X86InstrInfo.td

                  (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                  "cmovg\t{$src2, $dst|$dst, $src2}",
                  [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
                                   X86_COND_G, EFLAGS))]>,
                   TB;
def CMOVS16rm : I<0x48, MRMSrcMem,       // if signed, GR16 = [mem16]
                  (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                  "cmovs\t{$src2, $dst|$dst, $src2}",
                  [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
                                   X86_COND_S, EFLAGS))]>,
                  TB, OpSize;
def CMOVS32rm : I<0x48, MRMSrcMem,       // if signed, GR32 = [mem32]
                  (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                  "cmovs\t{$src2, $dst|$dst, $src2}",
                  [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
                                   X86_COND_S, EFLAGS))]>,
                  TB;
def CMOVNS16rm: I<0x49, MRMSrcMem,       // if !signed, GR16 = [mem16]
                  (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                  "cmovns\t{$src2, $dst|$dst, $src2}",
                  [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
                                   X86_COND_NS, EFLAGS))]>,
                  TB, OpSize;
def CMOVNS32rm: I<0x49, MRMSrcMem,       // if !signed, GR32 = [mem32]
                  (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                  "cmovns\t{$src2, $dst|$dst, $src2}",
                  [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
                                   X86_COND_NS, EFLAGS))]>,
                  TB;
def CMOVP16rm : I<0x4A, MRMSrcMem,       // if parity, GR16 = [mem16]
                  (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                  "cmovp\t{$src2, $dst|$dst, $src2}",
                  [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
                                   X86_COND_P, EFLAGS))]>,
                  TB, OpSize;
def CMOVP32rm : I<0x4A, MRMSrcMem,       // if parity, GR32 = [mem32]
                  (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                  "cmovp\t{$src2, $dst|$dst, $src2}",
                  [(set GR32:$dst, (X86cmov GR32:$src1, (loadi32 addr:$src2),
                                   X86_COND_P, EFLAGS))]>,
                  TB;
def CMOVNP16rm : I<0x4B, MRMSrcMem,       // if !parity, GR16 = [mem16]
                  (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                  "cmovnp\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (X86cmov GR16:$src1, (loadi16 addr:$src2),
                                    X86_COND_NP, EFLAGS))]>,
                  TB, OpSize;
} // Uses = [EFLAGS]


// unary instructions
let CodeSize = 2 in {
let Defs = [EFLAGS] in {
def NEG8r  : I<0xF6, MRM3r, (outs GR8 :$dst), (ins GR8 :$src), "neg{b}\t$dst",
               [(set GR8:$dst, (ineg GR8:$src))]>;
def NEG16r : I<0xF7, MRM3r, (outs GR16:$dst), (ins GR16:$src), "neg{w}\t$dst",
               [(set GR16:$dst, (ineg GR16:$src))]>, OpSize;
def NEG32r : I<0xF7, MRM3r, (outs GR32:$dst), (ins GR32:$src), "neg{l}\t$dst",
               [(set GR32:$dst, (ineg GR32:$src))]>;
let isTwoAddress = 0 in {
  def NEG8m  : I<0xF6, MRM3m, (outs), (ins i8mem :$dst), "neg{b}\t$dst",
                 [(store (ineg (loadi8 addr:$dst)), addr:$dst)]>;
  def NEG16m : I<0xF7, MRM3m, (outs), (ins i16mem:$dst), "neg{w}\t$dst",
                 [(store (ineg (loadi16 addr:$dst)), addr:$dst)]>, OpSize;
  def NEG32m : I<0xF7, MRM3m, (outs), (ins i32mem:$dst), "neg{l}\t$dst",
                 [(store (ineg (loadi32 addr:$dst)), addr:$dst)]>;

}
} // Defs = [EFLAGS]

def NOT8r  : I<0xF6, MRM2r, (outs GR8 :$dst), (ins GR8 :$src), "not{b}\t$dst",
               [(set GR8:$dst, (not GR8:$src))]>;
def NOT16r : I<0xF7, MRM2r, (outs GR16:$dst), (ins GR16:$src), "not{w}\t$dst",
               [(set GR16:$dst, (not GR16:$src))]>, OpSize;
def NOT32r : I<0xF7, MRM2r, (outs GR32:$dst), (ins GR32:$src), "not{l}\t$dst",
               [(set GR32:$dst, (not GR32:$src))]>;
let isTwoAddress = 0 in {
  def NOT8m  : I<0xF6, MRM2m, (outs), (ins i8mem :$dst), "not{b}\t$dst",
                 [(store (not (loadi8 addr:$dst)), addr:$dst)]>;
  def NOT16m : I<0xF7, MRM2m, (outs), (ins i16mem:$dst), "not{w}\t$dst",
                 [(store (not (loadi16 addr:$dst)), addr:$dst)]>, OpSize;
  def NOT32m : I<0xF7, MRM2m, (outs), (ins i32mem:$dst), "not{l}\t$dst",
                 [(store (not (loadi32 addr:$dst)), addr:$dst)]>;
}
} // CodeSize

// TODO: inc/dec is slow for P4, but fast for Pentium-M.
let Defs = [EFLAGS] in {
let CodeSize = 2 in
def INC8r  : I<0xFE, MRM0r, (outs GR8 :$dst), (ins GR8 :$src), "inc{b}\t$dst",
               [(set GR8:$dst, (add GR8:$src, 1))]>;
let isConvertibleToThreeAddress = 1, CodeSize = 1 in {  // Can xform into LEA.
def INC16r : I<0x40, AddRegFrm, (outs GR16:$dst), (ins GR16:$src), "inc{w}\t$dst",
               [(set GR16:$dst, (add GR16:$src, 1))]>,
             OpSize, Requires<[In32BitMode]>;
def INC32r : I<0x40, AddRegFrm, (outs GR32:$dst), (ins GR32:$src), "inc{l}\t$dst",
               [(set GR32:$dst, (add GR32:$src, 1))]>, Requires<[In32BitMode]>;
}
let isTwoAddress = 0, CodeSize = 2 in {
  def INC8m  : I<0xFE, MRM0m, (outs), (ins i8mem :$dst), "inc{b}\t$dst",
               [(store (add (loadi8 addr:$dst), 1), addr:$dst)]>;
  def INC16m : I<0xFF, MRM0m, (outs), (ins i16mem:$dst), "inc{w}\t$dst",
               [(store (add (loadi16 addr:$dst), 1), addr:$dst)]>,
               OpSize, Requires<[In32BitMode]>;
  def INC32m : I<0xFF, MRM0m, (outs), (ins i32mem:$dst), "inc{l}\t$dst",
               [(store (add (loadi32 addr:$dst), 1), addr:$dst)]>,
               Requires<[In32BitMode]>;
}

let CodeSize = 2 in
def DEC8r  : I<0xFE, MRM1r, (outs GR8 :$dst), (ins GR8 :$src), "dec{b}\t$dst",
               [(set GR8:$dst, (add GR8:$src, -1))]>;
let isConvertibleToThreeAddress = 1, CodeSize = 1 in {   // Can xform into LEA.
def DEC16r : I<0x48, AddRegFrm, (outs GR16:$dst), (ins GR16:$src), "dec{w}\t$dst",
               [(set GR16:$dst, (add GR16:$src, -1))]>,
             OpSize, Requires<[In32BitMode]>;
def DEC32r : I<0x48, AddRegFrm, (outs GR32:$dst), (ins GR32:$src), "dec{l}\t$dst",
               [(set GR32:$dst, (add GR32:$src, -1))]>, Requires<[In32BitMode]>;
}

let isTwoAddress = 0, CodeSize = 2 in {
  def DEC8m  : I<0xFE, MRM1m, (outs), (ins i8mem :$dst), "dec{b}\t$dst",
               [(store (add (loadi8 addr:$dst), -1), addr:$dst)]>;
  def DEC16m : I<0xFF, MRM1m, (outs), (ins i16mem:$dst), "dec{w}\t$dst",
               [(store (add (loadi16 addr:$dst), -1), addr:$dst)]>,
               OpSize, Requires<[In32BitMode]>;
  def DEC32m : I<0xFF, MRM1m, (outs), (ins i32mem:$dst), "dec{l}\t$dst",
               [(store (add (loadi32 addr:$dst), -1), addr:$dst)]>,
               Requires<[In32BitMode]>;
}
} // Defs = [EFLAGS]

// Logical operators...
let Defs = [EFLAGS] in {
let isCommutable = 1 in {   // X = AND Y, Z   --> X = AND Z, Y
def AND8rr   : I<0x20, MRMDestReg,
                (outs GR8 :$dst), (ins GR8 :$src1, GR8 :$src2),
                "and{b}\t{$src2, $dst|$dst, $src2}",
                [(set GR8:$dst, (and GR8:$src1, GR8:$src2))]>;
def AND16rr  : I<0x21, MRMDestReg,
                 (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "and{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (and GR16:$src1, GR16:$src2))]>, OpSize;
def AND32rr  : I<0x21, MRMDestReg, 
                 (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "and{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (and GR32:$src1, GR32:$src2))]>;
}

def AND8rm   : I<0x22, MRMSrcMem, 
                 (outs GR8 :$dst), (ins GR8 :$src1, i8mem :$src2),
                 "and{b}\t{$src2, $dst|$dst, $src2}",
                [(set GR8:$dst, (and GR8:$src1, (load addr:$src2)))]>;
def AND16rm  : I<0x23, MRMSrcMem, 
                 (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                 "and{w}\t{$src2, $dst|$dst, $src2}",
                [(set GR16:$dst, (and GR16:$src1, (load addr:$src2)))]>, OpSize;
def AND32rm  : I<0x23, MRMSrcMem,
                 (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                 "and{l}\t{$src2, $dst|$dst, $src2}",
                [(set GR32:$dst, (and GR32:$src1, (load addr:$src2)))]>;

def AND8ri   : Ii8<0x80, MRM4r, 
                   (outs GR8 :$dst), (ins GR8 :$src1, i8imm :$src2),
                   "and{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (and GR8:$src1, imm:$src2))]>;
def AND16ri  : Ii16<0x81, MRM4r, 
                    (outs GR16:$dst), (ins GR16:$src1, i16imm:$src2),
                    "and{w}\t{$src2, $dst|$dst, $src2}",
                    [(set GR16:$dst, (and GR16:$src1, imm:$src2))]>, OpSize;
def AND32ri  : Ii32<0x81, MRM4r, 
                    (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
                    "and{l}\t{$src2, $dst|$dst, $src2}",
                    [(set GR32:$dst, (and GR32:$src1, imm:$src2))]>;
def AND16ri8 : Ii8<0x83, MRM4r, 
                   (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                   "and{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (and GR16:$src1, i16immSExt8:$src2))]>,
                   OpSize;
def AND32ri8 : Ii8<0x83, MRM4r, 
                   (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
                   "and{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (and GR32:$src1, i32immSExt8:$src2))]>;

let isTwoAddress = 0 in {
  def AND8mr   : I<0x20, MRMDestMem,
                   (outs), (ins i8mem :$dst, GR8 :$src),
                   "and{b}\t{$src, $dst|$dst, $src}",
                   [(store (and (load addr:$dst), GR8:$src), addr:$dst)]>;
  def AND16mr  : I<0x21, MRMDestMem,
                   (outs), (ins i16mem:$dst, GR16:$src),
                   "and{w}\t{$src, $dst|$dst, $src}",
                   [(store (and (load addr:$dst), GR16:$src), addr:$dst)]>,
                   OpSize;
  def AND32mr  : I<0x21, MRMDestMem,
                   (outs), (ins i32mem:$dst, GR32:$src),
                   "and{l}\t{$src, $dst|$dst, $src}",
                   [(store (and (load addr:$dst), GR32:$src), addr:$dst)]>;
  def AND8mi   : Ii8<0x80, MRM4m,
                     (outs), (ins i8mem :$dst, i8imm :$src),
                     "and{b}\t{$src, $dst|$dst, $src}",
                      [(store (and (loadi8 addr:$dst), imm:$src), addr:$dst)]>;
  def AND16mi  : Ii16<0x81, MRM4m,
                      (outs), (ins i16mem:$dst, i16imm:$src),
                      "and{w}\t{$src, $dst|$dst, $src}",
                      [(store (and (loadi16 addr:$dst), imm:$src), addr:$dst)]>,
                      OpSize;
  def AND32mi  : Ii32<0x81, MRM4m,
                      (outs), (ins i32mem:$dst, i32imm:$src),
                      "and{l}\t{$src, $dst|$dst, $src}",
                      [(store (and (loadi32 addr:$dst), imm:$src), addr:$dst)]>;
  def AND16mi8 : Ii8<0x83, MRM4m,
                     (outs), (ins i16mem:$dst, i16i8imm :$src),
                     "and{w}\t{$src, $dst|$dst, $src}",
                [(store (and (load addr:$dst), i16immSExt8:$src), addr:$dst)]>,
                     OpSize;
  def AND32mi8 : Ii8<0x83, MRM4m,
                     (outs), (ins i32mem:$dst, i32i8imm :$src),
                     "and{l}\t{$src, $dst|$dst, $src}",
                [(store (and (load addr:$dst), i32immSExt8:$src), addr:$dst)]>;
}


let isCommutable = 1 in {   // X = OR Y, Z   --> X = OR Z, Y
def OR8rr    : I<0x08, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src1, GR8 :$src2),
                 "or{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (or GR8:$src1, GR8:$src2))]>;
def OR16rr   : I<0x09, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "or{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (or GR16:$src1, GR16:$src2))]>, OpSize;
def OR32rr   : I<0x09, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "or{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (or GR32:$src1, GR32:$src2))]>;
}
def OR8rm    : I<0x0A, MRMSrcMem , (outs GR8 :$dst), (ins GR8 :$src1, i8mem :$src2),
                 "or{b}\t{$src2, $dst|$dst, $src2}",
                [(set GR8:$dst, (or GR8:$src1, (load addr:$src2)))]>;
def OR16rm   : I<0x0B, MRMSrcMem , (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                 "or{w}\t{$src2, $dst|$dst, $src2}",
                [(set GR16:$dst, (or GR16:$src1, (load addr:$src2)))]>, OpSize;
def OR32rm   : I<0x0B, MRMSrcMem , (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                 "or{l}\t{$src2, $dst|$dst, $src2}",
                [(set GR32:$dst, (or GR32:$src1, (load addr:$src2)))]>;

def OR8ri    : Ii8 <0x80, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
                    "or{b}\t{$src2, $dst|$dst, $src2}",
                    [(set GR8:$dst, (or GR8:$src1, imm:$src2))]>;
def OR16ri   : Ii16<0x81, MRM1r, (outs GR16:$dst), (ins GR16:$src1, i16imm:$src2),
                    "or{w}\t{$src2, $dst|$dst, $src2}", 
                    [(set GR16:$dst, (or GR16:$src1, imm:$src2))]>, OpSize;
def OR32ri   : Ii32<0x81, MRM1r, (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
                    "or{l}\t{$src2, $dst|$dst, $src2}",
                    [(set GR32:$dst, (or GR32:$src1, imm:$src2))]>;

def OR16ri8  : Ii8<0x83, MRM1r, (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                   "or{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (or GR16:$src1, i16immSExt8:$src2))]>, OpSize;
def OR32ri8  : Ii8<0x83, MRM1r, (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
                   "or{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (or GR32:$src1, i32immSExt8:$src2))]>;
let isTwoAddress = 0 in {
  def OR8mr  : I<0x08, MRMDestMem, (outs), (ins i8mem:$dst, GR8:$src),
                 "or{b}\t{$src, $dst|$dst, $src}",
                 [(store (or (load addr:$dst), GR8:$src), addr:$dst)]>;
  def OR16mr : I<0x09, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src),
                 "or{w}\t{$src, $dst|$dst, $src}",
                 [(store (or (load addr:$dst), GR16:$src), addr:$dst)]>, OpSize;
  def OR32mr : I<0x09, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src),
                 "or{l}\t{$src, $dst|$dst, $src}",
                 [(store (or (load addr:$dst), GR32:$src), addr:$dst)]>;
  def OR8mi    : Ii8<0x80, MRM1m, (outs), (ins i8mem :$dst, i8imm:$src),
                 "or{b}\t{$src, $dst|$dst, $src}",
                 [(store (or (loadi8 addr:$dst), imm:$src), addr:$dst)]>;
  def OR16mi   : Ii16<0x81, MRM1m, (outs), (ins i16mem:$dst, i16imm:$src),
                 "or{w}\t{$src, $dst|$dst, $src}",
                 [(store (or (loadi16 addr:$dst), imm:$src), addr:$dst)]>,
                 OpSize;
  def OR32mi   : Ii32<0x81, MRM1m, (outs), (ins i32mem:$dst, i32imm:$src),
                 "or{l}\t{$src, $dst|$dst, $src}",
                 [(store (or (loadi32 addr:$dst), imm:$src), addr:$dst)]>;
  def OR16mi8  : Ii8<0x83, MRM1m, (outs), (ins i16mem:$dst, i16i8imm:$src),
                 "or{w}\t{$src, $dst|$dst, $src}",
                 [(store (or (load addr:$dst), i16immSExt8:$src), addr:$dst)]>,
                     OpSize;
  def OR32mi8  : Ii8<0x83, MRM1m, (outs), (ins i32mem:$dst, i32i8imm:$src),
                 "or{l}\t{$src, $dst|$dst, $src}",
                 [(store (or (load addr:$dst), i32immSExt8:$src), addr:$dst)]>;
}


let isCommutable = 1 in {   // X = XOR Y, Z   --> X = XOR Z, Y
def XOR8rr   : I<0x30, MRMDestReg,
                 (outs GR8 :$dst), (ins GR8 :$src1, GR8 :$src2),
                 "xor{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (xor GR8:$src1, GR8:$src2))]>;
def XOR16rr  : I<0x31, MRMDestReg, 
                 (outs GR16:$dst), (ins GR16:$src1, GR16:$src2), 
                 "xor{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (xor GR16:$src1, GR16:$src2))]>, OpSize;
def XOR32rr  : I<0x31, MRMDestReg, 
                 (outs GR32:$dst), (ins GR32:$src1, GR32:$src2), 
                 "xor{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (xor GR32:$src1, GR32:$src2))]>;
}

def XOR8rm   : I<0x32, MRMSrcMem , 
                 (outs GR8 :$dst), (ins GR8:$src1, i8mem :$src2), 
                 "xor{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (xor GR8:$src1, (load addr:$src2)))]>;
def XOR16rm  : I<0x33, MRMSrcMem , 
                 (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2), 
                 "xor{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (xor GR16:$src1, (load addr:$src2)))]>, OpSize;
def XOR32rm  : I<0x33, MRMSrcMem , 
                 (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2), 
                 "xor{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (xor GR32:$src1, (load addr:$src2)))]>;

def XOR8ri   : Ii8<0x80, MRM6r, 
                   (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2), 
                   "xor{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (xor GR8:$src1, imm:$src2))]>;
def XOR16ri  : Ii16<0x81, MRM6r, 
                    (outs GR16:$dst), (ins GR16:$src1, i16imm:$src2), 
                    "xor{w}\t{$src2, $dst|$dst, $src2}",
                    [(set GR16:$dst, (xor GR16:$src1, imm:$src2))]>, OpSize;
def XOR32ri  : Ii32<0x81, MRM6r, 
                    (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2), 
                    "xor{l}\t{$src2, $dst|$dst, $src2}",
                    [(set GR32:$dst, (xor GR32:$src1, imm:$src2))]>;
def XOR16ri8 : Ii8<0x83, MRM6r, 
                   (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                   "xor{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (xor GR16:$src1, i16immSExt8:$src2))]>,
                   OpSize;
def XOR32ri8 : Ii8<0x83, MRM6r, 
                   (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
                   "xor{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (xor GR32:$src1, i32immSExt8:$src2))]>;
let isTwoAddress = 0 in {
  def XOR8mr   : I<0x30, MRMDestMem,
                   (outs), (ins i8mem :$dst, GR8 :$src),
                   "xor{b}\t{$src, $dst|$dst, $src}",
                   [(store (xor (load addr:$dst), GR8:$src), addr:$dst)]>;
  def XOR16mr  : I<0x31, MRMDestMem,
                   (outs), (ins i16mem:$dst, GR16:$src),
                   "xor{w}\t{$src, $dst|$dst, $src}",
                   [(store (xor (load addr:$dst), GR16:$src), addr:$dst)]>,
                   OpSize;
  def XOR32mr  : I<0x31, MRMDestMem,
                   (outs), (ins i32mem:$dst, GR32:$src),
                   "xor{l}\t{$src, $dst|$dst, $src}",
                   [(store (xor (load addr:$dst), GR32:$src), addr:$dst)]>;
  def XOR8mi   : Ii8<0x80, MRM6m,
                     (outs), (ins i8mem :$dst, i8imm :$src),
                     "xor{b}\t{$src, $dst|$dst, $src}",
                    [(store (xor (loadi8 addr:$dst), imm:$src), addr:$dst)]>;
  def XOR16mi  : Ii16<0x81, MRM6m,
                      (outs), (ins i16mem:$dst, i16imm:$src),
                      "xor{w}\t{$src, $dst|$dst, $src}",
                   [(store (xor (loadi16 addr:$dst), imm:$src), addr:$dst)]>,
                      OpSize;
  def XOR32mi  : Ii32<0x81, MRM6m,
                      (outs), (ins i32mem:$dst, i32imm:$src),
                      "xor{l}\t{$src, $dst|$dst, $src}",
                   [(store (xor (loadi32 addr:$dst), imm:$src), addr:$dst)]>;
  def XOR16mi8 : Ii8<0x83, MRM6m,
                     (outs), (ins i16mem:$dst, i16i8imm :$src),
                     "xor{w}\t{$src, $dst|$dst, $src}",
                 [(store (xor (load addr:$dst), i16immSExt8:$src), addr:$dst)]>,
                     OpSize;
  def XOR32mi8 : Ii8<0x83, MRM6m,
                     (outs), (ins i32mem:$dst, i32i8imm :$src),
                     "xor{l}\t{$src, $dst|$dst, $src}",
                 [(store (xor (load addr:$dst), i32immSExt8:$src), addr:$dst)]>;
}
} // Defs = [EFLAGS]

// Shift instructions
let Defs = [EFLAGS] in {
let Uses = [CL] in {
def SHL8rCL  : I<0xD2, MRM4r, (outs GR8 :$dst), (ins GR8 :$src),
                 "shl{b}\t{%cl, $dst|$dst, %CL}",
                 [(set GR8:$dst, (shl GR8:$src, CL))]>;
def SHL16rCL : I<0xD3, MRM4r, (outs GR16:$dst), (ins GR16:$src),
                 "shl{w}\t{%cl, $dst|$dst, %CL}",
                 [(set GR16:$dst, (shl GR16:$src, CL))]>, OpSize;
def SHL32rCL : I<0xD3, MRM4r, (outs GR32:$dst), (ins GR32:$src),
                 "shl{l}\t{%cl, $dst|$dst, %CL}",
                 [(set GR32:$dst, (shl GR32:$src, CL))]>;
}

def SHL8ri   : Ii8<0xC0, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
                   "shl{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (shl GR8:$src1, (i8 imm:$src2)))]>;
let isConvertibleToThreeAddress = 1 in {   // Can transform into LEA.
def SHL16ri  : Ii8<0xC1, MRM4r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
                   "shl{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (shl GR16:$src1, (i8 imm:$src2)))]>, OpSize;
def SHL32ri  : Ii8<0xC1, MRM4r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
                   "shl{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (shl GR32:$src1, (i8 imm:$src2)))]>;
}

// Shift left by one. Not used because (add x, x) is slightly cheaper.
def SHL8r1   : I<0xD0, MRM4r, (outs GR8 :$dst), (ins GR8 :$src1),
                 "shl{b}\t$dst", []>;
def SHL16r1  : I<0xD1, MRM4r, (outs GR16:$dst), (ins GR16:$src1),
                 "shl{w}\t$dst", []>, OpSize;
def SHL32r1  : I<0xD1, MRM4r, (outs GR32:$dst), (ins GR32:$src1),
                 "shl{l}\t$dst", []>;

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def SHL8mCL  : I<0xD2, MRM4m, (outs), (ins i8mem :$dst),
                   "shl{b}\t{%cl, $dst|$dst, %CL}",
                   [(store (shl (loadi8 addr:$dst), CL), addr:$dst)]>;
  def SHL16mCL : I<0xD3, MRM4m, (outs), (ins i16mem:$dst),
                   "shl{w}\t{%cl, $dst|$dst, %CL}",
                   [(store (shl (loadi16 addr:$dst), CL), addr:$dst)]>, OpSize;
  def SHL32mCL : I<0xD3, MRM4m, (outs), (ins i32mem:$dst),
                   "shl{l}\t{%cl, $dst|$dst, %CL}",
                   [(store (shl (loadi32 addr:$dst), CL), addr:$dst)]>;
  }
  def SHL8mi   : Ii8<0xC0, MRM4m, (outs), (ins i8mem :$dst, i8imm:$src),
                     "shl{b}\t{$src, $dst|$dst, $src}",
                  [(store (shl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
  def SHL16mi  : Ii8<0xC1, MRM4m, (outs), (ins i16mem:$dst, i8imm:$src),
                     "shl{w}\t{$src, $dst|$dst, $src}",
                 [(store (shl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
                     OpSize;
  def SHL32mi  : Ii8<0xC1, MRM4m, (outs), (ins i32mem:$dst, i8imm:$src),
                     "shl{l}\t{$src, $dst|$dst, $src}",
                 [(store (shl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>;

  // Shift by 1
  def SHL8m1   : I<0xD0, MRM4m, (outs), (ins i8mem :$dst),
                   "shl{b}\t$dst",
                  [(store (shl (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
  def SHL16m1  : I<0xD1, MRM4m, (outs), (ins i16mem:$dst),
                   "shl{w}\t$dst",
                 [(store (shl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
                     OpSize;
  def SHL32m1  : I<0xD1, MRM4m, (outs), (ins i32mem:$dst),
                   "shl{l}\t$dst",
                 [(store (shl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
}

let Uses = [CL] in {
def SHR8rCL  : I<0xD2, MRM5r, (outs GR8 :$dst), (ins GR8 :$src),
                 "shr{b}\t{%cl, $dst|$dst, %CL}",
                 [(set GR8:$dst, (srl GR8:$src, CL))]>;
def SHR16rCL : I<0xD3, MRM5r, (outs GR16:$dst), (ins GR16:$src),
                 "shr{w}\t{%cl, $dst|$dst, %CL}",
                 [(set GR16:$dst, (srl GR16:$src, CL))]>, OpSize;
def SHR32rCL : I<0xD3, MRM5r, (outs GR32:$dst), (ins GR32:$src),
                 "shr{l}\t{%cl, $dst|$dst, %CL}",
                 [(set GR32:$dst, (srl GR32:$src, CL))]>;
}

def SHR8ri   : Ii8<0xC0, MRM5r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2),
                   "shr{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (srl GR8:$src1, (i8 imm:$src2)))]>;
def SHR16ri  : Ii8<0xC1, MRM5r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
                   "shr{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (srl GR16:$src1, (i8 imm:$src2)))]>, OpSize;
def SHR32ri  : Ii8<0xC1, MRM5r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
                   "shr{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (srl GR32:$src1, (i8 imm:$src2)))]>;

// Shift by 1
def SHR8r1   : I<0xD0, MRM5r, (outs GR8:$dst), (ins GR8:$src1),
                 "shr{b}\t$dst",
                 [(set GR8:$dst, (srl GR8:$src1, (i8 1)))]>;
def SHR16r1  : I<0xD1, MRM5r, (outs GR16:$dst), (ins GR16:$src1),
                 "shr{w}\t$dst",
                 [(set GR16:$dst, (srl GR16:$src1, (i8 1)))]>, OpSize;
def SHR32r1  : I<0xD1, MRM5r, (outs GR32:$dst), (ins GR32:$src1),
                 "shr{l}\t$dst",
                 [(set GR32:$dst, (srl GR32:$src1, (i8 1)))]>;

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def SHR8mCL  : I<0xD2, MRM5m, (outs), (ins i8mem :$dst),
                   "shr{b}\t{%cl, $dst|$dst, %CL}",
                   [(store (srl (loadi8 addr:$dst), CL), addr:$dst)]>;
  def SHR16mCL : I<0xD3, MRM5m, (outs), (ins i16mem:$dst),
                   "shr{w}\t{%cl, $dst|$dst, %CL}",
                   [(store (srl (loadi16 addr:$dst), CL), addr:$dst)]>,
                   OpSize;
  def SHR32mCL : I<0xD3, MRM5m, (outs), (ins i32mem:$dst),
                   "shr{l}\t{%cl, $dst|$dst, %CL}",
                   [(store (srl (loadi32 addr:$dst), CL), addr:$dst)]>;
  }
  def SHR8mi   : Ii8<0xC0, MRM5m, (outs), (ins i8mem :$dst, i8imm:$src),
                     "shr{b}\t{$src, $dst|$dst, $src}",
                  [(store (srl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
  def SHR16mi  : Ii8<0xC1, MRM5m, (outs), (ins i16mem:$dst, i8imm:$src),
                     "shr{w}\t{$src, $dst|$dst, $src}",
                 [(store (srl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
                     OpSize;
  def SHR32mi  : Ii8<0xC1, MRM5m, (outs), (ins i32mem:$dst, i8imm:$src),
                     "shr{l}\t{$src, $dst|$dst, $src}",
                 [(store (srl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>;

  // Shift by 1
  def SHR8m1   : I<0xD0, MRM5m, (outs), (ins i8mem :$dst),
                   "shr{b}\t$dst",
                  [(store (srl (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
  def SHR16m1  : I<0xD1, MRM5m, (outs), (ins i16mem:$dst),
                   "shr{w}\t$dst",
                 [(store (srl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,OpSize;
  def SHR32m1  : I<0xD1, MRM5m, (outs), (ins i32mem:$dst),
                   "shr{l}\t$dst",
                 [(store (srl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
}

let Uses = [CL] in {
def SAR8rCL  : I<0xD2, MRM7r, (outs GR8 :$dst), (ins GR8 :$src),
                 "sar{b}\t{%cl, $dst|$dst, %CL}",
                 [(set GR8:$dst, (sra GR8:$src, CL))]>;
def SAR16rCL : I<0xD3, MRM7r, (outs GR16:$dst), (ins GR16:$src),
                 "sar{w}\t{%cl, $dst|$dst, %CL}",
                 [(set GR16:$dst, (sra GR16:$src, CL))]>, OpSize;
def SAR32rCL : I<0xD3, MRM7r, (outs GR32:$dst), (ins GR32:$src),
                 "sar{l}\t{%cl, $dst|$dst, %CL}",
                 [(set GR32:$dst, (sra GR32:$src, CL))]>;
}

def SAR8ri   : Ii8<0xC0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
                   "sar{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (sra GR8:$src1, (i8 imm:$src2)))]>;
def SAR16ri  : Ii8<0xC1, MRM7r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
                   "sar{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (sra GR16:$src1, (i8 imm:$src2)))]>,
                   OpSize;
def SAR32ri  : Ii8<0xC1, MRM7r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
                   "sar{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (sra GR32:$src1, (i8 imm:$src2)))]>;

// Shift by 1
def SAR8r1   : I<0xD0, MRM7r, (outs GR8 :$dst), (ins GR8 :$src1),
                 "sar{b}\t$dst",
                 [(set GR8:$dst, (sra GR8:$src1, (i8 1)))]>;
def SAR16r1  : I<0xD1, MRM7r, (outs GR16:$dst), (ins GR16:$src1),
                 "sar{w}\t$dst",
                 [(set GR16:$dst, (sra GR16:$src1, (i8 1)))]>, OpSize;
def SAR32r1  : I<0xD1, MRM7r, (outs GR32:$dst), (ins GR32:$src1),
                 "sar{l}\t$dst",
                 [(set GR32:$dst, (sra GR32:$src1, (i8 1)))]>;

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def SAR8mCL  : I<0xD2, MRM7m, (outs), (ins i8mem :$dst),
                   "sar{b}\t{%cl, $dst|$dst, %CL}",
                   [(store (sra (loadi8 addr:$dst), CL), addr:$dst)]>;
  def SAR16mCL : I<0xD3, MRM7m, (outs), (ins i16mem:$dst),
                   "sar{w}\t{%cl, $dst|$dst, %CL}",
                   [(store (sra (loadi16 addr:$dst), CL), addr:$dst)]>, OpSize;
  def SAR32mCL : I<0xD3, MRM7m, (outs), (ins i32mem:$dst), 
                   "sar{l}\t{%cl, $dst|$dst, %CL}",
                   [(store (sra (loadi32 addr:$dst), CL), addr:$dst)]>;
  }
  def SAR8mi   : Ii8<0xC0, MRM7m, (outs), (ins i8mem :$dst, i8imm:$src),
                     "sar{b}\t{$src, $dst|$dst, $src}",
                  [(store (sra (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
  def SAR16mi  : Ii8<0xC1, MRM7m, (outs), (ins i16mem:$dst, i8imm:$src),
                     "sar{w}\t{$src, $dst|$dst, $src}",
                 [(store (sra (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
                     OpSize;
  def SAR32mi  : Ii8<0xC1, MRM7m, (outs), (ins i32mem:$dst, i8imm:$src),
                     "sar{l}\t{$src, $dst|$dst, $src}",
                 [(store (sra (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>;

  // Shift by 1
  def SAR8m1   : I<0xD0, MRM7m, (outs), (ins i8mem :$dst),
                   "sar{b}\t$dst",
                  [(store (sra (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
  def SAR16m1  : I<0xD1, MRM7m, (outs), (ins i16mem:$dst),
                   "sar{w}\t$dst",
                 [(store (sra (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
                     OpSize;
  def SAR32m1  : I<0xD1, MRM7m, (outs), (ins i32mem:$dst),
                   "sar{l}\t$dst",
                 [(store (sra (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
}

// Rotate instructions
// FIXME: provide shorter instructions when imm8 == 1
let Uses = [CL] in {
def ROL8rCL  : I<0xD2, MRM0r, (outs GR8 :$dst), (ins GR8 :$src),
                 "rol{b}\t{%cl, $dst|$dst, %CL}",
                 [(set GR8:$dst, (rotl GR8:$src, CL))]>;
def ROL16rCL : I<0xD3, MRM0r, (outs GR16:$dst), (ins GR16:$src),
                 "rol{w}\t{%cl, $dst|$dst, %CL}",
                 [(set GR16:$dst, (rotl GR16:$src, CL))]>, OpSize;
def ROL32rCL : I<0xD3, MRM0r, (outs GR32:$dst), (ins GR32:$src),
                 "rol{l}\t{%cl, $dst|$dst, %CL}",
                 [(set GR32:$dst, (rotl GR32:$src, CL))]>;
}

def ROL8ri   : Ii8<0xC0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
                   "rol{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (rotl GR8:$src1, (i8 imm:$src2)))]>;
def ROL16ri  : Ii8<0xC1, MRM0r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
                   "rol{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (rotl GR16:$src1, (i8 imm:$src2)))]>, OpSize;
def ROL32ri  : Ii8<0xC1, MRM0r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
                   "rol{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (rotl GR32:$src1, (i8 imm:$src2)))]>;

// Rotate by 1
def ROL8r1   : I<0xD0, MRM0r, (outs GR8 :$dst), (ins GR8 :$src1),
                 "rol{b}\t$dst",
                 [(set GR8:$dst, (rotl GR8:$src1, (i8 1)))]>;
def ROL16r1  : I<0xD1, MRM0r, (outs GR16:$dst), (ins GR16:$src1),
                 "rol{w}\t$dst",
                 [(set GR16:$dst, (rotl GR16:$src1, (i8 1)))]>, OpSize;
def ROL32r1  : I<0xD1, MRM0r, (outs GR32:$dst), (ins GR32:$src1),
                 "rol{l}\t$dst",
                 [(set GR32:$dst, (rotl GR32:$src1, (i8 1)))]>;

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def ROL8mCL  : I<0xD2, MRM0m, (outs), (ins i8mem :$dst),
                   "rol{b}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotl (loadi8 addr:$dst), CL), addr:$dst)]>;
  def ROL16mCL : I<0xD3, MRM0m, (outs), (ins i16mem:$dst),
                   "rol{w}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotl (loadi16 addr:$dst), CL), addr:$dst)]>, OpSize;
  def ROL32mCL : I<0xD3, MRM0m, (outs), (ins i32mem:$dst),
                   "rol{l}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotl (loadi32 addr:$dst), CL), addr:$dst)]>;
  }
  def ROL8mi   : Ii8<0xC0, MRM0m, (outs), (ins i8mem :$dst, i8imm:$src),
                     "rol{b}\t{$src, $dst|$dst, $src}",
                 [(store (rotl (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
  def ROL16mi  : Ii8<0xC1, MRM0m, (outs), (ins i16mem:$dst, i8imm:$src),
                     "rol{w}\t{$src, $dst|$dst, $src}",
                [(store (rotl (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
                     OpSize;
  def ROL32mi  : Ii8<0xC1, MRM0m, (outs), (ins i32mem:$dst, i8imm:$src),
                     "rol{l}\t{$src, $dst|$dst, $src}",
                [(store (rotl (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>;

  // Rotate by 1
  def ROL8m1   : I<0xD0, MRM0m, (outs), (ins i8mem :$dst),
                   "rol{b}\t$dst",
                 [(store (rotl (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
  def ROL16m1  : I<0xD1, MRM0m, (outs), (ins i16mem:$dst),
                   "rol{w}\t$dst",
                [(store (rotl (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
                     OpSize;
  def ROL32m1  : I<0xD1, MRM0m, (outs), (ins i32mem:$dst),
                   "rol{l}\t$dst",
                [(store (rotl (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
}

let Uses = [CL] in {
def ROR8rCL  : I<0xD2, MRM1r, (outs GR8 :$dst), (ins GR8 :$src),
                 "ror{b}\t{%cl, $dst|$dst, %CL}",
                 [(set GR8:$dst, (rotr GR8:$src, CL))]>;
def ROR16rCL : I<0xD3, MRM1r, (outs GR16:$dst), (ins GR16:$src),
                 "ror{w}\t{%cl, $dst|$dst, %CL}",
                 [(set GR16:$dst, (rotr GR16:$src, CL))]>, OpSize;
def ROR32rCL : I<0xD3, MRM1r, (outs GR32:$dst), (ins GR32:$src),
                 "ror{l}\t{%cl, $dst|$dst, %CL}",
                 [(set GR32:$dst, (rotr GR32:$src, CL))]>;
}

def ROR8ri   : Ii8<0xC0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1, i8imm:$src2),
                   "ror{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (rotr GR8:$src1, (i8 imm:$src2)))]>;
def ROR16ri  : Ii8<0xC1, MRM1r, (outs GR16:$dst), (ins GR16:$src1, i8imm:$src2),
                   "ror{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (rotr GR16:$src1, (i8 imm:$src2)))]>, OpSize;
def ROR32ri  : Ii8<0xC1, MRM1r, (outs GR32:$dst), (ins GR32:$src1, i8imm:$src2),
                   "ror{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (rotr GR32:$src1, (i8 imm:$src2)))]>;

// Rotate by 1
def ROR8r1   : I<0xD0, MRM1r, (outs GR8 :$dst), (ins GR8 :$src1),
                 "ror{b}\t$dst",
                 [(set GR8:$dst, (rotr GR8:$src1, (i8 1)))]>;
def ROR16r1  : I<0xD1, MRM1r, (outs GR16:$dst), (ins GR16:$src1),
                 "ror{w}\t$dst",
                 [(set GR16:$dst, (rotr GR16:$src1, (i8 1)))]>, OpSize;
def ROR32r1  : I<0xD1, MRM1r, (outs GR32:$dst), (ins GR32:$src1),
                 "ror{l}\t$dst",
                 [(set GR32:$dst, (rotr GR32:$src1, (i8 1)))]>;

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def ROR8mCL  : I<0xD2, MRM1m, (outs), (ins i8mem :$dst),
                   "ror{b}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotr (loadi8 addr:$dst), CL), addr:$dst)]>;
  def ROR16mCL : I<0xD3, MRM1m, (outs), (ins i16mem:$dst),
                   "ror{w}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotr (loadi16 addr:$dst), CL), addr:$dst)]>, OpSize;
  def ROR32mCL : I<0xD3, MRM1m, (outs), (ins i32mem:$dst), 
                   "ror{l}\t{%cl, $dst|$dst, %CL}",
                   [(store (rotr (loadi32 addr:$dst), CL), addr:$dst)]>;
  }
  def ROR8mi   : Ii8<0xC0, MRM1m, (outs), (ins i8mem :$dst, i8imm:$src),
                     "ror{b}\t{$src, $dst|$dst, $src}",
                 [(store (rotr (loadi8 addr:$dst), (i8 imm:$src)), addr:$dst)]>;
  def ROR16mi  : Ii8<0xC1, MRM1m, (outs), (ins i16mem:$dst, i8imm:$src),
                     "ror{w}\t{$src, $dst|$dst, $src}",
                [(store (rotr (loadi16 addr:$dst), (i8 imm:$src)), addr:$dst)]>,
                     OpSize;
  def ROR32mi  : Ii8<0xC1, MRM1m, (outs), (ins i32mem:$dst, i8imm:$src),
                     "ror{l}\t{$src, $dst|$dst, $src}",
                [(store (rotr (loadi32 addr:$dst), (i8 imm:$src)), addr:$dst)]>;

  // Rotate by 1
  def ROR8m1   : I<0xD0, MRM1m, (outs), (ins i8mem :$dst),
                   "ror{b}\t$dst",
                 [(store (rotr (loadi8 addr:$dst), (i8 1)), addr:$dst)]>;
  def ROR16m1  : I<0xD1, MRM1m, (outs), (ins i16mem:$dst),
                   "ror{w}\t$dst",
                [(store (rotr (loadi16 addr:$dst), (i8 1)), addr:$dst)]>,
                     OpSize;
  def ROR32m1  : I<0xD1, MRM1m, (outs), (ins i32mem:$dst),
                   "ror{l}\t$dst",
                [(store (rotr (loadi32 addr:$dst), (i8 1)), addr:$dst)]>;
}



// Double shift instructions (generalizations of rotate)
let Uses = [CL] in {
def SHLD32rrCL : I<0xA5, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                   "shld{l}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                   [(set GR32:$dst, (X86shld GR32:$src1, GR32:$src2, CL))]>, TB;
def SHRD32rrCL : I<0xAD, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                   "shrd{l}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                   [(set GR32:$dst, (X86shrd GR32:$src1, GR32:$src2, CL))]>, TB;
def SHLD16rrCL : I<0xA5, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                   "shld{w}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                   [(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2, CL))]>,
                   TB, OpSize;
def SHRD16rrCL : I<0xAD, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                   "shrd{w}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                   [(set GR16:$dst, (X86shrd GR16:$src1, GR16:$src2, CL))]>,
                   TB, OpSize;
}

let isCommutable = 1 in {  // These instructions commute to each other.
def SHLD32rri8 : Ii8<0xA4, MRMDestReg,
                     (outs GR32:$dst), (ins GR32:$src1, GR32:$src2, i8imm:$src3),
                     "shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                     [(set GR32:$dst, (X86shld GR32:$src1, GR32:$src2,
                                      (i8 imm:$src3)))]>,
                 TB;
def SHRD32rri8 : Ii8<0xAC, MRMDestReg,
                     (outs GR32:$dst), (ins GR32:$src1, GR32:$src2, i8imm:$src3),
                     "shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                     [(set GR32:$dst, (X86shrd GR32:$src1, GR32:$src2,
                                      (i8 imm:$src3)))]>,
                 TB;
def SHLD16rri8 : Ii8<0xA4, MRMDestReg,
                     (outs GR16:$dst), (ins GR16:$src1, GR16:$src2, i8imm:$src3),
                     "shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                     [(set GR16:$dst, (X86shld GR16:$src1, GR16:$src2,
                                      (i8 imm:$src3)))]>,
                     TB, OpSize;
def SHRD16rri8 : Ii8<0xAC, MRMDestReg,
                     (outs GR16:$dst), (ins GR16:$src1, GR16:$src2, i8imm:$src3),
                     "shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                     [(set GR16:$dst, (X86shrd GR16:$src1, GR16:$src2,
                                      (i8 imm:$src3)))]>,
                     TB, OpSize;
}

let isTwoAddress = 0 in {
  let Uses = [CL] in {
  def SHLD32mrCL : I<0xA5, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
                     "shld{l}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                     [(store (X86shld (loadi32 addr:$dst), GR32:$src2, CL),
                       addr:$dst)]>, TB;
  def SHRD32mrCL : I<0xAD, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
                    "shrd{l}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                    [(store (X86shrd (loadi32 addr:$dst), GR32:$src2, CL),
                      addr:$dst)]>, TB;
  }
  def SHLD32mri8 : Ii8<0xA4, MRMDestMem,
                      (outs), (ins i32mem:$dst, GR32:$src2, i8imm:$src3),
                      "shld{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                      [(store (X86shld (loadi32 addr:$dst), GR32:$src2,
                                        (i8 imm:$src3)), addr:$dst)]>,
                      TB;
  def SHRD32mri8 : Ii8<0xAC, MRMDestMem, 
                       (outs), (ins i32mem:$dst, GR32:$src2, i8imm:$src3),
                       "shrd{l}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                       [(store (X86shrd (loadi32 addr:$dst), GR32:$src2,
                                         (i8 imm:$src3)), addr:$dst)]>,
                       TB;

  let Uses = [CL] in {
  def SHLD16mrCL : I<0xA5, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
                     "shld{w}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                     [(store (X86shld (loadi16 addr:$dst), GR16:$src2, CL),
                       addr:$dst)]>, TB, OpSize;
  def SHRD16mrCL : I<0xAD, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
                    "shrd{w}\t{%cl, $src2, $dst|$dst, $src2, %CL}",
                    [(store (X86shrd (loadi16 addr:$dst), GR16:$src2, CL),
                      addr:$dst)]>, TB, OpSize;
  }
  def SHLD16mri8 : Ii8<0xA4, MRMDestMem,
                      (outs), (ins i16mem:$dst, GR16:$src2, i8imm:$src3),
                      "shld{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                      [(store (X86shld (loadi16 addr:$dst), GR16:$src2,
                                        (i8 imm:$src3)), addr:$dst)]>,
                      TB, OpSize;
  def SHRD16mri8 : Ii8<0xAC, MRMDestMem, 
                       (outs), (ins i16mem:$dst, GR16:$src2, i8imm:$src3),
                       "shrd{w}\t{$src3, $src2, $dst|$dst, $src2, $src3}",
                      [(store (X86shrd (loadi16 addr:$dst), GR16:$src2,
                                        (i8 imm:$src3)), addr:$dst)]>,
                       TB, OpSize;
}
} // Defs = [EFLAGS]


// Arithmetic.
let Defs = [EFLAGS] in {
let isCommutable = 1 in {   // X = ADD Y, Z   --> X = ADD Z, Y
def ADD8rr   : I<0x00, MRMDestReg, (outs GR8 :$dst),
                                   (ins GR8 :$src1, GR8 :$src2),
                 "add{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (add GR8:$src1, GR8:$src2))]>;
let isConvertibleToThreeAddress = 1 in {   // Can transform into LEA.
def ADD16rr  : I<0x01, MRMDestReg, (outs GR16:$dst),
                                   (ins GR16:$src1, GR16:$src2),
                 "add{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (add GR16:$src1, GR16:$src2))]>, OpSize;
def ADD32rr  : I<0x01, MRMDestReg, (outs GR32:$dst),
                                   (ins GR32:$src1, GR32:$src2),
                 "add{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
} // end isConvertibleToThreeAddress
} // end isCommutable
def ADD8rm   : I<0x02, MRMSrcMem, (outs GR8 :$dst),
                                  (ins GR8 :$src1, i8mem :$src2),
                 "add{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (add GR8:$src1, (load addr:$src2)))]>;
def ADD16rm  : I<0x03, MRMSrcMem, (outs GR16:$dst),
                                  (ins GR16:$src1, i16mem:$src2),
                 "add{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (add GR16:$src1, (load addr:$src2)))]>,OpSize;
def ADD32rm  : I<0x03, MRMSrcMem, (outs GR32:$dst),
                                  (ins GR32:$src1, i32mem:$src2),
                 "add{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (add GR32:$src1, (load addr:$src2)))]>;

def ADD8ri   : Ii8<0x80, MRM0r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2),
                   "add{b}\t{$src2, $dst|$dst, $src2}",
                   [(set GR8:$dst, (add GR8:$src1, imm:$src2))]>;

let isConvertibleToThreeAddress = 1 in {   // Can transform into LEA.
def ADD16ri  : Ii16<0x81, MRM0r, (outs GR16:$dst),
                                 (ins GR16:$src1, i16imm:$src2),
                    "add{w}\t{$src2, $dst|$dst, $src2}",
                    [(set GR16:$dst, (add GR16:$src1, imm:$src2))]>, OpSize;
def ADD32ri  : Ii32<0x81, MRM0r, (outs GR32:$dst),
                                 (ins GR32:$src1, i32imm:$src2),
                    "add{l}\t{$src2, $dst|$dst, $src2}",
                    [(set GR32:$dst, (add GR32:$src1, imm:$src2))]>;
def ADD16ri8 : Ii8<0x83, MRM0r, (outs GR16:$dst),
                                (ins GR16:$src1, i16i8imm:$src2),
                   "add{w}\t{$src2, $dst|$dst, $src2}",
                [(set GR16:$dst, (add GR16:$src1, i16immSExt8:$src2))]>, OpSize;
def ADD32ri8 : Ii8<0x83, MRM0r, (outs GR32:$dst),
                                (ins GR32:$src1, i32i8imm:$src2),
                   "add{l}\t{$src2, $dst|$dst, $src2}",
                [(set GR32:$dst, (add GR32:$src1, i32immSExt8:$src2))]>;
}

let isTwoAddress = 0 in {
  def ADD8mr   : I<0x00, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src2),
                   "add{b}\t{$src2, $dst|$dst, $src2}",
                   [(store (add (load addr:$dst), GR8:$src2), addr:$dst)]>;
  def ADD16mr  : I<0x01, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
                   "add{w}\t{$src2, $dst|$dst, $src2}",
                   [(store (add (load addr:$dst), GR16:$src2), addr:$dst)]>,
                 OpSize;
  def ADD32mr  : I<0x01, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
                   "add{l}\t{$src2, $dst|$dst, $src2}",
                   [(store (add (load addr:$dst), GR32:$src2), addr:$dst)]>;
  def ADD8mi   : Ii8<0x80, MRM0m, (outs), (ins i8mem :$dst, i8imm :$src2),
                     "add{b}\t{$src2, $dst|$dst, $src2}",
                   [(store (add (loadi8 addr:$dst), imm:$src2), addr:$dst)]>;
  def ADD16mi  : Ii16<0x81, MRM0m, (outs), (ins i16mem:$dst, i16imm:$src2),
                      "add{w}\t{$src2, $dst|$dst, $src2}",
                  [(store (add (loadi16 addr:$dst), imm:$src2), addr:$dst)]>,
                 OpSize;
  def ADD32mi  : Ii32<0x81, MRM0m, (outs), (ins i32mem:$dst, i32imm:$src2),
                      "add{l}\t{$src2, $dst|$dst, $src2}",
                  [(store (add (loadi32 addr:$dst), imm:$src2), addr:$dst)]>;
  def ADD16mi8 : Ii8<0x83, MRM0m, (outs), (ins i16mem:$dst, i16i8imm :$src2),
                     "add{w}\t{$src2, $dst|$dst, $src2}",
                [(store (add (load addr:$dst), i16immSExt8:$src2), addr:$dst)]>,
                 OpSize;
  def ADD32mi8 : Ii8<0x83, MRM0m, (outs), (ins i32mem:$dst, i32i8imm :$src2),
                     "add{l}\t{$src2, $dst|$dst, $src2}",
                [(store (add (load addr:$dst), i32immSExt8:$src2), addr:$dst)]>;
}

let Uses = [EFLAGS] in {
let isCommutable = 1 in {  // X = ADC Y, Z --> X = ADC Z, Y
def ADC32rr  : I<0x11, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "adc{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (adde GR32:$src1, GR32:$src2))]>;
}
def ADC32rm  : I<0x13, MRMSrcMem , (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                 "adc{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (adde GR32:$src1, (load addr:$src2)))]>;
def ADC32ri  : Ii32<0x81, MRM2r, (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
                    "adc{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (adde GR32:$src1, imm:$src2))]>;
def ADC32ri8 : Ii8<0x83, MRM2r, (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
                   "adc{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (adde GR32:$src1, i32immSExt8:$src2))]>;

let isTwoAddress = 0 in {
  def ADC32mr  : I<0x11, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2),
                   "adc{l}\t{$src2, $dst|$dst, $src2}",
                   [(store (adde (load addr:$dst), GR32:$src2), addr:$dst)]>;
  def ADC32mi  : Ii32<0x81, MRM2m, (outs), (ins i32mem:$dst, i32imm:$src2),
                      "adc{l}\t{$src2, $dst|$dst, $src2}",
                  [(store (adde (loadi32 addr:$dst), imm:$src2), addr:$dst)]>;
  def ADC32mi8 : Ii8<0x83, MRM2m, (outs), (ins i32mem:$dst, i32i8imm :$src2),
                     "adc{l}\t{$src2, $dst|$dst, $src2}",
             [(store (adde (load addr:$dst), i32immSExt8:$src2), addr:$dst)]>;
}
} // Uses = [EFLAGS]

def SUB8rr   : I<0x28, MRMDestReg, (outs GR8 :$dst), (ins GR8 :$src1, GR8 :$src2),
                 "sub{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (sub GR8:$src1, GR8:$src2))]>;
def SUB16rr  : I<0x29, MRMDestReg, (outs GR16:$dst), (ins GR16:$src1, GR16:$src2),
                 "sub{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (sub GR16:$src1, GR16:$src2))]>, OpSize;
def SUB32rr  : I<0x29, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
                 "sub{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (sub GR32:$src1, GR32:$src2))]>;
def SUB8rm   : I<0x2A, MRMSrcMem, (outs GR8 :$dst), (ins GR8 :$src1, i8mem :$src2),
                 "sub{b}\t{$src2, $dst|$dst, $src2}",
                 [(set GR8:$dst, (sub GR8:$src1, (load addr:$src2)))]>;
def SUB16rm  : I<0x2B, MRMSrcMem, (outs GR16:$dst), (ins GR16:$src1, i16mem:$src2),
                 "sub{w}\t{$src2, $dst|$dst, $src2}",
                 [(set GR16:$dst, (sub GR16:$src1, (load addr:$src2)))]>, OpSize;
def SUB32rm  : I<0x2B, MRMSrcMem, (outs GR32:$dst), (ins GR32:$src1, i32mem:$src2),
                 "sub{l}\t{$src2, $dst|$dst, $src2}",
                 [(set GR32:$dst, (sub GR32:$src1, (load addr:$src2)))]>;

def SUB8ri   : Ii8 <0x80, MRM5r, (outs GR8:$dst), (ins GR8:$src1, i8imm:$src2),
                    "sub{b}\t{$src2, $dst|$dst, $src2}",
                    [(set GR8:$dst, (sub GR8:$src1, imm:$src2))]>;
def SUB16ri  : Ii16<0x81, MRM5r, (outs GR16:$dst), (ins GR16:$src1, i16imm:$src2),
                    "sub{w}\t{$src2, $dst|$dst, $src2}",
                    [(set GR16:$dst, (sub GR16:$src1, imm:$src2))]>, OpSize;
def SUB32ri  : Ii32<0x81, MRM5r, (outs GR32:$dst), (ins GR32:$src1, i32imm:$src2),
                    "sub{l}\t{$src2, $dst|$dst, $src2}",
                    [(set GR32:$dst, (sub GR32:$src1, imm:$src2))]>;
def SUB16ri8 : Ii8<0x83, MRM5r, (outs GR16:$dst), (ins GR16:$src1, i16i8imm:$src2),
                   "sub{w}\t{$src2, $dst|$dst, $src2}",
                   [(set GR16:$dst, (sub GR16:$src1, i16immSExt8:$src2))]>,
               OpSize;
def SUB32ri8 : Ii8<0x83, MRM5r, (outs GR32:$dst), (ins GR32:$src1, i32i8imm:$src2),
                   "sub{l}\t{$src2, $dst|$dst, $src2}",
                   [(set GR32:$dst, (sub GR32:$src1, i32immSExt8:$src2))]>;
let isTwoAddress = 0 in {
  def SUB8mr   : I<0x28, MRMDestMem, (outs), (ins i8mem :$dst, GR8 :$src2),
                   "sub{b}\t{$src2, $dst|$dst, $src2}",
                   [(store (sub (load addr:$dst), GR8:$src2), addr:$dst)]>;
  def SUB16mr  : I<0x29, MRMDestMem, (outs), (ins i16mem:$dst, GR16:$src2),
                   "sub{w}\t{$src2, $dst|$dst, $src2}",
                   [(store (sub (load addr:$dst), GR16:$src2), addr:$dst)]>,
                 OpSize;
  def SUB32mr  : I<0x29, MRMDestMem, (outs), (ins i32mem:$dst, GR32:$src2), 
                   "sub{l}\t{$src2, $dst|$dst, $src2}",
                   [(store (sub (load addr:$dst), GR32:$src2), addr:$dst)]>;
  def SUB8mi   : Ii8<0x80, MRM5m, (outs), (ins i8mem :$dst, i8imm:$src2), 
                     "sub{b}\t{$src2, $dst|$dst, $src2}",
                   [(store (sub (loadi8 addr:$dst), imm:$src2), addr:$dst)]>;
  def SUB16mi  : Ii16<0x81, MRM5m, (outs), (ins i16mem:$dst, i16imm:$src2), 
                      "sub{w}\t{$src2, $dst|$dst, $src2}",
                  [(store (sub (loadi16 addr:$dst), imm:$src2), addr:$dst)]>,
                 OpSize;
  def SUB32mi  : Ii32<0x81, MRM5m, (outs), (ins i32mem:$dst, i32imm:$src2), 
                      "sub{l}\t{$src2, $dst|$dst, $src2}",
                  [(store (sub (loadi32 addr:$dst), imm:$src2), addr:$dst)]>;
  def SUB16mi8 : Ii8<0x83, MRM5m, (outs), (ins i16mem:$dst, i16i8imm :$src2), 
                     "sub{w}\t{$src2, $dst|$dst, $src2}",
                [(store (sub (load addr:$dst), i16immSExt8:$src2), addr:$dst)]>,
                 OpSize;
  def SUB32mi8 : Ii8<0x83, MRM5m, (outs), (ins i32mem:$dst, i32i8imm :$src2), 
                     "sub{l}\t{$src2, $dst|$dst, $src2}",
                [(store (sub (load addr:$dst), i32immSExt8:$src2), addr:$dst)]>;