Index: lib/Target/Mips/MicroMips32r6InstrInfo.td
===================================================================
--- lib/Target/Mips/MicroMips32r6InstrInfo.td
+++ lib/Target/Mips/MicroMips32r6InstrInfo.td
@@ -19,6 +19,8 @@
 class ADD_MMR6_ENC : ARITH_FM_MMR6<"add", 0x110>;
 class ADDIU_MMR6_ENC : ADDI_FM_MMR6<"addiu", 0xc>;
 class ADDU_MMR6_ENC : ARITH_FM_MMR6<"addu", 0x150>;
+class AND_MMR6_ENC : ARITH_FM_MMR6<"and", 0x250>;
+class ANDI_MMR6_ENC : ADDI_FM_MMR6<"andi", 0x34>;
 class BALC_MMR6_ENC  : BRANCH_OFF26_FM<0b101101>;
 class BC_MMR6_ENC : BRANCH_OFF26_FM<0b100101>;
 
@@ -31,6 +33,8 @@
 class ADD_MMR6_DESC : ArithLogicR<"add", GPR32Opnd>;
 class ADDIU_MMR6_DESC : ArithLogicI<"addiu", simm16, GPR32Opnd>;
 class ADDU_MMR6_DESC : ArithLogicR<"addu", GPR32Opnd>;
+class AND_MMR6_DESC : ArithLogicR<"and", GPR32Opnd>;
+class ANDI_MMR6_DESC : ArithLogicI<"andi", simm16, GPR32Opnd>;
 
 class BC_MMR6_DESC_BASE<string instr_asm, DAGOperand opnd>
     : BRANCH_DESC_BASE, MMR6Arch<instr_asm> {
@@ -56,6 +60,8 @@
 def ADD_MMR6 : StdMMR6Rel, ADD_MMR6_DESC, ADD_MMR6_ENC, ISA_MICROMIPS32R6;
 def ADDIU_MMR6 : StdMMR6Rel, ADDIU_MMR6_DESC, ADDIU_MMR6_ENC, ISA_MICROMIPS32R6;
 def ADDU_MMR6 : StdMMR6Rel, ADDU_MMR6_DESC, ADDU_MMR6_ENC, ISA_MICROMIPS32R6;
+def AND_MMR6 : StdMMR6Rel, AND_MMR6_DESC, AND_MMR6_ENC, ISA_MICROMIPS32R6;
+def ANDI_MMR6 : StdMMR6Rel, ANDI_MMR6_DESC, ANDI_MMR6_ENC, ISA_MICROMIPS32R6;
 def BALC_MMR6 : R6MMR6Rel, BALC_MMR6_ENC, BALC_MMR6_DESC, ISA_MICROMIPS32R6;
 def BC_MMR6 : R6MMR6Rel, BC_MMR6_ENC, BC_MMR6_DESC, ISA_MICROMIPS32R6;
 }
Index: lib/Target/Mips/MipsInstrInfo.td
===================================================================
--- lib/Target/Mips/MipsInstrInfo.td
+++ lib/Target/Mips/MipsInstrInfo.td
@@ -1136,8 +1136,9 @@
 def SLTiu : MMRel, SetCC_I<"sltiu", setult, simm16, immSExt16, GPR32Opnd>,
             SLTI_FM<0xb>;
 let AdditionalPredicates = [NotInMicroMips] in {
-def ANDi  : MMRel, ArithLogicI<"andi", uimm16, GPR32Opnd, II_ANDI, immZExt16,
-                               and>, ADDI_FM<0xc>;
+def ANDi  : MMRel, StdMMR6Rel,
+            ArithLogicI<"andi", uimm16, GPR32Opnd, II_ANDI, immZExt16, and>,
+            ADDI_FM<0xc>;
 }
 def ORi   : MMRel, ArithLogicI<"ori", uimm16, GPR32Opnd, II_ORI, immZExt16,
                                or>,
@@ -1161,7 +1162,7 @@
 def SLT   : MMRel, SetCC_R<"slt", setlt, GPR32Opnd>, ADD_FM<0, 0x2a>;
 def SLTu  : MMRel, SetCC_R<"sltu", setult, GPR32Opnd>, ADD_FM<0, 0x2b>;
 let AdditionalPredicates = [NotInMicroMips] in {
-def AND   : MMRel, ArithLogicR<"and", GPR32Opnd, 1, II_AND, and>,
+def AND   : MMRel, StdMMR6Rel, ArithLogicR<"and", GPR32Opnd, 1, II_AND, and>,
             ADD_FM<0, 0x24>;
 def OR    : MMRel, ArithLogicR<"or", GPR32Opnd, 1, II_OR, or>,
             ADD_FM<0, 0x25>;
Index: test/MC/Disassembler/Mips/micromips32r6.txt
===================================================================
--- test/MC/Disassembler/Mips/micromips32r6.txt
+++ test/MC/Disassembler/Mips/micromips32r6.txt
@@ -9,6 +9,12 @@
 # CHECK: addu $3, $4, $5
 0x00 0xa4 0x19 0x50
 
+# CHECK: and $3, $4, $5
+0x00 0xa4 0x1a 0x50
+
+# CHECK: andi $3, $4, 1234
+0xd0 0x64 0x04 0xd2
+
 # CHECK: balc 14572256
 0xb4 0x37 0x96 0xb8
 
Index: test/MC/Mips/micromips32r6/valid.s
===================================================================
--- test/MC/Mips/micromips32r6/valid.s
+++ test/MC/Mips/micromips32r6/valid.s
@@ -4,5 +4,7 @@
   add $3, $4, $5           # CHECK: add $3, $4, $5      # encoding: [0x00,0xa4,0x19,0x10]
   addiu $3, $4, 1234       # CHECK: addiu $3, $4, 1234  # encoding: [0x30,0x64,0x04,0xd2]
   addu $3, $4, $5          # CHECK: addu $3, $4, $5     # encoding: [0x00,0xa4,0x19,0x50]
+  and $3, $4, $5           # CHECK: and $3, $4, $5      # encoding: [0x00,0xa4,0x1a,0x50]
+  andi $3, $4, 1234        # CHECK: andi $3, $4, 1234   # encoding: [0xd0,0x64,0x04,0xd2]
   balc 14572256            # CHECK: balc 14572256       # encoding: [0xb4,0x37,0x96,0xb8]
   bc 14572256              # CHECK: bc 14572256         # encoding: [0x94,0x37,0x96,0xb8]