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727 lines
27 KiB
TableGen
727 lines
27 KiB
TableGen
//===- ARMInstrThumb.td - Thumb support for ARM ---------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes the Thumb instruction set.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Thumb specific DAG Nodes.
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//
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def ARMtcall : SDNode<"ARMISD::tCALL", SDT_ARMcall,
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[SDNPHasChain, SDNPOptInFlag, SDNPOutFlag]>;
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def imm_neg_XFORM : SDNodeXForm<imm, [{
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return CurDAG->getTargetConstant(-(int)N->getZExtValue(), MVT::i32);
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}]>;
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def imm_comp_XFORM : SDNodeXForm<imm, [{
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return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
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}]>;
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/// imm0_7 predicate - True if the 32-bit immediate is in the range [0,7].
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def imm0_7 : PatLeaf<(i32 imm), [{
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return (uint32_t)N->getZExtValue() < 8;
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}]>;
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def imm0_7_neg : PatLeaf<(i32 imm), [{
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return (uint32_t)-N->getZExtValue() < 8;
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}], imm_neg_XFORM>;
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def imm0_255 : PatLeaf<(i32 imm), [{
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return (uint32_t)N->getZExtValue() < 256;
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}]>;
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def imm0_255_comp : PatLeaf<(i32 imm), [{
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return ~((uint32_t)N->getZExtValue()) < 256;
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}]>;
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def imm8_255 : PatLeaf<(i32 imm), [{
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return (uint32_t)N->getZExtValue() >= 8 && (uint32_t)N->getZExtValue() < 256;
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}]>;
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def imm8_255_neg : PatLeaf<(i32 imm), [{
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unsigned Val = -N->getZExtValue();
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return Val >= 8 && Val < 256;
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}], imm_neg_XFORM>;
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// Break imm's up into two pieces: an immediate + a left shift.
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// This uses thumb_immshifted to match and thumb_immshifted_val and
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// thumb_immshifted_shamt to get the val/shift pieces.
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def thumb_immshifted : PatLeaf<(imm), [{
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return ARM_AM::isThumbImmShiftedVal((unsigned)N->getZExtValue());
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}]>;
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def thumb_immshifted_val : SDNodeXForm<imm, [{
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unsigned V = ARM_AM::getThumbImmNonShiftedVal((unsigned)N->getZExtValue());
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return CurDAG->getTargetConstant(V, MVT::i32);
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}]>;
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def thumb_immshifted_shamt : SDNodeXForm<imm, [{
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unsigned V = ARM_AM::getThumbImmValShift((unsigned)N->getZExtValue());
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return CurDAG->getTargetConstant(V, MVT::i32);
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}]>;
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// Define Thumb specific addressing modes.
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// t_addrmode_rr := reg + reg
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//
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def t_addrmode_rr : Operand<i32>,
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ComplexPattern<i32, 2, "SelectThumbAddrModeRR", []> {
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let PrintMethod = "printThumbAddrModeRROperand";
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let MIOperandInfo = (ops tGPR:$base, tGPR:$offsreg);
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}
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// t_addrmode_s4 := reg + reg
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// reg + imm5 * 4
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//
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def t_addrmode_s4 : Operand<i32>,
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ComplexPattern<i32, 3, "SelectThumbAddrModeS4", []> {
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let PrintMethod = "printThumbAddrModeS4Operand";
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let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
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}
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// t_addrmode_s2 := reg + reg
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// reg + imm5 * 2
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//
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def t_addrmode_s2 : Operand<i32>,
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ComplexPattern<i32, 3, "SelectThumbAddrModeS2", []> {
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let PrintMethod = "printThumbAddrModeS2Operand";
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let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
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}
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// t_addrmode_s1 := reg + reg
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// reg + imm5
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//
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def t_addrmode_s1 : Operand<i32>,
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ComplexPattern<i32, 3, "SelectThumbAddrModeS1", []> {
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let PrintMethod = "printThumbAddrModeS1Operand";
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let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm, tGPR:$offsreg);
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}
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// t_addrmode_sp := sp + imm8 * 4
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//
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def t_addrmode_sp : Operand<i32>,
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ComplexPattern<i32, 2, "SelectThumbAddrModeSP", []> {
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let PrintMethod = "printThumbAddrModeSPOperand";
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let MIOperandInfo = (ops tGPR:$base, i32imm:$offsimm);
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}
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//===----------------------------------------------------------------------===//
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// Miscellaneous Instructions.
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//
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let Defs = [SP], Uses = [SP] in {
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def tADJCALLSTACKUP :
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PseudoInst<(outs), (ins i32imm:$amt1, i32imm:$amt2), NoItinerary,
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"@ tADJCALLSTACKUP $amt1",
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[(ARMcallseq_end imm:$amt1, imm:$amt2)]>, Requires<[IsThumb1Only]>;
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def tADJCALLSTACKDOWN :
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PseudoInst<(outs), (ins i32imm:$amt), NoItinerary,
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"@ tADJCALLSTACKDOWN $amt",
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[(ARMcallseq_start imm:$amt)]>, Requires<[IsThumb1Only]>;
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}
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// For both thumb1 and thumb2.
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let isNotDuplicable = 1 in
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def tPICADD : TIt<(outs GPR:$dst), (ins GPR:$lhs, pclabel:$cp), IIC_iALUr,
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"\n$cp:\n\tadd $dst, pc",
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[(set GPR:$dst, (ARMpic_add GPR:$lhs, imm:$cp))]>;
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// PC relative add.
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def tADDrPCi : T1I<(outs tGPR:$dst), (ins i32imm:$rhs), IIC_iALUi,
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"add $dst, pc, $rhs * 4", []>;
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// ADD rd, sp, #imm8
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def tADDrSPi : T1I<(outs tGPR:$dst), (ins GPR:$sp, i32imm:$rhs), IIC_iALUi,
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"add $dst, $sp, $rhs * 4", []>;
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// ADD sp, sp, #imm7
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def tADDspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iALUi,
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"add $dst, $rhs * 4", []>;
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// SUB sp, sp, #imm7
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def tSUBspi : TIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iALUi,
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"sub $dst, $rhs * 4", []>;
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// ADD rm, sp
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def tADDrSP : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
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"add $dst, $rhs", []>;
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// ADD sp, rm
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def tADDspr : TIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
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"add $dst, $rhs", []>;
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// Pseudo instruction that will expand into a tSUBspi + a copy.
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let usesCustomDAGSchedInserter = 1 in { // Expanded by the scheduler.
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def tSUBspi_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs),
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NoItinerary, "@ sub $dst, $rhs * 4", []>;
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def tADDspr_ : PseudoInst<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs),
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NoItinerary, "@ add $dst, $rhs", []>;
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let Defs = [CPSR] in
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def tANDsp : PseudoInst<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs),
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NoItinerary, "@ and $dst, $rhs", []>;
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} // usesCustomDAGSchedInserter
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//===----------------------------------------------------------------------===//
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// Control Flow Instructions.
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//
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let isReturn = 1, isTerminator = 1, isBarrier = 1 in {
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def tBX_RET : TI<(outs), (ins), IIC_Br, "bx lr", [(ARMretflag)]>;
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// Alternative return instruction used by vararg functions.
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def tBX_RET_vararg : TI<(outs), (ins tGPR:$target), IIC_Br, "bx $target", []>;
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}
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// FIXME: remove when we have a way to marking a MI with these properties.
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let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
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hasExtraDefRegAllocReq = 1 in
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def tPOP_RET : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
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"pop${p} $wb", []>;
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let isCall = 1,
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Defs = [R0, R1, R2, R3, R12, LR,
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D0, D1, D2, D3, D4, D5, D6, D7,
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D16, D17, D18, D19, D20, D21, D22, D23,
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D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
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// Also used for Thumb2
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def tBL : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
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"bl ${func:call}",
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[(ARMtcall tglobaladdr:$func)]>,
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Requires<[IsThumb, IsNotDarwin]>;
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// ARMv5T and above, also used for Thumb2
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def tBLXi : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
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"blx ${func:call}",
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[(ARMcall tglobaladdr:$func)]>,
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Requires<[IsThumb, HasV5T, IsNotDarwin]>;
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// Also used for Thumb2
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def tBLXr : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
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"blx $func",
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[(ARMtcall GPR:$func)]>,
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Requires<[IsThumb, HasV5T, IsNotDarwin]>;
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// ARMv4T
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def tBX : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
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"mov lr, pc\n\tbx $func",
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[(ARMcall_nolink tGPR:$func)]>,
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Requires<[IsThumb1Only, IsNotDarwin]>;
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}
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// On Darwin R9 is call-clobbered.
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let isCall = 1,
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Defs = [R0, R1, R2, R3, R9, R12, LR,
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D0, D1, D2, D3, D4, D5, D6, D7,
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D16, D17, D18, D19, D20, D21, D22, D23,
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D24, D25, D26, D27, D28, D29, D30, D31, CPSR, FPSCR] in {
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// Also used for Thumb2
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def tBLr9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
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"bl ${func:call}",
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[(ARMtcall tglobaladdr:$func)]>,
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Requires<[IsThumb, IsDarwin]>;
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// ARMv5T and above, also used for Thumb2
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def tBLXi_r9 : TIx2<(outs), (ins i32imm:$func, variable_ops), IIC_Br,
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"blx ${func:call}",
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[(ARMcall tglobaladdr:$func)]>,
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Requires<[IsThumb, HasV5T, IsDarwin]>;
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// Also used for Thumb2
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def tBLXr_r9 : TI<(outs), (ins GPR:$func, variable_ops), IIC_Br,
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"blx $func",
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[(ARMtcall GPR:$func)]>,
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Requires<[IsThumb, HasV5T, IsDarwin]>;
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// ARMv4T
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def tBXr9 : TIx2<(outs), (ins tGPR:$func, variable_ops), IIC_Br,
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"mov lr, pc\n\tbx $func",
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[(ARMcall_nolink tGPR:$func)]>,
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Requires<[IsThumb1Only, IsDarwin]>;
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}
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let isBranch = 1, isTerminator = 1 in {
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let isBarrier = 1 in {
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let isPredicable = 1 in
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def tB : T1I<(outs), (ins brtarget:$target), IIC_Br,
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"b $target", [(br bb:$target)]>;
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// Far jump
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let Defs = [LR] in
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def tBfar : TIx2<(outs), (ins brtarget:$target), IIC_Br,
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"bl $target\t@ far jump",[]>;
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def tBR_JTr : T1JTI<(outs),
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(ins tGPR:$target, jtblock_operand:$jt, i32imm:$id),
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IIC_Br, "mov pc, $target\n\t.align\t2\n$jt",
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[(ARMbrjt tGPR:$target, tjumptable:$jt, imm:$id)]>;
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}
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}
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// FIXME: should be able to write a pattern for ARMBrcond, but can't use
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// a two-value operand where a dag node expects two operands. :(
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let isBranch = 1, isTerminator = 1 in
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def tBcc : T1I<(outs), (ins brtarget:$target, pred:$cc), IIC_Br,
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"b$cc $target",
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[/*(ARMbrcond bb:$target, imm:$cc)*/]>;
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//===----------------------------------------------------------------------===//
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// Load Store Instructions.
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//
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let canFoldAsLoad = 1 in
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def tLDR : T1pI4<(outs tGPR:$dst), (ins t_addrmode_s4:$addr), IIC_iLoadr,
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"ldr", " $dst, $addr",
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[(set tGPR:$dst, (load t_addrmode_s4:$addr))]>;
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def tLDRB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_s1:$addr), IIC_iLoadr,
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"ldrb", " $dst, $addr",
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[(set tGPR:$dst, (zextloadi8 t_addrmode_s1:$addr))]>;
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def tLDRH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_s2:$addr), IIC_iLoadr,
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"ldrh", " $dst, $addr",
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[(set tGPR:$dst, (zextloadi16 t_addrmode_s2:$addr))]>;
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let AddedComplexity = 10 in
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def tLDRSB : T1pI1<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
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"ldrsb", " $dst, $addr",
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[(set tGPR:$dst, (sextloadi8 t_addrmode_rr:$addr))]>;
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let AddedComplexity = 10 in
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def tLDRSH : T1pI2<(outs tGPR:$dst), (ins t_addrmode_rr:$addr), IIC_iLoadr,
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"ldrsh", " $dst, $addr",
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[(set tGPR:$dst, (sextloadi16 t_addrmode_rr:$addr))]>;
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let canFoldAsLoad = 1 in
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def tLDRspi : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
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"ldr", " $dst, $addr",
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[(set tGPR:$dst, (load t_addrmode_sp:$addr))]>;
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// Special instruction for restore. It cannot clobber condition register
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// when it's expanded by eliminateCallFramePseudoInstr().
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let canFoldAsLoad = 1, mayLoad = 1 in
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def tRestore : T1pIs<(outs tGPR:$dst), (ins t_addrmode_sp:$addr), IIC_iLoadi,
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"ldr", " $dst, $addr", []>;
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// Load tconstpool
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let canFoldAsLoad = 1 in
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def tLDRpci : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
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"ldr", " $dst, $addr",
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[(set tGPR:$dst, (load (ARMWrapper tconstpool:$addr)))]>;
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// Special LDR for loads from non-pc-relative constpools.
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let canFoldAsLoad = 1, mayLoad = 1, isReMaterializable = 1 in
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def tLDRcp : T1pIs<(outs tGPR:$dst), (ins i32imm:$addr), IIC_iLoadi,
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"ldr", " $dst, $addr", []>;
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def tSTR : T1pI4<(outs), (ins tGPR:$src, t_addrmode_s4:$addr), IIC_iStorer,
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"str", " $src, $addr",
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[(store tGPR:$src, t_addrmode_s4:$addr)]>;
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def tSTRB : T1pI1<(outs), (ins tGPR:$src, t_addrmode_s1:$addr), IIC_iStorer,
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"strb", " $src, $addr",
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[(truncstorei8 tGPR:$src, t_addrmode_s1:$addr)]>;
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def tSTRH : T1pI2<(outs), (ins tGPR:$src, t_addrmode_s2:$addr), IIC_iStorer,
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"strh", " $src, $addr",
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[(truncstorei16 tGPR:$src, t_addrmode_s2:$addr)]>;
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def tSTRspi : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
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"str", " $src, $addr",
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[(store tGPR:$src, t_addrmode_sp:$addr)]>;
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let mayStore = 1 in {
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// Special instruction for spill. It cannot clobber condition register
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// when it's expanded by eliminateCallFramePseudoInstr().
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def tSpill : T1pIs<(outs), (ins tGPR:$src, t_addrmode_sp:$addr), IIC_iStorei,
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"str", " $src, $addr", []>;
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}
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//===----------------------------------------------------------------------===//
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// Load / store multiple Instructions.
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//
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// These requires base address to be written back or one of the loaded regs.
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let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
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def tLDM : T1I<(outs),
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(ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
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IIC_iLoadm,
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"ldm${addr:submode}${p} $addr, $wb", []>;
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let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
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def tSTM : T1I<(outs),
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(ins addrmode4:$addr, pred:$p, reglist:$wb, variable_ops),
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IIC_iStorem,
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"stm${addr:submode}${p} $addr, $wb", []>;
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let mayLoad = 1, Uses = [SP], Defs = [SP], hasExtraDefRegAllocReq = 1 in
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def tPOP : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
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"pop${p} $wb", []>;
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let mayStore = 1, Uses = [SP], Defs = [SP], hasExtraSrcRegAllocReq = 1 in
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def tPUSH : T1I<(outs), (ins pred:$p, reglist:$wb, variable_ops), IIC_Br,
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"push${p} $wb", []>;
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//===----------------------------------------------------------------------===//
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// Arithmetic Instructions.
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//
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// Add with carry register
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let isCommutable = 1, Uses = [CPSR] in
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def tADC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
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"adc", " $dst, $rhs",
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[(set tGPR:$dst, (adde tGPR:$lhs, tGPR:$rhs))]>;
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// Add immediate
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def tADDi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
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"add", " $dst, $lhs, $rhs",
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[(set tGPR:$dst, (add tGPR:$lhs, imm0_7:$rhs))]>;
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def tADDi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
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"add", " $dst, $rhs",
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[(set tGPR:$dst, (add tGPR:$lhs, imm8_255:$rhs))]>;
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// Add register
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let isCommutable = 1 in
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def tADDrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
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|
"add", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (add tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
let neverHasSideEffects = 1 in
|
|
def tADDhirr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iALUr,
|
|
"add", " $dst, $rhs", []>;
|
|
|
|
// And register
|
|
let isCommutable = 1 in
|
|
def tAND : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"and", " $dst, $rhs",
|
|
[(set tGPR:$dst, (and tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// ASR immediate
|
|
def tASRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
|
|
"asr", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (sra tGPR:$lhs, (i32 imm:$rhs)))]>;
|
|
|
|
// ASR register
|
|
def tASRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
|
|
"asr", " $dst, $rhs",
|
|
[(set tGPR:$dst, (sra tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// BIC register
|
|
def tBIC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"bic", " $dst, $rhs",
|
|
[(set tGPR:$dst, (and tGPR:$lhs, (not tGPR:$rhs)))]>;
|
|
|
|
// CMN register
|
|
let Defs = [CPSR] in {
|
|
def tCMN : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
|
|
"cmn", " $lhs, $rhs",
|
|
[(ARMcmp tGPR:$lhs, (ineg tGPR:$rhs))]>;
|
|
def tCMNZ : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
|
|
"cmn", " $lhs, $rhs",
|
|
[(ARMcmpZ tGPR:$lhs, (ineg tGPR:$rhs))]>;
|
|
}
|
|
|
|
// CMP immediate
|
|
let Defs = [CPSR] in {
|
|
def tCMPi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
|
|
"cmp", " $lhs, $rhs",
|
|
[(ARMcmp tGPR:$lhs, imm0_255:$rhs)]>;
|
|
def tCMPzi8 : T1pI<(outs), (ins tGPR:$lhs, i32imm:$rhs), IIC_iCMPi,
|
|
"cmp", " $lhs, $rhs",
|
|
[(ARMcmpZ tGPR:$lhs, imm0_255:$rhs)]>;
|
|
|
|
}
|
|
|
|
// CMP register
|
|
let Defs = [CPSR] in {
|
|
def tCMPr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
|
|
"cmp", " $lhs, $rhs",
|
|
[(ARMcmp tGPR:$lhs, tGPR:$rhs)]>;
|
|
def tCMPzr : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
|
|
"cmp", " $lhs, $rhs",
|
|
[(ARMcmpZ tGPR:$lhs, tGPR:$rhs)]>;
|
|
|
|
def tCMPhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
|
|
"cmp", " $lhs, $rhs", []>;
|
|
def tCMPzhir : T1pI<(outs), (ins GPR:$lhs, GPR:$rhs), IIC_iCMPr,
|
|
"cmp", " $lhs, $rhs", []>;
|
|
}
|
|
|
|
|
|
// XOR register
|
|
let isCommutable = 1 in
|
|
def tEOR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"eor", " $dst, $rhs",
|
|
[(set tGPR:$dst, (xor tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// LSL immediate
|
|
def tLSLri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
|
|
"lsl", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (shl tGPR:$lhs, (i32 imm:$rhs)))]>;
|
|
|
|
// LSL register
|
|
def tLSLrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
|
|
"lsl", " $dst, $rhs",
|
|
[(set tGPR:$dst, (shl tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// LSR immediate
|
|
def tLSRri : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iMOVsi,
|
|
"lsr", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (srl tGPR:$lhs, (i32 imm:$rhs)))]>;
|
|
|
|
// LSR register
|
|
def tLSRrr : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
|
|
"lsr", " $dst, $rhs",
|
|
[(set tGPR:$dst, (srl tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// move register
|
|
def tMOVi8 : T1sI<(outs tGPR:$dst), (ins i32imm:$src), IIC_iMOVi,
|
|
"mov", " $dst, $src",
|
|
[(set tGPR:$dst, imm0_255:$src)]>;
|
|
|
|
// TODO: A7-73: MOV(2) - mov setting flag.
|
|
|
|
|
|
let neverHasSideEffects = 1 in {
|
|
// FIXME: Make this predicable.
|
|
def tMOVr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
|
|
"mov $dst, $src", []>;
|
|
let Defs = [CPSR] in
|
|
def tMOVSr : T1I<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
|
|
"movs $dst, $src", []>;
|
|
|
|
// FIXME: Make these predicable.
|
|
def tMOVgpr2tgpr : T1I<(outs tGPR:$dst), (ins GPR:$src), IIC_iMOVr,
|
|
"mov $dst, $src", []>;
|
|
def tMOVtgpr2gpr : T1I<(outs GPR:$dst), (ins tGPR:$src), IIC_iMOVr,
|
|
"mov $dst, $src", []>;
|
|
def tMOVgpr2gpr : T1I<(outs GPR:$dst), (ins GPR:$src), IIC_iMOVr,
|
|
"mov $dst, $src", []>;
|
|
} // neverHasSideEffects
|
|
|
|
// multiply register
|
|
let isCommutable = 1 in
|
|
def tMUL : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMUL32,
|
|
"mul", " $dst, $rhs",
|
|
[(set tGPR:$dst, (mul tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// move inverse register
|
|
def tMVN : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iMOVr,
|
|
"mvn", " $dst, $src",
|
|
[(set tGPR:$dst, (not tGPR:$src))]>;
|
|
|
|
// bitwise or register
|
|
let isCommutable = 1 in
|
|
def tORR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"orr", " $dst, $rhs",
|
|
[(set tGPR:$dst, (or tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// swaps
|
|
def tREV : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"rev", " $dst, $src",
|
|
[(set tGPR:$dst, (bswap tGPR:$src))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
def tREV16 : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"rev16", " $dst, $src",
|
|
[(set tGPR:$dst,
|
|
(or (and (srl tGPR:$src, (i32 8)), 0xFF),
|
|
(or (and (shl tGPR:$src, (i32 8)), 0xFF00),
|
|
(or (and (srl tGPR:$src, (i32 8)), 0xFF0000),
|
|
(and (shl tGPR:$src, (i32 8)), 0xFF000000)))))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
def tREVSH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"revsh", " $dst, $src",
|
|
[(set tGPR:$dst,
|
|
(sext_inreg
|
|
(or (srl (and tGPR:$src, 0xFF00), (i32 8)),
|
|
(shl tGPR:$src, (i32 8))), i16))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
// rotate right register
|
|
def tROR : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iMOVsr,
|
|
"ror", " $dst, $rhs",
|
|
[(set tGPR:$dst, (rotr tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// negate register
|
|
def tRSB : T1sI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iALUi,
|
|
"rsb", " $dst, $src, #0",
|
|
[(set tGPR:$dst, (ineg tGPR:$src))]>;
|
|
|
|
// Subtract with carry register
|
|
let Uses = [CPSR] in
|
|
def tSBC : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"sbc", " $dst, $rhs",
|
|
[(set tGPR:$dst, (sube tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// Subtract immediate
|
|
def tSUBi3 : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
|
|
"sub", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (add tGPR:$lhs, imm0_7_neg:$rhs))]>;
|
|
|
|
def tSUBi8 : T1sIt<(outs tGPR:$dst), (ins tGPR:$lhs, i32imm:$rhs), IIC_iALUi,
|
|
"sub", " $dst, $rhs",
|
|
[(set tGPR:$dst, (add tGPR:$lhs, imm8_255_neg:$rhs))]>;
|
|
|
|
// subtract register
|
|
def tSUBrr : T1sI<(outs tGPR:$dst), (ins tGPR:$lhs, tGPR:$rhs), IIC_iALUr,
|
|
"sub", " $dst, $lhs, $rhs",
|
|
[(set tGPR:$dst, (sub tGPR:$lhs, tGPR:$rhs))]>;
|
|
|
|
// TODO: A7-96: STMIA - store multiple.
|
|
|
|
// sign-extend byte
|
|
def tSXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"sxtb", " $dst, $src",
|
|
[(set tGPR:$dst, (sext_inreg tGPR:$src, i8))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
// sign-extend short
|
|
def tSXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"sxth", " $dst, $src",
|
|
[(set tGPR:$dst, (sext_inreg tGPR:$src, i16))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
// test
|
|
let isCommutable = 1, Defs = [CPSR] in
|
|
def tTST : T1pI<(outs), (ins tGPR:$lhs, tGPR:$rhs), IIC_iCMPr,
|
|
"tst", " $lhs, $rhs",
|
|
[(ARMcmpZ (and tGPR:$lhs, tGPR:$rhs), 0)]>;
|
|
|
|
// zero-extend byte
|
|
def tUXTB : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"uxtb", " $dst, $src",
|
|
[(set tGPR:$dst, (and tGPR:$src, 0xFF))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
// zero-extend short
|
|
def tUXTH : T1pI<(outs tGPR:$dst), (ins tGPR:$src), IIC_iUNAr,
|
|
"uxth", " $dst, $src",
|
|
[(set tGPR:$dst, (and tGPR:$src, 0xFFFF))]>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
|
|
// Conditional move tMOVCCr - Used to implement the Thumb SELECT_CC DAG operation.
|
|
// Expanded by the scheduler into a branch sequence.
|
|
let usesCustomDAGSchedInserter = 1 in // Expanded by the scheduler.
|
|
def tMOVCCr_pseudo :
|
|
PseudoInst<(outs tGPR:$dst), (ins tGPR:$false, tGPR:$true, pred:$cc),
|
|
NoItinerary, "@ tMOVCCr $cc",
|
|
[/*(set tGPR:$dst, (ARMcmov tGPR:$false, tGPR:$true, imm:$cc))*/]>;
|
|
|
|
|
|
// 16-bit movcc in IT blocks for Thumb2.
|
|
def tMOVCCr : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, GPR:$rhs), IIC_iCMOVr,
|
|
"mov", " $dst, $rhs", []>;
|
|
|
|
def tMOVCCi : T1pIt<(outs GPR:$dst), (ins GPR:$lhs, i32imm:$rhs), IIC_iCMOVi,
|
|
"mov", " $dst, $rhs", []>;
|
|
|
|
// tLEApcrel - Load a pc-relative address into a register without offending the
|
|
// assembler.
|
|
def tLEApcrel : T1I<(outs tGPR:$dst), (ins i32imm:$label, pred:$p), IIC_iALUi,
|
|
"adr$p $dst, #$label", []>;
|
|
|
|
def tLEApcrelJT : T1I<(outs tGPR:$dst),
|
|
(ins i32imm:$label, nohash_imm:$id, pred:$p),
|
|
IIC_iALUi, "adr$p $dst, #${label}_${id}", []>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// TLS Instructions
|
|
//
|
|
|
|
// __aeabi_read_tp preserves the registers r1-r3.
|
|
let isCall = 1,
|
|
Defs = [R0, LR] in {
|
|
def tTPsoft : TIx2<(outs), (ins), IIC_Br,
|
|
"bl __aeabi_read_tp",
|
|
[(set R0, ARMthread_pointer)]>;
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Non-Instruction Patterns
|
|
//
|
|
|
|
// Add with carry
|
|
def : T1Pat<(addc tGPR:$lhs, imm0_7:$rhs),
|
|
(tADDi3 tGPR:$lhs, imm0_7:$rhs)>;
|
|
def : T1Pat<(addc tGPR:$lhs, imm8_255:$rhs),
|
|
(tADDi8 tGPR:$lhs, imm8_255:$rhs)>;
|
|
def : T1Pat<(addc tGPR:$lhs, tGPR:$rhs),
|
|
(tADDrr tGPR:$lhs, tGPR:$rhs)>;
|
|
|
|
// Subtract with carry
|
|
def : T1Pat<(addc tGPR:$lhs, imm0_7_neg:$rhs),
|
|
(tSUBi3 tGPR:$lhs, imm0_7_neg:$rhs)>;
|
|
def : T1Pat<(addc tGPR:$lhs, imm8_255_neg:$rhs),
|
|
(tSUBi8 tGPR:$lhs, imm8_255_neg:$rhs)>;
|
|
def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
|
|
(tSUBrr tGPR:$lhs, tGPR:$rhs)>;
|
|
|
|
// ConstantPool, GlobalAddress
|
|
def : T1Pat<(ARMWrapper tglobaladdr :$dst), (tLEApcrel tglobaladdr :$dst)>;
|
|
def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
|
|
|
|
// JumpTable
|
|
def : T1Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
|
|
(tLEApcrelJT tjumptable:$dst, imm:$id)>;
|
|
|
|
// Direct calls
|
|
def : T1Pat<(ARMtcall texternalsym:$func), (tBL texternalsym:$func)>,
|
|
Requires<[IsThumb, IsNotDarwin]>;
|
|
def : T1Pat<(ARMtcall texternalsym:$func), (tBLr9 texternalsym:$func)>,
|
|
Requires<[IsThumb, IsDarwin]>;
|
|
|
|
def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi texternalsym:$func)>,
|
|
Requires<[IsThumb, HasV5T, IsNotDarwin]>;
|
|
def : Tv5Pat<(ARMcall texternalsym:$func), (tBLXi_r9 texternalsym:$func)>,
|
|
Requires<[IsThumb, HasV5T, IsDarwin]>;
|
|
|
|
// Indirect calls to ARM routines
|
|
def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr GPR:$dst)>,
|
|
Requires<[IsThumb, HasV5T, IsNotDarwin]>;
|
|
def : Tv5Pat<(ARMcall GPR:$dst), (tBLXr_r9 GPR:$dst)>,
|
|
Requires<[IsThumb, HasV5T, IsDarwin]>;
|
|
|
|
// zextload i1 -> zextload i8
|
|
def : T1Pat<(zextloadi1 t_addrmode_s1:$addr),
|
|
(tLDRB t_addrmode_s1:$addr)>;
|
|
|
|
// extload -> zextload
|
|
def : T1Pat<(extloadi1 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
|
|
def : T1Pat<(extloadi8 t_addrmode_s1:$addr), (tLDRB t_addrmode_s1:$addr)>;
|
|
def : T1Pat<(extloadi16 t_addrmode_s2:$addr), (tLDRH t_addrmode_s2:$addr)>;
|
|
|
|
// If it's impossible to use [r,r] address mode for sextload, select to
|
|
// ldr{b|h} + sxt{b|h} instead.
|
|
def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
|
|
(tSXTB (tLDRB t_addrmode_s1:$addr))>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
def : T1Pat<(sextloadi16 t_addrmode_s2:$addr),
|
|
(tSXTH (tLDRH t_addrmode_s2:$addr))>,
|
|
Requires<[IsThumb1Only, HasV6]>;
|
|
|
|
def : T1Pat<(sextloadi8 t_addrmode_s1:$addr),
|
|
(tASRri (tLSLri (tLDRB t_addrmode_s1:$addr), 24), 24)>;
|
|
def : T1Pat<(sextloadi16 t_addrmode_s1:$addr),
|
|
(tASRri (tLSLri (tLDRH t_addrmode_s1:$addr), 16), 16)>;
|
|
|
|
// Large immediate handling.
|
|
|
|
// Two piece imms.
|
|
def : T1Pat<(i32 thumb_immshifted:$src),
|
|
(tLSLri (tMOVi8 (thumb_immshifted_val imm:$src)),
|
|
(thumb_immshifted_shamt imm:$src))>;
|
|
|
|
def : T1Pat<(i32 imm0_255_comp:$src),
|
|
(tMVN (tMOVi8 (imm_comp_XFORM imm:$src)))>;
|