking in '" << InputFilenames[i] << "'\n";
|
|
|
|
if (L.linkInModule(M.get(), &ErrorMessage)) {
|
|
errs() << argv[0] << ": link error in '" << InputFilenames[i]
|
|
<< "': " << ErrorMessage << "\n";
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
if (DumpAsm) errs() << "Here's the assembly:\n" << *Composite;
|
|
|
|
std::string ErrorInfo;
|
|
tool_output_file Out(OutputFilename.c_str(), ErrorInfo, sys::fs::F_Binary);
|
|
if (!ErrorInfo.empty()) {
|
|
errs() << ErrorInfo << '\n';
|
|
return 1;
|
|
}
|
|
|
|
if (verifyModule(*Composite)) {
|
|
errs() << argv[0] << ": linked module is broken!\n";
|
|
return 1;
|
|
}
|
|
|
|
if (Verbose) errs() << "Writing bitcode...\n";
|
|
if (OutputAssembly) {
|
|
Out.os() << *Composite;
|
|
} else if (Force || !CheckBitcodeOutputToConsole(Out.os(), true))
|
|
WriteBitcodeToFile(Composite.get(), Out.os());
|
|
|
|
// Declare success.
|
|
Out.keep();
|
|
|
|
return 0;
|
|
}
|