contrib/llvm/lib/Target/X86/X86InstrFMA3Info.cpp

   1 //===-- X86InstrFMA3Info.cpp - X86 FMA3 Instruction Information -----------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the implementation of the classes providing information
  11 // about existing X86 FMA3 opcodes, classifying and grouping them.
  12 //
  13 //===----------------------------------------------------------------------===//
  14
  15 #include "X86InstrFMA3Info.h"
  16 #include "X86InstrInfo.h"
  17 #include "llvm/Support/ManagedStatic.h"
  18 #include "llvm/Support/Threading.h"
  19 using namespace llvm;
  20
  21 /// This flag is used in the method llvm::call_once() used below to make the
  22 /// initialization of the map 'OpcodeToGroup' thread safe.
  23 LLVM_DEFINE_ONCE_FLAG(InitGroupsOnceFlag);
  24
  25 static ManagedStatic<X86InstrFMA3Info> X86InstrFMA3InfoObj;
  26 X86InstrFMA3Info *X86InstrFMA3Info::getX86InstrFMA3Info() {
  27   return &*X86InstrFMA3InfoObj;
  28 }
  29
  30 void X86InstrFMA3Info::initRMGroup(const uint16_t *RegOpcodes,
  31                                    const uint16_t *MemOpcodes, unsigned Attr) {
  32   // Create a new instance of this class that would hold a group of FMA opcodes.
  33   X86InstrFMA3Group *G = new X86InstrFMA3Group(RegOpcodes, MemOpcodes, Attr);
  34
  35   // Add the references from indvidual opcodes to the group holding them.
  36   assert((!OpcodeToGroup[RegOpcodes[0]] && !OpcodeToGroup[RegOpcodes[1]] &&
  37           !OpcodeToGroup[RegOpcodes[2]] && !OpcodeToGroup[MemOpcodes[0]] &&
  38           !OpcodeToGroup[MemOpcodes[1]] && !OpcodeToGroup[MemOpcodes[2]]) &&
  39          "Duplication or rewrite of elements in OpcodeToGroup.");
  40   OpcodeToGroup[RegOpcodes[0]] = G;
  41   OpcodeToGroup[RegOpcodes[1]] = G;
  42   OpcodeToGroup[RegOpcodes[2]] = G;
  43   OpcodeToGroup[MemOpcodes[0]] = G;
  44   OpcodeToGroup[MemOpcodes[1]] = G;
  45   OpcodeToGroup[MemOpcodes[2]] = G;
  46 }
  47
  48 void X86InstrFMA3Info::initRGroup(const uint16_t *RegOpcodes, unsigned Attr) {
  49   // Create a new instance of this class that would hold a group of FMA opcodes.
  50   X86InstrFMA3Group *G = new X86InstrFMA3Group(RegOpcodes, nullptr, Attr);
  51
  52   // Add the references from indvidual opcodes to the group holding them.
  53   assert((!OpcodeToGroup[RegOpcodes[0]] && !OpcodeToGroup[RegOpcodes[1]] &&
  54           !OpcodeToGroup[RegOpcodes[2]]) &&
  55          "Duplication or rewrite of elements in OpcodeToGroup.");
  56   OpcodeToGroup[RegOpcodes[0]] = G;
  57   OpcodeToGroup[RegOpcodes[1]] = G;
  58   OpcodeToGroup[RegOpcodes[2]] = G;
  59 }
  60
  61 void X86InstrFMA3Info::initMGroup(const uint16_t *MemOpcodes, unsigned Attr) {
  62   // Create a new instance of this class that would hold a group of FMA opcodes.
  63   X86InstrFMA3Group *G = new X86InstrFMA3Group(nullptr, MemOpcodes, Attr);
  64
  65   // Add the references from indvidual opcodes to the group holding them.
  66   assert((!OpcodeToGroup[MemOpcodes[0]] && !OpcodeToGroup[MemOpcodes[1]] &&
  67           !OpcodeToGroup[MemOpcodes[2]]) &&
  68          "Duplication or rewrite of elements in OpcodeToGroup.");
  69   OpcodeToGroup[MemOpcodes[0]] = G;
  70   OpcodeToGroup[MemOpcodes[1]] = G;
  71   OpcodeToGroup[MemOpcodes[2]] = G;
  72 }
  73
  74 #define FMA3RM(R132, R213, R231, M132, M213, M231)                             \
  75   static const uint16_t Reg##R132[3] = {X86::R132, X86::R213, X86::R231};      \
  76   static const uint16_t Mem##R132[3] = {X86::M132, X86::M213, X86::M231};      \
  77   initRMGroup(Reg##R132, Mem##R132);
  78
  79 #define FMA3RMA(R132, R213, R231, M132, M213, M231, Attrs)                     \
  80   static const uint16_t Reg##R132[3] = {X86::R132, X86::R213, X86::R231};      \
  81   static const uint16_t Mem##R132[3] = {X86::M132, X86::M213, X86::M231};      \
  82   initRMGroup(Reg##R132, Mem##R132, (Attrs));
  83
  84 #define FMA3R(R132, R213, R231)                                                \
  85   static const uint16_t Reg##R132[3] = {X86::R132, X86::R213, X86::R231};      \
  86   initRGroup(Reg##R132);
  87
  88 #define FMA3RA(R132, R213, R231, Attrs)                                        \
  89   static const uint16_t Reg##R132[3] = {X86::R132, X86::R213, X86::R231};      \
  90   initRGroup(Reg##R132, (Attrs));
  91
  92 #define FMA3M(M132, M213, M231)                                                \
  93   static const uint16_t Mem##M132[3] = {X86::M132, X86::M213, X86::M231};      \
  94   initMGroup(Mem##M132);
  95
  96 #define FMA3MA(M132, M213, M231, Attrs)                                        \
  97   static const uint16_t Mem##M132[3] = {X86::M132, X86::M213, X86::M231};      \
  98   initMGroup(Mem##M132, (Attrs));
  99
 100 #define FMA3_AVX2_VECTOR_GROUP(Name)                                           \
 101   FMA3RM(Name##132PSr, Name##213PSr, Name##231PSr,                             \
 102          Name##132PSm, Name##213PSm, Name##231PSm);                            \
 103   FMA3RM(Name##132PDr, Name##213PDr, Name##231PDr,                             \
 104          Name##132PDm, Name##213PDm, Name##231PDm);                            \
 105   FMA3RM(Name##132PSYr, Name##213PSYr, Name##231PSYr,                          \
 106          Name##132PSYm, Name##213PSYm, Name##231PSYm);                         \
 107   FMA3RM(Name##132PDYr, Name##213PDYr, Name##231PDYr,                          \
 108          Name##132PDYm, Name##213PDYm, Name##231PDYm);
 109
 110 #define FMA3_AVX2_SCALAR_GROUP(Name)                                           \
 111   FMA3RM(Name##132SSr, Name##213SSr, Name##231SSr,                             \
 112          Name##132SSm, Name##213SSm, Name##231SSm);                            \
 113   FMA3RM(Name##132SDr, Name##213SDr, Name##231SDr,                             \
 114          Name##132SDm, Name##213SDm, Name##231SDm);                            \
 115   FMA3RMA(Name##132SSr_Int, Name##213SSr_Int, Name##231SSr_Int,                \
 116           Name##132SSm_Int, Name##213SSm_Int, Name##231SSm_Int,                \
 117           X86InstrFMA3Group::X86FMA3Intrinsic);                                \
 118   FMA3RMA(Name##132SDr_Int, Name##213SDr_Int, Name##231SDr_Int,                \
 119           Name##132SDm_Int, Name##213SDm_Int, Name##231SDm_Int,                \
 120           X86InstrFMA3Group::X86FMA3Intrinsic);
 121
 122 #define FMA3_AVX2_FULL_GROUP(Name)                                             \
 123   FMA3_AVX2_VECTOR_GROUP(Name);                                                \
 124   FMA3_AVX2_SCALAR_GROUP(Name);
 125
 126 #define FMA3_AVX512_VECTOR_GROUP(Name)                                         \
 127   FMA3RM(Name##132PSZ128r, Name##213PSZ128r, Name##231PSZ128r,                 \
 128          Name##132PSZ128m, Name##213PSZ128m, Name##231PSZ128m);                \
 129   FMA3RM(Name##132PDZ128r, Name##213PDZ128r, Name##231PDZ128r,                 \
 130          Name##132PDZ128m, Name##213PDZ128m, Name##231PDZ128m);                \
 131   FMA3RM(Name##132PSZ256r, Name##213PSZ256r, Name##231PSZ256r,                 \
 132          Name##132PSZ256m, Name##213PSZ256m, Name##231PSZ256m);                \
 133   FMA3RM(Name##132PDZ256r, Name##213PDZ256r, Name##231PDZ256r,                 \
 134          Name##132PDZ256m, Name##213PDZ256m, Name##231PDZ256m);                \
 135   FMA3RM(Name##132PSZr,    Name##213PSZr,    Name##231PSZr,                    \
 136          Name##132PSZm,    Name##213PSZm,    Name##231PSZm);                   \
 137   FMA3RM(Name##132PDZr,    Name##213PDZr,    Name##231PDZr,                    \
 138          Name##132PDZm,    Name##213PDZm,    Name##231PDZm);                   \
 139   FMA3RMA(Name##132PSZ128rk, Name##213PSZ128rk, Name##231PSZ128rk,             \
 140           Name##132PSZ128mk, Name##213PSZ128mk, Name##231PSZ128mk,             \
 141           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 142   FMA3RMA(Name##132PDZ128rk, Name##213PDZ128rk, Name##231PDZ128rk,             \
 143           Name##132PDZ128mk, Name##213PDZ128mk, Name##231PDZ128mk,             \
 144           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 145   FMA3RMA(Name##132PSZ256rk, Name##213PSZ256rk, Name##231PSZ256rk,             \
 146           Name##132PSZ256mk, Name##213PSZ256mk, Name##231PSZ256mk,             \
 147           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 148   FMA3RMA(Name##132PDZ256rk, Name##213PDZ256rk, Name##231PDZ256rk,             \
 149           Name##132PDZ256mk, Name##213PDZ256mk, Name##231PDZ256mk,             \
 150           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 151   FMA3RMA(Name##132PSZrk,    Name##213PSZrk,    Name##231PSZrk,                \
 152           Name##132PSZmk,    Name##213PSZmk,    Name##231PSZmk,                \
 153           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 154   FMA3RMA(Name##132PDZrk,    Name##213PDZrk,    Name##231PDZrk,                \
 155           Name##132PDZmk,    Name##213PDZmk,    Name##231PDZmk,                \
 156           X86InstrFMA3Group::X86FMA3KMergeMasked);                             \
 157   FMA3RMA(Name##132PSZ128rkz, Name##213PSZ128rkz, Name##231PSZ128rkz,          \
 158           Name##132PSZ128mkz, Name##213PSZ128mkz, Name##231PSZ128mkz,          \
 159           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 160   FMA3RMA(Name##132PDZ128rkz, Name##213PDZ128rkz, Name##231PDZ128rkz,          \
 161           Name##132PDZ128mkz, Name##213PDZ128mkz, Name##231PDZ128mkz,          \
 162           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 163   FMA3RMA(Name##132PSZ256rkz, Name##213PSZ256rkz, Name##231PSZ256rkz,          \
 164           Name##132PSZ256mkz, Name##213PSZ256mkz, Name##231PSZ256mkz,          \
 165           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 166   FMA3RMA(Name##132PDZ256rkz, Name##213PDZ256rkz, Name##231PDZ256rkz,          \
 167           Name##132PDZ256mkz, Name##213PDZ256mkz, Name##231PDZ256mkz,          \
 168           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 169   FMA3RMA(Name##132PSZrkz,    Name##213PSZrkz,    Name##231PSZrkz,             \
 170           Name##132PSZmkz,    Name##213PSZmkz,    Name##231PSZmkz,             \
 171           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 172   FMA3RMA(Name##132PDZrkz,    Name##213PDZrkz,    Name##231PDZrkz,             \
 173           Name##132PDZmkz,    Name##213PDZmkz,    Name##231PDZmkz,             \
 174           X86InstrFMA3Group::X86FMA3KZeroMasked);                              \
 175   FMA3R(Name##132PSZrb, Name##213PSZrb, Name##231PSZrb);                       \
 176   FMA3R(Name##132PDZrb, Name##213PDZrb, Name##231PDZrb);                       \
 177   FMA3RA(Name##132PSZrbk, Name##213PSZrbk, Name##231PSZrbk,                    \
 178          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 179   FMA3RA(Name##132PDZrbk, Name##213PDZrbk, Name##231PDZrbk,                    \
 180          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 181   FMA3RA(Name##132PSZrbkz, Name##213PSZrbkz, Name##231PSZrbkz,                 \
 182          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 183   FMA3RA(Name##132PDZrbkz, Name##213PDZrbkz, Name##231PDZrbkz,                 \
 184          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 185   FMA3M(Name##132PSZ128mb, Name##213PSZ128mb, Name##231PSZ128mb);              \
 186   FMA3M(Name##132PDZ128mb, Name##213PDZ128mb, Name##231PDZ128mb);              \
 187   FMA3M(Name##132PSZ256mb, Name##213PSZ256mb, Name##231PSZ256mb);              \
 188   FMA3M(Name##132PDZ256mb, Name##213PDZ256mb, Name##231PDZ256mb);              \
 189   FMA3M(Name##132PSZmb, Name##213PSZmb, Name##231PSZmb);                       \
 190   FMA3M(Name##132PDZmb, Name##213PDZmb, Name##231PDZmb);                       \
 191   FMA3MA(Name##132PSZ128mbk, Name##213PSZ128mbk, Name##231PSZ128mbk,           \
 192          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 193   FMA3MA(Name##132PDZ128mbk, Name##213PDZ128mbk, Name##231PDZ128mbk,           \
 194          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 195   FMA3MA(Name##132PSZ256mbk, Name##213PSZ256mbk, Name##231PSZ256mbk,           \
 196          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 197   FMA3MA(Name##132PDZ256mbk, Name##213PDZ256mbk, Name##231PDZ256mbk,           \
 198          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 199   FMA3MA(Name##132PSZmbk,    Name##213PSZmbk,    Name##231PSZmbk,              \
 200          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 201   FMA3MA(Name##132PDZmbk,    Name##213PDZmbk,    Name##231PDZmbk,              \
 202          X86InstrFMA3Group::X86FMA3KMergeMasked);                              \
 203   FMA3MA(Name##132PSZ128mbkz, Name##213PSZ128mbkz, Name##231PSZ128mbkz,        \
 204          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 205   FMA3MA(Name##132PDZ128mbkz, Name##213PDZ128mbkz, Name##231PDZ128mbkz,        \
 206          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 207   FMA3MA(Name##132PSZ256mbkz, Name##213PSZ256mbkz, Name##231PSZ256mbkz,        \
 208          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 209   FMA3MA(Name##132PDZ256mbkz, Name##213PDZ256mbkz, Name##231PDZ256mbkz,        \
 210          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 211   FMA3MA(Name##132PSZmbkz, Name##213PSZmbkz, Name##231PSZmbkz,                 \
 212          X86InstrFMA3Group::X86FMA3KZeroMasked);                               \
 213   FMA3MA(Name##132PDZmbkz, Name##213PDZmbkz, Name##231PDZmbkz,                 \
 214          X86InstrFMA3Group::X86FMA3KZeroMasked);
 215
 216 #define FMA3_AVX512_SCALAR_GROUP(Name)                                         \
 217   FMA3RM(Name##132SSZr,      Name##213SSZr,     Name##231SSZr,                 \
 218          Name##132SSZm,      Name##213SSZm,     Name##231SSZm);                \
 219   FMA3RM(Name##132SDZr,      Name##213SDZr,     Name##231SDZr,                 \
 220          Name##132SDZm,      Name##213SDZm,     Name##231SDZm);                \
 221   FMA3RMA(Name##132SSZr_Int, Name##213SSZr_Int, Name##231SSZr_Int,             \
 222           Name##132SSZm_Int, Name##213SSZm_Int, Name##231SSZm_Int,             \
 223           X86InstrFMA3Group::X86FMA3Intrinsic);                                \
 224   FMA3RMA(Name##132SDZr_Int, Name##213SDZr_Int, Name##231SDZr_Int,             \
 225           Name##132SDZm_Int, Name##213SDZm_Int, Name##231SDZm_Int,             \
 226           X86InstrFMA3Group::X86FMA3Intrinsic);                                \
 227   FMA3RMA(Name##132SSZr_Intk, Name##213SSZr_Intk, Name##231SSZr_Intk,          \
 228           Name##132SSZm_Intk, Name##213SSZm_Intk, Name##231SSZm_Intk,          \
 229           X86InstrFMA3Group::X86FMA3Intrinsic |                                \
 230               X86InstrFMA3Group::X86FMA3KMergeMasked);                         \
 231   FMA3RMA(Name##132SDZr_Intk, Name##213SDZr_Intk, Name##231SDZr_Intk,          \
 232           Name##132SDZm_Intk, Name##213SDZm_Intk, Name##231SDZm_Intk,          \
 233           X86InstrFMA3Group::X86FMA3Intrinsic |                                \
 234               X86InstrFMA3Group::X86FMA3KMergeMasked);                         \
 235   FMA3RMA(Name##132SSZr_Intkz, Name##213SSZr_Intkz, Name##231SSZr_Intkz,       \
 236           Name##132SSZm_Intkz, Name##213SSZm_Intkz, Name##231SSZm_Intkz,       \
 237           X86InstrFMA3Group::X86FMA3Intrinsic |                                \
 238               X86InstrFMA3Group::X86FMA3KZeroMasked);                          \
 239   FMA3RMA(Name##132SDZr_Intkz, Name##213SDZr_Intkz, Name##231SDZr_Intkz,       \
 240           Name##132SDZm_Intkz, Name##213SDZm_Intkz, Name##231SDZm_Intkz,       \
 241           X86InstrFMA3Group::X86FMA3Intrinsic |                                \
 242               X86InstrFMA3Group::X86FMA3KZeroMasked);                          \
 243   FMA3RA(Name##132SSZrb_Int, Name##213SSZrb_Int, Name##231SSZrb_Int,           \
 244          X86InstrFMA3Group::X86FMA3Intrinsic);                                 \
 245   FMA3RA(Name##132SDZrb_Int, Name##213SDZrb_Int, Name##231SDZrb_Int,           \
 246          X86InstrFMA3Group::X86FMA3Intrinsic);                                 \
 247   FMA3RA(Name##132SSZrb_Intk, Name##213SSZrb_Intk, Name##231SSZrb_Intk,        \
 248          X86InstrFMA3Group::X86FMA3Intrinsic |                                 \
 249              X86InstrFMA3Group::X86FMA3KMergeMasked);                          \
 250   FMA3RA(Name##132SDZrb_Intk, Name##213SDZrb_Intk, Name##231SDZrb_Intk,        \
 251          X86InstrFMA3Group::X86FMA3Intrinsic |                                 \
 252              X86InstrFMA3Group::X86FMA3KMergeMasked);                          \
 253   FMA3RA(Name##132SSZrb_Intkz, Name##213SSZrb_Intkz, Name##231SSZrb_Intkz,     \
 254          X86InstrFMA3Group::X86FMA3Intrinsic |                                 \
 255              X86InstrFMA3Group::X86FMA3KZeroMasked);                           \
 256   FMA3RA(Name##132SDZrb_Intkz, Name##213SDZrb_Intkz, Name##231SDZrb_Intkz,     \
 257          X86InstrFMA3Group::X86FMA3Intrinsic |                                 \
 258              X86InstrFMA3Group::X86FMA3KZeroMasked);
 259
 260 #define FMA3_AVX512_FULL_GROUP(Name)                                           \
 261   FMA3_AVX512_VECTOR_GROUP(Name);                                              \
 262   FMA3_AVX512_SCALAR_GROUP(Name);
 263
 264 void X86InstrFMA3Info::initGroupsOnceImpl() {
 265   FMA3_AVX2_FULL_GROUP(VFMADD);
 266   FMA3_AVX2_FULL_GROUP(VFMSUB);
 267   FMA3_AVX2_FULL_GROUP(VFNMADD);
 268   FMA3_AVX2_FULL_GROUP(VFNMSUB);
 269
 270   FMA3_AVX2_VECTOR_GROUP(VFMADDSUB);
 271   FMA3_AVX2_VECTOR_GROUP(VFMSUBADD);
 272
 273   FMA3_AVX512_FULL_GROUP(VFMADD);
 274   FMA3_AVX512_FULL_GROUP(VFMSUB);
 275   FMA3_AVX512_FULL_GROUP(VFNMADD);
 276   FMA3_AVX512_FULL_GROUP(VFNMSUB);
 277
 278   FMA3_AVX512_VECTOR_GROUP(VFMADDSUB);
 279   FMA3_AVX512_VECTOR_GROUP(VFMSUBADD);
 280 }
 281
 282 void X86InstrFMA3Info::initGroupsOnce() {
 283   llvm::call_once(InitGroupsOnceFlag,
 284                   []() { getX86InstrFMA3Info()->initGroupsOnceImpl(); });
 285 }