1 //===-- MSP430InstrInfo.cpp - MSP430 Instruction Information --------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
41   if (MI != MBB.end()) DL = MI->getDebugLoc();  in storeRegToStackSlot()
59     llvm_unreachable("Cannot store this register to stack slot!");  in storeRegToStackSlot()
69   if (MI != MBB.end()) DL = MI->getDebugLoc();  in loadRegFromStackSlot()
87     llvm_unreachable("Cannot store this register to stack slot!");  in loadRegFromStackSlot()
100     llvm_unreachable("Impossible reg-to-reg copy");  in copyPhysReg()
114     --I;  in removeBranch()
115     if (I->isDebugInstr())  in removeBranch()
117     if (I->getOpcode() != MSP430::JMP &&  in removeBranch()
118         I->getOpcode() != MSP430::JCC &&  in removeBranch()
119         I->getOpcode() != MSP430::Bi &&  in removeBranch()
120         I->getOpcode() != MSP430::Br &&  in removeBranch()
121         I->getOpcode() != MSP430::Bm)  in removeBranch()
124     I->eraseFromParent();  in removeBranch()
173     --I;  in analyzeBranch()
174     if (I->isDebugInstr())  in analyzeBranch()
177     // Working from the bottom, when we see a non-terminator  in analyzeBranch()
184     if (!I->isBranch())  in analyzeBranch()
188     if (I->getOpcode() == MSP430::Br ||  in analyzeBranch()
189         I->getOpcode() == MSP430::Bm)  in analyzeBranch()
193     if (I->getOpcode() == MSP430::JMP || I->getOpcode() == MSP430::Bi) {  in analyzeBranch()
195         TBB = I->getOperand(0).getMBB();  in analyzeBranch()
204       // Delete the JMP if it's equivalent to a fall-through.  in analyzeBranch()
205       if (MBB.isLayoutSuccessor(I->getOperand(0).getMBB())) {  in analyzeBranch()
207         I->eraseFromParent();  in analyzeBranch()
213       TBB = I->getOperand(0).getMBB();  in analyzeBranch()
217     // Handle conditional branches.  in analyzeBranch()
218     assert(I->getOpcode() == MSP430::JCC && "Invalid conditional branch");  in analyzeBranch()
220       static_cast<MSP430CC::CondCodes>(I->getOperand(1).getImm());  in analyzeBranch()
224     // Working from the bottom, handle the first conditional branch.  in analyzeBranch()
227       TBB = I->getOperand(0).getMBB();  in analyzeBranch()
232     // Handle subsequent conditional branches. Only handle the case where all  in analyzeBranch()
233     // conditional branches branch to the same destination.  in analyzeBranch()
237     // Only handle the case where all conditional branches branch to  in analyzeBranch()
239     if (TBB != I->getOperand(0).getMBB())  in analyzeBranch()
272   // Conditional branch.  in insertBranch()
278     // Two-way Conditional branch. Insert the second branch.  in insertBranch()
285 /// GetInstSize - Return the number of bytes of code the specified
300     const MachineFunction *MF = MI.getParent()->getParent();  in getInstSizeInBytes()
301     const TargetInstrInfo &TII = *MF->getSubtarget().getInstrInfo();  in getInstSizeInBytes()
303                                   *MF->getTarget().getMCAsmInfo());  in getInstSizeInBytes()