vppinfra: add clib_array_mask_set_u32()
Type: improvement
@@ -93,4 +93,37 @@ clib_array_mask_u32 (u32 *src, u32 mask, u32 n_elts)
#endif
}
+static_always_inline void
+clib_array_mask_set_u32_x64 (u32 *a, u32 v, uword bmp, int n_elts)
+{
+#if defined(CLIB_HAVE_VEC512_MASK_LOAD_STORE)
+ u32x16 r = u32x16_splat (v);
+ for (; n_elts > 0; n_elts -= 16, a += 16, bmp >>= 16)
+ u32x16_mask_store (r, a, bmp);
+#elif defined(CLIB_HAVE_VEC256_MASK_LOAD_STORE)
+ u32x8 r = u32x8_splat (v);
+ for (; n_elts > 0; n_elts -= 8, a += 8, bmp >>= 8)
+ u32x8_mask_store (r, a, bmp);
+#else
+ while (bmp)
+ {
+ a[get_lowest_set_bit_index (bmp)] = v;
+ bmp = clear_lowest_set_bit (bmp);
+ }
+#endif
+}
+
+static_always_inline void
+clib_array_mask_set_u32 (u32 *a, u32 v, uword *bmp, u32 n_elts)
+{
+ while (n_elts >= uword_bits)
+ {
+ clib_array_mask_set_u32_x64 (a, v, bmp++[0], uword_bits);
+ a += uword_bits;
+ n_elts -= uword_bits;
+ }
+
+ clib_array_mask_set_u32_x64 (a, v, bmp[0] & pow2_mask (n_elts), n_elts);
+}
+
#endif
