void polly::registerCanonicalicationPasses(llvm::legacy::PassManagerBase &PM) {
PM.add(llvm::createPromoteMemoryToRegisterPass());
PM.add(llvm::createInstructionCombiningPass());
PM.add(llvm::createCFGSimplificationPass());
PM.add(llvm::createTailCallEliminationPass());
PM.add(llvm::createCFGSimplificationPass());
PM.add(llvm::createReassociatePass());
PM.add(llvm::createLoopRotatePass());
PM.add(llvm::createInstructionCombiningPass());
PM.add(llvm::createIndVarSimplifyPass());
PM.add(polly::createCodePreparationPass());
}
/// @brief Register Polly passes such that they form a polyhedral optimizer.
///
/// The individual Polly passes are registered in the pass manager such that
/// they form a full polyhedral optimizer. The flow of the optimizer starts with
/// a set of preparing transformations that canonicalize the LLVM-IR such that
/// the LLVM-IR is easier for us to understand and to optimizes. On the
/// canonicalized LLVM-IR we first run the ScopDetection pass, which detects
/// static control flow regions. Those regions are then translated by the
/// ScopInfo pass into a polyhedral representation. As a next step, a scheduling
/// optimizer is run on the polyhedral representation and finally the optimized
/// polyhedral representation is code generated back to LLVM-IR.
///
/// Besides this core functionality, we optionally schedule passes that provide
/// a graphical view of the scops (Polly[Only]Viewer, Polly[Only]Printer), that
/// allow the export/import of the polyhedral representation
/// (JSCON[Exporter|Importer]) or that show the cfg after code generation.
///
/// For certain parts of the Polly optimizer, several alternatives are provided:
///
/// As scheduling optimizer we support the isl scheduling optimizer
/// (http://freecode.com/projects/isl).
/// It is also possible to run Polly with no optimizer. This mode is mainly
/// provided to analyze the run and compile time changes caused by the
/// scheduling optimizer.
///
/// Polly supports the isl internal code generator.
void registerPollyPasses(llvm::legacy::PassManagerBase &PM) {
registerCanonicalicationPasses(PM);
PM.add(polly::createScopDetectionPass());
if (PollyDetectOnly)
return;
PM.add(polly::createScopInfoPass());
if (PollyViewer)
PM.add(polly::createDOTViewerPass());
if (PollyOnlyViewer)
PM.add(polly::createDOTOnlyViewerPass());
if (PollyPrinter)
PM.add(polly::createDOTPrinterPass());
if (PollyOnlyPrinter)
PM.add(polly::createDOTOnlyPrinterPass());
if (ImportJScop)
PM.add(polly::createJSONImporterPass());
if (DeadCodeElim)
PM.add(polly::createDeadCodeElimPass());
switch (Optimizer) {
case OPTIMIZER_NONE:
break; /* Do nothing */
case OPTIMIZER_ISL:
PM.add(polly::createIslScheduleOptimizerPass());
break;
}
if (ExportJScop)
PM.add(polly::createJSONExporterPass());
switch (PollyCodeGenChoice) {
case CODEGEN_ISL:
PM.add(polly::createIslCodeGenerationPass());
break;
case CODEGEN_NONE:
break;
}
if (CFGPrinter)
PM.add(llvm::createCFGPrinterPass());
}
static void registerSouperPass(
const llvm::PassManagerBuilder &Builder, llvm::legacy::PassManagerBase &PM) {
PM.add(new SouperPass);
}
void registerArcherPasses(llvm::legacy::PassManagerBase &PM) {
PM.add(createInstrumentParallelPass());
}