cl::String InputFilename ("", "Parse <arg> file, compile to bytecode",
cl::Required, "");
cl::String OutputFilename("o", "Override output filename", cl::NoFlags, "");
+cl::Flag StopAtLevelRaise("stopraise", "Stop optimization before level raise",
+ cl::Hidden);
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv, " llvm .s -> .o assembler for GCC\n");
Passes.add(createRaiseAllocationsPass()); // call %malloc -> malloc inst
Passes.add(createCleanupGCCOutputPass()); // Fix gccisms
Passes.add(createIndVarSimplifyPass()); // Simplify indvars
- Passes.add(createRaisePointerReferencesPass()); // Eliminate casts
- Passes.add(createConstantMergePass()); // Merge dup global consts
- Passes.add(createInstructionCombiningPass()); // Combine silly seq's
- Passes.add(createDeadCodeEliminationPass()); // Remove Dead code/vars
+ if (!StopAtLevelRaise) {
+ Passes.add(createRaisePointerReferencesPass()); // Eliminate casts
+ Passes.add(createConstantMergePass()); // Merge dup global consts
+ Passes.add(createInstructionCombiningPass()); // Combine silly seq's
+ Passes.add(createDeadCodeEliminationPass()); // Remove Dead code/vars
+ }
Passes.add(new WriteBytecodePass(&Out)); // Write bytecode to file...
// Run our queue of passes all at once now, efficiently.