Transforms/Scalar/LoopFuse.cpp

286       LLVM_DEBUG(dbgs() << "FC has invalid CFG requirements!\n");
404                                      const FusionCandidate &FC) {
405   if (FC.isValid())
406     OS << FC.Preheader->getName();
415   for (const FusionCandidate &FC : CandSet)
416     OS << FC << '\n';
1078   /// Check that the guard for \p FC *only* contains the cmp/branch for the
1083   bool isEmptyGuardBlock(const FusionCandidate &FC) const {
1084     assert(FC.GuardBranch && "Expecting a fusion candidate with guard branch.");
1085     if (auto *CmpInst = dyn_cast<Instruction>(FC.GuardBranch->getCondition())) {
1086       auto *GuardBlock = FC.GuardBranch->getParent();
1100   bool isEmptyPreheader(const FusionCandidate &FC) const {
1101     assert(FC.Preheader && "Expecting a valid preheader");
1102     return FC.Preheader->size() == 1;
1105   bool isEmptyExitBlock(const FusionCandidate &FC) const {
1106     assert(FC.ExitBlock && "Expecting a valid exit block");
1107     return FC.ExitBlock->size() == 1;
1110   /// Simplify the condition of the latch branch of \p FC to true, when both of
1112   void simplifyLatchBranch(const FusionCandidate &FC) const {
1113     BranchInst *FCLatchBranch = dyn_cast<BranchInst>(FC.Latch->getTerminator());