Cross Reference: /external/llvm/lib/CodeGen/RegisterCoalescer.cpp

Lines Matching refs:IntB
156     /// hasOtherReachingDefs - Return true if there are definitions of IntB
158     bool hasOtherReachingDefs(LiveInterval &IntA, LiveInterval &IntB,
412 /// being the source and IntB being the dest, thus this defines a value number
413 /// in IntB.  If the source value number (in IntA) is defined by a copy from B,
433   LiveInterval &IntB =
439   LiveInterval::iterator BLR = IntB.FindLiveRangeContaining(CopyIdx);
440   if (BLR == IntB.end()) return false;
455   // If AValNo is defined as a copy from IntB, we can potentially process this.
462   // Get the LiveRange in IntB that this value number starts with.
464     IntB.FindLiveRangeContaining(AValNo->def.getPrevSlot());
465   if (ValLR == IntB.end())
477   // IntB, we can merge them.
480   DEBUG(dbgs() << "Extending: " << PrintReg(IntB.reg, TRI));
491   IntB.addRange(LiveRange(FillerStart, FillerEnd, BValNo));
495     IntB.MergeValueNumberInto(BValNo, ValLR->valno);
496   DEBUG(dbgs() << "   result = " << IntB << '\n');
500   int UIdx = ValLREndInst->findRegisterUseOperandIdx(IntB.reg, true);
508   CopyMI->substituteRegister(IntA.reg, IntB.reg, 0, *TRI);
516 /// hasOtherReachingDefs - Return true if there are definitions of IntB
519                                              LiveInterval &IntB,
522   // If AValNo has PHI kills, conservatively assume that IntB defs can reach
531       std::upper_bound(IntB.ranges.begin(), IntB.ranges.end(), AI->start);
532     if (BI != IntB.ranges.begin())
534     for (; BI != IntB.ranges.end() && AI->end >= BI->start; ++BI) {
547 /// IntA being the source and IntB being the dest, thus this defines a value
548 /// number in IntB.  If the source value number (in IntA) is defined by a
577   LiveInterval &IntB =
582   VNInfo *BValNo = IntB.getVNInfoAt(CopyIdx);
617   if (NewReg != IntB.reg || !LiveRangeQuery(IntB, AValNo->def).isKill())
620   // Make sure there are no other definitions of IntB that would reach the
622   if (hasOtherReachingDefs(IntA, IntB, AValNo, BValNo))
650       TargetRegisterInfo::isVirtualRegister(IntB.reg) &&
651       !MRI->constrainRegClass(IntB.reg, MRI->getRegClass(IntA.reg)))
671   // Update uses of IntA of the specific Val# with IntB.
697     if (UseMI->getOperand(0).getReg() != IntB.reg ||
704     VNInfo *DVNI = IntB.getVNInfoAt(DefIdx);
709     BValNo = IntB.MergeValueNumberInto(BValNo, DVNI);
722     IntB.addRange(LiveRange(AI->start, AI->end, ValNo));
724   DEBUG(dbgs() << "\t\textended: " << IntB << '\n');