+
+// We need the following two pseudo instructions to avoid offset calculation for
+// long branches. See the comment in file MipsLongBranch.cpp for detailed
+// explanation.
+
+// Expands to: lui $dst, %highest($tgt - $baltgt)
+def LONG_BRANCH_LUi64 : PseudoSE<(outs GPR64Opnd:$dst),
+ (ins brtarget:$tgt, brtarget:$baltgt), []>;
+
+// Expands to: daddiu $dst, $src, %PART($tgt - $baltgt)
+// where %PART may be %higher, %hi or %lo, depending on the relocation kind
+// that $tgt is annotated with.
+def LONG_BRANCH_DADDiu : PseudoSE<(outs GPR64Opnd:$dst),
+ (ins GPR64Opnd:$src, brtarget:$tgt, brtarget:$baltgt), []>;
+
+// Cavium Octeon cmMIPS instructions
+let EncodingPredicates = []<Predicate>, // FIXME: The lack of HasStdEnc is probably a bug
+ AdditionalPredicates = [HasCnMips] in {
+
+class Count1s<string opstr, RegisterOperand RO>:
+ InstSE<(outs RO:$rd), (ins RO:$rs), !strconcat(opstr, "\t$rd, $rs"),
+ [(set RO:$rd, (ctpop RO:$rs))], II_POP, FrmR, opstr> {
+ let TwoOperandAliasConstraint = "$rd = $rs";
+}
+
+class ExtsCins<string opstr, SDPatternOperator Op = null_frag>:
+ InstSE<(outs GPR64Opnd:$rt), (ins GPR64Opnd:$rs, uimm5:$pos, uimm5:$lenm1),
+ !strconcat(opstr, " $rt, $rs, $pos, $lenm1"),
+ [(set GPR64Opnd:$rt, (Op GPR64Opnd:$rs, imm:$pos, imm:$lenm1))],
+ NoItinerary, FrmR, opstr> {
+ let TwoOperandAliasConstraint = "$rt = $rs";
+}
+
+class SetCC64_R<string opstr, PatFrag cond_op> :
+ InstSE<(outs GPR64Opnd:$rd), (ins GPR64Opnd:$rs, GPR64Opnd:$rt),
+ !strconcat(opstr, "\t$rd, $rs, $rt"),
+ [(set GPR64Opnd:$rd, (cond_op GPR64Opnd:$rs, GPR64Opnd:$rt))],
+ II_SEQ_SNE, FrmR, opstr> {
+ let TwoOperandAliasConstraint = "$rd = $rs";
+}
+
+class SetCC64_I<string opstr, PatFrag cond_op>:
+ InstSE<(outs GPR64Opnd:$rt), (ins GPR64Opnd:$rs, simm10_64:$imm10),
+ !strconcat(opstr, "\t$rt, $rs, $imm10"),
+ [(set GPR64Opnd:$rt, (cond_op GPR64Opnd:$rs, immSExt10_64:$imm10))],
+ II_SEQI_SNEI, FrmI, opstr> {
+ let TwoOperandAliasConstraint = "$rt = $rs";
+}
+
+// Unsigned Byte Add
+let Pattern = [(set GPR64Opnd:$rd,
+ (and (add GPR64Opnd:$rs, GPR64Opnd:$rt), 255))] in
+def BADDu : ArithLogicR<"baddu", GPR64Opnd, 1, II_BADDU>,
+ ADD_FM<0x1c, 0x28>;
+
+// Multiply Doubleword to GPR
+let Defs = [HI0, LO0, P0, P1, P2] in
+def DMUL : ArithLogicR<"dmul", GPR64Opnd, 1, II_DMUL, mul>,
+ ADD_FM<0x1c, 0x03>;
+
+// Extract a signed bit field /+32
+def EXTS : ExtsCins<"exts">, EXTS_FM<0x3a>;
+def EXTS32: ExtsCins<"exts32">, EXTS_FM<0x3b>;
+
+// Clear and insert a bit field /+32
+def CINS : ExtsCins<"cins">, EXTS_FM<0x32>;
+def CINS32: ExtsCins<"cins32">, EXTS_FM<0x33>;
+
+// Move to multiplier/product register
+def MTM0 : MoveToLOHI<"mtm0", GPR64Opnd, [MPL0, P0, P1, P2]>, MTMR_FM<0x08>;
+def MTM1 : MoveToLOHI<"mtm1", GPR64Opnd, [MPL1, P0, P1, P2]>, MTMR_FM<0x0c>;
+def MTM2 : MoveToLOHI<"mtm2", GPR64Opnd, [MPL2, P0, P1, P2]>, MTMR_FM<0x0d>;
+def MTP0 : MoveToLOHI<"mtp0", GPR64Opnd, [P0]>, MTMR_FM<0x09>;
+def MTP1 : MoveToLOHI<"mtp1", GPR64Opnd, [P1]>, MTMR_FM<0x0a>;
+def MTP2 : MoveToLOHI<"mtp2", GPR64Opnd, [P2]>, MTMR_FM<0x0b>;
+
+// Count Ones in a Word/Doubleword
+def POP : Count1s<"pop", GPR32Opnd>, POP_FM<0x2c>;
+def DPOP : Count1s<"dpop", GPR64Opnd>, POP_FM<0x2d>;
+
+// Set on equal/not equal
+def SEQ : SetCC64_R<"seq", seteq>, SEQ_FM<0x2a>;
+def SEQi : SetCC64_I<"seqi", seteq>, SEQI_FM<0x2e>;
+def SNE : SetCC64_R<"sne", setne>, SEQ_FM<0x2b>;
+def SNEi : SetCC64_I<"snei", setne>, SEQI_FM<0x2f>;
+
+// 192-bit x 64-bit Unsigned Multiply and Add
+let Defs = [P0, P1, P2] in
+def V3MULU: ArithLogicR<"v3mulu", GPR64Opnd, 0, II_DMUL>,
+ ADD_FM<0x1c, 0x11>;
+
+// 64-bit Unsigned Multiply and Add Move
+let Defs = [MPL0, P0, P1, P2] in
+def VMM0 : ArithLogicR<"vmm0", GPR64Opnd, 0, II_DMUL>,
+ ADD_FM<0x1c, 0x10>;
+
+// 64-bit Unsigned Multiply and Add
+let Defs = [MPL1, MPL2, P0, P1, P2] in
+def VMULU : ArithLogicR<"vmulu", GPR64Opnd, 0, II_DMUL>,
+ ADD_FM<0x1c, 0x0f>;
+