lib/Target/PowerPC/PPCInstrAltivec.td

//===- PPCInstrAltivec.td - The PowerPC Altivec Extension --*- tablegen -*-===//
// 
//                     The LLVM Compiler Infrastructure
//
// This file was developed by Chris Lattner and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
// 
//===----------------------------------------------------------------------===//
//
// This file describes the Altivec extension to the PowerPC instruction set.
//
//===----------------------------------------------------------------------===//

//===----------------------------------------------------------------------===//
// Altivec transformation functions and pattern fragments.
//

// VSPLT_get_imm xform function: convert vector_shuffle mask to VSPLT* imm.
def VSPLT_get_imm : SDNodeXForm<build_vector, [{
  return getI32Imm(PPC::getVSPLTImmediate(N));
}]>;

def VSPLT_shuffle_mask : PatLeaf<(build_vector), [{
  return PPC::isSplatShuffleMask(N);
}], VSPLT_get_imm>;


// VSPLTISB_get_imm xform function: convert build_vector to VSPLTISB imm.
def VSPLTISB_get_imm : SDNodeXForm<build_vector, [{
  char Val;
  PPC::isVecSplatImm(N, 1, &Val);
  return getI32Imm(Val);
}]>;
def vecspltisb : PatLeaf<(build_vector), [{
  return PPC::isVecSplatImm(N, 1);
}], VSPLTISB_get_imm>;

// VSPLTISH_get_imm xform function: convert build_vector to VSPLTISH imm.
def VSPLTISH_get_imm : SDNodeXForm<build_vector, [{
  char Val;
  PPC::isVecSplatImm(N, 2, &Val);
  return getI32Imm(Val);
}]>;
def vecspltish : PatLeaf<(build_vector), [{
  return PPC::isVecSplatImm(N, 2);
}], VSPLTISH_get_imm>;

// VSPLTISW_get_imm xform function: convert build_vector to VSPLTISW imm.
def VSPLTISW_get_imm : SDNodeXForm<build_vector, [{
  char Val;
  PPC::isVecSplatImm(N, 4, &Val);
  return getI32Imm(Val);
}]>;
def vecspltisw : PatLeaf<(build_vector), [{
  return PPC::isVecSplatImm(N, 4);
}], VSPLTISW_get_imm>;

class isVDOT {   // vector dot instruction.
  list<Register> Defs = [CR6];
  bit RC = 1;
}

//===----------------------------------------------------------------------===//
// Instruction Definitions.

def IMPLICIT_DEF_VRRC : Pseudo<(ops VRRC:$rD), "; $rD = IMPLICIT_DEF_VRRC",
                               [(set VRRC:$rD, (v4f32 (undef)))]>;

let isLoad = 1, PPC970_Unit = 2 in {  // Loads.
def LVEBX: XForm_1<31,   7, (ops VRRC:$vD, memrr:$src),
                   "lvebx $vD, $src", LdStGeneral,
                   []>;
def LVEHX: XForm_1<31,  39, (ops VRRC:$vD, memrr:$src),
                   "lvehx $vD, $src", LdStGeneral,
                   []>;
def LVEWX: XForm_1<31,  71, (ops VRRC:$vD, memrr:$src),
                   "lvewx $vD, $src", LdStGeneral,
                   []>;
def LVX  : XForm_1<31, 103, (ops VRRC:$vD, memrr:$src),
                   "lvx $vD, $src", LdStGeneral,
                   [(set VRRC:$vD, (v4f32 (load xoaddr:$src)))]>;
}

def LVSL : XForm_1<31,   6, (ops VRRC:$vD,  GPRC:$base, GPRC:$rA),
                   "lvsl $vD, $base, $rA", LdStGeneral,
                   []>, PPC970_Unit_LSU;
def LVSR : XForm_1<31,  38, (ops VRRC:$vD,  GPRC:$base, GPRC:$rA),
                   "lvsl $vD, $base, $rA", LdStGeneral,
                   []>, PPC970_Unit_LSU;

let isStore = 1, noResults = 1, PPC970_Unit = 2 in {   // Stores.
def STVEBX: XForm_8<31, 135, (ops VRRC:$rS, memrr:$dst),
                   "stvebx $rS, $dst", LdStGeneral,
                   [(int_ppc_altivec_stvebx VRRC:$rS, xoaddr:$dst)]>;
def STVEHX: XForm_8<31, 167, (ops VRRC:$rS, memrr:$dst),
                   "stvehx $rS, $dst", LdStGeneral,
                   [(int_ppc_altivec_stvehx VRRC:$rS, xoaddr:$dst)]>;
def STVEWX: XForm_8<31, 199, (ops VRRC:$rS, memrr:$dst),
                   "stvewx $rS, $dst", LdStGeneral,
                   [(int_ppc_altivec_stvewx VRRC:$rS, xoaddr:$dst)]>;
def STVX  : XForm_8<31, 231, (ops VRRC:$rS, memrr:$dst),
                   "stvx $rS, $dst", LdStGeneral,
                   [(store (v4f32 VRRC:$rS), xoaddr:$dst)]>;
}

let PPC970_Unit = 5 in {  // VALU Operations.
// VA-Form instructions.  3-input AltiVec ops.
def VMADDFP : VAForm_1<46, (ops VRRC:$vD, VRRC:$vA, VRRC:$vC, VRRC:$vB),
                       "vmaddfp $vD, $vA, $vC, $vB", VecFP,
                       [(set VRRC:$vD, (fadd (fmul VRRC:$vA, VRRC:$vC),
                                             VRRC:$vB))]>,
                       Requires<[FPContractions]>;
def VNMSUBFP: VAForm_1<47, (ops VRRC:$vD, VRRC:$vA, VRRC:$vC, VRRC:$vB),
                       "vnmsubfp $vD, $vA, $vC, $vB", VecFP,
                       [(set VRRC:$vD, (fneg (fsub (fmul VRRC:$vA, VRRC:$vC),
                                                   VRRC:$vB)))]>,
                       Requires<[FPContractions]>;

def VPERM   : VAForm_1a<43, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB, VRRC:$vC),
                        "vperm $vD, $vA, $vB, $vC", VecPerm,
                        [(set VRRC:$vD,
                             (PPCvperm (v4f32 VRRC:$vA), VRRC:$vB, VRRC:$vC))]>;
def VSLDOI  : VAForm_2<44, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB, u5imm:$SH),
                       "vsldoi $vD, $vA, $vB, $SH", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsldoi VRRC:$vA, VRRC:$vB,
                                                     imm:$SH))]>;
def VSEL   : VAForm_1a<42, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB, VRRC:$vC),
                       "vsel $vD, $vA, $vB, $vC", VecFP,
                       [(set VRRC:$vD,
                         (int_ppc_altivec_vsel VRRC:$vA, VRRC:$vB, VRRC:$vC))]>;

// VX-Form instructions.  AltiVec arithmetic ops.
def VADDCUW : VXForm_1<384, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vaddcuw $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vaddcuw VRRC:$vA, VRRC:$vB))]>;
def VADDFP : VXForm_1<10, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vaddfp $vD, $vA, $vB", VecFP,
                      [(set VRRC:$vD, (fadd VRRC:$vA, VRRC:$vB))]>;
                      
def VADDUBM : VXForm_1<0, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vaddubm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (add (v16i8 VRRC:$vA), VRRC:$vB))]>;
def VADDUHM : VXForm_1<64, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vadduhm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (add (v8i16 VRRC:$vA), VRRC:$vB))]>;
def VADDUWM : VXForm_1<128, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vadduwm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (add (v4i32 VRRC:$vA), VRRC:$vB))]>;
                      
def VADDSBS : VXForm_1<768, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vaddsbs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vaddsbs VRRC:$vA, VRRC:$vB))]>;
def VADDSHS : VXForm_1<832, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vaddshs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vaddshs VRRC:$vA, VRRC:$vB))]>;
def VADDSWS : VXForm_1<896, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vaddsws $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vaddsws VRRC:$vA, VRRC:$vB))]>;
                             
def VADDUBS : VXForm_1<512, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vaddubs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vaddubs VRRC:$vA, VRRC:$vB))]>;
def VADDUHS : VXForm_1<576, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vadduhs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vadduhs VRRC:$vA, VRRC:$vB))]>;
def VADDUWS : VXForm_1<640, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vadduws $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vadduws VRRC:$vA, VRRC:$vB))]>;
def VAND : VXForm_1<1028, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                    "vand $vD, $vA, $vB", VecFP,
                    [(set VRRC:$vD, (and (v4i32 VRRC:$vA), VRRC:$vB))]>;
def VANDC : VXForm_1<1092, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                     "vandc $vD, $vA, $vB", VecFP,
                     [(set VRRC:$vD, (and (v4i32 VRRC:$vA), (vnot VRRC:$vB)))]>;

def VCFSX  : VXForm_1<842, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vcfsx $vD, $vB, $UIMM", VecFP,
                      [(set VRRC:$vD,
                             (int_ppc_altivec_vcfsx VRRC:$vB, imm:$UIMM))]>;
def VCFUX  : VXForm_1<778, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vcfux $vD, $vB, $UIMM", VecFP,
                      [(set VRRC:$vD,
                             (int_ppc_altivec_vcfux VRRC:$vB, imm:$UIMM))]>;
def VCTSXS : VXForm_1<970, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vctsxs $vD, $vB, $UIMM", VecFP,
                      []>;
def VCTUXS : VXForm_1<906, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vctuxs $vD, $vB, $UIMM", VecFP,
                      []>;
def VEXPTEFP : VXForm_2<394, (ops VRRC:$vD, VRRC:$vB),
                        "vexptefp $vD, $vB", VecFP,
                        []>;
def VLOGEFP  : VXForm_2<458, (ops VRRC:$vD, VRRC:$vB),
                        "vlogefp $vD, $vB", VecFP,
                        []>;
def VMAXFP : VXForm_1<1034, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vmaxfp $vD, $vA, $vB", VecFP,
                      []>;
def VMINFP : VXForm_1<1098, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vminfp $vD, $vA, $vB", VecFP,
                      []>;
def VREFP  : VXForm_2<266, (ops VRRC:$vD, VRRC:$vB),
                      "vrefp $vD, $vB", VecFP,
                      []>;
def VRFIM  : VXForm_2<714, (ops VRRC:$vD, VRRC:$vB),
                      "vrfim $vD, $vB", VecFP,
                      []>;
def VRFIN  : VXForm_2<522, (ops VRRC:$vD, VRRC:$vB),
                      "vrfin $vD, $vB", VecFP,
                      []>;
def VRFIP  : VXForm_2<650, (ops VRRC:$vD, VRRC:$vB),
                      "vrfip $vD, $vB", VecFP,
                      []>;
def VRFIZ  : VXForm_2<586, (ops VRRC:$vD, VRRC:$vB),
                      "vrfiz $vD, $vB", VecFP,
                      []>;
def VRSQRTEFP : VXForm_2<330, (ops VRRC:$vD, VRRC:$vB),
                         "vrsqrtefp $vD, $vB", VecFP,
                         [(set VRRC:$vD,(int_ppc_altivec_vrsqrtefp VRRC:$vB))]>;
def VSUBCUW : VXForm_1<74, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubcuw $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubcuw VRRC:$vA, VRRC:$vB))]>;
def VSUBFP : VXForm_1<74, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vsubfp $vD, $vA, $vB", VecFP,
                      [(set VRRC:$vD, (fsub VRRC:$vA, VRRC:$vB))]>;
                  
def VSUBUBM : VXForm_1<1024, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vsububm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (sub (v16i8 VRRC:$vA), VRRC:$vB))]>;
def VSUBUHM : VXForm_1<1088, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vsubuhm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (sub (v8i16 VRRC:$vA), VRRC:$vB))]>;
def VSUBUWM : VXForm_1<1152, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vsubuwm $vD, $vA, $vB", VecGeneral,
                      [(set VRRC:$vD, (sub (v4i32 VRRC:$vA), VRRC:$vB))]>;
                      
def VSUBSBS : VXForm_1<1792, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubsbs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubsbs VRRC:$vA, VRRC:$vB))]>;
def VSUBSHS : VXForm_1<1856, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubshs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubshs VRRC:$vA, VRRC:$vB))]>;
def VSUBSWS : VXForm_1<1920, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubsws $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubsws VRRC:$vA, VRRC:$vB))]>;
                             
def VSUBUBS : VXForm_1<1536, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsububs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsububs VRRC:$vA, VRRC:$vB))]>;
def VSUBUHS : VXForm_1<1600, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubuhs $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubuhs VRRC:$vA, VRRC:$vB))]>;
def VSUBUWS : VXForm_1<1664, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                       "vsubuws $vD, $vA, $vB", VecFP,
                       [(set VRRC:$vD,
                             (int_ppc_altivec_vsubuws VRRC:$vA, VRRC:$vB))]>;
                      
def VNOR : VXForm_1<1284, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                    "vnor $vD, $vA, $vB", VecFP,
                    [(set VRRC:$vD, (vnot (or (v4i32 VRRC:$vA), VRRC:$vB)))]>;
def VOR : VXForm_1<1156, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vor $vD, $vA, $vB", VecFP,
                      [(set VRRC:$vD, (or (v4i32 VRRC:$vA), VRRC:$vB))]>;
def VXOR : VXForm_1<1220, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                      "vxor $vD, $vA, $vB", VecFP,
                      [(set VRRC:$vD, (xor (v4i32 VRRC:$vA), VRRC:$vB))]>;

def VSPLTB : VXForm_1<524, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vspltb $vD, $vB, $UIMM", VecPerm,
                      []>;
def VSPLTH : VXForm_1<588, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vsplth $vD, $vB, $UIMM", VecPerm,
                      []>;
def VSPLTW : VXForm_1<652, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
                      "vspltw $vD, $vB, $UIMM", VecPerm,
                      [(set VRRC:$vD, (vector_shuffle (v4f32 VRRC:$vB), (undef),
                                      VSPLT_shuffle_mask:$UIMM))]>;

def VSPLTISB : VXForm_3<780, (ops VRRC:$vD, s5imm:$SIMM),
                       "vspltisb $vD, $SIMM", VecPerm,
                       [(set VRRC:$vD, (v4f32 vecspltisb:$SIMM))]>;
def VSPLTISH : VXForm_3<844, (ops VRRC:$vD, s5imm:$SIMM),
                       "vspltish $vD, $SIMM", VecPerm,
                       [(set VRRC:$vD, (v4f32 vecspltish:$SIMM))]>;
def VSPLTISW : VXForm_3<908, (ops VRRC:$vD, s5imm:$SIMM),
                       "vspltisw $vD, $SIMM", VecPerm,
                       [(set VRRC:$vD, (v4f32 vecspltisw:$SIMM))]>;


// Altivec Comparisons.

// f32 element comparisons.
def VCMPBFP   : VXRForm_1<966, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                          "vcmpbfp $vD, $vA, $vB", VecFPCompare,
                          [(set VRRC:$vD, 
                                (int_ppc_altivec_vcmpbfp VRRC:$vA, VRRC:$vB))]>;
def VCMPBFPo  : VXRForm_1<966, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                          "vcmpbfp. $vD, $vA, $vB", VecFPCompare,
                          [(set VRRC:$vD, (v4f32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 966)))]>, isVDOT;
def VCMPEQFP  : VXRForm_1<198, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpeqfp $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpeqfp VRRC:$vA, VRRC:$vB))]>;
def VCMPEQFPo : VXRForm_1<198, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpeqfp. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4f32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 198)))]>, isVDOT;
def VCMPGEFP  : VXRForm_1<454, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgefp $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgefp VRRC:$vA, VRRC:$vB))]>;
def VCMPGEFPo : VXRForm_1<454, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgefp. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4f32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 454)))]>, isVDOT;
def VCMPGTFP  : VXRForm_1<710, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtfp $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtfp VRRC:$vA, VRRC:$vB))]>;
def VCMPGTFPo : VXRForm_1<710, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtfp. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4f32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 710)))]>, isVDOT;

// i8 element comparisons.
def VCMPEQUB  : VXRForm_1<6, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequb $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpequb VRRC:$vA, VRRC:$vB))]>;
def VCMPEQUBo : VXRForm_1<6, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequb. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v16i8
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 6)))]>, isVDOT;
def VCMPGTSB  : VXRForm_1<774, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsb $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtsb VRRC:$vA, VRRC:$vB))]>;
def VCMPGTSBo : VXRForm_1<774, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsb. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v16i8
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 774)))]>, isVDOT;
def VCMPGTUB  : VXRForm_1<518, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtub $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtub VRRC:$vA, VRRC:$vB))]>;
def VCMPGTUBo : VXRForm_1<518, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtub. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v16i8 
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 518)))]>, isVDOT;

// i16 element comparisons.
def VCMPEQUH  : VXRForm_1<70, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequh $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpequh VRRC:$vA, VRRC:$vB))]>;
def VCMPEQUHo : VXRForm_1<70, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequh. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v8i16 
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 70)))]>, isVDOT;
def VCMPGTSH  : VXRForm_1<838, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsh $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtsh VRRC:$vA, VRRC:$vB))]>;
def VCMPGTSHo : VXRForm_1<838, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsh. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v8i16 
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 838)))]>, isVDOT;
def VCMPGTUH  : VXRForm_1<582, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtuh $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtuh VRRC:$vA, VRRC:$vB))]>;
def VCMPGTUHo : VXRForm_1<582, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtuh. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v8i16 
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 582)))]>, isVDOT;

// i32 element comparisons.
def VCMPEQUW  : VXRForm_1<134, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequw $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpequw VRRC:$vA, VRRC:$vB))]>;
def VCMPEQUWo : VXRForm_1<134, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpequw. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4i32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 134)))]>, isVDOT;
def VCMPGTSW  : VXRForm_1<902, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsw $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtsw VRRC:$vA, VRRC:$vB))]>;
def VCMPGTSWo : VXRForm_1<902, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtsw. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4i32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 902)))]>, isVDOT;
def VCMPGTUW  : VXRForm_1<646, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtuw $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, 
                               (int_ppc_altivec_vcmpgtuw VRRC:$vA, VRRC:$vB))]>;
def VCMPGTUWo : VXRForm_1<646, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
                         "vcmpgtuw. $vD, $vA, $vB", VecFPCompare,
                         [(set VRRC:$vD, (v4i32
                                (PPCvcmp_o VRRC:$vA, VRRC:$vB, 646)))]>, isVDOT;
                      
def V_SET0 : VXForm_setzero<1220, (ops VRRC:$vD),
                      "vxor $vD, $vD, $vD", VecFP,
                      [(set VRRC:$vD, (v4f32 immAllZerosV))]>;
}

//===----------------------------------------------------------------------===//
// Additional Altivec Patterns
//

// Undef/Zero.
def : Pat<(v16i8 (undef)), (v16i8 (IMPLICIT_DEF_VRRC))>;
def : Pat<(v8i16 (undef)), (v8i16 (IMPLICIT_DEF_VRRC))>;
def : Pat<(v4i32 (undef)), (v4i32 (IMPLICIT_DEF_VRRC))>;
def : Pat<(v16i8 immAllZerosV), (v16i8 (V_SET0))>;
def : Pat<(v8i16 immAllZerosV), (v8i16 (V_SET0))>;
def : Pat<(v4i32 immAllZerosV), (v4i32 (V_SET0))>;

// Loads.
def : Pat<(v16i8 (load xoaddr:$src)), (v16i8 (LVX xoaddr:$src))>;
def : Pat<(v8i16 (load xoaddr:$src)), (v8i16 (LVX xoaddr:$src))>;
def : Pat<(v4i32 (load xoaddr:$src)), (v4i32 (LVX xoaddr:$src))>;

// Stores.
def : Pat<(store (v16i8 VRRC:$rS), xoaddr:$dst),
          (STVX (v16i8 VRRC:$rS), xoaddr:$dst)>;
def : Pat<(store (v8i16 VRRC:$rS), xoaddr:$dst),
          (STVX (v8i16 VRRC:$rS), xoaddr:$dst)>;
def : Pat<(store (v4i32 VRRC:$rS), xoaddr:$dst),
          (STVX (v4i32 VRRC:$rS), xoaddr:$dst)>;

// Bit conversions.
def : Pat<(v16i8 (bitconvert (v8i16 VRRC:$src))), (v16i8 VRRC:$src)>;
def : Pat<(v16i8 (bitconvert (v4i32 VRRC:$src))), (v16i8 VRRC:$src)>;
def : Pat<(v16i8 (bitconvert (v4f32 VRRC:$src))), (v16i8 VRRC:$src)>;

def : Pat<(v8i16 (bitconvert (v16i8 VRRC:$src))), (v8i16 VRRC:$src)>;
def : Pat<(v8i16 (bitconvert (v4i32 VRRC:$src))), (v8i16 VRRC:$src)>;
def : Pat<(v8i16 (bitconvert (v4f32 VRRC:$src))), (v8i16 VRRC:$src)>;

def : Pat<(v4i32 (bitconvert (v16i8 VRRC:$src))), (v4i32 VRRC:$src)>;
def : Pat<(v4i32 (bitconvert (v8i16 VRRC:$src))), (v4i32 VRRC:$src)>;
def : Pat<(v4i32 (bitconvert (v4f32 VRRC:$src))), (v4i32 VRRC:$src)>;

def : Pat<(v4f32 (bitconvert (v16i8 VRRC:$src))), (v4f32 VRRC:$src)>;
def : Pat<(v4f32 (bitconvert (v8i16 VRRC:$src))), (v4f32 VRRC:$src)>;
def : Pat<(v4f32 (bitconvert (v4i32 VRRC:$src))), (v4f32 VRRC:$src)>;

// Immediate vector formation with vsplti*.
def : Pat<(v16i8 vecspltisb:$invec), (v16i8 (VSPLTISB vecspltisb:$invec))>;
def : Pat<(v16i8 vecspltish:$invec), (v16i8 (VSPLTISH vecspltish:$invec))>;
def : Pat<(v16i8 vecspltisw:$invec), (v16i8 (VSPLTISW vecspltisw:$invec))>;

def : Pat<(v8i16 vecspltisb:$invec), (v8i16 (VSPLTISB vecspltisb:$invec))>;
def : Pat<(v8i16 vecspltish:$invec), (v8i16 (VSPLTISH vecspltish:$invec))>;
def : Pat<(v8i16 vecspltisw:$invec), (v8i16 (VSPLTISW vecspltisw:$invec))>;

def : Pat<(v4i32 vecspltisb:$invec), (v4i32 (VSPLTISB vecspltisb:$invec))>;
def : Pat<(v4i32 vecspltish:$invec), (v4i32 (VSPLTISH vecspltish:$invec))>;
def : Pat<(v4i32 vecspltisw:$invec), (v4i32 (VSPLTISW vecspltisw:$invec))>;

// Logical Operations
def : Pat<(v16i8 (and VRRC:$A, VRRC:$B)), (v16i8 (VAND VRRC:$A, VRRC:$B))>;
def : Pat<(v8i16 (and VRRC:$A, VRRC:$B)), (v8i16 (VAND VRRC:$A, VRRC:$B))>;
def : Pat<(v16i8 (or  VRRC:$A, VRRC:$B)), (v16i8 (VOR  VRRC:$A, VRRC:$B))>;
def : Pat<(v8i16 (or  VRRC:$A, VRRC:$B)), (v8i16 (VOR  VRRC:$A, VRRC:$B))>;
def : Pat<(v16i8 (xor VRRC:$A, VRRC:$B)), (v16i8 (VXOR VRRC:$A, VRRC:$B))>;
def : Pat<(v8i16 (xor VRRC:$A, VRRC:$B)), (v8i16 (VXOR VRRC:$A, VRRC:$B))>;
def : Pat<(v16i8 (vnot (or VRRC:$A, VRRC:$B))),(v16i8 (VNOR VRRC:$A, VRRC:$B))>;
def : Pat<(v8i16 (vnot (or VRRC:$A, VRRC:$B))),(v8i16 (VNOR VRRC:$A, VRRC:$B))>;
def : Pat<(v16i8 (and VRRC:$A, (vnot VRRC:$B))),
          (v16i8 (VANDC VRRC:$A, VRRC:$B))>;
def : Pat<(v8i16 (and VRRC:$A, (vnot VRRC:$B))),
          (v8i16 (VANDC VRRC:$A, VRRC:$B))>;

def : Pat<(fmul VRRC:$vA, VRRC:$vB),
          (VMADDFP VRRC:$vA, VRRC:$vB, (V_SET0))>; 

// Fused multiply add and multiply sub for packed float.  These are represented
// separately from the real instructions above, for operations that must have
// the additional precision, such as Newton-Rhapson (used by divide, sqrt)
def : Pat<(PPCvmaddfp VRRC:$A, VRRC:$B, VRRC:$C),
          (VMADDFP VRRC:$A, VRRC:$B, VRRC:$C)>;
def : Pat<(PPCvnmsubfp VRRC:$A, VRRC:$B, VRRC:$C),
          (VNMSUBFP VRRC:$A, VRRC:$B, VRRC:$C)>;

def : Pat<(int_ppc_altivec_vmaddfp VRRC:$A, VRRC:$B, VRRC:$C),
          (VMADDFP VRRC:$A, VRRC:$B, VRRC:$C)>;
def : Pat<(int_ppc_altivec_vnmsubfp VRRC:$A, VRRC:$B, VRRC:$C),
          (VNMSUBFP VRRC:$A, VRRC:$B, VRRC:$C)>;

def : Pat<(vector_shuffle (v4i32 VRRC:$vB), (undef), VSPLT_shuffle_mask:$UIMM),
          (v4i32 (VSPLTW VSPLT_shuffle_mask:$UIMM, VRRC:$vB))>;

def : Pat<(PPCvperm (v4i32 VRRC:$vA), VRRC:$vB, VRRC:$vC),
          (v4i32 (VPERM VRRC:$vA, VRRC:$vB, VRRC:$vC))>;