forked from OSchip/llvm-project
124 lines
3.0 KiB
TableGen
124 lines
3.0 KiB
TableGen
//===-- BPFInstrFormats.td - BPF Instruction Formats -------*- 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
class BPFOpClass<bits<3> val> {
|
|
bits<3> Value = val;
|
|
}
|
|
|
|
def BPF_LD : BPFOpClass<0x0>;
|
|
def BPF_LDX : BPFOpClass<0x1>;
|
|
def BPF_ST : BPFOpClass<0x2>;
|
|
def BPF_STX : BPFOpClass<0x3>;
|
|
def BPF_ALU : BPFOpClass<0x4>;
|
|
def BPF_JMP : BPFOpClass<0x5>;
|
|
def BPF_JMP32 : BPFOpClass<0x6>;
|
|
def BPF_ALU64 : BPFOpClass<0x7>;
|
|
|
|
class BPFSrcType<bits<1> val> {
|
|
bits<1> Value = val;
|
|
}
|
|
|
|
def BPF_K : BPFSrcType<0x0>;
|
|
def BPF_X : BPFSrcType<0x1>;
|
|
|
|
class BPFArithOp<bits<4> val> {
|
|
bits<4> Value = val;
|
|
}
|
|
|
|
def BPF_ADD : BPFArithOp<0x0>;
|
|
def BPF_SUB : BPFArithOp<0x1>;
|
|
def BPF_MUL : BPFArithOp<0x2>;
|
|
def BPF_DIV : BPFArithOp<0x3>;
|
|
def BPF_OR : BPFArithOp<0x4>;
|
|
def BPF_AND : BPFArithOp<0x5>;
|
|
def BPF_LSH : BPFArithOp<0x6>;
|
|
def BPF_RSH : BPFArithOp<0x7>;
|
|
def BPF_NEG : BPFArithOp<0x8>;
|
|
def BPF_XOR : BPFArithOp<0xa>;
|
|
def BPF_MOV : BPFArithOp<0xb>;
|
|
def BPF_ARSH : BPFArithOp<0xc>;
|
|
def BPF_END : BPFArithOp<0xd>;
|
|
|
|
def BPF_XCHG : BPFArithOp<0xe>;
|
|
def BPF_CMPXCHG : BPFArithOp<0xf>;
|
|
|
|
class BPFEndDir<bits<1> val> {
|
|
bits<1> Value = val;
|
|
}
|
|
|
|
def BPF_TO_LE : BPFSrcType<0x0>;
|
|
def BPF_TO_BE : BPFSrcType<0x1>;
|
|
|
|
class BPFJumpOp<bits<4> val> {
|
|
bits<4> Value = val;
|
|
}
|
|
|
|
def BPF_JA : BPFJumpOp<0x0>;
|
|
def BPF_JEQ : BPFJumpOp<0x1>;
|
|
def BPF_JGT : BPFJumpOp<0x2>;
|
|
def BPF_JGE : BPFJumpOp<0x3>;
|
|
def BPF_JNE : BPFJumpOp<0x5>;
|
|
def BPF_JSGT : BPFJumpOp<0x6>;
|
|
def BPF_JSGE : BPFJumpOp<0x7>;
|
|
def BPF_CALL : BPFJumpOp<0x8>;
|
|
def BPF_EXIT : BPFJumpOp<0x9>;
|
|
def BPF_JLT : BPFJumpOp<0xa>;
|
|
def BPF_JLE : BPFJumpOp<0xb>;
|
|
def BPF_JSLT : BPFJumpOp<0xc>;
|
|
def BPF_JSLE : BPFJumpOp<0xd>;
|
|
|
|
class BPFWidthModifer<bits<2> val> {
|
|
bits<2> Value = val;
|
|
}
|
|
|
|
def BPF_W : BPFWidthModifer<0x0>;
|
|
def BPF_H : BPFWidthModifer<0x1>;
|
|
def BPF_B : BPFWidthModifer<0x2>;
|
|
def BPF_DW : BPFWidthModifer<0x3>;
|
|
|
|
class BPFModeModifer<bits<3> val> {
|
|
bits<3> Value = val;
|
|
}
|
|
|
|
def BPF_IMM : BPFModeModifer<0x0>;
|
|
def BPF_ABS : BPFModeModifer<0x1>;
|
|
def BPF_IND : BPFModeModifer<0x2>;
|
|
def BPF_MEM : BPFModeModifer<0x3>;
|
|
def BPF_ATOMIC : BPFModeModifer<0x6>;
|
|
|
|
class BPFAtomicFlag<bits<4> val> {
|
|
bits<4> Value = val;
|
|
}
|
|
|
|
def BPF_FETCH : BPFAtomicFlag<0x1>;
|
|
|
|
class InstBPF<dag outs, dag ins, string asmstr, list<dag> pattern>
|
|
: Instruction {
|
|
field bits<64> Inst;
|
|
field bits<64> SoftFail = 0;
|
|
let Size = 8;
|
|
|
|
let Namespace = "BPF";
|
|
let DecoderNamespace = "BPF";
|
|
|
|
BPFOpClass BPFClass;
|
|
let Inst{58-56} = BPFClass.Value;
|
|
|
|
dag OutOperandList = outs;
|
|
dag InOperandList = ins;
|
|
let AsmString = asmstr;
|
|
let Pattern = pattern;
|
|
}
|
|
|
|
// Pseudo instructions
|
|
class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
|
|
: InstBPF<outs, ins, asmstr, pattern> {
|
|
let Inst{63-0} = 0;
|
|
let isPseudo = 1;
|
|
}
|