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Misc cleanups. Allocate ofstream statically, and use a pass to write out the bytecode

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1529 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2002-01-22 03:30:46 +00:00
parent 12f985a1db
commit 3dc67dd95b
1 changed files with 7 additions and 11 deletions
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18
tools/gccas/gccas.cpp
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@ -1,11 +1,11 @@
//===------------------------------------------------------------------------=== //===----------------------------------------------------------------------===//
// LLVM 'GCCAS' UTILITY // LLVM 'GCCAS' UTILITY
// //
// This utility is designed to be used by the GCC frontend for creating // This utility is designed to be used by the GCC frontend for creating
// bytecode files from it's intermediate llvm assembly. The requirements for // bytecode files from it's intermediate llvm assembly. The requirements for
// this utility are thus slightly different than that of the standard as util. // this utility are thus slightly different than that of the standard as util.
// //
//===------------------------------------------------------------------------=== //===----------------------------------------------------------------------===//
#include "llvm/Module.h" #include "llvm/Module.h"
#include "llvm/Assembly/Parser.h" #include "llvm/Assembly/Parser.h"
@ -16,7 +16,7 @@
#include "llvm/Transforms/Scalar/DCE.h" #include "llvm/Transforms/Scalar/DCE.h"
#include "llvm/Transforms/Scalar/IndVarSimplify.h" #include "llvm/Transforms/Scalar/IndVarSimplify.h"
#include "llvm/Transforms/Scalar/InstructionCombining.h" #include "llvm/Transforms/Scalar/InstructionCombining.h"
#include "llvm/Bytecode/Writer.h" #include "llvm/Bytecode/WriteBytecodePass.h"
#include "Support/CommandLine.h" #include "Support/CommandLine.h"
#include <memory> #include <memory>
#include <fstream> #include <fstream>
@ -29,7 +29,6 @@ cl::String OutputFilename("o", "Override output filename", cl::NoFlags, "");
int main(int argc, char **argv) { int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv, " llvm .s -> .o assembler for GCC\n"); cl::ParseCommandLineOptions(argc, argv, " llvm .s -> .o assembler for GCC\n");
ostream *Out = 0;
std::auto_ptr<Module> M; std::auto_ptr<Module> M;
try { try {
// Parse the file now... // Parse the file now...
@ -55,8 +54,8 @@ int main(int argc, char **argv) {
OutputFilename += ".o"; OutputFilename += ".o";
} }
Out = new std::ofstream(OutputFilename.c_str(), ios::out); std::ofstream Out(OutputFilename.c_str(), ios::out);
if (!Out->good()) { if (!Out.good()) {
cerr << "Error opening " << OutputFilename << "!\n"; cerr << "Error opening " << OutputFilename << "!\n";
return 1; return 1;
} }
@ -73,13 +72,10 @@ int main(int argc, char **argv) {
Passes.add(new ConstantMerge()); // Merge dup global consts Passes.add(new ConstantMerge()); // Merge dup global consts
Passes.add(new InstructionCombining()); // Combine silly seq's Passes.add(new InstructionCombining()); // Combine silly seq's
Passes.add(new DeadCodeElimination()); // Remove Dead code/vars Passes.add(new DeadCodeElimination()); // Remove Dead code/vars
Passes.add(new WriteBytecodePass(&Out)); // Write bytecode to file...
// Run our queue of passes all at once now, efficiently. This form of // Run our queue of passes all at once now, efficiently.
// runAllPasses frees the Pass objects after runAllPasses completes.
//
Passes.run(M.get()); Passes.run(M.get());
WriteBytecodeToFile(M.get(), *Out);
return 0; return 0;
} }