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  25. <title>ARC SIMD Built-in Functions (Using the GNU Compiler Collection (GCC))</title>

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  70. <a name="ARC-SIMD-Built_002din-Functions"></a>

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  72. <p>

  73. Next: <a href="ARM-iWMMXt-Built_002din-Functions.html#ARM-iWMMXt-Built_002din-Functions" accesskey="n" rel="next">ARM iWMMXt Built-in Functions</a>, Previous: <a href="ARC-Built_002din-Functions.html#ARC-Built_002din-Functions" accesskey="p" rel="prev">ARC Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

  74. </div>

  75. <hr>

  76. <a name="ARC-SIMD-Built_002din-Functions-1"></a>

  77. <h4 class="subsection">6.60.5 ARC SIMD Built-in Functions</h4>

  78. 

  79. <p>SIMD builtins provided by the compiler can be used to generate the

  80. vector instructions.  This section describes the available builtins

  81. and their usage in programs.  With the <samp>-msimd</samp> option, the

  82. compiler provides 128-bit vector types, which can be specified using

  83. the <code>vector_size</code> attribute.  The header file <samp>arc-simd.h</samp>

  84. can be included to use the following predefined types:

  85. </p><div class="example">

  86. <pre class="example">typedef int __v4si   __attribute__((vector_size(16)));

  87. typedef short __v8hi __attribute__((vector_size(16)));

  88. </pre></div>

  89. 

  90. <p>These types can be used to define 128-bit variables.  The built-in

  91. functions listed in the following section can be used on these

  92. variables to generate the vector operations.

  93. </p>

  94. <p>For all builtins, <code>__builtin_arc_<var>someinsn</var></code>, the header file

  95. <samp>arc-simd.h</samp> also provides equivalent macros called

  96. <code>_<var>someinsn</var></code> that can be used for programming ease and

  97. improved readability.  The following macros for DMA control are also

  98. provided:

  99. </p><div class="example">

  100. <pre class="example">#define _setup_dma_in_channel_reg _vdiwr

  101. #define _setup_dma_out_channel_reg _vdowr

  102. </pre></div>

  103. 

  104. <p>The following is a complete list of all the SIMD built-ins provided

  105. for ARC, grouped by calling signature.

  106. </p>

  107. <p>The following take two <code>__v8hi</code> arguments and return a

  108. <code>__v8hi</code> result:

  109. </p><div class="example">

  110. <pre class="example">__v8hi __builtin_arc_vaddaw (__v8hi, __v8hi)

  111. __v8hi __builtin_arc_vaddw (__v8hi, __v8hi)

  112. __v8hi __builtin_arc_vand (__v8hi, __v8hi)

  113. __v8hi __builtin_arc_vandaw (__v8hi, __v8hi)

  114. __v8hi __builtin_arc_vavb (__v8hi, __v8hi)

  115. __v8hi __builtin_arc_vavrb (__v8hi, __v8hi)

  116. __v8hi __builtin_arc_vbic (__v8hi, __v8hi)

  117. __v8hi __builtin_arc_vbicaw (__v8hi, __v8hi)

  118. __v8hi __builtin_arc_vdifaw (__v8hi, __v8hi)

  119. __v8hi __builtin_arc_vdifw (__v8hi, __v8hi)

  120. __v8hi __builtin_arc_veqw (__v8hi, __v8hi)

  121. __v8hi __builtin_arc_vh264f (__v8hi, __v8hi)

  122. __v8hi __builtin_arc_vh264ft (__v8hi, __v8hi)

  123. __v8hi __builtin_arc_vh264fw (__v8hi, __v8hi)

  124. __v8hi __builtin_arc_vlew (__v8hi, __v8hi)

  125. __v8hi __builtin_arc_vltw (__v8hi, __v8hi)

  126. __v8hi __builtin_arc_vmaxaw (__v8hi, __v8hi)

  127. __v8hi __builtin_arc_vmaxw (__v8hi, __v8hi)

  128. __v8hi __builtin_arc_vminaw (__v8hi, __v8hi)

  129. __v8hi __builtin_arc_vminw (__v8hi, __v8hi)

  130. __v8hi __builtin_arc_vmr1aw (__v8hi, __v8hi)

  131. __v8hi __builtin_arc_vmr1w (__v8hi, __v8hi)

  132. __v8hi __builtin_arc_vmr2aw (__v8hi, __v8hi)

  133. __v8hi __builtin_arc_vmr2w (__v8hi, __v8hi)

  134. __v8hi __builtin_arc_vmr3aw (__v8hi, __v8hi)

  135. __v8hi __builtin_arc_vmr3w (__v8hi, __v8hi)

  136. __v8hi __builtin_arc_vmr4aw (__v8hi, __v8hi)

  137. __v8hi __builtin_arc_vmr4w (__v8hi, __v8hi)

  138. __v8hi __builtin_arc_vmr5aw (__v8hi, __v8hi)

  139. __v8hi __builtin_arc_vmr5w (__v8hi, __v8hi)

  140. __v8hi __builtin_arc_vmr6aw (__v8hi, __v8hi)

  141. __v8hi __builtin_arc_vmr6w (__v8hi, __v8hi)

  142. __v8hi __builtin_arc_vmr7aw (__v8hi, __v8hi)

  143. __v8hi __builtin_arc_vmr7w (__v8hi, __v8hi)

  144. __v8hi __builtin_arc_vmrb (__v8hi, __v8hi)

  145. __v8hi __builtin_arc_vmulaw (__v8hi, __v8hi)

  146. __v8hi __builtin_arc_vmulfaw (__v8hi, __v8hi)

  147. __v8hi __builtin_arc_vmulfw (__v8hi, __v8hi)

  148. __v8hi __builtin_arc_vmulw (__v8hi, __v8hi)

  149. __v8hi __builtin_arc_vnew (__v8hi, __v8hi)

  150. __v8hi __builtin_arc_vor (__v8hi, __v8hi)

  151. __v8hi __builtin_arc_vsubaw (__v8hi, __v8hi)

  152. __v8hi __builtin_arc_vsubw (__v8hi, __v8hi)

  153. __v8hi __builtin_arc_vsummw (__v8hi, __v8hi)

  154. __v8hi __builtin_arc_vvc1f (__v8hi, __v8hi)

  155. __v8hi __builtin_arc_vvc1ft (__v8hi, __v8hi)

  156. __v8hi __builtin_arc_vxor (__v8hi, __v8hi)

  157. __v8hi __builtin_arc_vxoraw (__v8hi, __v8hi)

  158. </pre></div>

  159. 

  160. <p>The following take one <code>__v8hi</code> and one <code>int</code> argument and return a

  161. <code>__v8hi</code> result:

  162. </p>

  163. <div class="example">

  164. <pre class="example">__v8hi __builtin_arc_vbaddw (__v8hi, int)

  165. __v8hi __builtin_arc_vbmaxw (__v8hi, int)

  166. __v8hi __builtin_arc_vbminw (__v8hi, int)

  167. __v8hi __builtin_arc_vbmulaw (__v8hi, int)

  168. __v8hi __builtin_arc_vbmulfw (__v8hi, int)

  169. __v8hi __builtin_arc_vbmulw (__v8hi, int)

  170. __v8hi __builtin_arc_vbrsubw (__v8hi, int)

  171. __v8hi __builtin_arc_vbsubw (__v8hi, int)

  172. </pre></div>

  173. 

  174. <p>The following take one <code>__v8hi</code> argument and one <code>int</code> argument which

  175. must be a 3-bit compile time constant indicating a register number

  176. I0-I7.  They return a <code>__v8hi</code> result.

  177. </p><div class="example">

  178. <pre class="example">__v8hi __builtin_arc_vasrw (__v8hi, const int)

  179. __v8hi __builtin_arc_vsr8 (__v8hi, const int)

  180. __v8hi __builtin_arc_vsr8aw (__v8hi, const int)

  181. </pre></div>

  182. 

  183. <p>The following take one <code>__v8hi</code> argument and one <code>int</code>

  184. argument which must be a 6-bit compile time constant.  They return a

  185. <code>__v8hi</code> result.

  186. </p><div class="example">

  187. <pre class="example">__v8hi __builtin_arc_vasrpwbi (__v8hi, const int)

  188. __v8hi __builtin_arc_vasrrpwbi (__v8hi, const int)

  189. __v8hi __builtin_arc_vasrrwi (__v8hi, const int)

  190. __v8hi __builtin_arc_vasrsrwi (__v8hi, const int)

  191. __v8hi __builtin_arc_vasrwi (__v8hi, const int)

  192. __v8hi __builtin_arc_vsr8awi (__v8hi, const int)

  193. __v8hi __builtin_arc_vsr8i (__v8hi, const int)

  194. </pre></div>

  195. 

  196. <p>The following take one <code>__v8hi</code> argument and one <code>int</code> argument which

  197. must be a 8-bit compile time constant.  They return a <code>__v8hi</code>

  198. result.

  199. </p><div class="example">

  200. <pre class="example">__v8hi __builtin_arc_vd6tapf (__v8hi, const int)

  201. __v8hi __builtin_arc_vmvaw (__v8hi, const int)

  202. __v8hi __builtin_arc_vmvw (__v8hi, const int)

  203. __v8hi __builtin_arc_vmvzw (__v8hi, const int)

  204. </pre></div>

  205. 

  206. <p>The following take two <code>int</code> arguments, the second of which which

  207. must be a 8-bit compile time constant.  They return a <code>__v8hi</code>

  208. result:

  209. </p><div class="example">

  210. <pre class="example">__v8hi __builtin_arc_vmovaw (int, const int)

  211. __v8hi __builtin_arc_vmovw (int, const int)

  212. __v8hi __builtin_arc_vmovzw (int, const int)

  213. </pre></div>

  214. 

  215. <p>The following take a single <code>__v8hi</code> argument and return a

  216. <code>__v8hi</code> result:

  217. </p><div class="example">

  218. <pre class="example">__v8hi __builtin_arc_vabsaw (__v8hi)

  219. __v8hi __builtin_arc_vabsw (__v8hi)

  220. __v8hi __builtin_arc_vaddsuw (__v8hi)

  221. __v8hi __builtin_arc_vexch1 (__v8hi)

  222. __v8hi __builtin_arc_vexch2 (__v8hi)

  223. __v8hi __builtin_arc_vexch4 (__v8hi)

  224. __v8hi __builtin_arc_vsignw (__v8hi)

  225. __v8hi __builtin_arc_vupbaw (__v8hi)

  226. __v8hi __builtin_arc_vupbw (__v8hi)

  227. __v8hi __builtin_arc_vupsbaw (__v8hi)

  228. __v8hi __builtin_arc_vupsbw (__v8hi)

  229. </pre></div>

  230. 

  231. <p>The following take two <code>int</code> arguments and return no result:

  232. </p><div class="example">

  233. <pre class="example">void __builtin_arc_vdirun (int, int)

  234. void __builtin_arc_vdorun (int, int)

  235. </pre></div>

  236. 

  237. <p>The following take two <code>int</code> arguments and return no result.  The

  238. first argument must a 3-bit compile time constant indicating one of

  239. the DR0-DR7 DMA setup channels:

  240. </p><div class="example">

  241. <pre class="example">void __builtin_arc_vdiwr (const int, int)

  242. void __builtin_arc_vdowr (const int, int)

  243. </pre></div>

  244. 

  245. <p>The following take an <code>int</code> argument and return no result:

  246. </p><div class="example">

  247. <pre class="example">void __builtin_arc_vendrec (int)

  248. void __builtin_arc_vrec (int)

  249. void __builtin_arc_vrecrun (int)

  250. void __builtin_arc_vrun (int)

  251. </pre></div>

  252. 

  253. <p>The following take a <code>__v8hi</code> argument and two <code>int</code>

  254. arguments and return a <code>__v8hi</code> result.  The second argument must

  255. be a 3-bit compile time constants, indicating one the registers I0-I7,

  256. and the third argument must be an 8-bit compile time constant.

  257. </p>

  258. <p><em>Note:</em> Although the equivalent hardware instructions do not take

  259. an SIMD register as an operand, these builtins overwrite the relevant

  260. bits of the <code>__v8hi</code> register provided as the first argument with

  261. the value loaded from the <code>[Ib, u8]</code> location in the SDM.

  262. </p>

  263. <div class="example">

  264. <pre class="example">__v8hi __builtin_arc_vld32 (__v8hi, const int, const int)

  265. __v8hi __builtin_arc_vld32wh (__v8hi, const int, const int)

  266. __v8hi __builtin_arc_vld32wl (__v8hi, const int, const int)

  267. __v8hi __builtin_arc_vld64 (__v8hi, const int, const int)

  268. </pre></div>

  269. 

  270. <p>The following take two <code>int</code> arguments and return a <code>__v8hi</code>

  271. result.  The first argument must be a 3-bit compile time constants,

  272. indicating one the registers I0-I7, and the second argument must be an

  273. 8-bit compile time constant.

  274. </p>

  275. <div class="example">

  276. <pre class="example">__v8hi __builtin_arc_vld128 (const int, const int)

  277. __v8hi __builtin_arc_vld64w (const int, const int)

  278. </pre></div>

  279. 

  280. <p>The following take a <code>__v8hi</code> argument and two <code>int</code>

  281. arguments and return no result.  The second argument must be a 3-bit

  282. compile time constants, indicating one the registers I0-I7, and the

  283. third argument must be an 8-bit compile time constant.

  284. </p>

  285. <div class="example">

  286. <pre class="example">void __builtin_arc_vst128 (__v8hi, const int, const int)

  287. void __builtin_arc_vst64 (__v8hi, const int, const int)

  288. </pre></div>

  289. 

  290. <p>The following take a <code>__v8hi</code> argument and three <code>int</code>

  291. arguments and return no result.  The second argument must be a 3-bit

  292. compile-time constant, identifying the 16-bit sub-register to be

  293. stored, the third argument must be a 3-bit compile time constants,

  294. indicating one the registers I0-I7, and the fourth argument must be an

  295. 8-bit compile time constant.

  296. </p>

  297. <div class="example">

  298. <pre class="example">void __builtin_arc_vst16_n (__v8hi, const int, const int, const int)

  299. void __builtin_arc_vst32_n (__v8hi, const int, const int, const int)

  300. </pre></div>

  301. 

  302. <hr>

  303. <div class="header">

  304. <p>

  305. Next: <a href="ARM-iWMMXt-Built_002din-Functions.html#ARM-iWMMXt-Built_002din-Functions" accesskey="n" rel="next">ARM iWMMXt Built-in Functions</a>, Previous: <a href="ARC-Built_002din-Functions.html#ARC-Built_002din-Functions" accesskey="p" rel="prev">ARC Built-in Functions</a>, Up: <a href="Target-Builtins.html#Target-Builtins" accesskey="u" rel="up">Target Builtins</a> &nbsp; [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>

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