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//===--------- ScopPass.h - Pass for Static Control Parts --------*-C++ -*-===//
// The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
// This file defines the ScopPass class. ScopPasses are just RegionPasses,
// except they operate on Polly IR (Scop and ScopStmt) built by ScopInfo Pass.
// Because they operate on Polly IR, not the LLVM IR, ScopPasses are not allowed
// to modify the LLVM IR. Due to this limitation, the ScopPass class takes
// care of declaring that no LLVM passes are invalidated.
#include "llvm/Analysis/RegionPass.h"
using namespace llvm;
struct isl_ctx;
namespace polly {
class Scop;
/// ScopPass - This class adapts the RegionPass interface to allow convenient
/// creation of passes that operate on the Polly IR. Instead of overriding
/// runOnRegion, subclasses override runOnScop.
class ScopPass : public RegionPass {
Scop *S;
explicit ScopPass(char &ID) : RegionPass(ID), S(0) {}
/// runOnScop - This method must be overloaded to perform the
/// desired Polyhedral transformation or analysis.
virtual bool runOnScop(Scop &S) = 0;
/// getAnalysisUsage - Subclasses that override getAnalysisUsage
/// must call this.
virtual void getAnalysisUsage(AnalysisUsage &AU) const;
Scop &getCurScop() const {
assert(S && "Not on a Scop!");
return *S;
virtual bool runOnRegion(Region *R, RGPassManager &RGM);
void print(raw_ostream &OS, const Module *) const;
virtual void printScop(raw_ostream &OS) const {}
} // End llvm namespace