Lines Matching defs:VPST

203       // VPT/VPST + 4 predicated instructions.
215   // VPT/VPST and has a maximum of four proceeding instructions. All
263     // Is the VPST, controlling the block entry, predicated upon a VCTP.
276              "Expected VPT block to begin with VPT/VPST");
336                "Expected VPT block to start with a VPST or VPT!");
1214     //    the VPT block because we don't find another VPT or VPST to being a new
1598       MachineInstr *VPST = Insts.front();
1600         // A vpt block starting with VPST, is only predicated upon vctp and has no
1604         LLVM_DEBUG(dbgs() << "ARM Loops: Removing VPST: " << *VPST);
1625         for (auto I = ++MachineBasicBlock::iterator(VPST), E = DivergentNext;
1630         // with the VPST This should be the divergent instruction
1635           // Insert a VPST at the divergent only if the next instruction
1636           // would actually use it. A VCMP following a VPST can be
1639             // Create a VPST (with a null mask for now, we'll recompute it
1645             LLVM_DEBUG(dbgs() << "ARM Loops: Created VPST: " << *MIB);
1648             // No RDA checks are necessary here since the VPST would have been
1654       LLVM_DEBUG(dbgs() << "ARM Loops: Removing VPST: " << *VPST);
1655       LoLoop.ToRemove.insert(VPST);
1659       MachineInstr *VPST = Insts.front();
1661         assert(VPST->getOpcode() == ARM::MVE_VPST &&
1662                "Found a VPST in an otherwise empty vpt block");
1663         LoLoop.ToRemove.insert(VPST);
1665         LoLoop.BlockMasksToRecompute.insert(VPST);
1667       // If this block starts with a VPST then attempt to merge it with the
1670       MachineInstr *VPST = Insts.front();
1671       auto Next = ++MachineBasicBlock::iterator(VPST);
1673              "The instruction after a VPST must be predicated");
1675       MachineInstr *VprDef = RDA->getUniqueReachingMIDef(VPST, ARM::VPR);
1679         // The VCMP and VPST can only be merged if the VCMP's operands will have
1680         // the same values at the VPST.
1681         // If any of the instructions between the VCMP and VPST are predicated
1683         // VPST already.
1685                          MachineBasicBlock::iterator(VPST), hasVPRUse) &&
1686             RDA->hasSameReachingDef(VCMP, VPST, VCMP->getOperand(1).getReg()) &&
1687             RDA->hasSameReachingDef(VCMP, VPST, VCMP->getOperand(2).getReg())) {
1688           ReplaceVCMPWithVPT(VCMP, VPST);
1689           LLVM_DEBUG(dbgs() << "ARM Loops: Removing VPST: " << *VPST);
1690           LoLoop.ToRemove.insert(VPST);
1784       LLVM_DEBUG(dbgs() << "ARM Loops: Recomputing VPT/VPST Block Mask: " << *I);