1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-24 03:33:20 +01:00
llvm-mirror/lib/Target/Lanai/LanaiInstrInfo.td
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

886 lines
31 KiB
TableGen

//===-- LanaiInstrInfo.td - Target Description for Lanai Target -----------===//
//
// 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 Lanai instructions in TableGen format.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Instruction format superclass
//===----------------------------------------------------------------------===//
include "LanaiInstrFormats.td"
// -------------------------------------------------- //
// Instruction Operands and Patterns
// -------------------------------------------------- //
// These are target-independent nodes, but have target-specific formats.
def SDT_LanaiCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>,
SDTCisVT<1, i32>]>;
def SDT_LanaiCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>,
SDTCisVT<1, i32>]>;
def SDT_LanaiCall : SDTypeProfile<0, -1, [SDTCisVT<0, i32>]>;
def SDT_LanaiSetFlag : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
def SDT_LanaiSelectCC : SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>,
SDTCisSameAs<1, 2>]>;
def SDT_LanaiSetCC : SDTypeProfile<1, 1, [SDTCisVT<0, i32>,
SDTCisVT<1, i32>]>;
def SDT_LanaiBrCC : SDTypeProfile<0, 2, [SDTCisVT<0, OtherVT>,
SDTCisVT<1, i32>]>;
def SDT_LanaiAdjDynAlloc : SDTypeProfile<1, 1, [SDTCisVT<0, i32>,
SDTCisVT<1, i32>]>;
def Call : SDNode<"LanaiISD::CALL", SDT_LanaiCall,
[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue,
SDNPVariadic]>;
def RetFlag : SDNode<"LanaiISD::RET_FLAG", SDTNone,
[SDNPHasChain, SDNPOptInGlue, SDNPVariadic]>;
def CallSeqStart : SDNode<"ISD::CALLSEQ_START", SDT_LanaiCallSeqStart,
[SDNPHasChain, SDNPOutGlue]>;
def CallSeqEnd : SDNode<"ISD::CALLSEQ_END", SDT_LanaiCallSeqEnd,
[SDNPHasChain, SDNPOptInGlue, SDNPOutGlue]>;
def LanaiSetFlag : SDNode<"LanaiISD::SET_FLAG", SDT_LanaiSetFlag,
[SDNPOutGlue]>;
def LanaiSubbF : SDNode<"LanaiISD::SUBBF", SDT_LanaiSetFlag,
[SDNPOutGlue, SDNPInGlue]>;
def LanaiBrCC : SDNode<"LanaiISD::BR_CC", SDT_LanaiBrCC,
[SDNPHasChain, SDNPInGlue]>;
def LanaiSelectCC : SDNode<"LanaiISD::SELECT_CC", SDT_LanaiSelectCC,
[SDNPInGlue]>;
def LanaiSetCC : SDNode<"LanaiISD::SETCC", SDT_LanaiSetCC,
[SDNPInGlue]>;
def LanaiHi : SDNode<"LanaiISD::HI", SDTIntUnaryOp>;
def LanaiLo : SDNode<"LanaiISD::LO", SDTIntUnaryOp>;
def LanaiSmall : SDNode<"LanaiISD::SMALL", SDTIntUnaryOp>;
def LanaiAdjDynAlloc : SDNode<"LanaiISD::ADJDYNALLOC", SDT_LanaiAdjDynAlloc>;
// Extract bits 0-15 (low-end) of an immediate value.
def LO16 : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant((uint64_t)N->getZExtValue() & 0xffff,
SDLoc(N), MVT::i32);
}]>;
// Extract bits 16-31 (high-end) of an immediate value.
// Transformation function: shift the immediate value down into the low bits.
def HI16 : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant((uint64_t)N->getZExtValue() >> 16, SDLoc(N),
MVT::i32);
}]>;
def NEG : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant(-N->getSExtValue(), SDLoc(N), MVT::i32);
}]>;
def LO21 : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant((uint64_t)N->getZExtValue() & 0x1fffff,
SDLoc(N), MVT::i32);
}]>;
// Branch targets
def BrTargetAsmOperand : AsmOperandClass {
let Name = "BrTarget";
}
def BrTarget : Operand<OtherVT> {
let ParserMatchClass = BrTargetAsmOperand;
let EncoderMethod = "getBranchTargetOpValue";
let DecoderMethod = "decodeBranch";
}
def CallTargetAsmOperand : AsmOperandClass {
let Name = "CallTarget";
}
def CallTarget : Operand<i32> {
let ParserMatchClass = CallTargetAsmOperand;
let EncoderMethod = "getBranchTargetOpValue";
let DecoderMethod = "decodeBranch";
}
def ImmShiftAsmOperand : AsmOperandClass { let Name = "ImmShift"; }
def immShift : Operand<i32>, PatLeaf<(imm), [{
int Imm = N->getSExtValue();
return Imm >= -31 && Imm <= 31;}]> {
let ParserMatchClass = ImmShiftAsmOperand;
let DecoderMethod = "decodeShiftImm";
}
def Imm10AsmOperand : AsmOperandClass { let Name = "Imm10"; }
def imm10 : Operand<i32>, PatLeaf<(imm), [{
return isInt<10>(N->getSExtValue()); }]> {
let ParserMatchClass = Imm10AsmOperand;
}
def LoImm16AsmOperand : AsmOperandClass { let Name = "LoImm16"; }
def i32lo16z : Operand<i32>, PatLeaf<(i32 imm), [{
// i32lo16 predicate - true if the 32-bit immediate has only rightmost 16
// bits set.
return ((N->getZExtValue() & 0xFFFFUL) == N->getZExtValue());}], LO16> {
let ParserMatchClass = LoImm16AsmOperand;
}
def i32neg16 : Operand<i32>, PatLeaf<(i32 imm), [{
// i32neg16 predicate - true if the 32-bit immediate is negative and can
// be represented by a 16 bit integer.
int Imm = N->getSExtValue();
return (Imm < 0) && (isInt<16>(Imm));}], LO16> {
let ParserMatchClass = LoImm16AsmOperand;
}
def i32lo16s : Operand<i32>, PatLeaf<(i32 imm), [{
// i32lo16 predicate - true if the 32-bit immediate has only rightmost 16
// bits set.
return ((int64_t)(N->getSExtValue() & 0xFFFFUL) == N->getSExtValue());}], LO16> {
let ParserMatchClass = LoImm16AsmOperand;
}
def LoImm16AndAsmOperand : AsmOperandClass { let Name = "LoImm16And"; }
def i32lo16and : Operand<i32>, PatLeaf<(i32 imm), [{
// i32lo16 predicate - true if the 32-bit immediate has the rightmost 16
// bits set and the leftmost 16 bits 1's.
return (N->getZExtValue() >= 0xFFFF0000UL);}], LO16> {
let ParserMatchClass = LoImm16AndAsmOperand;
let PrintMethod = "printLo16AndImmOperand";
}
def HiImm16AsmOperand : AsmOperandClass { let Name = "HiImm16"; }
def i32hi16 : Operand<i32>, PatLeaf<(i32 imm), [{
// i32hi16 predicate - true if the 32-bit immediate has only leftmost 16
// bits set.
return ((N->getZExtValue() & 0xFFFF0000UL) == N->getZExtValue());}], HI16> {
let ParserMatchClass = HiImm16AsmOperand;
let PrintMethod = "printHi16ImmOperand";
}
def HiImm16AndAsmOperand : AsmOperandClass { let Name = "HiImm16And"; }
def i32hi16and : Operand<i32>, PatLeaf<(i32 imm), [{
// i32lo16 predicate - true if the 32-bit immediate has the leftmost 16
// bits set and the rightmost 16 bits 1's.
return ((N->getZExtValue() & 0xFFFFUL) == 0xFFFFUL);}], HI16> {
let ParserMatchClass = HiImm16AndAsmOperand;
let PrintMethod = "printHi16AndImmOperand";
}
def LoImm21AsmOperand : AsmOperandClass { let Name = "LoImm21"; }
def i32lo21 : Operand<i32>, PatLeaf<(i32 imm), [{
// i32lo21 predicate - true if the 32-bit immediate has only rightmost 21
// bits set.
return ((N->getZExtValue() & 0x1FFFFFUL) == N->getZExtValue());}], LO21> {
let ParserMatchClass = LoImm21AsmOperand;
}
def AluOp : Operand<i32> {
let PrintMethod = "printAluOperand";
}
// Addressing modes.
def ADDRrr : ComplexPattern<i32, 3, "selectAddrRr", [], []>;
def ADDRri : ComplexPattern<i32, 3, "selectAddrRi", [frameindex], []>;
def ADDRsls : ComplexPattern<i32, 1, "selectAddrSls", [frameindex], []>;
def ADDRspls : ComplexPattern<i32, 3, "selectAddrSpls", [frameindex], []>;
// Address operands
def MemRegImmAsmOperand : AsmOperandClass {
let Name = "MemRegImm";
let ParserMethod = "parseMemoryOperand";
}
def MEMri : Operand<i32> {
let DecoderMethod = "decodeRiMemoryValue";
let EncoderMethod = "getRiMemoryOpValue";
let MIOperandInfo = (ops GPR:$base, i32lo16s:$offset, AluOp:$Opcode);
let ParserMatchClass = MemRegImmAsmOperand;
let PrintMethod = "printMemRiOperand";
}
def MemRegRegAsmOperand : AsmOperandClass {
let Name = "MemRegReg";
let ParserMethod = "parseMemoryOperand";
}
def MEMrr : Operand<i32> {
let DecoderMethod = "decodeRrMemoryValue";
let EncoderMethod = "getRrMemoryOpValue";
let MIOperandInfo = (ops GPR:$Op1, GPR:$Op2, AluOp:$Opcode);
let ParserMatchClass = MemRegRegAsmOperand;
let PrintMethod = "printMemRrOperand";
}
def MemImmAsmOperand : AsmOperandClass {
let Name = "MemImm";
let ParserMethod = "parseMemoryOperand";
}
def MEMi : Operand<i32> {
let MIOperandInfo = (ops i32lo21:$offset);
let ParserMatchClass = MemImmAsmOperand;
let PrintMethod = "printMemImmOperand";
}
def MemSplsAsmOperand : AsmOperandClass {
let Name = "MemSpls";
let ParserMethod = "parseMemoryOperand";
}
def MEMspls : Operand<i32> {
let DecoderMethod = "decodeSplsValue";
let EncoderMethod = "getSplsOpValue";
let MIOperandInfo = (ops GPR:$base, imm10:$offset, AluOp:$Opcode);
let ParserMatchClass = MemSplsAsmOperand;
let PrintMethod = "printMemSplsOperand";
}
def CCOp : Operand<i32> {
let PrintMethod = "printCCOperand";
}
// Predicate operand. Default to 0 = true.
def CondCodeOperand : AsmOperandClass { let Name = "CondCode"; }
def pred : PredicateOperand<i32, (ops i32imm), (ops (i32 0))> {
let PrintMethod = "printPredicateOperand";
let ParserMatchClass = CondCodeOperand;
let DecoderMethod = "decodePredicateOperand";
}
let hasSideEffects = 0, Inst = 0x00000001 in
def NOP : InstLanai<(outs), (ins), "nop", []>;
// Special NOPs to change logging level in vlanai.
let hasSideEffects = 0, Inst = 0x00000002 in
def LOG0 : InstLanai<(outs), (ins), "log_0", []>;
let hasSideEffects = 0, Inst = 0x00000003 in
def LOG1 : InstLanai<(outs), (ins), "log_1", []>;
let hasSideEffects = 0, Inst = 0x00000004 in
def LOG2 : InstLanai<(outs), (ins), "log_2", []>;
let hasSideEffects = 0, Inst = 0x00000005 in
def LOG3 : InstLanai<(outs), (ins), "log_3", []>;
let hasSideEffects = 0, Inst = 0x00000006 in
def LOG4 : InstLanai<(outs), (ins), "log_4", []>;
// Map an SPLS instruction onto itself. All other instructions will be mapped
// onto -1. Used to identify SPLS instructions.
def splsIdempotent : InstrMapping {
let FilterClass = "InstSPLS";
let RowFields = ["AsmString"];
let ColFields = ["PostEncoderMethod"];
let KeyCol = ["adjustPqBitsSpls"];
let ValueCols = [["adjustPqBitsSpls"]];
}
// -------------------------------------------------- //
// ALU instructions
// -------------------------------------------------- //
multiclass ALUbase<bits<3> subOp, string AsmStr, SDNode OpNode,
PatLeaf LoExt, PatLeaf HiExt,
list<dag> loPattern, list<dag> hiPattern> {
// Register Immediate
let H = 0 in
def LO : InstRI<subOp, (outs GPR:$Rd), (ins GPR:$Rs1, LoExt:$imm16),
!strconcat(AsmStr, "\t$Rs1, $imm16, $Rd"),
loPattern>;
let H = 1 in
def HI : InstRI<subOp, (outs GPR:$Rd), (ins GPR:$Rs1, HiExt:$imm16),
!strconcat(AsmStr, "\t$Rs1, $imm16, $Rd"),
hiPattern>;
}
multiclass ALUarith<bits<3> subOp, string AsmStr, SDNode OpNode,
PatLeaf LoExt, PatLeaf HiExt> {
defm I_ : ALUbase<subOp, AsmStr, OpNode, LoExt, HiExt, [], []>;
// Register Register
let JJJJJ = 0 in
def R : InstRR<subOp, (outs GPR:$Rd), (ins GPR:$Rs1, GPR:$Rs2, pred:$DDDI),
!strconcat(AsmStr, "$DDDI\t$Rs1, $Rs2, $Rd"),
[(set GPR:$Rd, (OpNode GPR:$Rs1, GPR:$Rs2))]>;
}
multiclass ALUlogic<bits<3> subOp, string AsmStr, SDNode OpNode,
PatLeaf LoExt, PatLeaf HiExt> {
defm I_ : ALUbase<subOp, AsmStr, OpNode, LoExt, HiExt,
[(set GPR:$Rd, (OpNode GPR:$Rs1, LoExt:$imm16))],
[(set GPR:$Rd, (OpNode GPR:$Rs1, HiExt:$imm16))]>;
// Register Register
let JJJJJ = 0 in
def R : InstRR<subOp, (outs GPR:$Rd), (ins GPR:$Rs1, GPR:$Rs2, pred:$DDDI),
!strconcat(AsmStr, "$DDDI\t$Rs1, $Rs2, $Rd"),
[(set GPR:$Rd, (OpNode GPR:$Rs1, GPR:$Rs2))]>;
}
// Non flag setting ALU operations
let isAsCheapAsAMove = 1, F = 0 in {
let isCommutable = 1 in {
defm ADD_ : ALUarith<0b000, "add", add, i32lo16z, i32hi16>;
}
defm SUB_ : ALUarith<0b010, "sub", sub, i32lo16z, i32hi16>;
let isCommutable = 1 in {
defm AND_ : ALUlogic<0b100, "and", and, i32lo16and, i32hi16and>;
defm OR_ : ALUlogic<0b101, "or", or, i32lo16z, i32hi16>;
defm XOR_ : ALUlogic<0b110, "xor", xor, i32lo16z, i32hi16>;
}
}
def : Pat<(add GPR:$Rs1, i32lo16z:$imm),
(ADD_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(sub GPR:$Rs1, i32lo16z:$imm),
(SUB_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(add GPR:$Rs1, i32hi16:$imm),
(ADD_I_HI GPR:$Rs1, i32hi16:$imm)>;
def : Pat<(sub GPR:$Rs1, i32hi16:$imm),
(SUB_I_HI GPR:$Rs1, i32hi16:$imm)>;
def : Pat<(i32 i32lo16and:$imm), (AND_I_LO (i32 R1), i32lo16and:$imm)>;
def : Pat<(i32 i32hi16and:$imm), (AND_I_HI (i32 R1), i32hi16and:$imm)>;
// Change add/sub with negative number to sub/add
def : Pat<(add GPR:$Rs1, i32neg16:$imm),
(SUB_I_LO GPR:$Rs1, (NEG $imm))>;
def : Pat<(sub GPR:$Rs1, i32neg16:$imm),
(ADD_I_LO GPR:$Rs1, (NEG $imm))>;
// Flag (incl. carry) setting addition and subtraction
let F = 1, Defs = [SR] in {
defm ADD_F_ : ALUarith<0b000, "add.f", addc, i32lo16z, i32hi16>;
defm SUB_F_ : ALUarith<0b010, "sub.f", subc, i32lo16z, i32hi16>;
}
def : Pat<(addc GPR:$Rs1, i32lo16z:$imm),
(ADD_F_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(subc GPR:$Rs1, i32lo16z:$imm),
(SUB_F_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(addc GPR:$Rs1, i32hi16:$imm),
(ADD_F_I_HI GPR:$Rs1, i32hi16:$imm)>;
def : Pat<(subc GPR:$Rs1, i32hi16:$imm),
(SUB_F_I_HI GPR:$Rs1, i32hi16:$imm)>;
// Carry using addition and subtraction
let F = 0, Uses = [SR] in {
defm ADDC_ : ALUarith<0b001, "addc", adde, i32lo16z, i32hi16>;
defm SUBB_ : ALUarith<0b011, "subb", sube, i32lo16z, i32hi16>;
}
def : Pat<(adde GPR:$Rs1, i32lo16z:$imm),
(ADDC_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(sube GPR:$Rs1, i32lo16z:$imm),
(SUBB_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(adde GPR:$Rs1, i32hi16:$imm),
(ADDC_I_HI GPR:$Rs1, i32hi16:$imm)>;
def : Pat<(sube GPR:$Rs1, i32hi16:$imm),
(SUBB_I_HI GPR:$Rs1, i32hi16:$imm)>;
// Flag setting ALU operations
let isAsCheapAsAMove = 1, F = 1, Defs = [SR] in {
let isCommutable = 1 in {
defm AND_F_ : ALUlogic<0b100, "and.f", and, i32lo16and, i32hi16and>;
defm OR_F_ : ALUlogic<0b101, "or.f", or, i32lo16z, i32hi16>;
defm XOR_F_ : ALUlogic<0b110, "xor.f", xor, i32lo16z, i32hi16>;
}
}
let isAsCheapAsAMove = 1, F = 1, Defs = [SR], Uses = [SR] in {
defm ADDC_F_ : ALUarith<0b001, "addc.f", adde, i32lo16z, i32hi16>;
defm SUBB_F_ : ALUarith<0b011, "subb.f", sube, i32lo16z, i32hi16>;
}
def : Pat<(LanaiSubbF GPR:$Rs1, GPR:$Rs2),
(SUBB_F_R GPR:$Rs1, GPR:$Rs2)>;
def : Pat<(LanaiSubbF GPR:$Rs1, i32lo16z:$imm),
(SUBB_F_I_LO GPR:$Rs1, i32lo16z:$imm)>;
def : Pat<(LanaiSubbF GPR:$Rs1, i32hi16:$imm),
(SUBB_F_I_HI GPR:$Rs1, i32hi16:$imm)>;
def : InstAlias<"mov $src, $dst", (ADD_R GPR:$dst, GPR:$src, R0, 0)>;
let isAsCheapAsAMove = 1, Rs1 = R0.Num, isCodeGenOnly = 1, H = 1, F = 0,
isReMaterializable = 1 in
def MOVHI : InstRI<0b000, (outs GPR:$Rd), (ins i32hi16:$imm16),
"mov\t$imm16, $Rd",
[(set GPR:$Rd, i32hi16:$imm16)]>;
def : InstAlias<"mov $imm16, $dst", (ADD_I_LO GPR:$dst, R0, i32lo16z:$imm16)>;
def : InstAlias<"mov $imm16, $dst", (ADD_I_HI GPR:$dst, R0, i32hi16:$imm16)>;
def : InstAlias<"mov $imm16, $dst",
(AND_I_LO GPR:$dst, R1, i32lo16and:$imm16)>;
def : InstAlias<"mov $imm16, $dst",
(AND_I_HI GPR:$dst, R1, i32hi16and:$imm16)>;
// Shift instructions
class ShiftRI<string AsmStr, list<dag> Pattern>
: InstRI<0b111, (outs GPR:$Rd), (ins GPR:$Rs1, immShift:$imm16),
!strconcat(AsmStr, "\t$Rs1, $imm16, $Rd"), Pattern> {
let isReMaterializable = 1;
}
let F = 0 in {
let H = 0 in
def SL_I : ShiftRI<"sh", [(set GPR:$Rd, (shl GPR:$Rs1, immShift:$imm16))]>;
let H = 1 in
def SA_I : ShiftRI<"sha", []>;
}
def : Pat<(srl GPR:$Rs1, immShift:$imm), (SL_I GPR:$Rs1, (NEG $imm))>;
def : Pat<(sra GPR:$Rs1, immShift:$imm), (SA_I GPR:$Rs1, (NEG $imm))>;
let F = 1, Defs = [SR] in {
let H = 0 in
def SL_F_I : ShiftRI<"sh.f", []>;
let H = 1 in
def SA_F_I : ShiftRI<"sha.f", []>;
}
class ShiftRR<string AsmStr, list<dag> Pattern>
: InstRR<0b111, (outs GPR:$Rd), (ins GPR:$Rs1, GPR:$Rs2, pred:$DDDI), AsmStr,
Pattern>;
let F = 0 in {
let JJJJJ = 0b10000 in
def SHL_R : ShiftRR<"sh$DDDI\t$Rs1, $Rs2, $Rd",
[(set GPR:$Rd, (shl GPR:$Rs1, GPR:$Rs2))]>;
let isCodeGenOnly = 1 in {
let JJJJJ = 0b10000 in
def SRL_R : ShiftRR<"sh$DDDI\t$Rs1, $Rs2, $Rd", []>;
}
let JJJJJ = 0b11000 in
def SRA_R : ShiftRR<"sha$DDDI\t$Rs1, $Rs2, $Rd", []>;
}
let F = 1, Defs = [SR] in {
let JJJJJ = 0b10000 in
def SHL_F_R : ShiftRR<"sh.f$DDDI\t$Rs1, $Rs2, $Rd", []>;
let isCodeGenOnly = 1 in {
let JJJJJ = 0b10000 in
def SRL_F_R : ShiftRR<"sh.f$DDDI\t$Rs1, $Rs2, $Rd", []>;
}
let JJJJJ = 0b11000 in
def SRA_F_R : ShiftRR<"sha.f$DDDI\t$Rs1, $Rs2, $Rd", []>;
}
// Expand shift-right operations
def : Pat<(srl GPR:$Rs1, GPR:$Rs2),
(SRL_R GPR:$Rs1, (SUB_R R0, GPR:$Rs2))>;
def : Pat<(sra GPR:$Rs1, GPR:$Rs2),
(SRA_R GPR:$Rs1, (SUB_R R0, GPR:$Rs2))>;
// -------------------------------------------------- //
// LOAD instructions
// -------------------------------------------------- //
class LoadRR<string OpcString, PatFrag OpNode, ValueType Ty>
: InstRRM<0b0, (outs GPR:$Rd), (ins MEMrr:$src),
!strconcat(OpcString, "\t$src, $Rd"),
[(set (Ty GPR:$Rd), (OpNode ADDRrr:$src))]>,
Sched<[WriteLD]> {
bits<20> src;
let Rs1 = src{19-15};
let Rs2 = src{14-10};
let P = src{9};
let Q = src{8};
let BBB = src{7-5};
let JJJJJ = src{4-0};
let mayLoad = 1;
}
class LoadRI<string OpcString, PatFrag OpNode, ValueType Ty>
: InstRM<0b0, (outs GPR:$Rd), (ins MEMri:$src),
!strconcat(OpcString, "\t$src, $Rd"),
[(set (Ty GPR:$Rd), (OpNode ADDRri:$src))]>,
Sched<[WriteLD]> {
bits<23> src;
let Itinerary = IIC_LD;
let Rs1 = src{22-18};
let P = src{17};
let Q = src{16};
let imm16 = src{15-0};
let isReMaterializable = 1;
let mayLoad = 1;
}
let E = 0 in {
let YL = 0b01 in {
// uld is used here and ld in the alias as the alias is printed out first if
// an alias exist
def LDW_RI : LoadRI<"uld", load, i32>;
def LDW_RR : LoadRR<"ld", load, i32>;
}
}
def : InstAlias<"ld $src, $dst", (LDW_RI GPR:$dst, MEMri:$src)>;
let E = 1 in {
let YL = 0b01 in {
def LDWz_RR : LoadRR<"uld", zextloadi32, i32>;
}
}
let E = 1 in {
let YL = 0b00 in
def LDHz_RR : LoadRR<"uld.h", zextloadi16, i32>;
let YL = 0b10 in
def LDBz_RR : LoadRR<"uld.b", zextloadi8, i32>;
}
let E = 0 in {
let YL = 0b00 in
def LDHs_RR : LoadRR<"ld.h", sextloadi16, i32>;
let YL = 0b10 in
def LDBs_RR : LoadRR<"ld.b", sextloadi8, i32>;
}
def LDADDR : InstSLS<0x0, (outs GPR:$Rd), (ins MEMi:$src),
"ld\t$src, $Rd",
[(set (i32 GPR:$Rd), (load ADDRsls:$src))]>,
Sched<[WriteLD]> {
bits<21> src;
let Itinerary = IIC_LD;
let msb = src{20-16};
let lsb = src{15-0};
let isReMaterializable = 1;
let mayLoad = 1;
}
class LoadSPLS<string asmstring, PatFrag opNode>
: InstSPLS<(outs GPR:$Rd), (ins MEMspls:$src),
!strconcat(asmstring, "\t$src, $Rd"),
[(set (i32 GPR:$Rd), (opNode ADDRspls:$src))]>,
Sched<[WriteLDSW]> {
bits<17> src;
let Itinerary = IIC_LDSW;
let Rs1 = src{16-12};
let P = src{11};
let Q = src{10};
let imm10 = src{9-0};
let mayLoad = 1;
let isReMaterializable = 1;
}
let Y = 0, S = 0, E = 1 in
def LDHz_RI : LoadSPLS<"uld.h", zextloadi16>;
let Y = 0, S = 0, E = 0 in
def LDHs_RI : LoadSPLS<"ld.h", sextloadi16>;
let Y = 1, S = 0, E = 1 in
def LDBz_RI : LoadSPLS<"uld.b", zextloadi8>;
let Y = 1, S = 0, E = 0 in
def LDBs_RI : LoadSPLS<"ld.b", sextloadi8>;
def SLI : InstSLI<(outs GPR:$Rd), (ins i32lo21:$imm),
"mov\t$imm, $Rd",
[(set GPR:$Rd, i32lo21:$imm)]> {
bits<21> imm;
let msb = imm{20-16};
let lsb = imm{15-0};
let isReMaterializable = 1;
let isAsCheapAsAMove = 1;
}
// -------------------------------------------------- //
// STORE instructions
// -------------------------------------------------- //
class StoreRR<string OpcString, PatFrag OpNode, ValueType Ty>
: InstRRM<0b1, (outs), (ins GPR:$Rd, MEMrr:$dst),
!strconcat(OpcString, "\t$Rd, $dst"),
[(OpNode (Ty GPR:$Rd), ADDRrr:$dst)]>,
Sched<[WriteST]> {
bits<20> dst;
let Itinerary = IIC_ST;
let Rs1 = dst{19-15};
let Rs2 = dst{14-10};
let P = dst{9};
let Q = dst{8};
let BBB = dst{7-5};
let JJJJJ = dst{4-0};
let mayStore = 1;
}
class StoreRI<string OpcString, PatFrag OpNode, ValueType Ty>
: InstRM<0b1, (outs), (ins GPR:$Rd, MEMri:$dst),
!strconcat(OpcString, "\t$Rd, $dst"),
[(OpNode (Ty GPR:$Rd), ADDRri:$dst)]>,
Sched<[WriteST]> {
bits<23> dst;
let Itinerary = IIC_ST;
let Rs1 = dst{22-18};
let P = dst{17};
let Q = dst{16};
let imm16 = dst{15-0};
let mayStore = 1;
}
let YL = 0b01, E = 0 in {
def SW_RR : StoreRR<"st", store, i32>;
def SW_RI : StoreRI<"st", store, i32>;
}
let E = 0 in {
let YL = 0b00 in
def STH_RR : StoreRR<"st.h", truncstorei16, i32>;
let YL = 0b10 in
def STB_RR : StoreRR<"st.b", truncstorei8, i32>;
}
def STADDR : InstSLS<0x1, (outs), (ins GPR:$Rd, MEMi:$dst),
"st\t$Rd, $dst",
[(store (i32 GPR:$Rd), ADDRsls:$dst)]>,
Sched<[WriteST]> {
bits<21> dst;
let Itinerary = IIC_ST;
let msb = dst{20-16};
let lsb = dst{15-0};
let mayStore = 1;
}
class StoreSPLS<string asmstring, PatFrag opNode>
: InstSPLS<(outs), (ins GPR:$Rd, MEMspls:$dst),
!strconcat(asmstring, "\t$Rd, $dst"),
[(opNode (i32 GPR:$Rd), ADDRspls:$dst)]>,
Sched<[WriteSTSW]> {
bits<17> dst;
let Itinerary = IIC_STSW;
let Rs1 = dst{16-12};
let P = dst{11};
let Q = dst{10};
let imm10 = dst{9-0};
let mayStore = 1;
}
let Y = 0, S = 1, E = 0 in
def STH_RI : StoreSPLS<"st.h", truncstorei16>;
let Y = 1, S = 1, E = 0 in
def STB_RI : StoreSPLS<"st.b", truncstorei8>;
// -------------------------------------------------- //
// BRANCH instructions
// -------------------------------------------------- //
let isBranch = 1, isBarrier = 1, isTerminator = 1, hasDelaySlot = 1 in {
def BT : InstBR<(outs), (ins BrTarget:$addr),
"bt\t$addr",
[(br bb:$addr)]> {
let DDDI = 0b0000;
}
let Uses = [SR] in
def BRCC : InstBR<(outs), (ins BrTarget:$addr, CCOp:$DDDI),
"b$DDDI\t$addr",
[(LanaiBrCC bb:$addr, imm:$DDDI)]>;
let isIndirectBranch = 1 in {
def JR : InstRR<0b101, (outs), (ins GPR:$Rs2), "bt\t$Rs2",
[(brind GPR:$Rs2)]> {
let Rs1 = R0.Num;
let Rd = R2.Num;
let F = 0;
let JJJJJ = 0;
let DDDI = 0;
}
}
}
// -------------------------------------------------- //
// Condition/SF instructions
// -------------------------------------------------- //
// Instructions to set flags used in lowering comparisons.
multiclass SF<bits<3> op2Val, string AsmStr> {
let F = 1, Rd = R0.Num, JJJJJ = 0, Defs = [SR], DDDI = 0 in
def _RR : InstRR<op2Val, (outs), (ins GPR:$Rs1, GPR:$Rs2),
!strconcat(AsmStr, "\t$Rs1, $Rs2, %r0"),
[(LanaiSetFlag (i32 GPR:$Rs1), (i32 GPR:$Rs2))]>;
let F = 1, Rd = R0.Num, H = 0, Defs = [SR] in
def _RI_LO : InstRI<op2Val, (outs), (ins GPR:$Rs1, i32lo16z:$imm16),
!strconcat(AsmStr, "\t$Rs1, $imm16, %r0"),
[(LanaiSetFlag (i32 GPR:$Rs1), i32lo16z:$imm16)]>;
let F = 1, Rd = R0.Num, H = 1, Defs = [SR] in
def _RI_HI : InstRI<op2Val, (outs), (ins GPR:$Rs1, i32hi16:$imm16),
!strconcat(AsmStr, "\t$Rs1, $imm16, %r0"),
[(LanaiSetFlag (i32 GPR:$Rs1), i32hi16:$imm16)]>;
}
let isCodeGenOnly = 1, isCompare = 1 in {
defm SFSUB_F : SF<0b010, "sub.f">;
}
// Jump and link
let isCall = 1, hasDelaySlot = 1, isCodeGenOnly = 1, Uses = [SP],
Defs = [RCA] in {
def CALL : Pseudo<(outs), (ins CallTarget:$addr), "", []>;
def CALLR : Pseudo<(outs), (ins GPR:$Rs1), "", [(Call GPR:$Rs1)]>;
}
let isReturn = 1, isTerminator = 1, hasDelaySlot = 1, isBarrier = 1,
Uses = [RCA] in {
def RET : InstRM<0b0, (outs), (ins),
"ld\t-4[%fp], %pc ! return",
[(RetFlag)]> {
let Rd = PC.Num;
let Rs1 = FP.Num;
let P = 1;
let Q = 0;
let imm16 = -4;
// Post encoding is not needed for RET.
let PostEncoderMethod = "";
}
}
// ADJCALLSTACKDOWN/UP implicitly use/def SP because they may be expanded into
// a stack adjustment and the codegen must know that they may modify the stack
// pointer before prolog-epilog rewriting occurs.
// Pessimistically assume ADJCALLSTACKDOWN / ADJCALLSTACKUP will become
// sub / add which can clobber SP.
let Defs = [SP], Uses = [SP] in {
def ADJCALLSTACKDOWN : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
"#ADJCALLSTACKDOWN $amt1 $amt2",
[(CallSeqStart timm:$amt1, timm:$amt2)]>;
def ADJCALLSTACKUP : Pseudo<(outs), (ins i32imm:$amt1, i32imm:$amt2),
"#ADJCALLSTACKUP $amt1 $amt2",
[(CallSeqEnd timm:$amt1, timm:$amt2)]>;
}
let Defs = [SP], Uses = [SP] in {
def ADJDYNALLOC : Pseudo<(outs GPR:$dst), (ins GPR:$src),
"#ADJDYNALLOC $dst $src",
[(set GPR:$dst, (LanaiAdjDynAlloc GPR:$src))]>;
}
let Uses = [SR] in {
def SCC : InstSCC<(outs GPR:$Rs1), (ins CCOp:$DDDI),
"s$DDDI\t$Rs1",
[(set (i32 GPR:$Rs1), (LanaiSetCC imm:$DDDI))]>;
}
// Select with hardware support
let Uses = [SR], isSelect = 1 in {
def SELECT : InstRR<0b111, (outs GPR:$Rd),
(ins GPR:$Rs1, GPR:$Rs2, CCOp:$DDDI),
"sel.$DDDI $Rs1, $Rs2, $Rd",
[(set (i32 GPR:$Rd),
(LanaiSelectCC (i32 GPR:$Rs1), (i32 GPR:$Rs2),
(imm:$DDDI)))]> {
let JJJJJ = 0;
let F = 0;
}
}
let isBranch = 1, isBarrier = 1, isTerminator = 1, hasDelaySlot = 1,
isIndirectBranch = 1, Uses = [SR] in {
def BRIND_CC : InstRR<0b101, (outs), (ins GPR:$Rs1, CCOp:$DDDI),
"b$DDDI\t$Rs1", []> {
let F = 0;
let JJJJJ = 0;
let Rd = PC.Num;
let Rs2 = R0.Num;
}
def BRIND_CCA : InstRR<0b101, (outs), (ins GPR:$Rs1, GPR:$Rs2, CCOp:$DDDI),
"b${DDDI}\t$Rs1 add $Rs2", []> {
let F = 0;
let Rd = PC.Num;
let JJJJJ = 0;
}
}
// TODO: This only considers the case where BROFF is an immediate and not where
// it is a register. Add support for register relative branching.
let isBranch = 1, isBarrier = 1, isTerminator = 1, hasDelaySlot = 1, Rs1 = 0,
Uses = [SR] in
def BRR : InstBRR<(outs), (ins i16imm:$imm16, CCOp:$DDDI),
"b${DDDI}.r\t$imm16", []>;
let F = 0 in {
// Population Count (POPC)
def POPC: InstSpecial<0b001, (outs GPR:$Rd), (ins GPR:$Rs1),
"popc\t$Rs1, $Rd",
[(set GPR:$Rd, (ctpop GPR:$Rs1))]>;
// Count Leading Zeros (LEADZ)
def LEADZ: InstSpecial<0b010, (outs GPR:$Rd), (ins GPR:$Rs1),
"leadz\t$Rs1, $Rd", [(set GPR:$Rd, (ctlz GPR:$Rs1))]>;
// Count Trailing Zeros (TRAILZ)
def TRAILZ : InstSpecial<0b011, (outs GPR:$Rd), (ins GPR:$Rs1),
"trailz\t$Rs1, $Rd",
[(set GPR:$Rd, (cttz GPR:$Rs1))]>;
}
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//===----------------------------------------------------------------------===//
// unsigned 16-bit immediate
def : Pat<(i32 i32lo16z:$imm), (OR_I_LO (i32 R0), imm:$imm)>;
// arbitrary immediate
def : Pat<(i32 imm:$imm), (OR_I_LO (MOVHI (HI16 imm:$imm)), (LO16 imm:$imm))>;
// Calls
def : Pat<(Call tglobaladdr:$dst), (CALL tglobaladdr:$dst)>;
def : Pat<(Call texternalsym:$dst), (CALL texternalsym:$dst)>;
// Loads
def : Pat<(extloadi8 ADDRspls:$src), (i32 (LDBz_RI ADDRspls:$src))>;
def : Pat<(extloadi16 ADDRspls:$src), (i32 (LDHz_RI ADDRspls:$src))>;
// Loads up to 32-bits are already atomic.
// TODO: This is a workaround for a particular failing case and should be
// handled more generally.
def : Pat<(atomic_load_8 ADDRspls:$src), (i32 (LDBz_RI ADDRspls:$src))>;
// GlobalAddress, ExternalSymbol, Jumptable, ConstantPool
def : Pat<(LanaiHi tglobaladdr:$dst), (MOVHI tglobaladdr:$dst)>;
def : Pat<(LanaiLo tglobaladdr:$dst), (OR_I_LO (i32 R0), tglobaladdr:$dst)>;
def : Pat<(LanaiSmall tglobaladdr:$dst), (SLI tglobaladdr:$dst)>;
def : Pat<(LanaiHi texternalsym:$dst), (MOVHI texternalsym:$dst)>;
def : Pat<(LanaiLo texternalsym:$dst), (OR_I_LO (i32 R0), texternalsym:$dst)>;
def : Pat<(LanaiSmall texternalsym:$dst), (SLI texternalsym:$dst)>;
def : Pat<(LanaiHi tblockaddress:$dst), (MOVHI tblockaddress:$dst)>;
def : Pat<(LanaiLo tblockaddress:$dst), (OR_I_LO (i32 R0), tblockaddress:$dst)>;
def : Pat<(LanaiSmall tblockaddress:$dst), (SLI tblockaddress:$dst)>;
def : Pat<(LanaiHi tjumptable:$dst), (MOVHI tjumptable:$dst)>;
def : Pat<(LanaiLo tjumptable:$dst), (OR_I_LO (i32 R0), tjumptable:$dst)>;
def : Pat<(LanaiSmall tjumptable:$dst), (SLI tjumptable:$dst)>;
def : Pat<(LanaiHi tconstpool:$dst), (MOVHI tconstpool:$dst)>;
def : Pat<(LanaiLo tconstpool:$dst), (OR_I_LO (i32 R0), tconstpool:$dst)>;
def : Pat<(LanaiSmall tconstpool:$dst), (SLI tconstpool:$dst)>;
def : Pat<(or GPR:$hi, (LanaiLo tglobaladdr:$lo)),
(OR_I_LO GPR:$hi, tglobaladdr:$lo)>;
def : Pat<(or R0, (LanaiSmall tglobaladdr:$small)),
(SLI tglobaladdr:$small)>;
def : Pat<(or GPR:$hi, (LanaiLo texternalsym:$lo)),
(OR_I_LO GPR:$hi, texternalsym:$lo)>;
def : Pat<(or R0, (LanaiSmall texternalsym:$small)),
(SLI texternalsym:$small)>;
def : Pat<(or GPR:$hi, (LanaiLo tblockaddress:$lo)),
(OR_I_LO GPR:$hi, tblockaddress:$lo)>;
def : Pat<(or R0, (LanaiSmall tblockaddress:$small)),
(SLI tblockaddress:$small)>;
def : Pat<(or GPR:$hi, (LanaiLo tjumptable:$lo)),
(OR_I_LO GPR:$hi, tjumptable:$lo)>;
def : Pat<(or R0, (LanaiSmall tjumptable:$small)),
(SLI tjumptable:$small)>;
def : Pat<(or GPR:$hi, (LanaiLo tconstpool:$lo)),
(OR_I_LO GPR:$hi, tconstpool:$lo)>;
def : Pat<(or R0, (LanaiSmall tconstpool:$small)),
(SLI tconstpool:$small)>;