| //===-- RISCVInstrInfoZicond.td ----------------------------*- tablegen -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file describes the RISC-V instructions from the standard Integer |
| // Conditional operations extension (Zicond). |
| // This version is still experimental as the 'Zicond' extension hasn't been |
| // ratified yet. It is based on v1.0-rc1 of the specification. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // RISC-V specific DAG Nodes. |
| //===----------------------------------------------------------------------===// |
| |
| def riscv_czero_eqz : SDNode<"RISCVISD::CZERO_EQZ", SDTIntBinOp>; |
| def riscv_czero_nez : SDNode<"RISCVISD::CZERO_NEZ", SDTIntBinOp>; |
| |
| //===----------------------------------------------------------------------===// |
| // Instructions |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [HasStdExtZicond] in { |
| def CZERO_EQZ : ALU_rr<0b0000111, 0b101, "czero.eqz">, |
| Sched<[WriteIALU, ReadIALU, ReadIALU]>; |
| def CZERO_NEZ : ALU_rr<0b0000111, 0b111, "czero.nez">, |
| Sched<[WriteIALU, ReadIALU, ReadIALU]>; |
| } // Predicates = [HasStdExtZicond] |
| |
| //===----------------------------------------------------------------------===// |
| // Pseudo-instructions and codegen patterns |
| //===----------------------------------------------------------------------===// |
| |
| let Predicates = [HasStdExtZicond] in { |
| def : Pat<(XLenVT (riscv_czero_eqz GPR:$rs1, GPR:$rc)), |
| (CZERO_EQZ GPR:$rs1, GPR:$rc)>; |
| def : Pat<(XLenVT (riscv_czero_nez GPR:$rs1, GPR:$rc)), |
| (CZERO_NEZ GPR:$rs1, GPR:$rc)>; |
| } // Predicates = [HasStdExtZicond] |
