def t2_so_reg : Operand<i32>, // reg imm
ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
[shl,srl,sra,rotr]> {
+ string EncoderMethod = "getT2SORegOpValue";
let PrintMethod = "printT2SOOperand";
let MIOperandInfo = (ops rGPR, i32imm);
}
// represented in the imm field in the same 12-bit form that they are encoded
// into t2_so_imm instructions: the 8-bit immediate is the least significant
// bits [bits 0-7], the 4-bit shift/splat amount is the next 4 bits [bits 8-11].
-def t2_so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]>;
+def t2_so_imm : Operand<i32>, PatLeaf<(imm), [{ return Pred_t2_so_imm(N); }]> {
+ string EncoderMethod = "getT2SOImmOpValue";
+}
// t2_so_imm_not - Match an immediate that is a complement
// of a t2_so_imm.
// t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
def t2_so_imm_neg : Operand<i32>,
PatLeaf<(imm), [{
- return ARM_AM::getT2SOImmVal(-((int)N->getZExtValue())) != -1;
+ return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
}], t2_so_imm_neg_XFORM>;
// Break t2_so_imm's up into two pieces. This handles immediates with up to 16
// Multiclass helpers...
//
+class T2TwoRegShiftedImm<dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T2sI<oops, iops, itin, opc, asm, pattern> {
+ bits<4> Rd;
+ bits<4> Rn;
+ bits<12> imm;
+
+ let Inst{11-8} = Rd{3-0};
+ let Inst{19-16} = Rn{3-0};
+ let Inst{26} = imm{11};
+ let Inst{14-12} = imm{10-8};
+ let Inst{7-0} = imm{7-0};
+}
+
+class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T2sI<oops, iops, itin, opc, asm, pattern> {
+ bits<4> Rd;
+ bits<4> Rn;
+ bits<4> Rm;
+
+ let Inst{11-8} = Rd{3-0};
+ let Inst{19-16} = Rn{3-0};
+ let Inst{3-0} = Rm{3-0};
+}
+
+class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
+ string opc, string asm, list<dag> pattern>
+ : T2sI<oops, iops, itin, opc, asm, pattern> {
+ bits<4> Rd;
+ bits<4> Rn;
+ bits<12> ShiftedRm;
+
+ let Inst{11-8} = Rd{3-0};
+ let Inst{19-16} = Rn{3-0};
+ let Inst{3-0} = ShiftedRm{3-0};
+ let Inst{5-4} = ShiftedRm{6-5};
+ let Inst{14-12} = ShiftedRm{11-9};
+ let Inst{7-6} = ShiftedRm{8-7};
+}
+
/// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
/// unary operation that produces a value. These are predicable and can be
/// changed to modify CPSR.
multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
// shifted imm
- def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
- opc, "\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
+ def ri : T2TwoRegShiftedImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
+ IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
Requires<[IsThumb2]> {
let Inst{31-27} = 0b11110;
let Inst{25} = 0;
let Inst{15} = 0;
}
// register
- def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
- opc, ".w\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
+ def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
+ opc, ".w\t$Rd, $Rn, $Rm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
Requires<[IsThumb2]> {
let isCommutable = Commutable;
let Inst{31-27} = 0b11101;
let Inst{5-4} = 0b00; // type
}
// shifted register
- def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
- opc, ".w\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
+ def rs : T2TwoRegShiftedReg<
+ (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
+ IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
Requires<[IsThumb2]> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
multiclass T2I_adde_sube_s_irs<bits<4> opcod, string opc, PatFrag opnode,
bit Commutable = 0> {
// shifted imm
- def ri : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_imm:$rhs), IIC_iALUi,
- opc, "\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_imm:$rhs))]>,
+ def ri : T2TwoRegShiftedImm<
+ (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
+ opc, "\t$Rd, $Rn, $imm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
Requires<[IsThumb2]> {
let Inst{31-27} = 0b11110;
let Inst{25} = 0;
let Inst{15} = 0;
}
// register
- def rr : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, rGPR:$rhs), IIC_iALUr,
- opc, ".w\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, rGPR:$rhs))]>,
+ def rr : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
+ opc, ".w\t$Rd, $Rn, $Rm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
Requires<[IsThumb2]> {
let isCommutable = Commutable;
let Inst{31-27} = 0b11101;
let Inst{5-4} = 0b00; // type
}
// shifted register
- def rs : T2sI<(outs rGPR:$dst), (ins rGPR:$lhs, t2_so_reg:$rhs), IIC_iALUsi,
- opc, ".w\t$dst, $lhs, $rhs",
- [(set rGPR:$dst, (opnode rGPR:$lhs, t2_so_reg:$rhs))]>,
+ def rs : T2TwoRegShiftedReg<
+ (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
+ IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
+ [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
Requires<[IsThumb2]> {
let Inst{31-27} = 0b11101;
let Inst{26-25} = 0b01;
// 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. :(
-let neverHasSideEffects = 1 in {
+let neverHasSideEffects = 1, isAsCheapAsAMove = 1 in {
def t2MOVCCr : T2I<(outs rGPR:$dst), (ins rGPR:$false, rGPR:$true), IIC_iCMOVr,
"mov", ".w\t$dst, $true",
[/*(set rGPR:$dst, (ARMcmov rGPR:$false, rGPR:$true, imm:$cc, CCR:$ccr))*/]>,
}
def t2MOVCCi16 : T2I<(outs rGPR:$dst), (ins rGPR:$false, i32imm:$src),
- IIC_iMOVi,
+ IIC_iCMOVi,
"movw", "\t$dst, $src", []>,
RegConstraint<"$false = $dst"> {
let Inst{31-27} = 0b11110;
let Inst{15} = 0;
}
+def t2MVNCCi : T2I<(outs rGPR:$dst), (ins rGPR:$false, t2_so_imm:$true),
+ IIC_iCMOVi, "mvn", ".w\t$dst, $true",
+[/*(set rGPR:$dst,(ARMcmov rGPR:$false,t2_so_imm_not:$true,
+ imm:$cc, CCR:$ccr))*/]>,
+ RegConstraint<"$false = $dst"> {
+ let Inst{31-27} = 0b11110;
+ let Inst{25} = 0;
+ let Inst{24-21} = 0b0011;
+ let Inst{20} = 0; // The S bit.
+ let Inst{19-16} = 0b1111; // Rn
+ let Inst{15} = 0;
+}
+
class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
string opc, string asm, list<dag> pattern>
: T2I<oops, iops, itin, opc, asm, pattern> {
projects / oota-llvm.git / blobdiff