| //===- XtensaInstrInfo.td - Target Description for Xtensa -*- tablegen -*--===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // 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 Xtensa instructions in TableGen format. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| include "XtensaInstrFormats.td" |
| include "XtensaOperands.td" |
| |
| //===----------------------------------------------------------------------===// |
| // Arithmetic & Logical instructions |
| //===----------------------------------------------------------------------===// |
| |
| class ArithLogic_RRR<bits<4> oper2, bits<4> oper1, string instrAsm, |
| SDPatternOperator opNode, bit isComm = 0> |
| : RRR_Inst<0x00, oper1, oper2, (outs AR:$r), (ins AR:$s, AR:$t), |
| instrAsm#"\t$r, $s, $t", |
| [(set AR:$r, (opNode AR:$s, AR:$t))]> { |
| let isCommutable = isComm; |
| let isReMaterializable = 0; |
| } |
| |
| def ADD : ArithLogic_RRR<0x08, 0x00, "add", add, 1>; |
| def SUB : ArithLogic_RRR<0x0C, 0x00, "sub", sub>; |
| def AND : ArithLogic_RRR<0x01, 0x00, "and", and, 1>; |
| def OR : ArithLogic_RRR<0x02, 0x00, "or", or, 1>; |
| def XOR : ArithLogic_RRR<0x03, 0x00, "xor", xor, 1>; |
| |
| class ADDX<bits<4> oper, string instrAsm, list<dag> pattern> |
| : RRR_Inst<0x00, 0x00, oper, (outs AR:$r), (ins AR:$s, AR:$t), |
| instrAsm#"\t$r, $s, $t", pattern>; |
| |
| def ADDX2 : ADDX<0x09, "addx2", [(set AR:$r, (add AR:$t, (shl AR:$s, (i32 1))))]>; |
| def ADDX4 : ADDX<0x0A, "addx4", [(set AR:$r, (add AR:$t, (shl AR:$s, (i32 2))))]>; |
| def ADDX8 : ADDX<0x0B, "addx8", [(set AR:$r, (add AR:$t, (shl AR:$s, (i32 3))))]>; |
| |
| class SUBX<bits<4> oper, string instrAsm, list<dag> pattern> |
| : RRR_Inst<0x00, 0x00, oper, (outs AR:$r), (ins AR:$s, AR:$t), |
| instrAsm#"\t$r, $s, $t", pattern>; |
| |
| def SUBX2 : SUBX<0x0D, "subx2", [(set AR:$r, (sub (shl AR:$s, (i32 1)), AR:$t))]>; |
| def SUBX4 : SUBX<0x0E, "subx4", [(set AR:$r, (sub (shl AR:$s, (i32 2)), AR:$t))]>; |
| def SUBX8 : SUBX<0x0F, "subx8", [(set AR:$r, (sub (shl AR:$s, (i32 3)), AR:$t))]>; |
| |
| def ABS : RRR_Inst<0x00, 0x00, 0x06, (outs AR:$r), (ins AR:$t), |
| "abs\t$r, $t", []> { |
| let s = 0x1; |
| } |
| |
| def ADDI : RRI8_Inst<0x02, (outs AR:$t), (ins AR:$s, imm8:$imm8), |
| "addi\t$t, $s, $imm8", |
| [(set AR:$t, (add AR:$s, imm8:$imm8))]> { |
| let r = 0x0C; |
| } |
| |
| def ADDMI : RRI8_Inst<0x02, (outs AR:$t), (ins AR:$s, imm8_sh8:$imm_sh8), |
| "addmi\t$t, $s, $imm_sh8", |
| [(set AR:$t, (add AR:$s, imm8_sh8:$imm_sh8))]> { |
| bits<16> imm_sh8; |
| |
| let r = 0x0D; |
| let imm8 = imm_sh8{15-8}; |
| } |
| |
| def NEG : RRR_Inst<0x00, 0x00, 0x06, (outs AR:$r), (ins AR:$t), |
| "neg\t$r, $t", |
| [(set AR:$r, (ineg AR:$t))]> { |
| let s = 0x00; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Move instructions |
| //===----------------------------------------------------------------------===// |
| def MOVI : RRI8_Inst<0x02, (outs AR:$t), (ins imm12m:$imm), |
| "movi\t$t, $imm", |
| [(set AR:$t, imm12m:$imm)]> { |
| bits<12> imm; |
| |
| let imm8{7-0} = imm{7-0}; |
| let s{3-0} = imm{11-8}; |
| let r = 0xa; |
| } |
| |
| def MOVEQZ : RRR_Inst<0x00, 0x03, 0x08, (outs AR:$r), (ins AR:$s, AR:$t), |
| "moveqz\t$r, $s, $t", []>; |
| def MOVNEZ : RRR_Inst<0x00, 0x03, 0x09, (outs AR:$r), (ins AR:$s, AR:$t), |
| "movnez\t$r, $s, $t", []>; |
| def MOVLTZ : RRR_Inst<0x00, 0x03, 0x0A, (outs AR:$r), (ins AR:$s, AR:$t), |
| "movltz\t$r, $s, $t", []>; |
| def MOVGEZ : RRR_Inst<0x00, 0x03, 0x0B, (outs AR:$r), (ins AR:$s, AR:$t), |
| "movgez\t$r, $s, $t", []>; |
| |
| //===----------------------------------------------------------------------===// |
| // Shift instructions |
| //===----------------------------------------------------------------------===// |
| |
| let Uses = [SAR] in { |
| def SLL : RRR_Inst<0x00, 0x01, 0x0A, (outs AR:$r), (ins AR:$s), |
| "sll\t$r, $s", []> { |
| let t = 0x00; |
| } |
| |
| def SRA : RRR_Inst<0x00, 0x01, 0x0B, (outs AR:$r), (ins AR:$t), |
| "sra\t$r, $t", []> { |
| let s = 0x00; |
| } |
| |
| def SRC : RRR_Inst<0x00, 0x01, 0x08, (outs AR:$r), (ins AR:$s, AR:$t), |
| "src\t$r, $s, $t", []>; |
| |
| def SRL : RRR_Inst<0x00, 0x01, 0x09, (outs AR:$r), (ins AR:$t), |
| "srl\t$r, $t", []> { |
| let s = 0x00; |
| } |
| } |
| |
| let Defs = [SAR] in { |
| def SSL : RRR_Inst<0x00, 0x00, 0x04, (outs), (ins AR:$s), |
| "ssl\t$s", []> { |
| let r = 0x01; |
| let t = 0x00; |
| } |
| |
| def SSR : RRR_Inst<0x00, 0x00, 0x04, (outs), (ins AR:$s), |
| "ssr\t$s", []> { |
| let r = 0x00; |
| let t = 0x00; |
| } |
| } |
| |
| def EXTUI : RRR_Inst<0x00, 0x04, 0x00, (outs AR:$r), (ins AR:$t, uimm5:$imm1, imm1_16:$imm2), |
| "extui\t$r, $t, $imm1, $imm2", []> { |
| bits<5> imm1; |
| bits<4> imm2; |
| |
| let s = imm1{3-0}; |
| let Inst{16} = imm1{4}; |
| let Inst{23-20} = imm2; |
| } |
| |
| def SRAI : RRR_Inst<0x00, 0x01, 0x02, (outs AR:$r), (ins AR:$t, uimm5:$sa), |
| "srai\t$r, $t, $sa", |
| [(set AR:$r, (sra AR:$t, uimm5:$sa))]> { |
| bits<5> sa; |
| |
| let Inst{20} = sa{4}; |
| let s = sa{3-0}; |
| } |
| |
| def SRLI : RRR_Inst<0x00, 0x01, 0x04, (outs AR:$r), (ins AR:$t, uimm4:$sa), |
| "srli\t$r, $t, $sa", |
| [(set AR:$r, (srl AR:$t, uimm4:$sa))]> { |
| bits<4> sa; |
| |
| let s = sa; |
| } |
| |
| def SLLI : RRR_Inst<0x00, 0x01, 0x00, (outs AR:$r), (ins AR:$s, shimm1_31:$sa), |
| "slli\t$r, $s, $sa", |
| [(set AR:$r, (shl AR:$s, shimm1_31:$sa))]> { |
| bits<5> sa; |
| |
| let Inst{20} = sa{4}; |
| let t = sa{3-0}; |
| } |
| |
| def SSA8L : RRR_Inst<0x00, 0x00, 0x04, (outs), (ins AR:$s), |
| "ssa8l\t$s", []> { |
| let r = 0x2; |
| let t = 0x0; |
| } |
| |
| def SSAI : RRR_Inst<0x00, 0x00, 0x04, (outs), (ins uimm5:$imm), |
| "ssai\t$imm", []> { |
| bits<5> imm; |
| |
| let r = 0x04; |
| let s = imm{3-0}; |
| let t{3-1} = 0; |
| let t{0} = imm{4}; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Load and store instructions |
| //===----------------------------------------------------------------------===// |
| |
| // Load instructions |
| let mayLoad = 1 in { |
| |
| class Load_RRI8<bits<4> oper, string instrAsm, SDPatternOperator opNode, |
| ComplexPattern addrOp, Operand memOp> |
| : RRI8_Inst<0x02, (outs AR:$t), (ins memOp:$addr), |
| instrAsm#"\t$t, $addr", |
| [(set AR:$t, (opNode addrOp:$addr))]> { |
| bits<12> addr; |
| |
| let r = oper; |
| let imm8{7-0} = addr{11-4}; |
| let s{3-0} = addr{3-0}; |
| } |
| } |
| |
| def L8UI : Load_RRI8<0x00, "l8ui", zextloadi8, addr_ish1, mem8>; |
| def L16SI : Load_RRI8<0x09, "l16si", sextloadi16, addr_ish2, mem16>; |
| def L16UI : Load_RRI8<0x01, "l16ui", zextloadi16, addr_ish2, mem16>; |
| def L32I : Load_RRI8<0x02, "l32i", load, addr_ish4, mem32>; |
| |
| // Store instructions |
| let mayStore = 1 in { |
| class Store_II8<bits<4> oper, string instrAsm, SDPatternOperator opNode, |
| ComplexPattern addrOp, Operand memOp> |
| : RRI8_Inst<0x02, (outs), (ins AR:$t, memOp:$addr), |
| instrAsm#"\t$t, $addr", |
| [(opNode AR:$t, addrOp:$addr)]> { |
| bits<12> addr; |
| |
| let r = oper; |
| let imm8{7-0} = addr{11-4}; |
| let s{3-0} = addr{3-0}; |
| } |
| } |
| |
| def S8I : Store_II8<0x04, "s8i", truncstorei8, addr_ish1, mem8>; |
| def S16I : Store_II8<0x05, "s16i", truncstorei16, addr_ish2, mem16>; |
| def S32I : Store_II8<0x06, "s32i", store, addr_ish4, mem32>; |
| |
| def L32R : RI16_Inst<0x01, (outs AR:$t), (ins L32Rtarget:$label), |
| "l32r\t$t, $label", []> { |
| bits<16> label; |
| let imm16 = label; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Conditional branch instructions |
| //===----------------------------------------------------------------------===// |
| let isBranch = 1, isTerminator = 1 in { |
| class Branch_RR<bits<4> oper, string instrAsm, CondCode CC> |
| : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| instrAsm#"\t$s, $t, $target", |
| [(brcc CC, AR:$s, AR:$t, bb:$target)]> { |
| bits<8> target; |
| |
| let r = oper; |
| let imm8 = target; |
| } |
| |
| class Branch_RI<bits<4> oper, string instrAsm, CondCode CC> |
| : RRI8_Inst<0x06, (outs), |
| (ins AR:$s, b4const:$imm, brtarget:$target), |
| instrAsm#"\t$s, $imm, $target", |
| [(brcc CC, AR:$s, b4const:$imm, bb:$target)]> { |
| bits<4> imm; |
| bits<8> target; |
| |
| let t = oper; |
| let r = imm; |
| let imm8 = target; |
| } |
| |
| class Branch_RIU<bits<4> oper, string instrAsm, CondCode CC> |
| : RRI8_Inst<0x06, (outs), |
| (ins AR:$s, b4constu:$imm, brtarget:$target), |
| instrAsm#"\t$s, $imm, $target", |
| [(brcc CC, AR:$s, b4constu:$imm, bb:$target)]> { |
| bits<4> imm; |
| bits<8> target; |
| |
| let t = oper; |
| let r = imm; |
| let imm8 = target; |
| } |
| |
| class Branch_RZ<bits<2> n, bits<2> m, string instrAsm, CondCode CC> |
| : BRI12_Inst<0x06, n, m, (outs), |
| (ins AR:$s, brtarget:$target), |
| instrAsm#"\t$s, $target", |
| [(brcc CC, AR:$s, (i32 0), bb:$target)]> { |
| bits<12> target; |
| |
| let imm12 = target; |
| } |
| } |
| |
| def BEQ : Branch_RR<0x01, "beq", SETEQ>; |
| def BNE : Branch_RR<0x09, "bne", SETNE>; |
| def BGE : Branch_RR<0x0A, "bge", SETGE>; |
| def BLT : Branch_RR<0x02, "blt", SETLT>; |
| def BGEU : Branch_RR<0x0B, "bgeu", SETUGE>; |
| def BLTU : Branch_RR<0x03, "bltu", SETULT>; |
| |
| def BEQI : Branch_RI<0x02, "beqi", SETEQ>; |
| def BNEI : Branch_RI<0x06, "bnei", SETNE>; |
| def BGEI : Branch_RI<0x0E, "bgei", SETGE>; |
| def BLTI : Branch_RI<0x0A, "blti", SETLT>; |
| def BGEUI : Branch_RIU<0x0F, "bgeui", SETUGE>; |
| def BLTUI : Branch_RIU<0x0B, "bltui", SETULT>; |
| |
| def BEQZ : Branch_RZ<0x01, 0x00, "beqz", SETEQ>; |
| def BNEZ : Branch_RZ<0x01, 0x01, "bnez", SETNE>; |
| def BGEZ : Branch_RZ<0x01, 0x03, "bgez", SETGE>; |
| def BLTZ : Branch_RZ<0x01, 0x02, "bltz", SETLT>; |
| |
| def BALL : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "ball\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x04; |
| let imm8 = target; |
| } |
| |
| def BANY : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "bany\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x08; |
| let imm8 = target; |
| } |
| |
| def BBC : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "bbc\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x05; |
| let imm8 = target; |
| } |
| |
| def BBS : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "bbs\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x0d; |
| let imm8 = target; |
| } |
| |
| def BNALL : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "bnall\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x0c; |
| let imm8 = target; |
| } |
| |
| def BNONE : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, AR:$t, brtarget:$target), |
| "bnone\t$s, $t, $target", []> { |
| bits<8> target; |
| |
| let r = 0x00; |
| let imm8 = target; |
| } |
| |
| def BBCI : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, uimm5:$imm, brtarget:$target), |
| "bbci\t$s, $imm, $target", []> { |
| bits<8> target; |
| bits<5> imm; |
| |
| let r{3-1} = 0x3; |
| let r{0} = imm{4}; |
| let t{3-0} = imm{3-0}; |
| let imm8 = target; |
| } |
| |
| def BBSI : RRI8_Inst<0x07, (outs), |
| (ins AR:$s, uimm5:$imm, brtarget:$target), |
| "bbsi\t$s, $imm, $target", []> { |
| bits<8> target; |
| bits<5> imm; |
| |
| let r{3-1} = 0x7; |
| let r{0} = imm{4}; |
| let t{3-0} = imm{3-0}; |
| let imm8 = target; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Call and jump instructions |
| //===----------------------------------------------------------------------===// |
| |
| let isBranch = 1, isTerminator = 1, isBarrier = 1 in { |
| def J : CALL_Inst<0x06, (outs), (ins jumptarget:$offset), |
| "j\t$offset", |
| [(br bb:$offset)]> { |
| let n = 0x0; |
| } |
| |
| def JX : CALLX_Inst<0x00, 0x00, 0x00, (outs), (ins AR:$s), |
| "jx\t$s", |
| [(brind AR:$s)]> { |
| let m = 0x2; |
| let n = 0x2; |
| let r = 0; |
| let isIndirectBranch = 1; |
| } |
| } |
| |
| let isCall = 1, Defs = [A0] in { |
| def CALL0 : CALL_Inst<0x05, (outs), (ins pcrel32call:$offset), |
| "call0\t$offset", []> { |
| let n = 0; |
| } |
| |
| def CALLX0 : CALLX_Inst<0x00, 0x00, 0x00, (outs), (ins AR:$s), |
| "callx0\t$s", []> { |
| let m = 0x3; |
| let n = 0x0; |
| let r = 0; |
| } |
| } |
| |
| let isReturn = 1, isTerminator = 1, |
| isBarrier = 1, Uses = [A0] in { |
| |
| def RET : CALLX_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "ret", []> { |
| let m = 0x2; |
| let n = 0x0; |
| let s = 0; |
| let r = 0; |
| } |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Mem barrier instructions |
| //===----------------------------------------------------------------------===// |
| |
| def MEMW : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "memw", []> { |
| let r = 0x2; |
| let t = 0x0c; |
| let s = 0x0; |
| } |
| |
| def EXTW : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "extw", []> { |
| let r = 0x2; |
| let s = 0x0; |
| let t = 0xd; |
| let hasSideEffects = 1; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Processor control instructions |
| //===----------------------------------------------------------------------===// |
| |
| def DSYNC : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "dsync", []> { |
| let r = 0x2; |
| let s = 0x0; |
| let t = 0x3; |
| let hasSideEffects = 1; |
| } |
| |
| def ISYNC : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "isync", []> { |
| let r = 0x2; |
| let s = 0x0; |
| let t = 0x0; |
| let hasSideEffects = 1; |
| } |
| |
| def RSYNC : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "rsync", []> { |
| let r = 0x2; |
| let s = 0x0; |
| let t = 0x1; |
| let hasSideEffects = 1; |
| } |
| |
| def ESYNC : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "esync", []> { |
| let r = 0x2; |
| let s = 0x0; |
| let t = 0x2; |
| let hasSideEffects = 1; |
| } |
| |
| def NOP : RRR_Inst<0x00, 0x00, 0x00, (outs), (ins), |
| "nop", []> { |
| let r = 0x02; |
| let s = 0x00; |
| let t = 0x0f; |
| } |
| |
| def WSR : RSR_Inst<0x00, 0x03, 0x01, (outs SR:$sr), (ins AR:$t), |
| "wsr\t$t, $sr", []>; |
| |
| def RSR : RSR_Inst<0x00, 0x03, 0x00, (outs AR:$t), (ins SR:$sr), |
| "rsr\t$t, $sr", []>; |
| |
| def XSR : RSR_Inst<0x00, 0x01, 0x06, (outs AR:$ard, SR:$srd), (ins AR:$t, SR:$sr), |
| "xsr\t$t, $sr", []> { |
| let Constraints = "$ard = $t, $srd = $sr"; |
| } |