LCOV - code coverage report
Current view: top level - gcc - expmed.h (source / functions) Hit Total Coverage
Test: gcc.info Lines: 121 125 96.8 %
Date: 2020-04-04 11:58:09 Functions: 5 5 100.0 %
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           Branch data     Line data    Source code
       1                 :            : /* Target-dependent costs for expmed.c.
       2                 :            :    Copyright (C) 1987-2020 Free Software Foundation, Inc.
       3                 :            : 
       4                 :            : This file is part of GCC.
       5                 :            : 
       6                 :            : GCC is free software; you can redistribute it and/or modify it under
       7                 :            : the terms of the GNU General Public License as published by the Free
       8                 :            : Software Foundation; either version 3, or (at your option) any later
       9                 :            : version.
      10                 :            : 
      11                 :            : GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      12                 :            : WARRANTY; without even the implied warranty of MERCHANTABILITY or
      13                 :            : FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      14                 :            : for more details.
      15                 :            : 
      16                 :            : You should have received a copy of the GNU General Public License
      17                 :            : along with GCC; see the file COPYING3.  If not see
      18                 :            : <http://www.gnu.org/licenses/>.  */
      19                 :            : 
      20                 :            : #ifndef EXPMED_H
      21                 :            : #define EXPMED_H 1
      22                 :            : 
      23                 :            : #include "insn-codes.h"
      24                 :            : 
      25                 :            : enum alg_code {
      26                 :            :   alg_unknown,
      27                 :            :   alg_zero,
      28                 :            :   alg_m, alg_shift,
      29                 :            :   alg_add_t_m2,
      30                 :            :   alg_sub_t_m2,
      31                 :            :   alg_add_factor,
      32                 :            :   alg_sub_factor,
      33                 :            :   alg_add_t2_m,
      34                 :            :   alg_sub_t2_m,
      35                 :            :   alg_impossible
      36                 :            : };
      37                 :            : 
      38                 :            : /* Indicates the type of fixup needed after a constant multiplication.
      39                 :            :    BASIC_VARIANT means no fixup is needed, NEGATE_VARIANT means that
      40                 :            :    the result should be negated, and ADD_VARIANT means that the
      41                 :            :    multiplicand should be added to the result.  */
      42                 :            : enum mult_variant {basic_variant, negate_variant, add_variant};
      43                 :            : 
      44                 :            : bool choose_mult_variant (machine_mode, HOST_WIDE_INT,
      45                 :            :                           struct algorithm *, enum mult_variant *, int);
      46                 :            : 
      47                 :            : /* This structure holds the "cost" of a multiply sequence.  The
      48                 :            :    "cost" field holds the total rtx_cost of every operator in the
      49                 :            :    synthetic multiplication sequence, hence cost(a op b) is defined
      50                 :            :    as rtx_cost(op) + cost(a) + cost(b), where cost(leaf) is zero.
      51                 :            :    The "latency" field holds the minimum possible latency of the
      52                 :            :    synthetic multiply, on a hypothetical infinitely parallel CPU.
      53                 :            :    This is the critical path, or the maximum height, of the expression
      54                 :            :    tree which is the sum of rtx_costs on the most expensive path from
      55                 :            :    any leaf to the root.  Hence latency(a op b) is defined as zero for
      56                 :            :    leaves and rtx_cost(op) + max(latency(a), latency(b)) otherwise.  */
      57                 :            : 
      58                 :            : struct mult_cost {
      59                 :            :   short cost;     /* Total rtx_cost of the multiplication sequence.  */
      60                 :            :   short latency;  /* The latency of the multiplication sequence.  */
      61                 :            : };
      62                 :            : 
      63                 :            : /* This macro is used to compare a pointer to a mult_cost against an
      64                 :            :    single integer "rtx_cost" value.  This is equivalent to the macro
      65                 :            :    CHEAPER_MULT_COST(X,Z) where Z = {Y,Y}.  */
      66                 :            : #define MULT_COST_LESS(X,Y) ((X)->cost < (Y)      \
      67                 :            :                              || ((X)->cost == (Y) && (X)->latency < (Y)))
      68                 :            : 
      69                 :            : /* This macro is used to compare two pointers to mult_costs against
      70                 :            :    each other.  The macro returns true if X is cheaper than Y.
      71                 :            :    Currently, the cheaper of two mult_costs is the one with the
      72                 :            :    lower "cost".  If "cost"s are tied, the lower latency is cheaper.  */
      73                 :            : #define CHEAPER_MULT_COST(X,Y)  ((X)->cost < (Y)->cost         \
      74                 :            :                                  || ((X)->cost == (Y)->cost       \
      75                 :            :                                      && (X)->latency < (Y)->latency))
      76                 :            : 
      77                 :            : /* This structure records a sequence of operations.
      78                 :            :    `ops' is the number of operations recorded.
      79                 :            :    `cost' is their total cost.
      80                 :            :    The operations are stored in `op' and the corresponding
      81                 :            :    logarithms of the integer coefficients in `log'.
      82                 :            : 
      83                 :            :    These are the operations:
      84                 :            :    alg_zero             total := 0;
      85                 :            :    alg_m                total := multiplicand;
      86                 :            :    alg_shift            total := total * coeff
      87                 :            :    alg_add_t_m2         total := total + multiplicand * coeff;
      88                 :            :    alg_sub_t_m2         total := total - multiplicand * coeff;
      89                 :            :    alg_add_factor       total := total * coeff + total;
      90                 :            :    alg_sub_factor       total := total * coeff - total;
      91                 :            :    alg_add_t2_m         total := total * coeff + multiplicand;
      92                 :            :    alg_sub_t2_m         total := total * coeff - multiplicand;
      93                 :            : 
      94                 :            :    The first operand must be either alg_zero or alg_m.  */
      95                 :            : 
      96                 :            : struct algorithm
      97                 :            : {
      98                 :            :   struct mult_cost cost;
      99                 :            :   short ops;
     100                 :            :   /* The size of the OP and LOG fields are not directly related to the
     101                 :            :      word size, but the worst-case algorithms will be if we have few
     102                 :            :      consecutive ones or zeros, i.e., a multiplicand like 10101010101...
     103                 :            :      In that case we will generate shift-by-2, add, shift-by-2, add,...,
     104                 :            :      in total wordsize operations.  */
     105                 :            :   enum alg_code op[MAX_BITS_PER_WORD];
     106                 :            :   char log[MAX_BITS_PER_WORD];
     107                 :            : };
     108                 :            : 
     109                 :            : /* The entry for our multiplication cache/hash table.  */
     110                 :            : struct alg_hash_entry {
     111                 :            :   /* The number we are multiplying by.  */
     112                 :            :   unsigned HOST_WIDE_INT t;
     113                 :            : 
     114                 :            :   /* The mode in which we are multiplying something by T.  */
     115                 :            :   machine_mode mode;
     116                 :            : 
     117                 :            :   /* The best multiplication algorithm for t.  */
     118                 :            :   enum alg_code alg;
     119                 :            : 
     120                 :            :   /* The cost of multiplication if ALG_CODE is not alg_impossible.
     121                 :            :      Otherwise, the cost within which multiplication by T is
     122                 :            :      impossible.  */
     123                 :            :   struct mult_cost cost;
     124                 :            : 
     125                 :            :   /* Optimized for speed? */
     126                 :            :   bool speed;
     127                 :            : };
     128                 :            : 
     129                 :            : /* The number of cache/hash entries.  */
     130                 :            : #if HOST_BITS_PER_WIDE_INT == 64
     131                 :            : #define NUM_ALG_HASH_ENTRIES 1031
     132                 :            : #else
     133                 :            : #define NUM_ALG_HASH_ENTRIES 307
     134                 :            : #endif
     135                 :            : 
     136                 :            : #define NUM_MODE_INT \
     137                 :            :   (MAX_MODE_INT - MIN_MODE_INT + 1)
     138                 :            : #define NUM_MODE_PARTIAL_INT \
     139                 :            :   (MIN_MODE_PARTIAL_INT == E_VOIDmode ? 0 \
     140                 :            :    : MAX_MODE_PARTIAL_INT - MIN_MODE_PARTIAL_INT + 1)
     141                 :            : #define NUM_MODE_VECTOR_INT \
     142                 :            :   (MIN_MODE_VECTOR_INT == E_VOIDmode ? 0 \
     143                 :            :    : MAX_MODE_VECTOR_INT - MIN_MODE_VECTOR_INT + 1)
     144                 :            : 
     145                 :            : #define NUM_MODE_IP_INT (NUM_MODE_INT + NUM_MODE_PARTIAL_INT)
     146                 :            : #define NUM_MODE_IPV_INT (NUM_MODE_IP_INT + NUM_MODE_VECTOR_INT)
     147                 :            : 
     148                 :            : struct expmed_op_cheap {
     149                 :            :   bool cheap[2][NUM_MODE_IPV_INT];
     150                 :            : };
     151                 :            : 
     152                 :            : struct expmed_op_costs {
     153                 :            :   int cost[2][NUM_MODE_IPV_INT];
     154                 :            : };
     155                 :            : 
     156                 :            : /* Target-dependent globals.  */
     157                 :            : struct target_expmed {
     158                 :            :   /* Each entry of ALG_HASH caches alg_code for some integer.  This is
     159                 :            :      actually a hash table.  If we have a collision, that the older
     160                 :            :      entry is kicked out.  */
     161                 :            :   struct alg_hash_entry x_alg_hash[NUM_ALG_HASH_ENTRIES];
     162                 :            : 
     163                 :            :   /* True if x_alg_hash might already have been used.  */
     164                 :            :   bool x_alg_hash_used_p;
     165                 :            : 
     166                 :            :   /* Nonzero means divides or modulus operations are relatively cheap for
     167                 :            :      powers of two, so don't use branches; emit the operation instead.
     168                 :            :      Usually, this will mean that the MD file will emit non-branch
     169                 :            :      sequences.  */
     170                 :            :   struct expmed_op_cheap x_sdiv_pow2_cheap;
     171                 :            :   struct expmed_op_cheap x_smod_pow2_cheap;
     172                 :            : 
     173                 :            :   /* Cost of various pieces of RTL.  Note that some of these are indexed by
     174                 :            :      shift count and some by mode.  */
     175                 :            :   int x_zero_cost[2];
     176                 :            :   struct expmed_op_costs x_add_cost;
     177                 :            :   struct expmed_op_costs x_neg_cost;
     178                 :            :   struct expmed_op_costs x_shift_cost[MAX_BITS_PER_WORD];
     179                 :            :   struct expmed_op_costs x_shiftadd_cost[MAX_BITS_PER_WORD];
     180                 :            :   struct expmed_op_costs x_shiftsub0_cost[MAX_BITS_PER_WORD];
     181                 :            :   struct expmed_op_costs x_shiftsub1_cost[MAX_BITS_PER_WORD];
     182                 :            :   struct expmed_op_costs x_mul_cost;
     183                 :            :   struct expmed_op_costs x_sdiv_cost;
     184                 :            :   struct expmed_op_costs x_udiv_cost;
     185                 :            :   int x_mul_widen_cost[2][NUM_MODE_INT];
     186                 :            :   int x_mul_highpart_cost[2][NUM_MODE_INT];
     187                 :            : 
     188                 :            :   /* Conversion costs are only defined between two scalar integer modes
     189                 :            :      of different sizes.  The first machine mode is the destination mode,
     190                 :            :      and the second is the source mode.  */
     191                 :            :   int x_convert_cost[2][NUM_MODE_IP_INT][NUM_MODE_IP_INT];
     192                 :            : };
     193                 :            : 
     194                 :            : extern struct target_expmed default_target_expmed;
     195                 :            : #if SWITCHABLE_TARGET
     196                 :            : extern struct target_expmed *this_target_expmed;
     197                 :            : #else
     198                 :            : #define this_target_expmed (&default_target_expmed)
     199                 :            : #endif
     200                 :            : 
     201                 :            : /* Return a pointer to the alg_hash_entry at IDX.  */
     202                 :            : 
     203                 :            : static inline struct alg_hash_entry *
     204                 :    8546480 : alg_hash_entry_ptr (int idx)
     205                 :            : {
     206                 :    8546480 :   return &this_target_expmed->x_alg_hash[idx];
     207                 :            : }
     208                 :            : 
     209                 :            : /* Return true if the x_alg_hash field might have been used.  */
     210                 :            : 
     211                 :            : static inline bool
     212                 :     151703 : alg_hash_used_p (void)
     213                 :            : {
     214                 :     151703 :   return this_target_expmed->x_alg_hash_used_p;
     215                 :            : }
     216                 :            : 
     217                 :            : /* Set whether the x_alg_hash field might have been used.  */
     218                 :            : 
     219                 :            : static inline void
     220                 :     150913 : set_alg_hash_used_p (bool usedp)
     221                 :            : {
     222                 :     150913 :   this_target_expmed->x_alg_hash_used_p = usedp;
     223                 :     150913 : }
     224                 :            : 
     225                 :            : /* Compute an index into the cost arrays by mode class.  */
     226                 :            : 
     227                 :            : static inline int
     228                 : 1874515950 : expmed_mode_index (machine_mode mode)
     229                 :            : {
     230                 : 1874515950 :   switch (GET_MODE_CLASS (mode))
     231                 :            :     {
     232                 :  463658950 :     case MODE_INT:
     233                 :  463658950 :       return mode - MIN_MODE_INT;
     234                 :  148669000 :     case MODE_PARTIAL_INT:
     235                 :            :       /* If there are no partial integer modes, help the compiler
     236                 :            :          to figure out this will never happen.  See PR59934.  */
     237                 :  148669000 :       if (MIN_MODE_PARTIAL_INT != VOIDmode)
     238                 :  148669000 :         return mode - MIN_MODE_PARTIAL_INT + NUM_MODE_INT;
     239                 :            :       break;
     240                 : 1262190000 :     case MODE_VECTOR_INT:
     241                 :            :       /* If there are no vector integer modes, help the compiler
     242                 :            :          to figure out this will never happen.  See PR59934.  */
     243                 : 1262190000 :       if (MIN_MODE_VECTOR_INT != VOIDmode)
     244                 : 1262190000 :         return mode - MIN_MODE_VECTOR_INT + NUM_MODE_IP_INT;
     245                 :            :       break;
     246                 :          0 :     default:
     247                 :          0 :       break;
     248                 :            :     }
     249                 :          0 :   gcc_unreachable ();
     250                 :            : }
     251                 :            : 
     252                 :            : /* Return a pointer to a boolean contained in EOC indicating whether
     253                 :            :    a particular operation performed in MODE is cheap when optimizing
     254                 :            :    for SPEED.  */
     255                 :            : 
     256                 :            : static inline bool *
     257                 :   25502000 : expmed_op_cheap_ptr (struct expmed_op_cheap *eoc, bool speed,
     258                 :            :                      machine_mode mode)
     259                 :            : {
     260                 :   25518000 :   int idx = expmed_mode_index (mode);
     261                 :   25502000 :   return &eoc->cheap[speed][idx];
     262                 :            : }
     263                 :            : 
     264                 :            : /* Return a pointer to a cost contained in COSTS when a particular
     265                 :            :    operation is performed in MODE when optimizing for SPEED.  */
     266                 :            : 
     267                 :            : static inline int *
     268                 : 1835942227 : expmed_op_cost_ptr (struct expmed_op_costs *costs, bool speed,
     269                 :            :                     machine_mode mode)
     270                 :            : {
     271                 : 3607445954 :   int idx = expmed_mode_index (mode);
     272                 : 1829886027 :   return &costs->cost[speed][idx];
     273                 :            : }
     274                 :            : 
     275                 :            : /* Subroutine of {set_,}sdiv_pow2_cheap.  Not to be used otherwise.  */
     276                 :            : 
     277                 :            : static inline bool *
     278                 :   12756500 : sdiv_pow2_cheap_ptr (bool speed, machine_mode mode)
     279                 :            : {
     280                 :   12770000 :   return expmed_op_cheap_ptr (&this_target_expmed->x_sdiv_pow2_cheap,
     281                 :            :                               speed, mode);
     282                 :            : }
     283                 :            : 
     284                 :            : /* Set whether a signed division by a power of 2 is cheap in MODE
     285                 :            :    when optimizing for SPEED.  */
     286                 :            : 
     287                 :            : static inline void
     288                 :   12743100 : set_sdiv_pow2_cheap (bool speed, machine_mode mode, bool cheap_p)
     289                 :            : {
     290                 :   12743100 :   *sdiv_pow2_cheap_ptr (speed, mode) = cheap_p;
     291                 :            : }
     292                 :            : 
     293                 :            : /* Return whether a signed division by a power of 2 is cheap in MODE
     294                 :            :    when optimizing for SPEED.  */
     295                 :            : 
     296                 :            : static inline bool
     297                 :      13460 : sdiv_pow2_cheap (bool speed, machine_mode mode)
     298                 :            : {
     299                 :      13460 :   return *sdiv_pow2_cheap_ptr (speed, mode);
     300                 :            : }
     301                 :            : 
     302                 :            : /* Subroutine of {set_,}smod_pow2_cheap.  Not to be used otherwise.  */
     303                 :            : 
     304                 :            : static inline bool *
     305                 :   12745500 : smod_pow2_cheap_ptr (bool speed, machine_mode mode)
     306                 :            : {
     307                 :   12748000 :   return expmed_op_cheap_ptr (&this_target_expmed->x_smod_pow2_cheap,
     308                 :            :                               speed, mode);
     309                 :            : }
     310                 :            : 
     311                 :            : /* Set whether a signed modulo by a power of 2 is CHEAP in MODE when
     312                 :            :    optimizing for SPEED.  */
     313                 :            : 
     314                 :            : static inline void
     315                 :   12743100 : set_smod_pow2_cheap (bool speed, machine_mode mode, bool cheap)
     316                 :            : {
     317                 :   12743100 :   *smod_pow2_cheap_ptr (speed, mode) = cheap;
     318                 :            : }
     319                 :            : 
     320                 :            : /* Return whether a signed modulo by a power of 2 is cheap in MODE
     321                 :            :    when optimizing for SPEED.  */
     322                 :            : 
     323                 :            : static inline bool
     324                 :       2467 : smod_pow2_cheap (bool speed, machine_mode mode)
     325                 :            : {
     326                 :       2467 :   return *smod_pow2_cheap_ptr (speed, mode);
     327                 :            : }
     328                 :            : 
     329                 :            : /* Subroutine of {set_,}zero_cost.  Not to be used otherwise.  */
     330                 :            : 
     331                 :            : static inline int *
     332                 :    1575010 : zero_cost_ptr (bool speed)
     333                 :            : {
     334                 :    1575010 :   return &this_target_expmed->x_zero_cost[speed];
     335                 :            : }
     336                 :            : 
     337                 :            : /* Set the COST of loading zero when optimizing for SPEED.  */
     338                 :            : 
     339                 :            : static inline void
     340                 :     303406 : set_zero_cost (bool speed, int cost)
     341                 :            : {
     342                 :     303406 :   *zero_cost_ptr (speed) = cost;
     343                 :            : }
     344                 :            : 
     345                 :            : /* Return the COST of loading zero when optimizing for SPEED.  */
     346                 :            : 
     347                 :            : static inline int
     348                 :    1271610 : zero_cost (bool speed)
     349                 :            : {
     350                 :     423869 :   return *zero_cost_ptr (speed);
     351                 :            : }
     352                 :            : 
     353                 :            : /* Subroutine of {set_,}add_cost.  Not to be used otherwise.  */
     354                 :            : 
     355                 :            : static inline int *
     356                 :   77966547 : add_cost_ptr (bool speed, machine_mode mode)
     357                 :            : {
     358                 :  155361094 :   return expmed_op_cost_ptr (&this_target_expmed->x_add_cost, speed, mode);
     359                 :            : }
     360                 :            : 
     361                 :            : /* Set the COST of computing an add in MODE when optimizing for SPEED.  */
     362                 :            : 
     363                 :            : static inline void
     364                 :   12743100 : set_add_cost (bool speed, machine_mode mode, int cost)
     365                 :            : {
     366                 :   12743100 :   *add_cost_ptr (speed, mode) = cost;
     367                 :            : }
     368                 :            : 
     369                 :            : /* Return the cost of computing an add in MODE when optimizing for SPEED.  */
     370                 :            : 
     371                 :            : static inline int
     372                 :   65223447 : add_cost (bool speed, machine_mode mode)
     373                 :            : {
     374                 :   39228147 :   return *add_cost_ptr (speed, mode);
     375                 :            : }
     376                 :            : 
     377                 :            : /* Subroutine of {set_,}neg_cost.  Not to be used otherwise.  */
     378                 :            : 
     379                 :            : static inline int *
     380                 :   14361698 : neg_cost_ptr (bool speed, machine_mode mode)
     381                 :            : {
     382                 :   28723396 :   return expmed_op_cost_ptr (&this_target_expmed->x_neg_cost, speed, mode);
     383                 :            : }
     384                 :            : 
     385                 :            : /* Set the COST of computing a negation in MODE when optimizing for SPEED.  */
     386                 :            : 
     387                 :            : static inline void
     388                 :   12743100 : set_neg_cost (bool speed, machine_mode mode, int cost)
     389                 :            : {
     390                 :   12743100 :   *neg_cost_ptr (speed, mode) = cost;
     391                 :            : }
     392                 :            : 
     393                 :            : /* Return the cost of computing a negation in MODE when optimizing for
     394                 :            :    SPEED.  */
     395                 :            : 
     396                 :            : static inline int
     397                 :    1618638 : neg_cost (bool speed, machine_mode mode)
     398                 :            : {
     399                 :    1618638 :   return *neg_cost_ptr (speed, mode);
     400                 :            : }
     401                 :            : 
     402                 :            : /* Subroutine of {set_,}shift_cost.  Not to be used otherwise.  */
     403                 :            : 
     404                 :            : static inline int *
     405                 :  433774130 : shift_cost_ptr (bool speed, machine_mode mode, int bits)
     406                 :            : {
     407                 :  861506130 :   return expmed_op_cost_ptr (&this_target_expmed->x_shift_cost[bits],
     408                 :            :                              speed, mode);
     409                 :            : }
     410                 :            : 
     411                 :            : /* Set the COST of doing a shift in MODE by BITS when optimizing for SPEED.  */
     412                 :            : 
     413                 :            : static inline void
     414                 :  427196000 : set_shift_cost (bool speed, machine_mode mode, int bits, int cost)
     415                 :            : {
     416                 :  427196000 :   *shift_cost_ptr (speed, mode, bits) = cost;
     417                 :            : }
     418                 :            : 
     419                 :            : /* Return the cost of doing a shift in MODE by BITS when optimizing for
     420                 :            :    SPEED.  */
     421                 :            : 
     422                 :            : static inline int
     423                 :     864366 : shift_cost (bool speed, machine_mode mode, int bits)
     424                 :            : {
     425                 :    6550550 :   return *shift_cost_ptr (speed, mode, bits);
     426                 :            : }
     427                 :            : 
     428                 :            : /* Subroutine of {set_,}shiftadd_cost.  Not to be used otherwise.  */
     429                 :            : 
     430                 :            : static inline int *
     431                 :  429431621 : shiftadd_cost_ptr (bool speed, machine_mode mode, int bits)
     432                 :            : {
     433                 :  845123621 :   return expmed_op_cost_ptr (&this_target_expmed->x_shiftadd_cost[bits],
     434                 :            :                              speed, mode);
     435                 :            : }
     436                 :            : 
     437                 :            : /* Set the COST of doing a shift in MODE by BITS followed by an add when
     438                 :            :    optimizing for SPEED.  */
     439                 :            : 
     440                 :            : static inline void
     441                 :  427196000 : set_shiftadd_cost (bool speed, machine_mode mode, int bits, int cost)
     442                 :            : {
     443                 :  427196000 :   *shiftadd_cost_ptr (speed, mode, bits) = cost;
     444                 :            : }
     445                 :            : 
     446                 :            : /* Return the cost of doing a shift in MODE by BITS followed by an add
     447                 :            :    when optimizing for SPEED.  */
     448                 :            : 
     449                 :            : static inline int
     450                 :    2236161 : shiftadd_cost (bool speed, machine_mode mode, int bits)
     451                 :            : {
     452                 :    2236161 :   return *shiftadd_cost_ptr (speed, mode, bits);
     453                 :            : }
     454                 :            : 
     455                 :            : /* Subroutine of {set_,}shiftsub0_cost.  Not to be used otherwise.  */
     456                 :            : 
     457                 :            : static inline int *
     458                 :  427978689 : shiftsub0_cost_ptr (bool speed, machine_mode mode, int bits)
     459                 :            : {
     460                 :  855679689 :   return expmed_op_cost_ptr (&this_target_expmed->x_shiftsub0_cost[bits],
     461                 :            :                              speed, mode);
     462                 :            : }
     463                 :            : 
     464                 :            : /* Set the COST of doing a shift in MODE by BITS and then subtracting a
     465                 :            :    value when optimizing for SPEED.  */
     466                 :            : 
     467                 :            : static inline void
     468                 :  427196000 : set_shiftsub0_cost (bool speed, machine_mode mode, int bits, int cost)
     469                 :            : {
     470                 :  427196000 :   *shiftsub0_cost_ptr (speed, mode, bits) = cost;
     471                 :            : }
     472                 :            : 
     473                 :            : /* Return the cost of doing a shift in MODE by BITS and then subtracting
     474                 :            :    a value when optimizing for SPEED.  */
     475                 :            : 
     476                 :            : static inline int
     477                 :     783223 : shiftsub0_cost (bool speed, machine_mode mode, int bits)
     478                 :            : {
     479                 :     783223 :   return *shiftsub0_cost_ptr (speed, mode, bits);
     480                 :            : }
     481                 :            : 
     482                 :            : /* Subroutine of {set_,}shiftsub1_cost.  Not to be used otherwise.  */
     483                 :            : 
     484                 :            : static inline int *
     485                 :  427825820 : shiftsub1_cost_ptr (bool speed, machine_mode mode, int bits)
     486                 :            : {
     487                 :  855535820 :   return expmed_op_cost_ptr (&this_target_expmed->x_shiftsub1_cost[bits],
     488                 :            :                              speed, mode);
     489                 :            : }
     490                 :            : 
     491                 :            : /* Set the COST of subtracting a shift in MODE by BITS from a value when
     492                 :            :    optimizing for SPEED.  */
     493                 :            : 
     494                 :            : static inline void
     495                 :  427196000 : set_shiftsub1_cost (bool speed, machine_mode mode, int bits, int cost)
     496                 :            : {
     497                 :  427196000 :   *shiftsub1_cost_ptr (speed, mode, bits) = cost;
     498                 :            : }
     499                 :            : 
     500                 :            : /* Return the cost of subtracting a shift in MODE by BITS from a value
     501                 :            :    when optimizing for SPEED.  */
     502                 :            : 
     503                 :            : static inline int
     504                 :     630455 : shiftsub1_cost (bool speed, machine_mode mode, int bits)
     505                 :            : {
     506                 :    1139620 :   return *shiftsub1_cost_ptr (speed, mode, bits);
     507                 :            : }
     508                 :            : 
     509                 :            : /* Subroutine of {set_,}mul_cost.  Not to be used otherwise.  */
     510                 :            : 
     511                 :            : static inline int *
     512                 :   12832082 : mul_cost_ptr (bool speed, machine_mode mode)
     513                 :            : {
     514                 :   25664064 :   return expmed_op_cost_ptr (&this_target_expmed->x_mul_cost, speed, mode);
     515                 :            : }
     516                 :            : 
     517                 :            : /* Set the COST of doing a multiplication in MODE when optimizing for
     518                 :            :    SPEED.  */
     519                 :            : 
     520                 :            : static inline void
     521                 :   12743100 : set_mul_cost (bool speed, machine_mode mode, int cost)
     522                 :            : {
     523                 :   12743100 :   *mul_cost_ptr (speed, mode) = cost;
     524                 :            : }
     525                 :            : 
     526                 :            : /* Return the cost of doing a multiplication in MODE when optimizing
     527                 :            :    for SPEED.  */
     528                 :            : 
     529                 :            : static inline int
     530                 :      88980 : mul_cost (bool speed, machine_mode mode)
     531                 :            : {
     532                 :      88980 :   return *mul_cost_ptr (speed, mode);
     533                 :            : }
     534                 :            : 
     535                 :            : /* Subroutine of {set_,}sdiv_cost.  Not to be used otherwise.  */
     536                 :            : 
     537                 :            : static inline int *
     538                 :   12811600 : sdiv_cost_ptr (bool speed, machine_mode mode)
     539                 :            : {
     540                 :   25623100 :   return expmed_op_cost_ptr (&this_target_expmed->x_sdiv_cost, speed, mode);
     541                 :            : }
     542                 :            : 
     543                 :            : /* Set the COST of doing a signed division in MODE when optimizing
     544                 :            :    for SPEED.  */
     545                 :            : 
     546                 :            : static inline void
     547                 :   12743100 : set_sdiv_cost (bool speed, machine_mode mode, int cost)
     548                 :            : {
     549                 :   12743100 :   *sdiv_cost_ptr (speed, mode) = cost;
     550                 :            : }
     551                 :            : 
     552                 :            : /* Return the cost of doing a signed division in MODE when optimizing
     553                 :            :    for SPEED.  */
     554                 :            : 
     555                 :            : static inline int
     556                 :      68520 : sdiv_cost (bool speed, machine_mode mode)
     557                 :            : {
     558                 :      68520 :   return *sdiv_cost_ptr (speed, mode);
     559                 :            : }
     560                 :            : 
     561                 :            : /* Subroutine of {set_,}udiv_cost.  Not to be used otherwise.  */
     562                 :            : 
     563                 :            : static inline int *
     564                 :   12793200 : udiv_cost_ptr (bool speed, machine_mode mode)
     565                 :            : {
     566                 :   25586400 :   return expmed_op_cost_ptr (&this_target_expmed->x_udiv_cost, speed, mode);
     567                 :            : }
     568                 :            : 
     569                 :            : /* Set the COST of doing an unsigned division in MODE when optimizing
     570                 :            :    for SPEED.  */
     571                 :            : 
     572                 :            : static inline void
     573                 :   12743100 : set_udiv_cost (bool speed, machine_mode mode, int cost)
     574                 :            : {
     575                 :   12743100 :   *udiv_cost_ptr (speed, mode) = cost;
     576                 :            : }
     577                 :            : 
     578                 :            : /* Return the cost of doing an unsigned division in MODE when
     579                 :            :    optimizing for SPEED.  */
     580                 :            : 
     581                 :            : static inline int
     582                 :      50123 : udiv_cost (bool speed, machine_mode mode)
     583                 :            : {
     584                 :      50123 :   return *udiv_cost_ptr (speed, mode);
     585                 :            : }
     586                 :            : 
     587                 :            : /* Subroutine of {set_,}mul_widen_cost.  Not to be used otherwise.  */
     588                 :            : 
     589                 :            : static inline int *
     590                 :    1823270 : mul_widen_cost_ptr (bool speed, machine_mode mode)
     591                 :            : {
     592                 :          0 :   gcc_assert (GET_MODE_CLASS (mode) == MODE_INT);
     593                 :            : 
     594                 :    1823270 :   return &this_target_expmed->x_mul_widen_cost[speed][mode - MIN_MODE_INT];
     595                 :            : }
     596                 :            : 
     597                 :            : /* Set the COST for computing a widening multiplication in MODE when
     598                 :            :    optimizing for SPEED.  */
     599                 :            : 
     600                 :            : static inline void
     601                 :    1820440 : set_mul_widen_cost (bool speed, machine_mode mode, int cost)
     602                 :            : {
     603                 :    1820440 :   *mul_widen_cost_ptr (speed, mode) = cost;
     604                 :            : }
     605                 :            : 
     606                 :            : /* Return the cost for computing a widening multiplication in MODE when
     607                 :            :    optimizing for SPEED.  */
     608                 :            : 
     609                 :            : static inline int
     610                 :       2832 : mul_widen_cost (bool speed, machine_mode mode)
     611                 :            : {
     612                 :       2832 :   return *mul_widen_cost_ptr (speed, mode);
     613                 :            : }
     614                 :            : 
     615                 :            : /* Subroutine of {set_,}mul_highpart_cost.  Not to be used otherwise.  */
     616                 :            : 
     617                 :            : static inline int *
     618                 :    1861820 : mul_highpart_cost_ptr (bool speed, machine_mode mode)
     619                 :            : {
     620                 :    1861820 :   gcc_assert (GET_MODE_CLASS (mode) == MODE_INT);
     621                 :    1861820 :   int m = mode - MIN_MODE_INT;
     622                 :    1861820 :   gcc_assert (m < NUM_MODE_INT);
     623                 :            : 
     624                 :    1861820 :   return &this_target_expmed->x_mul_highpart_cost[speed][m];
     625                 :            : }
     626                 :            : 
     627                 :            : /* Set the COST for computing the high part of a multiplication in MODE
     628                 :            :    when optimizing for SPEED.  */
     629                 :            : 
     630                 :            : static inline void
     631                 :    1820440 : set_mul_highpart_cost (bool speed, machine_mode mode, int cost)
     632                 :            : {
     633                 :    1820440 :   *mul_highpart_cost_ptr (speed, mode) = cost;
     634                 :    1820440 : }
     635                 :            : 
     636                 :            : /* Return the cost for computing the high part of a multiplication in MODE
     637                 :            :    when optimizing for SPEED.  */
     638                 :            : 
     639                 :            : static inline int
     640                 :      41382 : mul_highpart_cost (bool speed, machine_mode mode)
     641                 :            : {
     642                 :      41382 :   return *mul_highpart_cost_ptr (speed, mode);
     643                 :            : }
     644                 :            : 
     645                 :            : /* Subroutine of {set_,}convert_cost.  Not to be used otherwise.  */
     646                 :            : 
     647                 :            : static inline int *
     648                 :   22981410 : convert_cost_ptr (machine_mode to_mode, machine_mode from_mode,
     649                 :            :                   bool speed)
     650                 :            : {
     651                 :   22981410 :   int to_idx = expmed_mode_index (to_mode);
     652                 :   22981410 :   int from_idx = expmed_mode_index (from_mode);
     653                 :            : 
     654                 :   22981410 :   gcc_assert (IN_RANGE (to_idx, 0, NUM_MODE_IP_INT - 1));
     655                 :   22981410 :   gcc_assert (IN_RANGE (from_idx, 0, NUM_MODE_IP_INT - 1));
     656                 :            : 
     657                 :   22981410 :   return &this_target_expmed->x_convert_cost[speed][to_idx][from_idx];
     658                 :            : }
     659                 :            : 
     660                 :            : /* Set the COST for converting from FROM_MODE to TO_MODE when optimizing
     661                 :            :    for SPEED.  */
     662                 :            : 
     663                 :            : static inline void
     664                 :   21238400 : set_convert_cost (machine_mode to_mode, machine_mode from_mode,
     665                 :            :                   bool speed, int cost)
     666                 :            : {
     667                 :   21238400 :   *convert_cost_ptr (to_mode, from_mode, speed) = cost;
     668                 :            : }
     669                 :            : 
     670                 :            : /* Return the cost for converting from FROM_MODE to TO_MODE when optimizing
     671                 :            :    for SPEED.  */
     672                 :            : 
     673                 :            : static inline int
     674                 :    1743010 : convert_cost (machine_mode to_mode, machine_mode from_mode,
     675                 :            :               bool speed)
     676                 :            : {
     677                 :    1743010 :   return *convert_cost_ptr (to_mode, from_mode, speed);
     678                 :            : }
     679                 :            : 
     680                 :            : extern int mult_by_coeff_cost (HOST_WIDE_INT, machine_mode, bool);
     681                 :            : extern rtx emit_cstore (rtx target, enum insn_code icode, enum rtx_code code,
     682                 :            :                         machine_mode mode, machine_mode compare_mode,
     683                 :            :                         int unsignedp, rtx x, rtx y, int normalizep,
     684                 :            :                         machine_mode target_mode);
     685                 :            : 
     686                 :            : /* Arguments MODE, RTX: return an rtx for the negation of that value.
     687                 :            :    May emit insns.  */
     688                 :            : extern rtx negate_rtx (machine_mode, rtx);
     689                 :            : 
     690                 :            : /* Arguments MODE, RTX: return an rtx for the flipping of that value.
     691                 :            :    May emit insns.  */
     692                 :            : extern rtx flip_storage_order (machine_mode, rtx);
     693                 :            : 
     694                 :            : /* Expand a logical AND operation.  */
     695                 :            : extern rtx expand_and (machine_mode, rtx, rtx, rtx);
     696                 :            : 
     697                 :            : /* Emit a store-flag operation.  */
     698                 :            : extern rtx emit_store_flag (rtx, enum rtx_code, rtx, rtx, machine_mode,
     699                 :            :                             int, int);
     700                 :            : 
     701                 :            : /* Like emit_store_flag, but always succeeds.  */
     702                 :            : extern rtx emit_store_flag_force (rtx, enum rtx_code, rtx, rtx,
     703                 :            :                                   machine_mode, int, int);
     704                 :            : 
     705                 :            : extern void canonicalize_comparison (machine_mode, enum rtx_code *, rtx *);
     706                 :            : 
     707                 :            : /* Choose a minimal N + 1 bit approximation to 1/D that can be used to
     708                 :            :    replace division by D, and put the least significant N bits of the result
     709                 :            :    in *MULTIPLIER_PTR and return the most significant bit.  */
     710                 :            : extern unsigned HOST_WIDE_INT choose_multiplier (unsigned HOST_WIDE_INT, int,
     711                 :            :                                                  int, unsigned HOST_WIDE_INT *,
     712                 :            :                                                  int *, int *);
     713                 :            : 
     714                 :            : #ifdef TREE_CODE
     715                 :            : extern rtx expand_variable_shift (enum tree_code, machine_mode,
     716                 :            :                                   rtx, tree, rtx, int);
     717                 :            : extern rtx expand_shift (enum tree_code, machine_mode, rtx, poly_int64, rtx,
     718                 :            :                          int);
     719                 :            : extern rtx expand_divmod (int, enum tree_code, machine_mode, rtx, rtx,
     720                 :            :                           rtx, int);
     721                 :            : #endif
     722                 :            : 
     723                 :            : extern void store_bit_field (rtx, poly_uint64, poly_uint64,
     724                 :            :                              poly_uint64, poly_uint64,
     725                 :            :                              machine_mode, rtx, bool);
     726                 :            : extern rtx extract_bit_field (rtx, poly_uint64, poly_uint64, int, rtx,
     727                 :            :                               machine_mode, machine_mode, bool, rtx *);
     728                 :            : extern rtx extract_low_bits (machine_mode, machine_mode, rtx);
     729                 :            : extern rtx expand_mult (machine_mode, rtx, rtx, rtx, int, bool = false);
     730                 :            : extern rtx expand_mult_highpart_adjust (scalar_int_mode, rtx, rtx, rtx,
     731                 :            :                                         rtx, int);
     732                 :            : 
     733                 :            : #endif  // EXPMED_H

Generated by: LCOV version 1.0

LCOV profile is generated on x86_64 machine using following configure options: configure --disable-bootstrap --enable-coverage=opt --enable-languages=c,c++,fortran,go,jit,lto --enable-host-shared. GCC test suite is run with the built compiler.