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Move LTO support library to a component, allowing it to be tested

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more reliably across platforms.  Patch by Tom Roeder!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191343 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Peter Collingbourne
2013-09-24 23:52:22 +00:00
parent 85509802eb
commit cc48854d5d
20 changed files with 136 additions and 59 deletions
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49
tools/llvm-lto/llvm-lto.cpp
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@@ -12,12 +12,14 @@
//
//===----------------------------------------------------------------------===//
#include "llvm-c/lto.h"
#include "llvm/LTO/LTOCodeGenerator.h"
#include "llvm/LTO/LTOModule.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/TargetSelect.h"
using namespace llvm;
@@ -37,46 +39,48 @@ int main(int argc, char **argv) {
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv, "llvm LTO linker\n");
// Initialize the configured targets.
InitializeAllTargets();
InitializeAllTargetMCs();
InitializeAllAsmPrinters();
InitializeAllAsmParsers();
unsigned BaseArg = 0;
std::string ErrorMessage;
lto_code_gen_t code_gen = lto_codegen_create();
if (code_gen == NULL)
errs() << argv[0] << ": error creating a code generation module: "
<< lto_get_error_message() << "\n";
LTOCodeGenerator CodeGen;
lto_codegen_set_pic_model(code_gen, LTO_CODEGEN_PIC_MODEL_DYNAMIC);
lto_codegen_set_debug_model(code_gen, LTO_DEBUG_MODEL_DWARF);
CodeGen.setCodePICModel(LTO_CODEGEN_PIC_MODEL_DYNAMIC);
CodeGen.setDebugInfo(LTO_DEBUG_MODEL_DWARF);
for (unsigned i = BaseArg; i < InputFilenames.size(); ++i) {
lto_module_t BitcodeModule = lto_module_create(InputFilenames[i].c_str());
if (BitcodeModule == NULL) {
std::string error;
OwningPtr<LTOModule> Module(LTOModule::makeLTOModule(InputFilenames[i].c_str(),
error));
if (!error.empty()) {
errs() << argv[0] << ": error loading file '" << InputFilenames[i]
<< "': " << lto_get_error_message() << "\n";
<< "': " << error << "\n";
return 1;
}
if (lto_codegen_add_module(code_gen, BitcodeModule)) {
if (!CodeGen.addModule(Module.get(), error)) {
errs() << argv[0] << ": error adding file '" << InputFilenames[i]
<< "': " << lto_get_error_message() << "\n";
lto_module_dispose(BitcodeModule);
<< "': " << error << "\n";
return 1;
}
lto_module_dispose(BitcodeModule);
}
if (!OutputFilename.empty()) {
size_t len = 0;
const void *Code = lto_codegen_compile(code_gen, &len);
std::string ErrorInfo;
const void *Code = CodeGen.compile(&len, ErrorInfo);
if (Code == NULL) {
errs() << argv[0]
<< ": error compiling the code: " << lto_get_error_message()
<< "\n";
<< ": error compiling the code: " << ErrorInfo << "\n";
return 1;
}
std::string ErrorInfo;
raw_fd_ostream FileStream(OutputFilename.c_str(), ErrorInfo);
if (!ErrorInfo.empty()) {
errs() << argv[0] << ": error opening the file '" << OutputFilename
@@ -86,10 +90,11 @@ int main(int argc, char **argv) {
FileStream.write(reinterpret_cast<const char *>(Code), len);
} else {
std::string ErrorInfo;
const char *OutputName = NULL;
if (lto_codegen_compile_to_file(code_gen, &OutputName)) {
if (!CodeGen.compile_to_file(&OutputName, ErrorInfo)) {
errs() << argv[0]
<< ": error compiling the code: " << lto_get_error_message()
<< ": error compiling the code: " << ErrorInfo
<< "\n";
return 1;
}
@@ -97,7 +102,5 @@ int main(int argc, char **argv) {
outs() << "Wrote native object file '" << OutputName << "'\n";
}
lto_codegen_dispose(code_gen);
return 0;
}