1 //===- ARCBranchFinalize.cpp - ARC conditional branches ---------*- C++ -*-===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
25 #define DEBUG_TYPE "arc-branch-finalize"
47     return "ARC Branch Finalization Pass";  in getPassName()
62 INITIALIZE_PASS_BEGIN(ARCBranchFinalize, "arc-branch-finalize",
63                       "ARC finalize branches", false, false)
65 INITIALIZE_PASS_END(ARCBranchFinalize, "arc-branch-finalize",  in INITIALIZE_PASS_DEPENDENCY()
66                     "ARC finalize branches", false, false)  in INITIALIZE_PASS_DEPENDENCY()
70 // EQ -- 000  in INITIALIZE_PASS_DEPENDENCY()
71 // NE -- 001  in INITIALIZE_PASS_DEPENDENCY()
72 // LT -- 010  in INITIALIZE_PASS_DEPENDENCY()
73 // GE -- 011  in INITIALIZE_PASS_DEPENDENCY()
74 // LO -- 100  in INITIALIZE_PASS_DEPENDENCY()
75 // HS -- 101  in INITIALIZE_PASS_DEPENDENCY()
88   case ARCCC::HS:  in INITIALIZE_PASS_DEPENDENCY()
91     return -1U;  in INITIALIZE_PASS_DEPENDENCY()
96   return !(MI->getOpcode() != ARC::BRcc_rr_p &&  in isBRccPseudo()
97            MI->getOpcode() != ARC::BRcc_ru6_p);  in isBRccPseudo()
102   if (MI->getOpcode() == ARC::BRcc_rr_p)  in getBRccForPseudo()
103     return ARC::BRcc_rr;  in getBRccForPseudo()
104   return ARC::BRcc_ru6;  in getBRccForPseudo()
109   if (MI->getOpcode() == ARC::BRcc_rr_p)  in getCmpForPseudo()
110     return ARC::CMP_rr;  in getCmpForPseudo()
111   return ARC::CMP_ru6;  in getCmpForPseudo()
116   unsigned CC = getCCForBRcc(MI->getOperand(3).getImm());  in replaceWithBRcc()
117   if (CC != -1U) {  in replaceWithBRcc()
118     BuildMI(*MI->getParent(), MI, MI->getDebugLoc(),  in replaceWithBRcc()
119             TII->get(getBRccForPseudo(MI)))  in replaceWithBRcc()
120         .addMBB(MI->getOperand(0).getMBB())  in replaceWithBRcc()
121         .addReg(MI->getOperand(1).getReg())  in replaceWithBRcc()
122         .add(MI->getOperand(2))  in replaceWithBRcc()
123         .addImm(getCCForBRcc(MI->getOperand(3).getImm()));  in replaceWithBRcc()
124     MI->eraseFromParent();  in replaceWithBRcc()
133   BuildMI(*MI->getParent(), MI, MI->getDebugLoc(),  in replaceWithCmpBcc()
134           TII->get(getCmpForPseudo(MI)))  in replaceWithCmpBcc()
135       .addReg(MI->getOperand(1).getReg())  in replaceWithCmpBcc()
136       .add(MI->getOperand(2));  in replaceWithCmpBcc()
137   BuildMI(*MI->getParent(), MI, MI->getDebugLoc(), TII->get(ARC::Bcc))  in replaceWithCmpBcc()
138       .addMBB(MI->getOperand(0).getMBB())  in replaceWithCmpBcc()
139       .addImm(MI->getOperand(3).getImm());  in replaceWithCmpBcc()
140   MI->eraseFromParent();  in replaceWithCmpBcc()
144   LLVM_DEBUG(dbgs() << "Running ARC Branch Finalize on " << MF.getName()  in runOnMachineFunction()
157       unsigned Size = TII->getInstSizeInBytes(MI);  in runOnMachineFunction()