Merge commit 'f07ccd6e4fbc5bbfeb94d40e0f14bc527a7d5439' as 'cpp/simdcomp'

2026-10-29 23:07:06 +00:00 · 2017-01-26 20:28:23 +01:00
parent f19f8757de f07ccd6e4f
commit 9f02b090dd
32 changed files with 95877 additions and 0 deletions
@@ -0,0 +1,40 @@
+/**
+ * This code is released under a BSD License.
+ */
+
+#ifndef INCLUDE_AVXBITPACKING_H_
+#define INCLUDE_AVXBITPACKING_H_
+
+
+#ifdef __AVX2__
+
+#include "portability.h"
+
+
+/* AVX2 is required */
+#include <immintrin.h>
+/* for memset */
+#include <string.h>
+
+#include "simdcomputil.h"
+
+enum{ AVXBlockSize = 256};
+
+/* max integer logarithm over a range of AVXBlockSize integers (256 integer) */
+uint32_t avxmaxbits(const uint32_t * begin);
+
+/* reads 256 values from "in", writes  "bit" 256-bit vectors to "out" */
+void avxpack(const uint32_t *  in,__m256i *  out, const uint32_t bit);
+
+/* reads 256 values from "in", writes  "bit" 256-bit vectors to "out" */
+void avxpackwithoutmask(const uint32_t *  in,__m256i *  out, const uint32_t bit);
+
+/* reads  "bit" 256-bit vectors from "in", writes  256 values to "out" */
+void avxunpack(const __m256i *  in,uint32_t *  out, const uint32_t bit);
+
+
+
+
+#endif /* __AVX2__ */
+
+#endif /* INCLUDE_AVXBITPACKING_H_ */