aboutsummaryrefslogtreecommitdiffstats
path: root/src/vppinfra/vector_iwmmxt.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/vppinfra/vector_iwmmxt.h')
-rw-r--r--src/vppinfra/vector_iwmmxt.h149
1 files changed, 149 insertions, 0 deletions
diff --git a/src/vppinfra/vector_iwmmxt.h b/src/vppinfra/vector_iwmmxt.h
new file mode 100644
index 00000000..8e662045
--- /dev/null
+++ b/src/vppinfra/vector_iwmmxt.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ Copyright (c) 2008 Eliot Dresselhaus
+
+ Permission is hereby granted, free of charge, to any person obtaining
+ a copy of this software and associated documentation files (the
+ "Software"), to deal in the Software without restriction, including
+ without limitation the rights to use, copy, modify, merge, publish,
+ distribute, sublicense, and/or sell copies of the Software, and to
+ permit persons to whom the Software is furnished to do so, subject to
+ the following conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+#ifndef included_vector_iwmmxt_h
+#define included_vector_iwmmxt_h
+
+#include <vppinfra/error.h> /* for ASSERT */
+
+/* 64 bit interleaves. */
+always_inline u8x8
+u8x8_interleave_hi (u8x8 a, u8x8 b)
+{
+ return __builtin_arm_wunpckihb (a, b);
+}
+
+always_inline u8x8
+u8x8_interleave_lo (u8x8 a, u8x8 b)
+{
+ return __builtin_arm_wunpckilb (a, b);
+}
+
+always_inline u16x4
+u16x4_interleave_hi (u16x4 a, u16x4 b)
+{
+ return __builtin_arm_wunpckihh (a, b);
+}
+
+always_inline u16x4
+u16x4_interleave_lo (u16x4 a, u16x4 b)
+{
+ return __builtin_arm_wunpckilh (a, b);
+}
+
+always_inline u32x2
+u32x2_interleave_hi (u32x2 a, u32x2 b)
+{
+ return __builtin_arm_wunpckihw (a, b);
+}
+
+always_inline u32x2
+u32x2_interleave_lo (u32x2 a, u32x2 b)
+{
+ return __builtin_arm_wunpckilw (a, b);
+}
+
+always_inline u32x2
+u32x2_splat (u32 a)
+{
+ u32x2 x = { a };
+ x = u32x2_interleave_lo (x, x);
+ return x;
+}
+
+always_inline u16x4
+u16x4_splat (u16 a)
+{
+ u32 t = (u32) a | ((u32) a << 16);
+ return u32x2_splat (t);
+}
+
+always_inline u8x8
+u8x8_splat (u8 a)
+{
+ u32 t = (u32) a | ((u32) a << 8);
+ t |= t << 16;
+ return u32x2_splat (t);
+}
+
+#define i32x2_splat u32x2_splat
+#define i16x4_splat u16x4_splat
+#define i8x8_splat u8x8_splat
+
+/* 64 bit shifts. */
+
+/* As of July 2008 the __builtin_arm shifts cause gcc-4.3.1 to crash
+ so we use asm versions. */
+#define _(t,u,lr,f) \
+ always_inline t \
+ t##_##lr (t x, int i) \
+ { \
+ i16x4 y; \
+ asm (#f " %[y], %[x], %[shift]" \
+ : [y] "=y" (y) \
+ : [x] "y" (x), [shift] "i" (i * u)); \
+ return y; \
+ }
+
+_(u16x4, 1, shift_left, wsllhi)
+_(u32x2, 1, shift_left, wsllwi)
+_(u16x4, 1, shift_right, wsrlhi)
+_(u32x2, 1, shift_right, wsrlwi)
+_(i16x4, 1, shift_left, wsllhi)
+_(i32x2, 1, shift_left, wsllwi)
+_(i16x4, 1, shift_right, wsrahi) _(i32x2, 1, shift_right, wsrawi)
+/* Word shifts. */
+ _(u8x8, 8, word_shift_left, wslldi)
+_(u16x4, 16, word_shift_left, wslldi)
+_(u32x2, 32, word_shift_left, wslldi)
+_(u8x8, 8, word_shift_right, wsrldi)
+_(u16x4, 16, word_shift_right, wsrldi)
+_(u32x2, 32, word_shift_right, wsrldi)
+_(i8x8, 8, word_shift_left, wslldi)
+_(i16x4, 16, word_shift_left, wslldi)
+_(i32x2, 32, word_shift_left, wslldi)
+_(i8x8, 8, word_shift_right, wsrldi)
+_(i16x4, 16, word_shift_right, wsrldi) _(i32x2, 32, word_shift_right, wsrldi)
+#undef _
+#endif /* included_vector_iwmmxt_h */
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */