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https://github.com/RPCS3/llvm-mirror.git
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*** empty log message ***
llvm-svn: 811
This commit is contained in:
Vikram S. Adve
parent
9f4d1bcb25
commit
dc3f0d62c7
@ -1,6 +1,6 @@
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LEVEL = ../..
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TOOLNAME = llc
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USEDLIBS = sparc regalloc sched select sparc regalloc sched select target opt livevar bcreader vmcore asmwriter analysis support
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USEDLIBS = sparc regalloc sched select sparc regalloc sched select target opt instrument livevar bcreader vmcore asmwriter analysis support
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include $(LEVEL)/Makefile.common
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@ -8,16 +8,24 @@
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#include "llvm/Optimizations/Normalize.h"
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#include "llvm/Target/Sparc.h"
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#include "llvm/Target/TargetMachine.h"
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#include "llvm/Transforms/Instrumentation/TraceValues.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Module.h"
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#include "llvm/Method.h"
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#include <memory>
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#include <string>
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#include <fstream>
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cl::String InputFilename ("", "Input filename", cl::NoFlags, "-");
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cl::String OutputFilename("o", "Output filename", cl::NoFlags, "");
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cl::Flag Force ("f", "Overwrite output files", cl::NoFlags, false);
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cl::Flag DumpAsm ("d", "Print assembly as compiled", cl::Hidden, false);
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cl::Flag DumpAsm ("d", "Print bytecode before native code generation", cl::Hidden,false);
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cl::Flag DoNotEmitAssembly("noasm", "Do not emit assembly code", cl::Hidden, false);
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cl::Flag TraceBBValues ("trace",
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"Trace values at basic block and method exits",
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cl::NoFlags, false);
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cl::Flag TraceMethodValues("tracem", "Trace values only at method exits",
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cl::NoFlags, false);
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#include "llvm/Assembly/Writer.h" // For DumpAsm
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@ -139,46 +147,134 @@ static void NormalizeMethod(Method *M) {
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NormalizePhiConstantArgs(M);
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}
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inline string
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GetFileNameRoot(const string& InputFilename)
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{
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string IFN = InputFilename;
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string outputFilename;
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int Len = IFN.length();
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if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c') {
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outputFilename = string(IFN.begin(), IFN.end()-3); // s/.bc/.s/
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} else {
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outputFilename = IFN; // Append a .s to it
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}
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return outputFilename;
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}
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inline string
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GetTraceAssemblyFileName(const string& inFilename)
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{
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assert(inFilename != "-" && "files on stdin not supported with tracing");
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string traceFileName = GetFileNameRoot(inFilename);
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traceFileName += ".trace.ll";
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return traceFileName;
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}
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//===---------------------------------------------------------------------===//
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// Function main()
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// Function PreprocessModule()
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//
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// Entry point for the llc compiler.
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// Normalization to simplify later passes.
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//===---------------------------------------------------------------------===//
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int main(int argc, char **argv) {
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// Parse command line options...
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cl::ParseCommandLineOptions(argc, argv, " llvm system compiler\n");
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// Allocate a target... in the future this will be controllable on the
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// command line.
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auto_ptr<TargetMachine> Target(allocateSparcTargetMachine());
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// Load the module to be compiled...
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auto_ptr<Module> M(ParseBytecodeFile(InputFilename));
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if (M.get() == 0) {
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cerr << "bytecode didn't read correctly.\n";
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return 1;
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}
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InsertMallocFreeDecls(M.get());
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// Loop over all of the methods in the module, compiling them.
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for (Module::const_iterator MI = M->begin(), ME = M->end(); MI != ME; ++MI) {
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Method *Meth = *MI;
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NormalizeMethod(Meth);
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ReplaceMallocFree(Meth, Target->DataLayout);
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if (DumpAsm)
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cerr << "Method after xformations: \n" << Meth;
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if (Target->compileMethod(Meth)) {
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cerr << "Error compiling " << InputFilename << "!\n";
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return 1;
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}
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}
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int
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PreprocessModule(Module* module)
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{
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InsertMallocFreeDecls(module);
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for (Module::const_iterator MI=module->begin(); MI != module->end(); ++MI)
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if (! (*MI)->isExternal())
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NormalizeMethod(*MI);
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return 0;
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}
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//===---------------------------------------------------------------------===//
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// Function OptimizeModule()
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//
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// Module optimization.
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//===---------------------------------------------------------------------===//
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int
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OptimizeModule(Module* module)
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{
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return 0;
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}
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//===---------------------------------------------------------------------===//
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// Function GenerateCodeForModule()
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//
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// Native code generation for a specified target.
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//===---------------------------------------------------------------------===//
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int
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GenerateCodeForModule(Module* module, TargetMachine* target)
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{
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// Since any transformation pass may introduce external function decls
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// into the method list, find current methods first and then walk only those.
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//
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vector<Method*> initialMethods(module->begin(), module->end());
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// Replace malloc and free instructions with library calls
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//
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for (unsigned i=0, N = initialMethods.size(); i < N; i++)
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if (! initialMethods[i]->isExternal())
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ReplaceMallocFree(initialMethods[i], target->DataLayout);
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// Insert trace code to assist debugging
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//
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if (TraceBBValues || TraceMethodValues)
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{
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// Insert trace code in all methods in the module
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for (unsigned i=0, N = initialMethods.size(); i < N; i++)
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if (! initialMethods[i]->isExternal())
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InsertCodeToTraceValues(initialMethods[i], TraceBBValues,
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TraceBBValues || TraceMethodValues);
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// Then write the module with tracing code out in assembly form
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string traceFileName = GetTraceAssemblyFileName(InputFilename);
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ofstream* ofs = new ofstream(traceFileName.c_str(),
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(Force ? 0 : ios::noreplace)|ios::out);
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if (!ofs->good()) {
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cerr << "Error opening " << traceFileName << "!\n";
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delete ofs;
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return 1;
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}
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WriteToAssembly(module, *ofs);
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delete ofs;
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}
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// Generate native target code for all methods
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//
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for (unsigned i=0, N = initialMethods.size(); i < N; i++)
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if (! initialMethods[i]->isExternal())
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{
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if (DumpAsm)
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cerr << "Method after xformations: \n" << initialMethods[i];
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if (target->compileMethod(initialMethods[i])) {
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cerr << "Error compiling " << InputFilename << "!\n";
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return 1;
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}
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}
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return 0;
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}
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//===---------------------------------------------------------------------===//
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// Function EmitAssemblyForModule()
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//
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// Write assembly code to specified output file; <ModuleName>.s by default.
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//===---------------------------------------------------------------------===//
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int
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EmitAssemblyForModule(Module* module, TargetMachine* target)
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{
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// Figure out where we are going to send the output...
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ostream *Out = 0;
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if (OutputFilename != "") { // Specified an output filename?
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@ -189,13 +285,7 @@ int main(int argc, char **argv) {
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OutputFilename = "-";
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Out = &cout;
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} else {
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string IFN = InputFilename;
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int Len = IFN.length();
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if (IFN[Len-3] == '.' && IFN[Len-2] == 'b' && IFN[Len-1] == 'c') {
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OutputFilename = string(IFN.begin(), IFN.end()-3); // s/.bc/.s/
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} else {
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OutputFilename = IFN; // Append a .s to it
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}
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string OutputFilename = GetFileNameRoot(InputFilename);
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OutputFilename += ".s";
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Out = new ofstream(OutputFilename.c_str(),
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(Force ? 0 : ios::noreplace)|ios::out);
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@ -208,10 +298,48 @@ int main(int argc, char **argv) {
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}
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// Emit the output...
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Target->emitAssembly(M.get(), *Out);
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target->emitAssembly(module, *Out);
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if (Out != &cout) delete Out;
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return 0;
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}
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//===---------------------------------------------------------------------===//
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// Function main()
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//
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// Entry point for the llc compiler.
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//===---------------------------------------------------------------------===//
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int
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main(int argc, char **argv)
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{
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// Parse command line options...
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cl::ParseCommandLineOptions(argc, argv, " llvm system compiler\n");
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// Allocate a target... in the future this will be controllable on the
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// command line.
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auto_ptr<TargetMachine> target(allocateSparcTargetMachine());
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// Load the module to be compiled...
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auto_ptr<Module> M(ParseBytecodeFile(InputFilename));
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if (M.get() == 0) {
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cerr << "bytecode didn't read correctly.\n";
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return 1;
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}
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int failed = PreprocessModule(M.get());
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if (!failed)
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failed = OptimizeModule(M.get());
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if (!failed)
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failed = GenerateCodeForModule(M.get(), target.get());
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if (!failed && ! DoNotEmitAssembly)
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failed = EmitAssemblyForModule(M.get(), target.get());
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return failed;
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}
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