aboutsummaryrefslogtreecommitdiff
path: root/lib/Target/Mips/MipsInstrInfo.td
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/Mips/MipsInstrInfo.td')
-rw-r--r--lib/Target/Mips/MipsInstrInfo.td180
1 files changed, 134 insertions, 46 deletions
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 25b5d240be..3a82e81713 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -23,13 +23,16 @@ def SDT_MipsCMov : SDTypeProfile<1, 4, [SDTCisSameAs<0, 1>,
SDTCisInt<4>]>;
def SDT_MipsCallSeqStart : SDCallSeqStart<[SDTCisVT<0, i32>]>;
def SDT_MipsCallSeqEnd : SDCallSeqEnd<[SDTCisVT<0, i32>, SDTCisVT<1, i32>]>;
-def SDT_MipsMAddMSub : SDTypeProfile<0, 4,
- [SDTCisVT<0, i32>, SDTCisSameAs<0, 1>,
- SDTCisSameAs<1, 2>,
- SDTCisSameAs<2, 3>]>;
-def SDT_MipsDivRem : SDTypeProfile<0, 2,
- [SDTCisInt<0>,
- SDTCisSameAs<0, 1>]>;
+def SDT_ExtractLOHI : SDTypeProfile<1, 2, [SDTCisInt<0>, SDTCisVT<1, untyped>,
+ SDTCisVT<2, i32>]>;
+def SDT_InsertLOHI : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>,
+ SDTCisVT<1, i32>, SDTCisSameAs<1, 2>]>;
+def SDT_MipsMultDiv : SDTypeProfile<1, 2, [SDTCisVT<0, untyped>, SDTCisInt<1>,
+ SDTCisSameAs<1, 2>]>;
+def SDT_MipsMAddMSub : SDTypeProfile<1, 3,
+ [SDTCisVT<0, untyped>, SDTCisSameAs<0, 3>,
+ SDTCisVT<1, i32>, SDTCisSameAs<1, 2>]>;
+def SDT_MipsDivRem16 : SDTypeProfile<0, 2, [SDTCisInt<0>, SDTCisSameAs<0, 1>]>;
def SDT_MipsThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
@@ -82,20 +85,27 @@ def callseq_end : SDNode<"ISD::CALLSEQ_END", SDT_MipsCallSeqEnd,
[SDNPHasChain, SDNPSideEffect,
SDNPOptInGlue, SDNPOutGlue]>;
+// Node used to extract integer from LO/HI register.
+def ExtractLOHI : SDNode<"MipsISD::ExtractLOHI", SDT_ExtractLOHI>;
+
+// Node used to insert 32-bit integers to LOHI register pair.
+def InsertLOHI : SDNode<"MipsISD::InsertLOHI", SDT_InsertLOHI>;
+
+// Mult nodes.
+def MipsMult : SDNode<"MipsISD::Mult", SDT_MipsMultDiv>;
+def MipsMultu : SDNode<"MipsISD::Multu", SDT_MipsMultDiv>;
+
// MAdd*/MSub* nodes
-def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub,
- [SDNPOptInGlue, SDNPOutGlue]>;
-def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub,
- [SDNPOptInGlue, SDNPOutGlue]>;
-def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub,
- [SDNPOptInGlue, SDNPOutGlue]>;
-def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub,
- [SDNPOptInGlue, SDNPOutGlue]>;
+def MipsMAdd : SDNode<"MipsISD::MAdd", SDT_MipsMAddMSub>;
+def MipsMAddu : SDNode<"MipsISD::MAddu", SDT_MipsMAddMSub>;
+def MipsMSub : SDNode<"MipsISD::MSub", SDT_MipsMAddMSub>;
+def MipsMSubu : SDNode<"MipsISD::MSubu", SDT_MipsMAddMSub>;
// DivRem(u) nodes
-def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsDivRem,
- [SDNPOutGlue]>;
-def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsDivRem,
+def MipsDivRem : SDNode<"MipsISD::DivRem", SDT_MipsMultDiv>;
+def MipsDivRemU : SDNode<"MipsISD::DivRemU", SDT_MipsMultDiv>;
+def MipsDivRem16 : SDNode<"MipsISD::DivRem16", SDT_MipsDivRem16, [SDNPOutGlue]>;
+def MipsDivRemU16 : SDNode<"MipsISD::DivRemU16", SDT_MipsDivRem16,
[SDNPOutGlue]>;
// Target constant nodes that are not part of any isel patterns and remain
@@ -256,6 +266,7 @@ def mem : Operand<i32> {
let MIOperandInfo = (ops CPURegs, simm16);
let EncoderMethod = "getMemEncoding";
let ParserMatchClass = MipsMemAsmOperand;
+ let OperandType = "OPERAND_MEMORY";
}
def mem64 : Operand<i64> {
@@ -263,18 +274,21 @@ def mem64 : Operand<i64> {
let MIOperandInfo = (ops CPU64Regs, simm16_64);
let EncoderMethod = "getMemEncoding";
let ParserMatchClass = MipsMemAsmOperand;
+ let OperandType = "OPERAND_MEMORY";
}
def mem_ea : Operand<i32> {
let PrintMethod = "printMemOperandEA";
let MIOperandInfo = (ops CPURegs, simm16);
let EncoderMethod = "getMemEncoding";
+ let OperandType = "OPERAND_MEMORY";
}
def mem_ea_64 : Operand<i64> {
let PrintMethod = "printMemOperandEA";
let MIOperandInfo = (ops CPU64Regs, simm16_64);
let EncoderMethod = "getMemEncoding";
+ let OperandType = "OPERAND_MEMORY";
}
// size operand of ext instruction
@@ -378,10 +392,9 @@ class ArithLogicI<string opstr, Operand Od, RegisterOperand RO,
}
// Arithmetic Multiply ADD/SUB
-class MArithR<string opstr, SDPatternOperator op = null_frag, bit isComm = 0> :
+class MArithR<string opstr, bit isComm = 0> :
InstSE<(outs), (ins CPURegsOpnd:$rs, CPURegsOpnd:$rt),
- !strconcat(opstr, "\t$rs, $rt"),
- [(op CPURegsOpnd:$rs, CPURegsOpnd:$rt, LO, HI)], IIImul, FrmR> {
+ !strconcat(opstr, "\t$rs, $rt"), [], IIImul, FrmR> {
let Defs = [HI, LO];
let Uses = [HI, LO];
let isCommutable = isComm;
@@ -427,33 +440,39 @@ class FMem<bits<6> op, dag outs, dag ins, string asmstr, list<dag> pattern,
// Memory Load/Store
class Load<string opstr, SDPatternOperator OpNode, RegisterClass RC,
- Operand MemOpnd> :
+ Operand MemOpnd, ComplexPattern Addr> :
InstSE<(outs RC:$rt), (ins MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
- [(set RC:$rt, (OpNode addr:$addr))], NoItinerary, FrmI> {
+ [(set RC:$rt, (OpNode Addr:$addr))], NoItinerary, FrmI> {
let DecoderMethod = "DecodeMem";
let canFoldAsLoad = 1;
+ let mayLoad = 1;
}
class Store<string opstr, SDPatternOperator OpNode, RegisterClass RC,
- Operand MemOpnd> :
+ Operand MemOpnd, ComplexPattern Addr> :
InstSE<(outs), (ins RC:$rt, MemOpnd:$addr), !strconcat(opstr, "\t$rt, $addr"),
- [(OpNode RC:$rt, addr:$addr)], NoItinerary, FrmI> {
+ [(OpNode RC:$rt, Addr:$addr)], NoItinerary, FrmI> {
let DecoderMethod = "DecodeMem";
+ let mayStore = 1;
}
multiclass LoadM<string opstr, RegisterClass RC,
- SDPatternOperator OpNode = null_frag> {
- def NAME : Load<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>;
- def _P8 : Load<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> {
+ SDPatternOperator OpNode = null_frag,
+ ComplexPattern Addr = addr> {
+ def NAME : Load<opstr, OpNode, RC, mem, Addr>, Requires<[NotN64, HasStdEnc]>;
+ def _P8 : Load<opstr, OpNode, RC, mem64, Addr>,
+ Requires<[IsN64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
let isCodeGenOnly = 1;
}
}
multiclass StoreM<string opstr, RegisterClass RC,
- SDPatternOperator OpNode = null_frag> {
- def NAME : Store<opstr, OpNode, RC, mem>, Requires<[NotN64, HasStdEnc]>;
- def _P8 : Store<opstr, OpNode, RC, mem64>, Requires<[IsN64, HasStdEnc]> {
+ SDPatternOperator OpNode = null_frag,
+ ComplexPattern Addr = addr> {
+ def NAME : Store<opstr, OpNode, RC, mem, Addr>, Requires<[NotN64, HasStdEnc]>;
+ def _P8 : Store<opstr, OpNode, RC, mem64, Addr>,
+ Requires<[IsN64, HasStdEnc]> {
let DecoderNamespace = "Mips64";
let isCodeGenOnly = 1;
}
@@ -623,11 +642,34 @@ class Mult<string opstr, InstrItinClass itin, RegisterOperand RO,
let neverHasSideEffects = 1;
}
-class Div<SDNode op, string opstr, InstrItinClass itin, RegisterOperand RO,
+// Pseudo multiply/divide instruction with explicit accumulator register
+// operands.
+class MultDivPseudo<Instruction RealInst, RegisterClass R0, RegisterOperand R1,
+ SDPatternOperator OpNode, InstrItinClass Itin,
+ bit IsComm = 1, bit HasSideEffects = 0> :
+ PseudoSE<(outs R0:$ac), (ins R1:$rs, R1:$rt),
+ [(set R0:$ac, (OpNode R1:$rs, R1:$rt))], Itin>,
+ PseudoInstExpansion<(RealInst R1:$rs, R1:$rt)> {
+ let isCommutable = IsComm;
+ let hasSideEffects = HasSideEffects;
+}
+
+// Pseudo multiply add/sub instruction with explicit accumulator register
+// operands.
+class MAddSubPseudo<Instruction RealInst, SDPatternOperator OpNode>
+ : PseudoSE<(outs ACRegs:$ac),
+ (ins CPURegsOpnd:$rs, CPURegsOpnd:$rt, ACRegs:$acin),
+ [(set ACRegs:$ac,
+ (OpNode CPURegsOpnd:$rs, CPURegsOpnd:$rt, ACRegs:$acin))],
+ IIImul>,
+ PseudoInstExpansion<(RealInst CPURegsOpnd:$rs, CPURegsOpnd:$rt)> {
+ string Constraints = "$acin = $ac";
+}
+
+class Div<string opstr, InstrItinClass itin, RegisterOperand RO,
list<Register> DefRegs> :
- InstSE<(outs), (ins RO:$rs, RO:$rt),
- !strconcat(opstr, "\t$$zero, $rs, $rt"), [(op RO:$rs, RO:$rt)], itin,
- FrmR> {
+ InstSE<(outs), (ins RO:$rs, RO:$rt), !strconcat(opstr, "\t$$zero, $rs, $rt"),
+ [], itin, FrmR> {
let Defs = DefRegs;
}
@@ -790,6 +832,14 @@ let usesCustomInserter = 1 in {
defm ATOMIC_CMP_SWAP_I32 : AtomicCmpSwap32<atomic_cmp_swap_32>;
}
+/// Pseudo instructions for loading, storing and copying accumulator registers.
+let isPseudo = 1 in {
+ defm LOAD_AC64 : LoadM<"load_ac64", ACRegs>;
+ defm STORE_AC64 : StoreM<"store_ac64", ACRegs>;
+}
+
+def COPY_AC64 : PseudoSE<(outs ACRegs:$dst), (ins ACRegs:$src), []>;
+
//===----------------------------------------------------------------------===//
// Instruction definition
//===----------------------------------------------------------------------===//
@@ -845,10 +895,10 @@ let Predicates = [HasMips32r2, HasStdEnc] in {
/// Load and Store Instructions
/// aligned
defm LB : LoadM<"lb", CPURegs, sextloadi8>, LW_FM<0x20>;
-defm LBu : LoadM<"lbu", CPURegs, zextloadi8>, LW_FM<0x24>;
-defm LH : LoadM<"lh", CPURegs, sextloadi16>, LW_FM<0x21>;
+defm LBu : LoadM<"lbu", CPURegs, zextloadi8, addrDefault>, LW_FM<0x24>;
+defm LH : LoadM<"lh", CPURegs, sextloadi16, addrDefault>, LW_FM<0x21>;
defm LHu : LoadM<"lhu", CPURegs, zextloadi16>, LW_FM<0x25>;
-defm LW : LoadM<"lw", CPURegs, load>, LW_FM<0x23>;
+defm LW : LoadM<"lw", CPURegs, load, addrDefault>, LW_FM<0x23>;
defm SB : StoreM<"sb", CPURegs, truncstorei8>, LW_FM<0x28>;
defm SH : StoreM<"sh", CPURegs, truncstorei16>, LW_FM<0x29>;
defm SW : StoreM<"sw", CPURegs, store>, LW_FM<0x2b>;
@@ -920,10 +970,13 @@ let Uses = [V0, V1], isTerminator = 1, isReturn = 1, isBarrier = 1 in {
/// Multiply and Divide Instructions.
def MULT : Mult<"mult", IIImul, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x18>;
def MULTu : Mult<"multu", IIImul, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x19>;
-def SDIV : Div<MipsDivRem, "div", IIIdiv, CPURegsOpnd, [HI, LO]>,
- MULT_FM<0, 0x1a>;
-def UDIV : Div<MipsDivRemU, "divu", IIIdiv, CPURegsOpnd, [HI, LO]>,
- MULT_FM<0, 0x1b>;
+def PseudoMULT : MultDivPseudo<MULT, ACRegs, CPURegsOpnd, MipsMult, IIImul>;
+def PseudoMULTu : MultDivPseudo<MULTu, ACRegs, CPURegsOpnd, MipsMultu, IIImul>;
+def SDIV : Div<"div", IIIdiv, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x1a>;
+def UDIV : Div<"divu", IIIdiv, CPURegsOpnd, [HI, LO]>, MULT_FM<0, 0x1b>;
+def PseudoSDIV : MultDivPseudo<SDIV, ACRegs, CPURegsOpnd, MipsDivRem, IIIdiv, 0>;
+def PseudoUDIV : MultDivPseudo<UDIV, ACRegs, CPURegsOpnd, MipsDivRemU, IIIdiv,
+ 0>;
def MTHI : MoveToLOHI<"mthi", CPURegs, [HI]>, MTLO_FM<0x11>;
def MTLO : MoveToLOHI<"mtlo", CPURegs, [LO]>, MTLO_FM<0x13>;
@@ -951,10 +1004,14 @@ def NOP : PseudoSE<(outs), (ins), []>, PseudoInstExpansion<(SLL ZERO, ZERO, 0)>;
def LEA_ADDiu : EffectiveAddress<"addiu", CPURegs, mem_ea>, LW_FM<9>;
// MADD*/MSUB*
-def MADD : MArithR<"madd", MipsMAdd, 1>, MULT_FM<0x1c, 0>;
-def MADDU : MArithR<"maddu", MipsMAddu, 1>, MULT_FM<0x1c, 1>;
-def MSUB : MArithR<"msub", MipsMSub>, MULT_FM<0x1c, 4>;
-def MSUBU : MArithR<"msubu", MipsMSubu>, MULT_FM<0x1c, 5>;
+def MADD : MArithR<"madd", 1>, MULT_FM<0x1c, 0>;
+def MADDU : MArithR<"maddu", 1>, MULT_FM<0x1c, 1>;
+def MSUB : MArithR<"msub">, MULT_FM<0x1c, 4>;
+def MSUBU : MArithR<"msubu">, MULT_FM<0x1c, 5>;
+def PseudoMADD : MAddSubPseudo<MADD, MipsMAdd>;
+def PseudoMADDU : MAddSubPseudo<MADDU, MipsMAddu>;
+def PseudoMSUB : MAddSubPseudo<MSUB, MipsMSub>;
+def PseudoMSUBU : MAddSubPseudo<MSUBU, MipsMSubu>;
def RDHWR : ReadHardware<CPURegs, HWRegsOpnd>, RDHWR_FM;
@@ -997,6 +1054,9 @@ def : InstAlias<"and $rs, $rt, $imm",
def : InstAlias<"j $rs", (JR CPURegs:$rs), 0>,
Requires<[NotMips64]>;
def : InstAlias<"jalr $rs", (JALR RA, CPURegs:$rs)>, Requires<[NotMips64]>;
+def : InstAlias<"jal $rs", (JALR RA, CPURegs:$rs), 0>, Requires<[NotMips64]>;
+def : InstAlias<"jal $rd,$rs", (JALR CPURegs:$rd, CPURegs:$rs), 0>,
+ Requires<[NotMips64]>;
def : InstAlias<"not $rt, $rs",
(NOR CPURegsOpnd:$rt, CPURegsOpnd:$rs, ZERO), 1>;
def : InstAlias<"neg $rt, $rs",
@@ -1008,6 +1068,9 @@ def : InstAlias<"slt $rs, $rt, $imm",
def : InstAlias<"xor $rs, $rt, $imm",
(XORi CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>,
Requires<[NotMips64]>;
+def : InstAlias<"or $rs, $rt, $imm",
+ (ORi CPURegsOpnd:$rs, CPURegsOpnd:$rt, simm16:$imm), 0>,
+ Requires<[NotMips64]>;
def : InstAlias<"nop", (SLL ZERO, ZERO, 0), 1>;
def : InstAlias<"mfc0 $rt, $rd",
(MFC0_3OP CPURegsOpnd:$rt, CPURegsOpnd:$rd, 0), 0>;
@@ -1043,6 +1106,13 @@ def LoadAddr32Imm : LoadAddressImm<"la", shamt,CPURegsOpnd>;
// Arbitrary patterns that map to one or more instructions
//===----------------------------------------------------------------------===//
+// Load/store pattern templates.
+class LoadRegImmPat<Instruction LoadInst, ValueType ValTy, PatFrag Node> :
+ MipsPat<(ValTy (Node addrRegImm:$a)), (LoadInst addrRegImm:$a)>;
+
+class StoreRegImmPat<Instruction StoreInst, ValueType ValTy> :
+ MipsPat<(store ValTy:$v, addrRegImm:$a), (StoreInst ValTy:$v, addrRegImm:$a)>;
+
// Small immediates
def : MipsPat<(i32 immSExt16:$in),
(ADDiu ZERO, imm:$in)>;
@@ -1220,6 +1290,24 @@ defm : SetgeImmPats<CPURegs, SLTi, SLTiu>;
// bswap pattern
def : MipsPat<(bswap CPURegs:$rt), (ROTR (WSBH CPURegs:$rt), 16)>;
+// mflo/hi patterns.
+def : MipsPat<(i32 (ExtractLOHI ACRegs:$ac, imm:$lohi_idx)),
+ (EXTRACT_SUBREG ACRegs:$ac, imm:$lohi_idx)>;
+
+// Load halfword/word patterns.
+let AddedComplexity = 40 in {
+ let Predicates = [NotN64, HasStdEnc] in {
+ def : LoadRegImmPat<LBu, i32, zextloadi8>;
+ def : LoadRegImmPat<LH, i32, sextloadi16>;
+ def : LoadRegImmPat<LW, i32, load>;
+ }
+ let Predicates = [IsN64, HasStdEnc] in {
+ def : LoadRegImmPat<LBu_P8, i32, zextloadi8>;
+ def : LoadRegImmPat<LH_P8, i32, sextloadi16>;
+ def : LoadRegImmPat<LW_P8, i32, load>;
+ }
+}
+
//===----------------------------------------------------------------------===//
// Floating Point Support
//===----------------------------------------------------------------------===//
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-11-21 13:13:17 +0000