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llvm-6502/lib/Target/ARM/ARMInstrInfo.td
Bob Wilson a3003004aa Fix a few places that were missed when we converted to unified syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89214 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-18 18:10:35 +00:00

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TableGen
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//===- ARMInstrInfo.td - Target Description for ARM Target -*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file describes the ARM instructions in TableGen format.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// ARM specific DAG Nodes.
//
// Type profiles.
def SDT_ARMCallSeqStart : SDCallSeqStart<[ SDTCisVT<0, i32> ]>;
def SDT_ARMCallSeqEnd : SDCallSeqEnd<[ SDTCisVT<0, i32>, SDTCisVT<1, i32> ]>;
def SDT_ARMSaveCallPC : SDTypeProfile<0, 1, []>;
def SDT_ARMcall : SDTypeProfile<0, -1, [SDTCisInt<0>]>;
def SDT_ARMCMov : SDTypeProfile<1, 3,
[SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>,
SDTCisVT<3, i32>]>;
def SDT_ARMBrcond : SDTypeProfile<0, 2,
[SDTCisVT<0, OtherVT>, SDTCisVT<1, i32>]>;
def SDT_ARMBrJT : SDTypeProfile<0, 3,
[SDTCisPtrTy<0>, SDTCisVT<1, i32>,
SDTCisVT<2, i32>]>;
def SDT_ARMBr2JT : SDTypeProfile<0, 4,
[SDTCisPtrTy<0>, SDTCisVT<1, i32>,
SDTCisVT<2, i32>, SDTCisVT<3, i32>]>;
def SDT_ARMCmp : SDTypeProfile<0, 2, [SDTCisSameAs<0, 1>]>;
def SDT_ARMPICAdd : SDTypeProfile<1, 2, [SDTCisSameAs<0, 1>,
SDTCisPtrTy<1>, SDTCisVT<2, i32>]>;
def SDT_ARMThreadPointer : SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>;
def SDT_ARMEH_SJLJ_Setjmp : SDTypeProfile<1, 1, [SDTCisInt<0>, SDTCisPtrTy<1>]>;
// Node definitions.
def ARMWrapper : SDNode<"ARMISD::Wrapper", SDTIntUnaryOp>;
def ARMWrapperJT : SDNode<"ARMISD::WrapperJT", SDTIntBinOp>;
def ARMcallseq_start : SDNode<"ISD::CALLSEQ_START", SDT_ARMCallSeqStart,
[SDNPHasChain, SDNPOutFlag]>;
def ARMcallseq_end : SDNode<"ISD::CALLSEQ_END", SDT_ARMCallSeqEnd,
[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
def ARMcall : SDNode<"ARMISD::CALL", SDT_ARMcall,
[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
def ARMcall_pred : SDNode<"ARMISD::CALL_PRED", SDT_ARMcall,
[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
def ARMcall_nolink : SDNode<"ARMISD::CALL_NOLINK", SDT_ARMcall,
[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
def ARMretflag : SDNode<"ARMISD::RET_FLAG", SDTNone,
[SDNPHasChain, SDNPOptInFlag]>;
def ARMcmov : SDNode<"ARMISD::CMOV", SDT_ARMCMov,
[SDNPInFlag]>;
def ARMcneg : SDNode<"ARMISD::CNEG", SDT_ARMCMov,
[SDNPInFlag]>;
def ARMbrcond : SDNode<"ARMISD::BRCOND", SDT_ARMBrcond,
[SDNPHasChain, SDNPInFlag, SDNPOutFlag]>;
def ARMbrjt : SDNode<"ARMISD::BR_JT", SDT_ARMBrJT,
[SDNPHasChain]>;
def ARMbr2jt : SDNode<"ARMISD::BR2_JT", SDT_ARMBr2JT,
[SDNPHasChain]>;
def ARMcmp : SDNode<"ARMISD::CMP", SDT_ARMCmp,
[SDNPOutFlag]>;
def ARMcmpZ : SDNode<"ARMISD::CMPZ", SDT_ARMCmp,
[SDNPOutFlag,SDNPCommutative]>;
def ARMpic_add : SDNode<"ARMISD::PIC_ADD", SDT_ARMPICAdd>;
def ARMsrl_flag : SDNode<"ARMISD::SRL_FLAG", SDTIntUnaryOp, [SDNPOutFlag]>;
def ARMsra_flag : SDNode<"ARMISD::SRA_FLAG", SDTIntUnaryOp, [SDNPOutFlag]>;
def ARMrrx : SDNode<"ARMISD::RRX" , SDTIntUnaryOp, [SDNPInFlag ]>;
def ARMthread_pointer: SDNode<"ARMISD::THREAD_POINTER", SDT_ARMThreadPointer>;
def ARMeh_sjlj_setjmp: SDNode<"ARMISD::EH_SJLJ_SETJMP", SDT_ARMEH_SJLJ_Setjmp>;
//===----------------------------------------------------------------------===//
// ARM Instruction Predicate Definitions.
//
def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
def HasV5TE : Predicate<"Subtarget->hasV5TEOps()">;
def HasV6 : Predicate<"Subtarget->hasV6Ops()">;
def HasV6T2 : Predicate<"Subtarget->hasV6T2Ops()">;
def NoV6T2 : Predicate<"!Subtarget->hasV6T2Ops()">;
def HasV7 : Predicate<"Subtarget->hasV7Ops()">;
def HasVFP2 : Predicate<"Subtarget->hasVFP2()">;
def HasVFP3 : Predicate<"Subtarget->hasVFP3()">;
def HasNEON : Predicate<"Subtarget->hasNEON()">;
def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">;
def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">;
def IsThumb : Predicate<"Subtarget->isThumb()">;
def IsThumb1Only : Predicate<"Subtarget->isThumb1Only()">;
def IsThumb2 : Predicate<"Subtarget->isThumb2()">;
def IsARM : Predicate<"!Subtarget->isThumb()">;
def IsDarwin : Predicate<"Subtarget->isTargetDarwin()">;
def IsNotDarwin : Predicate<"!Subtarget->isTargetDarwin()">;
def CarryDefIsUnused : Predicate<"!N.getNode()->hasAnyUseOfValue(1)">;
def CarryDefIsUsed : Predicate<"N.getNode()->hasAnyUseOfValue(1)">;
//===----------------------------------------------------------------------===//
// ARM Flag Definitions.
class RegConstraint<string C> {
string Constraints = C;
}
//===----------------------------------------------------------------------===//
// ARM specific transformation functions and pattern fragments.
//
// so_imm_neg_XFORM - Return a so_imm value packed into the format described for
// so_imm_neg def below.
def so_imm_neg_XFORM : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
}]>;
// so_imm_not_XFORM - Return a so_imm value packed into the format described for
// so_imm_not def below.
def so_imm_not_XFORM : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant(~(int)N->getZExtValue(), MVT::i32);
}]>;
// rot_imm predicate - True if the 32-bit immediate is equal to 8, 16, or 24.
def rot_imm : PatLeaf<(i32 imm), [{
int32_t v = (int32_t)N->getZExtValue();
return v == 8 || v == 16 || v == 24;
}]>;
/// imm1_15 predicate - True if the 32-bit immediate is in the range [1,15].
def imm1_15 : PatLeaf<(i32 imm), [{
return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 16;
}]>;
/// imm16_31 predicate - True if the 32-bit immediate is in the range [16,31].
def imm16_31 : PatLeaf<(i32 imm), [{
return (int32_t)N->getZExtValue() >= 16 && (int32_t)N->getZExtValue() < 32;
}]>;
def so_imm_neg :
PatLeaf<(imm), [{
return ARM_AM::getSOImmVal(-(int)N->getZExtValue()) != -1;
}], so_imm_neg_XFORM>;
def so_imm_not :
PatLeaf<(imm), [{
return ARM_AM::getSOImmVal(~(int)N->getZExtValue()) != -1;
}], so_imm_not_XFORM>;
// sext_16_node predicate - True if the SDNode is sign-extended 16 or more bits.
def sext_16_node : PatLeaf<(i32 GPR:$a), [{
return CurDAG->ComputeNumSignBits(SDValue(N,0)) >= 17;
}]>;
/// bf_inv_mask_imm predicate - An AND mask to clear an arbitrary width bitfield
/// e.g., 0xf000ffff
def bf_inv_mask_imm : Operand<i32>,
PatLeaf<(imm), [{
uint32_t v = (uint32_t)N->getZExtValue();
if (v == 0xffffffff)
return 0;
// there can be 1's on either or both "outsides", all the "inside"
// bits must be 0's
unsigned int lsb = 0, msb = 31;
while (v & (1 << msb)) --msb;
while (v & (1 << lsb)) ++lsb;
for (unsigned int i = lsb; i <= msb; ++i) {
if (v & (1 << i))
return 0;
}
return 1;
}] > {
let PrintMethod = "printBitfieldInvMaskImmOperand";
}
/// Split a 32-bit immediate into two 16 bit parts.
def lo16 : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() & 0xffff,
MVT::i32);
}]>;
def hi16 : SDNodeXForm<imm, [{
return CurDAG->getTargetConstant((uint32_t)N->getZExtValue() >> 16, MVT::i32);
}]>;
def lo16AllZero : PatLeaf<(i32 imm), [{
// Returns true if all low 16-bits are 0.
return (((uint32_t)N->getZExtValue()) & 0xFFFFUL) == 0;
}], hi16>;
/// imm0_65535 predicate - True if the 32-bit immediate is in the range
/// [0.65535].
def imm0_65535 : PatLeaf<(i32 imm), [{
return (uint32_t)N->getZExtValue() < 65536;
}]>;
class BinOpFrag<dag res> : PatFrag<(ops node:$LHS, node:$RHS), res>;
class UnOpFrag <dag res> : PatFrag<(ops node:$Src), res>;
//===----------------------------------------------------------------------===//
// Operand Definitions.
//
// Branch target.
def brtarget : Operand<OtherVT>;
// A list of registers separated by comma. Used by load/store multiple.
def reglist : Operand<i32> {
let PrintMethod = "printRegisterList";
}
// An operand for the CONSTPOOL_ENTRY pseudo-instruction.
def cpinst_operand : Operand<i32> {
let PrintMethod = "printCPInstOperand";
}
def jtblock_operand : Operand<i32> {
let PrintMethod = "printJTBlockOperand";
}
def jt2block_operand : Operand<i32> {
let PrintMethod = "printJT2BlockOperand";
}
// Local PC labels.
def pclabel : Operand<i32> {
let PrintMethod = "printPCLabel";
}
// shifter_operand operands: so_reg and so_imm.
def so_reg : Operand<i32>, // reg reg imm
ComplexPattern<i32, 3, "SelectShifterOperandReg",
[shl,srl,sra,rotr]> {
let PrintMethod = "printSORegOperand";
let MIOperandInfo = (ops GPR, GPR, i32imm);
}
// so_imm - Match a 32-bit shifter_operand immediate operand, which is an
// 8-bit immediate rotated by an arbitrary number of bits. so_imm values are
// represented in the imm field in the same 12-bit form that they are encoded
// into so_imm instructions: the 8-bit immediate is the least significant bits
// [bits 0-7], the 4-bit shift amount is the next 4 bits [bits 8-11].
def so_imm : Operand<i32>,
PatLeaf<(imm), [{
return ARM_AM::getSOImmVal(N->getZExtValue()) != -1;
}]> {
let PrintMethod = "printSOImmOperand";
}
// Break so_imm's up into two pieces. This handles immediates with up to 16
// bits set in them. This uses so_imm2part to match and so_imm2part_[12] to
// get the first/second pieces.
def so_imm2part : Operand<i32>,
PatLeaf<(imm), [{
return ARM_AM::isSOImmTwoPartVal((unsigned)N->getZExtValue());
}]> {
let PrintMethod = "printSOImm2PartOperand";
}
def so_imm2part_1 : SDNodeXForm<imm, [{
unsigned V = ARM_AM::getSOImmTwoPartFirst((unsigned)N->getZExtValue());
return CurDAG->getTargetConstant(V, MVT::i32);
}]>;
def so_imm2part_2 : SDNodeXForm<imm, [{
unsigned V = ARM_AM::getSOImmTwoPartSecond((unsigned)N->getZExtValue());
return CurDAG->getTargetConstant(V, MVT::i32);
}]>;
/// imm0_31 predicate - True if the 32-bit immediate is in the range [0,31].
def imm0_31 : Operand<i32>, PatLeaf<(imm), [{
return (int32_t)N->getZExtValue() < 32;
}]>;
// Define ARM specific addressing modes.
// addrmode2 := reg +/- reg shop imm
// addrmode2 := reg +/- imm12
//
def addrmode2 : Operand<i32>,
ComplexPattern<i32, 3, "SelectAddrMode2", []> {
let PrintMethod = "printAddrMode2Operand";
let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
}
def am2offset : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrMode2Offset", []> {
let PrintMethod = "printAddrMode2OffsetOperand";
let MIOperandInfo = (ops GPR, i32imm);
}
// addrmode3 := reg +/- reg
// addrmode3 := reg +/- imm8
//
def addrmode3 : Operand<i32>,
ComplexPattern<i32, 3, "SelectAddrMode3", []> {
let PrintMethod = "printAddrMode3Operand";
let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
}
def am3offset : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrMode3Offset", []> {
let PrintMethod = "printAddrMode3OffsetOperand";
let MIOperandInfo = (ops GPR, i32imm);
}
// addrmode4 := reg, <mode|W>
//
def addrmode4 : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrMode4", []> {
let PrintMethod = "printAddrMode4Operand";
let MIOperandInfo = (ops GPR, i32imm);
}
// addrmode5 := reg +/- imm8*4
//
def addrmode5 : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrMode5", []> {
let PrintMethod = "printAddrMode5Operand";
let MIOperandInfo = (ops GPR, i32imm);
}
// addrmode6 := reg with optional writeback
//
def addrmode6 : Operand<i32>,
ComplexPattern<i32, 4, "SelectAddrMode6", []> {
let PrintMethod = "printAddrMode6Operand";
let MIOperandInfo = (ops GPR:$addr, GPR:$upd, i32imm, i32imm);
}
// addrmodepc := pc + reg
//
def addrmodepc : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrModePC", []> {
let PrintMethod = "printAddrModePCOperand";
let MIOperandInfo = (ops GPR, i32imm);
}
def nohash_imm : Operand<i32> {
let PrintMethod = "printNoHashImmediate";
}
//===----------------------------------------------------------------------===//
include "ARMInstrFormats.td"
//===----------------------------------------------------------------------===//
// Multiclass helpers...
//
/// AsI1_bin_irs - Defines a set of (op r, {so_imm|r|so_reg}) patterns for a
/// binop that produces a value.
multiclass AsI1_bin_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
def ri : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm,
IIC_iALUi, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_imm:$b))]> {
let Inst{25} = 1;
}
def rr : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, GPR:$b), DPFrm,
IIC_iALUr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, GPR:$b))]> {
let Inst{11-4} = 0b00000000;
let Inst{25} = 0;
let isCommutable = Commutable;
}
def rs : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm,
IIC_iALUsr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_reg:$b))]> {
let Inst{25} = 0;
}
}
/// AI1_bin_s_irs - Similar to AsI1_bin_irs except it sets the 's' bit so the
/// instruction modifies the CPSR register.
let Defs = [CPSR] in {
multiclass AI1_bin_s_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
def ri : AI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm,
IIC_iALUi, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_imm:$b))]> {
let Inst{20} = 1;
let Inst{25} = 1;
}
def rr : AI1<opcod, (outs GPR:$dst), (ins GPR:$a, GPR:$b), DPFrm,
IIC_iALUr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, GPR:$b))]> {
let isCommutable = Commutable;
let Inst{11-4} = 0b00000000;
let Inst{20} = 1;
let Inst{25} = 0;
}
def rs : AI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm,
IIC_iALUsr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_reg:$b))]> {
let Inst{20} = 1;
let Inst{25} = 0;
}
}
}
/// AI1_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
/// patterns. Similar to AsI1_bin_irs except the instruction does not produce
/// a explicit result, only implicitly set CPSR.
let Defs = [CPSR] in {
multiclass AI1_cmp_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
def ri : AI1<opcod, (outs), (ins GPR:$a, so_imm:$b), DPFrm, IIC_iCMPi,
opc, "\t$a, $b",
[(opnode GPR:$a, so_imm:$b)]> {
let Inst{20} = 1;
let Inst{25} = 1;
}
def rr : AI1<opcod, (outs), (ins GPR:$a, GPR:$b), DPFrm, IIC_iCMPr,
opc, "\t$a, $b",
[(opnode GPR:$a, GPR:$b)]> {
let Inst{11-4} = 0b00000000;
let Inst{20} = 1;
let Inst{25} = 0;
let isCommutable = Commutable;
}
def rs : AI1<opcod, (outs), (ins GPR:$a, so_reg:$b), DPSoRegFrm, IIC_iCMPsr,
opc, "\t$a, $b",
[(opnode GPR:$a, so_reg:$b)]> {
let Inst{20} = 1;
let Inst{25} = 0;
}
}
}
/// AI_unary_rrot - A unary operation with two forms: one whose operand is a
/// register and one whose operand is a register rotated by 8/16/24.
/// FIXME: Remove the 'r' variant. Its rot_imm is zero.
multiclass AI_unary_rrot<bits<8> opcod, string opc, PatFrag opnode> {
def r : AExtI<opcod, (outs GPR:$dst), (ins GPR:$src),
IIC_iUNAr, opc, "\t$dst, $src",
[(set GPR:$dst, (opnode GPR:$src))]>,
Requires<[IsARM, HasV6]> {
let Inst{11-10} = 0b00;
let Inst{19-16} = 0b1111;
}
def r_rot : AExtI<opcod, (outs GPR:$dst), (ins GPR:$src, i32imm:$rot),
IIC_iUNAsi, opc, "\t$dst, $src, ror $rot",
[(set GPR:$dst, (opnode (rotr GPR:$src, rot_imm:$rot)))]>,
Requires<[IsARM, HasV6]> {
let Inst{19-16} = 0b1111;
}
}
/// AI_bin_rrot - A binary operation with two forms: one whose operand is a
/// register and one whose operand is a register rotated by 8/16/24.
multiclass AI_bin_rrot<bits<8> opcod, string opc, PatFrag opnode> {
def rr : AExtI<opcod, (outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS),
IIC_iALUr, opc, "\t$dst, $LHS, $RHS",
[(set GPR:$dst, (opnode GPR:$LHS, GPR:$RHS))]>,
Requires<[IsARM, HasV6]> {
let Inst{11-10} = 0b00;
}
def rr_rot : AExtI<opcod, (outs GPR:$dst), (ins GPR:$LHS, GPR:$RHS, i32imm:$rot),
IIC_iALUsi, opc, "\t$dst, $LHS, $RHS, ror $rot",
[(set GPR:$dst, (opnode GPR:$LHS,
(rotr GPR:$RHS, rot_imm:$rot)))]>,
Requires<[IsARM, HasV6]>;
}
/// AI1_adde_sube_irs - Define instructions and patterns for adde and sube.
let Uses = [CPSR] in {
multiclass AI1_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
def ri : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_imm:$b),
DPFrm, IIC_iALUi, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_imm:$b))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{25} = 1;
}
def rr : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
DPFrm, IIC_iALUr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, GPR:$b))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let isCommutable = Commutable;
let Inst{11-4} = 0b00000000;
let Inst{25} = 0;
}
def rs : AsI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
DPSoRegFrm, IIC_iALUsr, opc, "\t$dst, $a, $b",
[(set GPR:$dst, (opnode GPR:$a, so_reg:$b))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{25} = 0;
}
}
// Carry setting variants
let Defs = [CPSR] in {
multiclass AI1_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
def Sri : AXI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_imm:$b),
DPFrm, IIC_iALUi, !strconcat(opc, "\t$dst, $a, $b"),
[(set GPR:$dst, (opnode GPR:$a, so_imm:$b))]>,
Requires<[IsARM, CarryDefIsUsed]> {
let Defs = [CPSR];
let Inst{20} = 1;
let Inst{25} = 1;
}
def Srr : AXI1<opcod, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
DPFrm, IIC_iALUr, !strconcat(opc, "\t$dst, $a, $b"),
[(set GPR:$dst, (opnode GPR:$a, GPR:$b))]>,
Requires<[IsARM, CarryDefIsUsed]> {
let Defs = [CPSR];
let Inst{11-4} = 0b00000000;
let Inst{20} = 1;
let Inst{25} = 0;
}
def Srs : AXI1<opcod, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
DPSoRegFrm, IIC_iALUsr, !strconcat(opc, "\t$dst, $a, $b"),
[(set GPR:$dst, (opnode GPR:$a, so_reg:$b))]>,
Requires<[IsARM, CarryDefIsUsed]> {
let Defs = [CPSR];
let Inst{20} = 1;
let Inst{25} = 0;
}
}
}
}
//===----------------------------------------------------------------------===//
// Instructions
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Miscellaneous Instructions.
//
/// CONSTPOOL_ENTRY - This instruction represents a floating constant pool in
/// the function. The first operand is the ID# for this instruction, the second
/// is the index into the MachineConstantPool that this is, the third is the
/// size in bytes of this constant pool entry.
let neverHasSideEffects = 1, isNotDuplicable = 1 in
def CONSTPOOL_ENTRY :
PseudoInst<(outs), (ins cpinst_operand:$instid, cpinst_operand:$cpidx,
i32imm:$size), NoItinerary,
"${instid:label} ${cpidx:cpentry}", []>;
let Defs = [SP], Uses = [SP] in {
def ADJCALLSTACKUP :
PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2, pred:$p), NoItinerary,
"@ ADJCALLSTACKUP $amt1",
[(ARMcallseq_end timm:$amt1, timm:$amt2)]>;
def ADJCALLSTACKDOWN :
PseudoInst<(outs), (ins i32imm:$amt, pred:$p), NoItinerary,
"@ ADJCALLSTACKDOWN $amt",
[(ARMcallseq_start timm:$amt)]>;
}
def DWARF_LOC :
PseudoInst<(outs), (ins i32imm:$line, i32imm:$col, i32imm:$file), NoItinerary,
".loc $file, $line, $col",
[(dwarf_loc (i32 imm:$line), (i32 imm:$col), (i32 imm:$file))]>;
// Address computation and loads and stores in PIC mode.
let isNotDuplicable = 1 in {
def PICADD : AXI1<0b0100, (outs GPR:$dst), (ins GPR:$a, pclabel:$cp, pred:$p),
Pseudo, IIC_iALUr, "\n$cp:\n\tadd$p\t$dst, pc, $a",
[(set GPR:$dst, (ARMpic_add GPR:$a, imm:$cp))]>;
let AddedComplexity = 10 in {
let canFoldAsLoad = 1 in
def PICLDR : AXI2ldw<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
Pseudo, IIC_iLoadr, "\n${addr:label}:\n\tldr$p\t$dst, $addr",
[(set GPR:$dst, (load addrmodepc:$addr))]>;
def PICLDRH : AXI3ldh<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
Pseudo, IIC_iLoadr, "\n${addr:label}:\n\tldr${p}h\t$dst, $addr",
[(set GPR:$dst, (zextloadi16 addrmodepc:$addr))]>;
def PICLDRB : AXI2ldb<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
Pseudo, IIC_iLoadr, "\n${addr:label}:\n\tldr${p}b\t$dst, $addr",
[(set GPR:$dst, (zextloadi8 addrmodepc:$addr))]>;
def PICLDRSH : AXI3ldsh<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
Pseudo, IIC_iLoadr, "\n${addr:label}:\n\tldr${p}sh\t$dst, $addr",
[(set GPR:$dst, (sextloadi16 addrmodepc:$addr))]>;
def PICLDRSB : AXI3ldsb<(outs GPR:$dst), (ins addrmodepc:$addr, pred:$p),
Pseudo, IIC_iLoadr, "\n${addr:label}:\n\tldr${p}sb\t$dst, $addr",
[(set GPR:$dst, (sextloadi8 addrmodepc:$addr))]>;
}
let AddedComplexity = 10 in {
def PICSTR : AXI2stw<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
Pseudo, IIC_iStorer, "\n${addr:label}:\n\tstr$p\t$src, $addr",
[(store GPR:$src, addrmodepc:$addr)]>;
def PICSTRH : AXI3sth<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
Pseudo, IIC_iStorer, "\n${addr:label}:\n\tstrh${p}\t$src, $addr",
[(truncstorei16 GPR:$src, addrmodepc:$addr)]>;
def PICSTRB : AXI2stb<(outs), (ins GPR:$src, addrmodepc:$addr, pred:$p),
Pseudo, IIC_iStorer, "\n${addr:label}:\n\tstrb${p}\t$src, $addr",
[(truncstorei8 GPR:$src, addrmodepc:$addr)]>;
}
} // isNotDuplicable = 1
// LEApcrel - Load a pc-relative address into a register without offending the
// assembler.
def LEApcrel : AXI1<0x0, (outs GPR:$dst), (ins i32imm:$label, pred:$p),
Pseudo, IIC_iALUi,
!strconcat(!strconcat(".set ${:private}PCRELV${:uid}, ($label-(",
"${:private}PCRELL${:uid}+8))\n"),
!strconcat("${:private}PCRELL${:uid}:\n\t",
"add$p\t$dst, pc, #${:private}PCRELV${:uid}")),
[]>;
def LEApcrelJT : AXI1<0x0, (outs GPR:$dst),
(ins i32imm:$label, nohash_imm:$id, pred:$p),
Pseudo, IIC_iALUi,
!strconcat(!strconcat(".set ${:private}PCRELV${:uid}, "
"(${label}_${id}-(",
"${:private}PCRELL${:uid}+8))\n"),
!strconcat("${:private}PCRELL${:uid}:\n\t",
"add$p\t$dst, pc, #${:private}PCRELV${:uid}")),
[]> {
let Inst{25} = 1;
}
//===----------------------------------------------------------------------===//
// Control Flow Instructions.
//
let isReturn = 1, isTerminator = 1, isBarrier = 1 in
def BX_RET : AI<(outs), (ins), BrMiscFrm, IIC_Br,
"bx", "\tlr", [(ARMretflag)]> {
let Inst{3-0} = 0b1110;
let Inst{7-4} = 0b0001;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
}
// Indirect branches
let isBranch = 1, isTerminator = 1, isBarrier = 1, isIndirectBranch = 1 in {
def BRIND : AXI<(outs), (ins GPR:$dst), BrMiscFrm, IIC_Br, "bx\t$dst",
[(brind GPR:$dst)]> {
let Inst{7-4} = 0b0001;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
let Inst{31-28} = 0b1110;
}
}
// FIXME: remove when we have a way to marking a MI with these properties.
// FIXME: Should pc be an implicit operand like PICADD, etc?
let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
hasExtraDefRegAllocReq = 1 in
def LDM_RET : AXI4ld<(outs),
(ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
LdStMulFrm, IIC_Br, "ldm${addr:submode}${p}\t$addr, $wb",
[]>;
// On non-Darwin platforms R9 is callee-saved.
let isCall = 1,
Defs = [R0, R1, R2, R3, R12, LR,
D0, D1, D2, D3, D4, D5, D6, D7,
D16, D17, D18, D19, D20, D21, D22, D23,
D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
def BL : ABXI<0b1011, (outs), (ins i32imm:$func, variable_ops),
IIC_Br, "bl\t${func:call}",
[(ARMcall tglobaladdr:$func)]>,
Requires<[IsARM, IsNotDarwin]> {
let Inst{31-28} = 0b1110;
}
def BL_pred : ABI<0b1011, (outs), (ins i32imm:$func, variable_ops),
IIC_Br, "bl", "\t${func:call}",
[(ARMcall_pred tglobaladdr:$func)]>,
Requires<[IsARM, IsNotDarwin]>;
// ARMv5T and above
def BLX : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
IIC_Br, "blx\t$func",
[(ARMcall GPR:$func)]>,
Requires<[IsARM, HasV5T, IsNotDarwin]> {
let Inst{7-4} = 0b0011;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
}
// ARMv4T
def BX : ABXIx2<(outs), (ins GPR:$func, variable_ops),
IIC_Br, "mov\tlr, pc\n\tbx\t$func",
[(ARMcall_nolink GPR:$func)]>,
Requires<[IsARM, IsNotDarwin]> {
let Inst{7-4} = 0b0001;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
}
}
// On Darwin R9 is call-clobbered.
let isCall = 1,
Defs = [R0, R1, R2, R3, R9, R12, LR,
D0, D1, D2, D3, D4, D5, D6, D7,
D16, D17, D18, D19, D20, D21, D22, D23,
D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
def BLr9 : ABXI<0b1011, (outs), (ins i32imm:$func, variable_ops),
IIC_Br, "bl\t${func:call}",
[(ARMcall tglobaladdr:$func)]>, Requires<[IsARM, IsDarwin]> {
let Inst{31-28} = 0b1110;
}
def BLr9_pred : ABI<0b1011, (outs), (ins i32imm:$func, variable_ops),
IIC_Br, "bl", "\t${func:call}",
[(ARMcall_pred tglobaladdr:$func)]>,
Requires<[IsARM, IsDarwin]>;
// ARMv5T and above
def BLXr9 : AXI<(outs), (ins GPR:$func, variable_ops), BrMiscFrm,
IIC_Br, "blx\t$func",
[(ARMcall GPR:$func)]>, Requires<[IsARM, HasV5T, IsDarwin]> {
let Inst{7-4} = 0b0011;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
}
// ARMv4T
def BXr9 : ABXIx2<(outs), (ins GPR:$func, variable_ops),
IIC_Br, "mov\tlr, pc\n\tbx\t$func",
[(ARMcall_nolink GPR:$func)]>, Requires<[IsARM, IsDarwin]> {
let Inst{7-4} = 0b0001;
let Inst{19-8} = 0b111111111111;
let Inst{27-20} = 0b00010010;
}
}
let isBranch = 1, isTerminator = 1 in {
// B is "predicable" since it can be xformed into a Bcc.
let isBarrier = 1 in {
let isPredicable = 1 in
def B : ABXI<0b1010, (outs), (ins brtarget:$target), IIC_Br,
"b\t$target", [(br bb:$target)]>;
let isNotDuplicable = 1, isIndirectBranch = 1 in {
def BR_JTr : JTI<(outs), (ins GPR:$target, jtblock_operand:$jt, i32imm:$id),
IIC_Br, "mov\tpc, $target \n$jt",
[(ARMbrjt GPR:$target, tjumptable:$jt, imm:$id)]> {
let Inst{15-12} = 0b1111;
let Inst{20} = 0; // S Bit
let Inst{24-21} = 0b1101;
let Inst{27-25} = 0b000;
}
def BR_JTm : JTI<(outs),
(ins addrmode2:$target, jtblock_operand:$jt, i32imm:$id),
IIC_Br, "ldr\tpc, $target \n$jt",
[(ARMbrjt (i32 (load addrmode2:$target)), tjumptable:$jt,
imm:$id)]> {
let Inst{15-12} = 0b1111;
let Inst{20} = 1; // L bit
let Inst{21} = 0; // W bit
let Inst{22} = 0; // B bit
let Inst{24} = 1; // P bit
let Inst{27-25} = 0b011;
}
def BR_JTadd : JTI<(outs),
(ins GPR:$target, GPR:$idx, jtblock_operand:$jt, i32imm:$id),
IIC_Br, "add\tpc, $target, $idx \n$jt",
[(ARMbrjt (add GPR:$target, GPR:$idx), tjumptable:$jt,
imm:$id)]> {
let Inst{15-12} = 0b1111;
let Inst{20} = 0; // S bit
let Inst{24-21} = 0b0100;
let Inst{27-25} = 0b000;
}
} // isNotDuplicable = 1, isIndirectBranch = 1
} // isBarrier = 1
// FIXME: should be able to write a pattern for ARMBrcond, but can't use
// a two-value operand where a dag node expects two operands. :(
def Bcc : ABI<0b1010, (outs), (ins brtarget:$target),
IIC_Br, "b", "\t$target",
[/*(ARMbrcond bb:$target, imm:$cc, CCR:$ccr)*/]>;
}
//===----------------------------------------------------------------------===//
// Load / store Instructions.
//
// Load
let canFoldAsLoad = 1, isReMaterializable = 1 in
def LDR : AI2ldw<(outs GPR:$dst), (ins addrmode2:$addr), LdFrm, IIC_iLoadr,
"ldr", "\t$dst, $addr",
[(set GPR:$dst, (load addrmode2:$addr))]>;
// Special LDR for loads from non-pc-relative constpools.
let canFoldAsLoad = 1, mayLoad = 1, isReMaterializable = 1 in
def LDRcp : AI2ldw<(outs GPR:$dst), (ins addrmode2:$addr), LdFrm, IIC_iLoadr,
"ldr", "\t$dst, $addr", []>;
// Loads with zero extension
def LDRH : AI3ldh<(outs GPR:$dst), (ins addrmode3:$addr), LdMiscFrm,
IIC_iLoadr, "ldrh", "\t$dst, $addr",
[(set GPR:$dst, (zextloadi16 addrmode3:$addr))]>;
def LDRB : AI2ldb<(outs GPR:$dst), (ins addrmode2:$addr), LdFrm,
IIC_iLoadr, "ldrb", "\t$dst, $addr",
[(set GPR:$dst, (zextloadi8 addrmode2:$addr))]>;
// Loads with sign extension
def LDRSH : AI3ldsh<(outs GPR:$dst), (ins addrmode3:$addr), LdMiscFrm,
IIC_iLoadr, "ldrsh", "\t$dst, $addr",
[(set GPR:$dst, (sextloadi16 addrmode3:$addr))]>;
def LDRSB : AI3ldsb<(outs GPR:$dst), (ins addrmode3:$addr), LdMiscFrm,
IIC_iLoadr, "ldrsb", "\t$dst, $addr",
[(set GPR:$dst, (sextloadi8 addrmode3:$addr))]>;
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in {
// Load doubleword
def LDRD : AI3ldd<(outs GPR:$dst1, GPR:$dst2), (ins addrmode3:$addr), LdMiscFrm,
IIC_iLoadr, "ldrd", "\t$dst1, $addr",
[]>, Requires<[IsARM, HasV5TE]>;
// Indexed loads
def LDR_PRE : AI2ldwpr<(outs GPR:$dst, GPR:$base_wb),
(ins addrmode2:$addr), LdFrm, IIC_iLoadru,
"ldr", "\t$dst, $addr!", "$addr.base = $base_wb", []>;
def LDR_POST : AI2ldwpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base, am2offset:$offset), LdFrm, IIC_iLoadru,
"ldr", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
def LDRH_PRE : AI3ldhpr<(outs GPR:$dst, GPR:$base_wb),
(ins addrmode3:$addr), LdMiscFrm, IIC_iLoadru,
"ldrh", "\t$dst, $addr!", "$addr.base = $base_wb", []>;
def LDRH_POST : AI3ldhpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am3offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrh", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
def LDRB_PRE : AI2ldbpr<(outs GPR:$dst, GPR:$base_wb),
(ins addrmode2:$addr), LdFrm, IIC_iLoadru,
"ldrb", "\t$dst, $addr!", "$addr.base = $base_wb", []>;
def LDRB_POST : AI2ldbpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am2offset:$offset), LdFrm, IIC_iLoadru,
"ldrb", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
def LDRSH_PRE : AI3ldshpr<(outs GPR:$dst, GPR:$base_wb),
(ins addrmode3:$addr), LdMiscFrm, IIC_iLoadru,
"ldrsh", "\t$dst, $addr!", "$addr.base = $base_wb", []>;
def LDRSH_POST: AI3ldshpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am3offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrsh", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
def LDRSB_PRE : AI3ldsbpr<(outs GPR:$dst, GPR:$base_wb),
(ins addrmode3:$addr), LdMiscFrm, IIC_iLoadru,
"ldrsb", "\t$dst, $addr!", "$addr.base = $base_wb", []>;
def LDRSB_POST: AI3ldsbpo<(outs GPR:$dst, GPR:$base_wb),
(ins GPR:$base,am3offset:$offset), LdMiscFrm, IIC_iLoadru,
"ldrsb", "\t$dst, [$base], $offset", "$base = $base_wb", []>;
}
// Store
def STR : AI2stw<(outs), (ins GPR:$src, addrmode2:$addr), StFrm, IIC_iStorer,
"str", "\t$src, $addr",
[(store GPR:$src, addrmode2:$addr)]>;
// Stores with truncate
def STRH : AI3sth<(outs), (ins GPR:$src, addrmode3:$addr), StMiscFrm, IIC_iStorer,
"strh", "\t$src, $addr",
[(truncstorei16 GPR:$src, addrmode3:$addr)]>;
def STRB : AI2stb<(outs), (ins GPR:$src, addrmode2:$addr), StFrm, IIC_iStorer,
"strb", "\t$src, $addr",
[(truncstorei8 GPR:$src, addrmode2:$addr)]>;
// Store doubleword
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
def STRD : AI3std<(outs), (ins GPR:$src1, GPR:$src2, addrmode3:$addr),
StMiscFrm, IIC_iStorer,
"strd", "\t$src1, $addr", []>, Requires<[IsARM, HasV5TE]>;
// Indexed stores
def STR_PRE : AI2stwpr<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base, am2offset:$offset),
StFrm, IIC_iStoreru,
"str", "\t$src, [$base, $offset]!", "$base = $base_wb",
[(set GPR:$base_wb,
(pre_store GPR:$src, GPR:$base, am2offset:$offset))]>;
def STR_POST : AI2stwpo<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base,am2offset:$offset),
StFrm, IIC_iStoreru,
"str", "\t$src, [$base], $offset", "$base = $base_wb",
[(set GPR:$base_wb,
(post_store GPR:$src, GPR:$base, am2offset:$offset))]>;
def STRH_PRE : AI3sthpr<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base,am3offset:$offset),
StMiscFrm, IIC_iStoreru,
"strh", "\t$src, [$base, $offset]!", "$base = $base_wb",
[(set GPR:$base_wb,
(pre_truncsti16 GPR:$src, GPR:$base,am3offset:$offset))]>;
def STRH_POST: AI3sthpo<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base,am3offset:$offset),
StMiscFrm, IIC_iStoreru,
"strh", "\t$src, [$base], $offset", "$base = $base_wb",
[(set GPR:$base_wb, (post_truncsti16 GPR:$src,
GPR:$base, am3offset:$offset))]>;
def STRB_PRE : AI2stbpr<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base,am2offset:$offset),
StFrm, IIC_iStoreru,
"strb", "\t$src, [$base, $offset]!", "$base = $base_wb",
[(set GPR:$base_wb, (pre_truncsti8 GPR:$src,
GPR:$base, am2offset:$offset))]>;
def STRB_POST: AI2stbpo<(outs GPR:$base_wb),
(ins GPR:$src, GPR:$base,am2offset:$offset),
StFrm, IIC_iStoreru,
"strb", "\t$src, [$base], $offset", "$base = $base_wb",
[(set GPR:$base_wb, (post_truncsti8 GPR:$src,
GPR:$base, am2offset:$offset))]>;
//===----------------------------------------------------------------------===//
// Load / store multiple Instructions.
//
let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
def LDM : AXI4ld<(outs),
(ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
LdStMulFrm, IIC_iLoadm, "ldm${addr:submode}${p}\t$addr, $wb",
[]>;
let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
def STM : AXI4st<(outs),
(ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
LdStMulFrm, IIC_iStorem, "stm${addr:submode}${p}\t$addr, $wb",
[]>;
//===----------------------------------------------------------------------===//
// Move Instructions.
//
let neverHasSideEffects = 1 in
def MOVr : AsI1<0b1101, (outs GPR:$dst), (ins GPR:$src), DPFrm, IIC_iMOVr,
"mov", "\t$dst, $src", []>, UnaryDP {
let Inst{11-4} = 0b00000000;
let Inst{25} = 0;
}
def MOVs : AsI1<0b1101, (outs GPR:$dst), (ins so_reg:$src),
DPSoRegFrm, IIC_iMOVsr,
"mov", "\t$dst, $src", [(set GPR:$dst, so_reg:$src)]>, UnaryDP {
let Inst{25} = 0;
}
let isReMaterializable = 1, isAsCheapAsAMove = 1 in
def MOVi : AsI1<0b1101, (outs GPR:$dst), (ins so_imm:$src), DPFrm, IIC_iMOVi,
"mov", "\t$dst, $src", [(set GPR:$dst, so_imm:$src)]>, UnaryDP {
let Inst{25} = 1;
}
let isReMaterializable = 1, isAsCheapAsAMove = 1 in
def MOVi16 : AI1<0b1000, (outs GPR:$dst), (ins i32imm:$src),
DPFrm, IIC_iMOVi,
"movw", "\t$dst, $src",
[(set GPR:$dst, imm0_65535:$src)]>,
Requires<[IsARM, HasV6T2]> {
let Inst{20} = 0;
let Inst{25} = 1;
}
let Constraints = "$src = $dst" in
def MOVTi16 : AI1<0b1010, (outs GPR:$dst), (ins GPR:$src, i32imm:$imm),
DPFrm, IIC_iMOVi,
"movt", "\t$dst, $imm",
[(set GPR:$dst,
(or (and GPR:$src, 0xffff),
lo16AllZero:$imm))]>, UnaryDP,
Requires<[IsARM, HasV6T2]> {
let Inst{20} = 0;
let Inst{25} = 1;
}
def : ARMPat<(or GPR:$src, 0xffff0000), (MOVTi16 GPR:$src, 0xffff)>,
Requires<[IsARM, HasV6T2]>;
let Uses = [CPSR] in
def MOVrx : AsI1<0b1101, (outs GPR:$dst), (ins GPR:$src), Pseudo, IIC_iMOVsi,
"mov", "\t$dst, $src, rrx",
[(set GPR:$dst, (ARMrrx GPR:$src))]>, UnaryDP;
// These aren't really mov instructions, but we have to define them this way
// due to flag operands.
let Defs = [CPSR] in {
def MOVsrl_flag : AI1<0b1101, (outs GPR:$dst), (ins GPR:$src), Pseudo,
IIC_iMOVsi, "movs", "\t$dst, $src, lsr #1",
[(set GPR:$dst, (ARMsrl_flag GPR:$src))]>, UnaryDP;
def MOVsra_flag : AI1<0b1101, (outs GPR:$dst), (ins GPR:$src), Pseudo,
IIC_iMOVsi, "movs", "\t$dst, $src, asr #1",
[(set GPR:$dst, (ARMsra_flag GPR:$src))]>, UnaryDP;
}
//===----------------------------------------------------------------------===//
// Extend Instructions.
//
// Sign extenders
defm SXTB : AI_unary_rrot<0b01101010,
"sxtb", UnOpFrag<(sext_inreg node:$Src, i8)>>;
defm SXTH : AI_unary_rrot<0b01101011,
"sxth", UnOpFrag<(sext_inreg node:$Src, i16)>>;
defm SXTAB : AI_bin_rrot<0b01101010,
"sxtab", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
defm SXTAH : AI_bin_rrot<0b01101011,
"sxtah", BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
// TODO: SXT(A){B|H}16
// Zero extenders
let AddedComplexity = 16 in {
defm UXTB : AI_unary_rrot<0b01101110,
"uxtb" , UnOpFrag<(and node:$Src, 0x000000FF)>>;
defm UXTH : AI_unary_rrot<0b01101111,
"uxth" , UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
defm UXTB16 : AI_unary_rrot<0b01101100,
"uxtb16", UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
def : ARMV6Pat<(and (shl GPR:$Src, (i32 8)), 0xFF00FF),
(UXTB16r_rot GPR:$Src, 24)>;
def : ARMV6Pat<(and (srl GPR:$Src, (i32 8)), 0xFF00FF),
(UXTB16r_rot GPR:$Src, 8)>;
defm UXTAB : AI_bin_rrot<0b01101110, "uxtab",
BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
defm UXTAH : AI_bin_rrot<0b01101111, "uxtah",
BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
}
// This isn't safe in general, the add is two 16-bit units, not a 32-bit add.
//defm UXTAB16 : xxx<"uxtab16", 0xff00ff>;
// TODO: UXT(A){B|H}16
def SBFX : I<(outs GPR:$dst),
(ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iALUi,
"sbfx", "\t$dst, $src, $lsb, $width", "", []>,
Requires<[IsARM, HasV6T2]> {
let Inst{27-21} = 0b0111101;
let Inst{6-4} = 0b101;
}
def UBFX : I<(outs GPR:$dst),
(ins GPR:$src, imm0_31:$lsb, imm0_31:$width),
AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iALUi,
"ubfx", "\t$dst, $src, $lsb, $width", "", []>,
Requires<[IsARM, HasV6T2]> {
let Inst{27-21} = 0b0111111;
let Inst{6-4} = 0b101;
}
//===----------------------------------------------------------------------===//
// Arithmetic Instructions.
//
defm ADD : AsI1_bin_irs<0b0100, "add",
BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
defm SUB : AsI1_bin_irs<0b0010, "sub",
BinOpFrag<(sub node:$LHS, node:$RHS)>>;
// ADD and SUB with 's' bit set.
defm ADDS : AI1_bin_s_irs<0b0100, "adds",
BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
defm SUBS : AI1_bin_s_irs<0b0010, "subs",
BinOpFrag<(subc node:$LHS, node:$RHS)>>;
defm ADC : AI1_adde_sube_irs<0b0101, "adc",
BinOpFrag<(adde node:$LHS, node:$RHS)>, 1>;
defm SBC : AI1_adde_sube_irs<0b0110, "sbc",
BinOpFrag<(sube node:$LHS, node:$RHS)>>;
defm ADCS : AI1_adde_sube_s_irs<0b0101, "adcs",
BinOpFrag<(adde node:$LHS, node:$RHS)>, 1>;
defm SBCS : AI1_adde_sube_s_irs<0b0110, "sbcs",
BinOpFrag<(sube node:$LHS, node:$RHS)>>;
// These don't define reg/reg forms, because they are handled above.
def RSBri : AsI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm,
IIC_iALUi, "rsb", "\t$dst, $a, $b",
[(set GPR:$dst, (sub so_imm:$b, GPR:$a))]> {
let Inst{25} = 1;
}
def RSBrs : AsI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm,
IIC_iALUsr, "rsb", "\t$dst, $a, $b",
[(set GPR:$dst, (sub so_reg:$b, GPR:$a))]> {
let Inst{25} = 0;
}
// RSB with 's' bit set.
let Defs = [CPSR] in {
def RSBSri : AI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_imm:$b), DPFrm,
IIC_iALUi, "rsbs", "\t$dst, $a, $b",
[(set GPR:$dst, (subc so_imm:$b, GPR:$a))]> {
let Inst{20} = 1;
let Inst{25} = 1;
}
def RSBSrs : AI1<0b0011, (outs GPR:$dst), (ins GPR:$a, so_reg:$b), DPSoRegFrm,
IIC_iALUsr, "rsbs", "\t$dst, $a, $b",
[(set GPR:$dst, (subc so_reg:$b, GPR:$a))]> {
let Inst{20} = 1;
let Inst{25} = 0;
}
}
let Uses = [CPSR] in {
def RSCri : AsI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_imm:$b),
DPFrm, IIC_iALUi, "rsc", "\t$dst, $a, $b",
[(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{25} = 1;
}
def RSCrs : AsI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
DPSoRegFrm, IIC_iALUsr, "rsc", "\t$dst, $a, $b",
[(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{25} = 0;
}
}
// FIXME: Allow these to be predicated.
let Defs = [CPSR], Uses = [CPSR] in {
def RSCSri : AXI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_imm:$b),
DPFrm, IIC_iALUi, "rscs\t$dst, $a, $b",
[(set GPR:$dst, (sube so_imm:$b, GPR:$a))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{20} = 1;
let Inst{25} = 1;
}
def RSCSrs : AXI1<0b0111, (outs GPR:$dst), (ins GPR:$a, so_reg:$b),
DPSoRegFrm, IIC_iALUsr, "rscs\t$dst, $a, $b",
[(set GPR:$dst, (sube so_reg:$b, GPR:$a))]>,
Requires<[IsARM, CarryDefIsUnused]> {
let Inst{20} = 1;
let Inst{25} = 0;
}
}
// (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
def : ARMPat<(add GPR:$src, so_imm_neg:$imm),
(SUBri GPR:$src, so_imm_neg:$imm)>;
//def : ARMPat<(addc GPR:$src, so_imm_neg:$imm),
// (SUBSri GPR:$src, so_imm_neg:$imm)>;
//def : ARMPat<(adde GPR:$src, so_imm_neg:$imm),
// (SBCri GPR:$src, so_imm_neg:$imm)>;
// Note: These are implemented in C++ code, because they have to generate
// ADD/SUBrs instructions, which use a complex pattern that a xform function
// cannot produce.
// (mul X, 2^n+1) -> (add (X << n), X)
// (mul X, 2^n-1) -> (rsb X, (X << n))
//===----------------------------------------------------------------------===//
// Bitwise Instructions.
//
defm AND : AsI1_bin_irs<0b0000, "and",
BinOpFrag<(and node:$LHS, node:$RHS)>, 1>;
defm ORR : AsI1_bin_irs<0b1100, "orr",
BinOpFrag<(or node:$LHS, node:$RHS)>, 1>;
defm EOR : AsI1_bin_irs<0b0001, "eor",
BinOpFrag<(xor node:$LHS, node:$RHS)>, 1>;
defm BIC : AsI1_bin_irs<0b1110, "bic",
BinOpFrag<(and node:$LHS, (not node:$RHS))>>;
def BFC : I<(outs GPR:$dst), (ins GPR:$src, bf_inv_mask_imm:$imm),
AddrMode1, Size4Bytes, IndexModeNone, DPFrm, IIC_iUNAsi,
"bfc", "\t$dst, $imm", "$src = $dst",
[(set GPR:$dst, (and GPR:$src, bf_inv_mask_imm:$imm))]>,
Requires<[IsARM, HasV6T2]> {
let Inst{27-21} = 0b0111110;
let Inst{6-0} = 0b0011111;
}
def MVNr : AsI1<0b1111, (outs GPR:$dst), (ins GPR:$src), DPFrm, IIC_iMOVr,
"mvn", "\t$dst, $src",
[(set GPR:$dst, (not GPR:$src))]>, UnaryDP {
let Inst{11-4} = 0b00000000;
}
def MVNs : AsI1<0b1111, (outs GPR:$dst), (ins so_reg:$src), DPSoRegFrm,
IIC_iMOVsr, "mvn", "\t$dst, $src",
[(set GPR:$dst, (not so_reg:$src))]>, UnaryDP;
let isReMaterializable = 1, isAsCheapAsAMove = 1 in
def MVNi : AsI1<0b1111, (outs GPR:$dst), (ins so_imm:$imm), DPFrm,
IIC_iMOVi, "mvn", "\t$dst, $imm",
[(set GPR:$dst, so_imm_not:$imm)]>,UnaryDP {
let Inst{25} = 1;
}
def : ARMPat<(and GPR:$src, so_imm_not:$imm),
(BICri GPR:$src, so_imm_not:$imm)>;
//===----------------------------------------------------------------------===//
// Multiply Instructions.
//
let isCommutable = 1 in
def MUL : AsMul1I<0b0000000, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, "mul", "\t$dst, $a, $b",
[(set GPR:$dst, (mul GPR:$a, GPR:$b))]>;
def MLA : AsMul1I<0b0000001, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
IIC_iMAC32, "mla", "\t$dst, $a, $b, $c",
[(set GPR:$dst, (add (mul GPR:$a, GPR:$b), GPR:$c))]>;
def MLS : AMul1I<0b0000011, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
IIC_iMAC32, "mls", "\t$dst, $a, $b, $c",
[(set GPR:$dst, (sub GPR:$c, (mul GPR:$a, GPR:$b)))]>,
Requires<[IsARM, HasV6T2]>;
// Extra precision multiplies with low / high results
let neverHasSideEffects = 1 in {
let isCommutable = 1 in {
def SMULL : AsMul1I<0b0000110, (outs GPR:$ldst, GPR:$hdst),
(ins GPR:$a, GPR:$b), IIC_iMUL64,
"smull", "\t$ldst, $hdst, $a, $b", []>;
def UMULL : AsMul1I<0b0000100, (outs GPR:$ldst, GPR:$hdst),
(ins GPR:$a, GPR:$b), IIC_iMUL64,
"umull", "\t$ldst, $hdst, $a, $b", []>;
}
// Multiply + accumulate
def SMLAL : AsMul1I<0b0000111, (outs GPR:$ldst, GPR:$hdst),
(ins GPR:$a, GPR:$b), IIC_iMAC64,
"smlal", "\t$ldst, $hdst, $a, $b", []>;
def UMLAL : AsMul1I<0b0000101, (outs GPR:$ldst, GPR:$hdst),
(ins GPR:$a, GPR:$b), IIC_iMAC64,
"umlal", "\t$ldst, $hdst, $a, $b", []>;
def UMAAL : AMul1I <0b0000010, (outs GPR:$ldst, GPR:$hdst),
(ins GPR:$a, GPR:$b), IIC_iMAC64,
"umaal", "\t$ldst, $hdst, $a, $b", []>,
Requires<[IsARM, HasV6]>;
} // neverHasSideEffects
// Most significant word multiply
def SMMUL : AMul2I <0b0111010, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, "smmul", "\t$dst, $a, $b",
[(set GPR:$dst, (mulhs GPR:$a, GPR:$b))]>,
Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b0001;
let Inst{15-12} = 0b1111;
}
def SMMLA : AMul2I <0b0111010, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
IIC_iMAC32, "smmla", "\t$dst, $a, $b, $c",
[(set GPR:$dst, (add (mulhs GPR:$a, GPR:$b), GPR:$c))]>,
Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b0001;
}
def SMMLS : AMul2I <0b0111010, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$c),
IIC_iMAC32, "smmls", "\t$dst, $a, $b, $c",
[(set GPR:$dst, (sub GPR:$c, (mulhs GPR:$a, GPR:$b)))]>,
Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b1101;
}
multiclass AI_smul<string opc, PatFrag opnode> {
def BB : AMulxyI<0b0001011, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, !strconcat(opc, "bb"), "\t$dst, $a, $b",
[(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
(sext_inreg GPR:$b, i16)))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 0;
}
def BT : AMulxyI<0b0001011, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, !strconcat(opc, "bt"), "\t$dst, $a, $b",
[(set GPR:$dst, (opnode (sext_inreg GPR:$a, i16),
(sra GPR:$b, (i32 16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 1;
}
def TB : AMulxyI<0b0001011, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, !strconcat(opc, "tb"), "\t$dst, $a, $b",
[(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
(sext_inreg GPR:$b, i16)))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 0;
}
def TT : AMulxyI<0b0001011, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL32, !strconcat(opc, "tt"), "\t$dst, $a, $b",
[(set GPR:$dst, (opnode (sra GPR:$a, (i32 16)),
(sra GPR:$b, (i32 16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 1;
}
def WB : AMulxyI<0b0001001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL16, !strconcat(opc, "wb"), "\t$dst, $a, $b",
[(set GPR:$dst, (sra (opnode GPR:$a,
(sext_inreg GPR:$b, i16)), (i32 16)))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 0;
}
def WT : AMulxyI<0b0001001, (outs GPR:$dst), (ins GPR:$a, GPR:$b),
IIC_iMUL16, !strconcat(opc, "wt"), "\t$dst, $a, $b",
[(set GPR:$dst, (sra (opnode GPR:$a,
(sra GPR:$b, (i32 16))), (i32 16)))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 1;
}
}
multiclass AI_smla<string opc, PatFrag opnode> {
def BB : AMulxyI<0b0001000, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "bb"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc,
(opnode (sext_inreg GPR:$a, i16),
(sext_inreg GPR:$b, i16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 0;
}
def BT : AMulxyI<0b0001000, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "bt"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc, (opnode (sext_inreg GPR:$a, i16),
(sra GPR:$b, (i32 16)))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 1;
}
def TB : AMulxyI<0b0001000, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "tb"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
(sext_inreg GPR:$b, i16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 0;
}
def TT : AMulxyI<0b0001000, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "tt"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc, (opnode (sra GPR:$a, (i32 16)),
(sra GPR:$b, (i32 16)))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 1;
let Inst{6} = 1;
}
def WB : AMulxyI<0b0001001, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "wb"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
(sext_inreg GPR:$b, i16)), (i32 16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 0;
}
def WT : AMulxyI<0b0001001, (outs GPR:$dst), (ins GPR:$a, GPR:$b, GPR:$acc),
IIC_iMAC16, !strconcat(opc, "wt"), "\t$dst, $a, $b, $acc",
[(set GPR:$dst, (add GPR:$acc, (sra (opnode GPR:$a,
(sra GPR:$b, (i32 16))), (i32 16))))]>,
Requires<[IsARM, HasV5TE]> {
let Inst{5} = 0;
let Inst{6} = 1;
}
}
defm SMUL : AI_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
defm SMLA : AI_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
// TODO: Halfword multiple accumulate long: SMLAL<x><y>
// TODO: Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
//===----------------------------------------------------------------------===//
// Misc. Arithmetic Instructions.
//
def CLZ : AMiscA1I<0b000010110, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
"clz", "\t$dst, $src",
[(set GPR:$dst, (ctlz GPR:$src))]>, Requires<[IsARM, HasV5T]> {
let Inst{7-4} = 0b0001;
let Inst{11-8} = 0b1111;
let Inst{19-16} = 0b1111;
}
def REV : AMiscA1I<0b01101011, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
"rev", "\t$dst, $src",
[(set GPR:$dst, (bswap GPR:$src))]>, Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b0011;
let Inst{11-8} = 0b1111;
let Inst{19-16} = 0b1111;
}
def REV16 : AMiscA1I<0b01101011, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
"rev16", "\t$dst, $src",
[(set GPR:$dst,
(or (and (srl GPR:$src, (i32 8)), 0xFF),
(or (and (shl GPR:$src, (i32 8)), 0xFF00),
(or (and (srl GPR:$src, (i32 8)), 0xFF0000),
(and (shl GPR:$src, (i32 8)), 0xFF000000)))))]>,
Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b1011;
let Inst{11-8} = 0b1111;
let Inst{19-16} = 0b1111;
}
def REVSH : AMiscA1I<0b01101111, (outs GPR:$dst), (ins GPR:$src), IIC_iUNAr,
"revsh", "\t$dst, $src",
[(set GPR:$dst,
(sext_inreg
(or (srl (and GPR:$src, 0xFF00), (i32 8)),
(shl GPR:$src, (i32 8))), i16))]>,
Requires<[IsARM, HasV6]> {
let Inst{7-4} = 0b1011;
let Inst{11-8} = 0b1111;
let Inst{19-16} = 0b1111;
}
def PKHBT : AMiscA1I<0b01101000, (outs GPR:$dst),
(ins GPR:$src1, GPR:$src2, i32imm:$shamt),
IIC_iALUsi, "pkhbt", "\t$dst, $src1, $src2, LSL $shamt",
[(set GPR:$dst, (or (and GPR:$src1, 0xFFFF),
(and (shl GPR:$src2, (i32 imm:$shamt)),
0xFFFF0000)))]>,
Requires<[IsARM, HasV6]> {
let Inst{6-4} = 0b001;
}
// Alternate cases for PKHBT where identities eliminate some nodes.
def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF), (and GPR:$src2, 0xFFFF0000)),
(PKHBT GPR:$src1, GPR:$src2, 0)>;
def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF), (shl GPR:$src2, imm16_31:$shamt)),
(PKHBT GPR:$src1, GPR:$src2, imm16_31:$shamt)>;
def PKHTB : AMiscA1I<0b01101000, (outs GPR:$dst),
(ins GPR:$src1, GPR:$src2, i32imm:$shamt),
IIC_iALUsi, "pkhtb", "\t$dst, $src1, $src2, ASR $shamt",
[(set GPR:$dst, (or (and GPR:$src1, 0xFFFF0000),
(and (sra GPR:$src2, imm16_31:$shamt),
0xFFFF)))]>, Requires<[IsARM, HasV6]> {
let Inst{6-4} = 0b101;
}
// Alternate cases for PKHTB where identities eliminate some nodes. Note that
// a shift amount of 0 is *not legal* here, it is PKHBT instead.
def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000), (srl GPR:$src2, (i32 16))),
(PKHTB GPR:$src1, GPR:$src2, 16)>;
def : ARMV6Pat<(or (and GPR:$src1, 0xFFFF0000),
(and (srl GPR:$src2, imm1_15:$shamt), 0xFFFF)),
(PKHTB GPR:$src1, GPR:$src2, imm1_15:$shamt)>;
//===----------------------------------------------------------------------===//
// Comparison Instructions...
//
defm CMP : AI1_cmp_irs<0b1010, "cmp",
BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
defm CMN : AI1_cmp_irs<0b1011, "cmn",
BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
// Note that TST/TEQ don't set all the same flags that CMP does!
defm TST : AI1_cmp_irs<0b1000, "tst",
BinOpFrag<(ARMcmpZ (and node:$LHS, node:$RHS), 0)>, 1>;
defm TEQ : AI1_cmp_irs<0b1001, "teq",
BinOpFrag<(ARMcmpZ (xor node:$LHS, node:$RHS), 0)>, 1>;
defm CMPz : AI1_cmp_irs<0b1010, "cmp",
BinOpFrag<(ARMcmpZ node:$LHS, node:$RHS)>>;
defm CMNz : AI1_cmp_irs<0b1011, "cmn",
BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
def : ARMPat<(ARMcmp GPR:$src, so_imm_neg:$imm),
(CMNri GPR:$src, so_imm_neg:$imm)>;
def : ARMPat<(ARMcmpZ GPR:$src, so_imm_neg:$imm),
(CMNri GPR:$src, so_imm_neg:$imm)>;
// Conditional moves
// FIXME: should be able to write a pattern for ARMcmov, but can't use
// a two-value operand where a dag node expects two operands. :(
def MOVCCr : AI1<0b1101, (outs GPR:$dst), (ins GPR:$false, GPR:$true), DPFrm,
IIC_iCMOVr, "mov", "\t$dst, $true",
[/*(set GPR:$dst, (ARMcmov GPR:$false, GPR:$true, imm:$cc, CCR:$ccr))*/]>,
RegConstraint<"$false = $dst">, UnaryDP {
let Inst{11-4} = 0b00000000;
let Inst{25} = 0;
}
def MOVCCs : AI1<0b1101, (outs GPR:$dst),
(ins GPR:$false, so_reg:$true), DPSoRegFrm, IIC_iCMOVsr,
"mov", "\t$dst, $true",
[/*(set GPR:$dst, (ARMcmov GPR:$false, so_reg:$true, imm:$cc, CCR:$ccr))*/]>,
RegConstraint<"$false = $dst">, UnaryDP {
let Inst{25} = 0;
}
def MOVCCi : AI1<0b1101, (outs GPR:$dst),
(ins GPR:$false, so_imm:$true), DPFrm, IIC_iCMOVi,
"mov", "\t$dst, $true",
[/*(set GPR:$dst, (ARMcmov GPR:$false, so_imm:$true, imm:$cc, CCR:$ccr))*/]>,
RegConstraint<"$false = $dst">, UnaryDP {
let Inst{25} = 1;
}
//===----------------------------------------------------------------------===//
// TLS Instructions
//
// __aeabi_read_tp preserves the registers r1-r3.
let isCall = 1,
Defs = [R0, R12, LR, CPSR] in {
def TPsoft : ABXI<0b1011, (outs), (ins), IIC_Br,
"bl\t__aeabi_read_tp",
[(set R0, ARMthread_pointer)]>;
}
//===----------------------------------------------------------------------===//
// SJLJ Exception handling intrinsics
// eh_sjlj_setjmp() is an instruction sequence to store the return
// address and save #0 in R0 for the non-longjmp case.
// Since by its nature we may be coming from some other function to get
// here, and we're using the stack frame for the containing function to
// save/restore registers, we can't keep anything live in regs across
// the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
// when we get here from a longjmp(). We force everthing out of registers
// except for our own input by listing the relevant registers in Defs. By
// doing so, we also cause the prologue/epilogue code to actively preserve
// all of the callee-saved resgisters, which is exactly what we want.
let Defs =
[ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, D0,
D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12, D13, D14, D15,
D16, D17, D18, D19, D20, D21, D22, D23, D24, D25, D26, D27, D28, D29, D30,
D31 ] in {
def Int_eh_sjlj_setjmp : XI<(outs), (ins GPR:$src),
AddrModeNone, SizeSpecial, IndexModeNone,
Pseudo, NoItinerary,
"str\tsp, [$src, #+8] @ eh_setjmp begin\n\t"
"add\tr12, pc, #8\n\t"
"str\tr12, [$src, #+4]\n\t"
"mov\tr0, #0\n\t"
"add\tpc, pc, #0\n\t"
"mov\tr0, #1 @ eh_setjmp end", "",
[(set R0, (ARMeh_sjlj_setjmp GPR:$src))]>;
}
//===----------------------------------------------------------------------===//
// Non-Instruction Patterns
//
// ConstantPool, GlobalAddress, and JumpTable
def : ARMPat<(ARMWrapper tglobaladdr :$dst), (LEApcrel tglobaladdr :$dst)>;
def : ARMPat<(ARMWrapper tconstpool :$dst), (LEApcrel tconstpool :$dst)>;
def : ARMPat<(ARMWrapperJT tjumptable:$dst, imm:$id),
(LEApcrelJT tjumptable:$dst, imm:$id)>;
// Large immediate handling.
// Two piece so_imms.
let isReMaterializable = 1 in
def MOVi2pieces : AI1x2<(outs GPR:$dst), (ins so_imm2part:$src),
Pseudo, IIC_iMOVi,
"mov", "\t$dst, $src",
[(set GPR:$dst, so_imm2part:$src)]>,
Requires<[IsARM, NoV6T2]>;
def : ARMPat<(or GPR:$LHS, so_imm2part:$RHS),
(ORRri (ORRri GPR:$LHS, (so_imm2part_1 imm:$RHS)),
(so_imm2part_2 imm:$RHS))>;
def : ARMPat<(xor GPR:$LHS, so_imm2part:$RHS),
(EORri (EORri GPR:$LHS, (so_imm2part_1 imm:$RHS)),
(so_imm2part_2 imm:$RHS))>;
def : ARMPat<(add GPR:$LHS, so_imm2part:$RHS),
(ADDri (ADDri GPR:$LHS, (so_imm2part_1 imm:$RHS)),
(so_imm2part_2 imm:$RHS))>;
def : ARMPat<(sub GPR:$LHS, so_imm2part:$RHS),
(SUBri (SUBri GPR:$LHS, (so_imm2part_1 imm:$RHS)),
(so_imm2part_2 imm:$RHS))>;
// 32-bit immediate using movw + movt.
// This is a single pseudo instruction, the benefit is that it can be remat'd
// as a single unit instead of having to handle reg inputs.
// FIXME: Remove this when we can do generalized remat.
let isReMaterializable = 1 in
def MOVi32imm : AI1x2<(outs GPR:$dst), (ins i32imm:$src), Pseudo, IIC_iMOVi,
"movw", "\t$dst, ${src:lo16}\n\tmovt${p} $dst, ${src:hi16}",
[(set GPR:$dst, (i32 imm:$src))]>,
Requires<[IsARM, HasV6T2]>;
// TODO: add,sub,and, 3-instr forms?
// Direct calls
def : ARMPat<(ARMcall texternalsym:$func), (BL texternalsym:$func)>,
Requires<[IsARM, IsNotDarwin]>;
def : ARMPat<(ARMcall texternalsym:$func), (BLr9 texternalsym:$func)>,
Requires<[IsARM, IsDarwin]>;
// zextload i1 -> zextload i8
def : ARMPat<(zextloadi1 addrmode2:$addr), (LDRB addrmode2:$addr)>;
// extload -> zextload
def : ARMPat<(extloadi1 addrmode2:$addr), (LDRB addrmode2:$addr)>;
def : ARMPat<(extloadi8 addrmode2:$addr), (LDRB addrmode2:$addr)>;
def : ARMPat<(extloadi16 addrmode3:$addr), (LDRH addrmode3:$addr)>;
def : ARMPat<(extloadi8 addrmodepc:$addr), (PICLDRB addrmodepc:$addr)>;
def : ARMPat<(extloadi16 addrmodepc:$addr), (PICLDRH addrmodepc:$addr)>;
// smul* and smla*
def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
(sra (shl GPR:$b, (i32 16)), (i32 16))),
(SMULBB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(mul sext_16_node:$a, sext_16_node:$b),
(SMULBB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
(sra GPR:$b, (i32 16))),
(SMULBT GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(mul sext_16_node:$a, (sra GPR:$b, (i32 16))),
(SMULBT GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)),
(sra (shl GPR:$b, (i32 16)), (i32 16))),
(SMULTB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(mul (sra GPR:$a, (i32 16)), sext_16_node:$b),
(SMULTB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
(i32 16)),
(SMULWB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(sra (mul GPR:$a, sext_16_node:$b), (i32 16)),
(SMULWB GPR:$a, GPR:$b)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
(sra (shl GPR:$b, (i32 16)), (i32 16)))),
(SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul sext_16_node:$a, sext_16_node:$b)),
(SMLABB GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul (sra (shl GPR:$a, (i32 16)), (i32 16)),
(sra GPR:$b, (i32 16)))),
(SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul sext_16_node:$a, (sra GPR:$b, (i32 16)))),
(SMLABT GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul (sra GPR:$a, (i32 16)),
(sra (shl GPR:$b, (i32 16)), (i32 16)))),
(SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(mul (sra GPR:$a, (i32 16)), sext_16_node:$b)),
(SMLATB GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(sra (mul GPR:$a, (sra (shl GPR:$b, (i32 16)), (i32 16))),
(i32 16))),
(SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
def : ARMV5TEPat<(add GPR:$acc,
(sra (mul GPR:$a, sext_16_node:$b), (i32 16))),
(SMLAWB GPR:$a, GPR:$b, GPR:$acc)>;
//===----------------------------------------------------------------------===//
// Thumb Support
//
include "ARMInstrThumb.td"
//===----------------------------------------------------------------------===//
// Thumb2 Support
//
include "ARMInstrThumb2.td"
//===----------------------------------------------------------------------===//
// Floating Point Support
//
include "ARMInstrVFP.td"
//===----------------------------------------------------------------------===//
// Advanced SIMD (NEON) Support
//
include "ARMInstrNEON.td"
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