MustExitScalarEvolution.cpp File Reference

#include "MustExitScalarEvolution.h"
#include "FunctionUtils.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/ScalarEvolution.h"

Include dependency graph for MustExitScalarEvolution.cpp:

Go to the source code of this file.

Macros
#define	SCEVUse   const SCEV *
#define	PROP_PHI(LHS)

Macro Definition Documentation

PROP_PHI

#define PROP_PHI

(

LHS

)

Value:

  if (auto un = dyn_cast<SCEVUnknown>(LHS)) {                                  \
    if (auto pn = dyn_cast_or_null<PHINode>(un->getValue())) {                 \
      const SCEV *sc = nullptr;                                                \
      bool failed = false;                                                     \
      for (auto &a : pn->incoming_values()) {                                  \
        auto subsc = getSCEV(a);                                               \
        if (sc == nullptr) {                                                   \
          sc = subsc;                                                          \
          continue;                                                            \
        }                                                                      \
        if (subsc != sc) {                                                     \
          failed = true;                                                       \
          break;                                                               \
        }                                                                      \
      }                                                                        \
      if (!failed) {                                                           \
        LHS = sc;                                                              \
      }                                                                        \
    }                                                                          \
  }

Referenced by MustExitScalarEvolution::computeExitLimitFromICmp().

SCEVUse

#define SCEVUse   const SCEV *

Definition at line 43 of file MustExitScalarEvolution.cpp.

Referenced by MustExitScalarEvolution::computeExitLimitFromICmp().