forked from OSchip/llvm-project
Trace code should always be exported just before code generation;
this is not a debugging option. But we can export it as assembly instead of bytecode if -debugtrace is specified. llvm-svn: 889
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@ -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 instrument livevar bcreader vmcore asmwriter analysis support transforms
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USEDLIBS = sparc regalloc sched select sparc regalloc sched select target opt instrument livevar bcreader bcwriter vmcore asmwriter analysis support transforms
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include $(LEVEL)/Makefile.common
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@ -27,9 +27,8 @@ cl::Flag DoNotEmitAssembly("noasm", "Do not emit assembly code", cl::Hidden);
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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::Flag TraceMethodValues("tracem", "Trace values only at method exits");
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cl::Flag DebugTrace ("dumptrace",
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"output trace code to a <fn>.trace.ll file",
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cl::Hidden);
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cl::Flag DebugTrace ("debugtrace",
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"output trace code as assembly instead of bytecode");
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// GetFileNameRoot - Helper function to get the basename of a filename...
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@ -104,6 +103,7 @@ public:
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//===---------------------------------------------------------------------===//
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int main(int argc, char **argv) {
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int retCode = 0;
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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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@ -130,30 +130,33 @@ int main(int argc, char **argv) {
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Passes.push_back(new HoistPHIConstants());
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if (TraceBBValues || TraceMethodValues) // If tracing enabled...
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// Insert trace code in all methods in the module
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Passes.push_back(new InsertTraceCode(TraceBBValues,
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TraceBBValues || TraceMethodValues));
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if (DebugTrace) { // If Trace Debugging is enabled...
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// Then write the module with tracing code out in assembly form
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assert(InputFilename != "-" && "files on stdin not supported with tracing");
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string traceFileName = GetFileNameRoot(InputFilename) + ".trace.ll";
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ostream *os = new ofstream(traceFileName.c_str(),
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(Force ? 0 : ios::noreplace)|ios::out);
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if (!os->good()) {
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cerr << "Error opening " << traceFileName << "!\n";
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delete os;
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return 1;
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{
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// Insert trace code in all methods in the module
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Passes.push_back(new InsertTraceCode(TraceBBValues,
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TraceBBValues ||TraceMethodValues));
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// Then write out the module with tracing code before code generation
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assert(InputFilename != "-" &&
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"files on stdin not supported with tracing");
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string traceFileName = GetFileNameRoot(InputFilename)
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+ (DebugTrace? ".trace.ll" : ".trace.bc");
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ostream *os = new ofstream(traceFileName.c_str(),
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(Force ? 0 : ios::noreplace)|ios::out);
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if (!os->good()) {
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cerr << "Error opening " << traceFileName
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<< "! SKIPPING OUTPUT OF TRACE CODE\n";
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delete os;
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retCode = 1;
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}
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Passes.push_back(new PrintModulePass("", os,
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/*deleteStream*/ true,
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/*printAsBytecode*/ ! DebugTrace));
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}
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Passes.push_back(new PrintModulePass("", os, true));
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}
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// If LLVM dumping after transformations is requested, add it to the pipeline
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if (DumpAsm)
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Passes.push_back(new PrintModulePass("Method after xformations: \n",&cerr));
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Passes.push_back(new PrintModulePass("Code after xformations: \n",&cerr));
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// Generate Target code...
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Passes.push_back(new GenerateCodeForTarget(Target));
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@ -189,7 +192,7 @@ int main(int argc, char **argv) {
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// runAllPasses frees the Pass objects after runAllPasses completes.
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Pass::runAllPassesAndFree(M.get(), Passes);
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return 0;
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return retCode;
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}
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