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TableGen

//===-- RISCVInstrInfoXVentana.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 vendor extensions defined by Ventana Micro Systems.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// XVentanaCondOps
//===----------------------------------------------------------------------===//
let Predicates = [HasVendorXVentanaCondOps], hasSideEffects = 0,
mayLoad = 0, mayStore = 0, isCodeGenOnly = 0, DecoderNamespace = "XVentana" in
class VTMaskedMove<bits<3> funct3, string opcodestr>
: RVInstR<0b0000000, funct3, OPC_CUSTOM_3, (outs GPR:$rd),
(ins GPR:$rs1, GPR:$rs2), opcodestr,
"$rd, $rs1, $rs2"> {
}
def VT_MASKC : VTMaskedMove<0b110, "vt.maskc">,
Sched<[WriteIALU, ReadIALU, ReadIALU]>;
def VT_MASKCN : VTMaskedMove<0b111, "vt.maskcn">,
Sched<[WriteIALU, ReadIALU, ReadIALU]>;
let Predicates = [HasVendorXVentanaCondOps] in {
def : Pat<(XLenVT (riscv_czero_eqz GPR:$rs1, GPR:$rc)),
(VT_MASKC GPR:$rs1, GPR:$rc)>;
def : Pat<(XLenVT (riscv_czero_nez GPR:$rs1, GPR:$rc)),
(VT_MASKCN GPR:$rs1, GPR:$rc)>;
def : Pat<(XLenVT (riscv_czero_eqz GPR:$rs1, (riscv_setne (XLenVT GPR:$rc)))),
(VT_MASKC GPR:$rs1, GPR:$rc)>;
def : Pat<(XLenVT (riscv_czero_eqz GPR:$rs1, (riscv_seteq (XLenVT GPR:$rc)))),
(VT_MASKCN GPR:$rs1, GPR:$rc)>;
def : Pat<(XLenVT (riscv_czero_nez GPR:$rs1, (riscv_setne (XLenVT GPR:$rc)))),
(VT_MASKCN GPR:$rs1, GPR:$rc)>;
def : Pat<(XLenVT (riscv_czero_nez GPR:$rs1, (riscv_seteq (XLenVT GPR:$rc)))),
(VT_MASKC GPR:$rs1, GPR:$rc)>;
} // Predicates = [HasVendorXVentanaCondOps]