The Tor Browser: media/libopus/silk/arm/macros

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /***********************************************************************

     2 Copyright (c) 2006-2011, Skype Limited. All rights reserved.

     3 Copyright (c) 2013       Parrot

     4 Redistribution and use in source and binary forms, with or without

     5 modification, are permitted provided that the following conditions

     6 are met:

     7 - Redistributions of source code must retain the above copyright notice,

     8 this list of conditions and the following disclaimer.

     9 - Redistributions in binary form must reproduce the above copyright

    10 notice, this list of conditions and the following disclaimer in the

    11 documentation and/or other materials provided with the distribution.

    12 - Neither the name of Internet Society, IETF or IETF Trust, nor the

    13 names of specific contributors, may be used to endorse or promote

    14 products derived from this software without specific prior written

    15 permission.

    16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    19 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

    20 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    21 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    22 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    23 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    24 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    25 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    26 POSSIBILITY OF SUCH DAMAGE.

    27 ***********************************************************************/

    29 #ifndef SILK_MACROS_ARMv5E_H

    30 #define SILK_MACROS_ARMv5E_H

    32 /* (a32 * (opus_int32)((opus_int16)(b32))) >> 16 output have to be 32bit int */

    33 #undef silk_SMULWB

    34 static OPUS_INLINE opus_int32 silk_SMULWB_armv5e(opus_int32 a, opus_int16 b)

    35 {

    36   int res;

    37   __asm__(

    38       "#silk_SMULWB\n\t"

    39       "smulwb %0, %1, %2\n\t"

    40       : "=r"(res)

    41       : "r"(a), "r"(b)

    42   );

    43   return res;

    44 }

    45 #define silk_SMULWB(a, b) (silk_SMULWB_armv5e(a, b))

    47 /* a32 + (b32 * (opus_int32)((opus_int16)(c32))) >> 16 output have to be 32bit int */

    48 #undef silk_SMLAWB

    49 static OPUS_INLINE opus_int32 silk_SMLAWB_armv5e(opus_int32 a, opus_int32 b,

    50  opus_int16 c)

    51 {

    52   int res;

    53   __asm__(

    54       "#silk_SMLAWB\n\t"

    55       "smlawb %0, %1, %2, %3\n\t"

    56       : "=r"(res)

    57       : "r"(b), "r"(c), "r"(a)

    58   );

    59   return res;

    60 }

    61 #define silk_SMLAWB(a, b, c) (silk_SMLAWB_armv5e(a, b, c))

    63 /* (a32 * (b32 >> 16)) >> 16 */

    64 #undef silk_SMULWT

    65 static OPUS_INLINE opus_int32 silk_SMULWT_armv5e(opus_int32 a, opus_int32 b)

    66 {

    67   int res;

    68   __asm__(

    69       "#silk_SMULWT\n\t"

    70       "smulwt %0, %1, %2\n\t"

    71       : "=r"(res)

    72       : "r"(a), "r"(b)

    73   );

    74   return res;

    75 }

    76 #define silk_SMULWT(a, b) (silk_SMULWT_armv5e(a, b))

    78 /* a32 + (b32 * (c32 >> 16)) >> 16 */

    79 #undef silk_SMLAWT

    80 static OPUS_INLINE opus_int32 silk_SMLAWT_armv5e(opus_int32 a, opus_int32 b,

    81  opus_int32 c)

    82 {

    83   int res;

    84   __asm__(

    85       "#silk_SMLAWT\n\t"

    86       "smlawt %0, %1, %2, %3\n\t"

    87       : "=r"(res)

    88       : "r"(b), "r"(c), "r"(a)

    89   );

    90   return res;

    91 }

    92 #define silk_SMLAWT(a, b, c) (silk_SMLAWT_armv5e(a, b, c))

    94 /* (opus_int32)((opus_int16)(a3))) * (opus_int32)((opus_int16)(b32)) output have to be 32bit int */

    95 #undef silk_SMULBB

    96 static OPUS_INLINE opus_int32 silk_SMULBB_armv5e(opus_int32 a, opus_int32 b)

    97 {

    98   int res;

    99   __asm__(

   100       "#silk_SMULBB\n\t"

   101       "smulbb %0, %1, %2\n\t"

   102       : "=r"(res)

   103       : "%r"(a), "r"(b)

   104   );

   105   return res;

   106 }

   107 #define silk_SMULBB(a, b) (silk_SMULBB_armv5e(a, b))

   109 /* a32 + (opus_int32)((opus_int16)(b32)) * (opus_int32)((opus_int16)(c32)) output have to be 32bit int */

   110 #undef silk_SMLABB

   111 static OPUS_INLINE opus_int32 silk_SMLABB_armv5e(opus_int32 a, opus_int32 b,

   112  opus_int32 c)

   113 {

   114   int res;

   115   __asm__(

   116       "#silk_SMLABB\n\t"

   117       "smlabb %0, %1, %2, %3\n\t"

   118       : "=r"(res)

   119       : "%r"(b), "r"(c), "r"(a)

   120   );

   121   return res;

   122 }

   123 #define silk_SMLABB(a, b, c) (silk_SMLABB_armv5e(a, b, c))

   125 /* (opus_int32)((opus_int16)(a32)) * (b32 >> 16) */

   126 #undef silk_SMULBT

   127 static OPUS_INLINE opus_int32 silk_SMULBT_armv5e(opus_int32 a, opus_int32 b)

   128 {

   129   int res;

   130   __asm__(

   131       "#silk_SMULBT\n\t"

   132       "smulbt %0, %1, %2\n\t"

   133       : "=r"(res)

   134       : "r"(a), "r"(b)

   135   );

   136   return res;

   137 }

   138 #define silk_SMULBT(a, b) (silk_SMULBT_armv5e(a, b))

   140 /* a32 + (opus_int32)((opus_int16)(b32)) * (c32 >> 16) */

   141 #undef silk_SMLABT

   142 static OPUS_INLINE opus_int32 silk_SMLABT_armv5e(opus_int32 a, opus_int32 b,

   143  opus_int32 c)

   144 {

   145   int res;

   146   __asm__(

   147       "#silk_SMLABT\n\t"

   148       "smlabt %0, %1, %2, %3\n\t"

   149       : "=r"(res)

   150       : "r"(b), "r"(c), "r"(a)

   151   );

   152   return res;

   153 }

   154 #define silk_SMLABT(a, b, c) (silk_SMLABT_armv5e(a, b, c))

   156 /* add/subtract with output saturated */

   157 #undef silk_ADD_SAT32

   158 static OPUS_INLINE opus_int32 silk_ADD_SAT32_armv5e(opus_int32 a, opus_int32 b)

   159 {

   160   int res;

   161   __asm__(

   162       "#silk_ADD_SAT32\n\t"

   163       "qadd %0, %1, %2\n\t"

   164       : "=r"(res)

   165       : "%r"(a), "r"(b)

   166   );

   167   return res;

   168 }

   169 #define silk_ADD_SAT32(a, b) (silk_ADD_SAT32_armv5e(a, b))

   171 #undef silk_SUB_SAT32

   172 static OPUS_INLINE opus_int32 silk_SUB_SAT32_armv5e(opus_int32 a, opus_int32 b)

   173 {

   174   int res;

   175   __asm__(

   176       "#silk_SUB_SAT32\n\t"

   177       "qsub %0, %1, %2\n\t"

   178       : "=r"(res)

   179       : "r"(a), "r"(b)

   180   );

   181   return res;

   182 }

   183 #define silk_SUB_SAT32(a, b) (silk_SUB_SAT32_armv5e(a, b))

   185 #undef silk_CLZ16

   186 static OPUS_INLINE opus_int32 silk_CLZ16_armv5(opus_int16 in16)

   187 {

   188   int res;

   189   __asm__(

   190       "#silk_CLZ16\n\t"

   191       "clz %0, %1;\n"

   192       : "=r"(res)

   193       : "r"(in16<<16|0x8000)

   194   );

   195   return res;

   196 }

   197 #define silk_CLZ16(in16) (silk_CLZ16_armv5(in16))

   199 #undef silk_CLZ32

   200 static OPUS_INLINE opus_int32 silk_CLZ32_armv5(opus_int32 in32)

   201 {

   202   int res;

   203   __asm__(

   204       "#silk_CLZ32\n\t"

   205       "clz %0, %1\n\t"

   206       : "=r"(res)

   207       : "r"(in32)

   208   );

   209   return res;

   210 }

   211 #define silk_CLZ32(in32) (silk_CLZ32_armv5(in32))

   213 #endif /* SILK_MACROS_ARMv5E_H */

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