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-rw-r--r--src/cpu/kernels/lut/generic/neon/u8.cpp408
1 files changed, 408 insertions, 0 deletions
diff --git a/src/cpu/kernels/lut/generic/neon/u8.cpp b/src/cpu/kernels/lut/generic/neon/u8.cpp
new file mode 100644
index 0000000000..5516f5b33d
--- /dev/null
+++ b/src/cpu/kernels/lut/generic/neon/u8.cpp
@@ -0,0 +1,408 @@
+/*
+ * Copyright (c) 2022-2023 Arm Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * 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.
+ */
+
+#include "src/cpu/kernels/lut/list.h"
+
+namespace arm_compute
+{
+namespace cpu
+{
+
+#ifdef __aarch64__
+
+void lut_u8_neon(
+ const uint8_t *table, size_t num_strings, size_t string_length, const uint8_t *const *input, uint8_t *const *output)
+{
+ __asm__ __volatile__("ldr q16, [%x[table], #0x0]\n"
+ "ldr q17, [%x[table], #0x10]\n"
+ "mov x23, #0x0\n"
+ "ldr q18, [%x[table], #0x20]\n"
+ "ldr q19, [%x[table], #0x30]\n"
+ "ldr q20, [%x[table], #0x40]\n"
+ "ldr q21, [%x[table], #0x50]\n"
+ "ldr q22, [%x[table], #0x60]\n"
+ "ldr q23, [%x[table], #0x70]\n"
+ "ldr q24, [%x[table], #0x80]\n"
+ "ldr q25, [%x[table], #0x90]\n"
+ "ldr q26, [%x[table], #0xa0]\n"
+ "ldr q27, [%x[table], #0xb0]\n"
+ "ldr q28, [%x[table], #0xc0]\n"
+ "ldr q29, [%x[table], #0xd0]\n"
+ "ldr q30, [%x[table], #0xe0]\n"
+ "ldr q31, [%x[table], #0xf0]\n"
+ "1:" // string loop
+ "ldr x22, [%x[input], x23, LSL #0x3]\n"
+ "ldr x21, [%x[output], x23, LSL #0x3]\n"
+ "movi v11.16b, #0x40\n"
+ "movi v10.16b, #0x80\n"
+ "movi v9.16b, #0xc0\n"
+ "mov x20, %x[string_length]\n"
+ "2:" // 4 rounds: width loop
+ "cmp x20, #0x30\n"
+ "bge 27f\n"
+ "tbz x20, #5, 10f\n"
+ "ld1 { v8.16b }, [x22], #0x10\n"
+ "ld1 { v13.16b }, [x22], #0x10\n"
+ "tbz x20, #3, 6f\n"
+ "ldr d12, [x22], #0x8\n"
+ "tbz x20, #2, 4f\n"
+ "ld1 { v12.s }[2], [x22], #0x4\n"
+ "tbz x20, #1, 3f\n"
+ "ld1 { v12.h }[6], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[14], [x22]\n"
+ "b 26f\n"
+ "3:" // 4 rounds: Partial load: partial_1_44
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[12], [x22]\n"
+ "b 26f\n"
+ "4:" // 4 rounds: Partial load: partial_2_40
+ "tbz x20, #1, 5f\n"
+ "ld1 { v12.h }[4], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[10], [x22]\n"
+ "b 26f\n"
+ "5:" // 4 rounds: Partial load: partial_1_40
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[8], [x22]\n"
+ "b 26f\n"
+ "6:" // 4 rounds: Partial load: partial_4_32
+ "tbz x20, #2, 8f\n"
+ "ldr s12, [x22], #0x4\n"
+ "tbz x20, #1, 7f\n"
+ "ld1 { v12.h }[2], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[6], [x22]\n"
+ "b 26f\n"
+ "7:" // 4 rounds: Partial load: partial_1_36
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[4], [x22]\n"
+ "b 26f\n"
+ "8:" // 4 rounds: Partial load: partial_2_32
+ "tbz x20, #1, 9f\n"
+ "ldr h12, [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v12.b }[2], [x22]\n"
+ "b 26f\n"
+ "9:" // 4 rounds: Partial load: partial_1_32
+ "tbz x20, #0, 26f\n"
+ "ldr b12, [x22, #0x0]\n"
+ "b 26f\n"
+ "10:" // 4 rounds: Partial load: partial_16_0
+ "tbz x20, #4, 18f\n"
+ "ld1 { v8.16b }, [x22], #0x10\n"
+ "tbz x20, #3, 14f\n"
+ "ldr d13, [x22], #0x8\n"
+ "tbz x20, #2, 12f\n"
+ "ld1 { v13.s }[2], [x22], #0x4\n"
+ "tbz x20, #1, 11f\n"
+ "ld1 { v13.h }[6], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[14], [x22]\n"
+ "b 26f\n"
+ "11:" // 4 rounds: Partial load: partial_1_28
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[12], [x22]\n"
+ "b 26f\n"
+ "12:" // 4 rounds: Partial load: partial_2_24
+ "tbz x20, #1, 13f\n"
+ "ld1 { v13.h }[4], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[10], [x22]\n"
+ "b 26f\n"
+ "13:" // 4 rounds: Partial load: partial_1_24
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[8], [x22]\n"
+ "b 26f\n"
+ "14:" // 4 rounds: Partial load: partial_4_16
+ "tbz x20, #2, 16f\n"
+ "ldr s13, [x22], #0x4\n"
+ "tbz x20, #1, 15f\n"
+ "ld1 { v13.h }[2], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[6], [x22]\n"
+ "b 26f\n"
+ "15:" // 4 rounds: Partial load: partial_1_20
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[4], [x22]\n"
+ "b 26f\n"
+ "16:" // 4 rounds: Partial load: partial_2_16
+ "tbz x20, #1, 17f\n"
+ "ldr h13, [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v13.b }[2], [x22]\n"
+ "b 26f\n"
+ "17:" // 4 rounds: Partial load: partial_1_16
+ "tbz x20, #0, 26f\n"
+ "ldr b13, [x22, #0x0]\n"
+ "b 26f\n"
+ "18:" // 4 rounds: Partial load: partial_8_0
+ "tbz x20, #3, 22f\n"
+ "ldr d8, [x22], #0x8\n"
+ "tbz x20, #2, 20f\n"
+ "ld1 { v8.s }[2], [x22], #0x4\n"
+ "tbz x20, #1, 19f\n"
+ "ld1 { v8.h }[6], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[14], [x22]\n"
+ "b 26f\n"
+ "19:" // 4 rounds: Partial load: partial_1_12
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[12], [x22]\n"
+ "b 26f\n"
+ "20:" // 4 rounds: Partial load: partial_2_8
+ "tbz x20, #1, 21f\n"
+ "ld1 { v8.h }[4], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[10], [x22]\n"
+ "b 26f\n"
+ "21:" // 4 rounds: Partial load: partial_1_8
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[8], [x22]\n"
+ "b 26f\n"
+ "22:" // 4 rounds: Partial load: partial_4_0
+ "tbz x20, #2, 24f\n"
+ "ldr s8, [x22], #0x4\n"
+ "tbz x20, #1, 23f\n"
+ "ld1 { v8.h }[2], [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[6], [x22]\n"
+ "b 26f\n"
+ "23:" // 4 rounds: Partial load: partial_1_4
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[4], [x22]\n"
+ "b 26f\n"
+ "24:" // 4 rounds: Partial load: partial_2_0
+ "tbz x20, #1, 25f\n"
+ "ldr h8, [x22], #0x2\n"
+ "tbz x20, #0, 26f\n"
+ "ld1 { v8.b }[2], [x22]\n"
+ "b 26f\n"
+ "25:" // 4 rounds: Partial load: partial_1_0
+ "ldr b8, [x22, #0x0]\n"
+ "26:" // 4 rounds: Partial load: Done
+ "b 28f\n"
+ "27:" // 4 rounds: Full load
+ "ldr q8, [x22, #0x0]\n"
+ "ldr q13, [x22, #0x10]\n"
+ "ldr q12, [x22, #0x20]\n"
+ "add x22, x22, #0x30\n"
+ "28:" // 4 rounds: Load done
+ "sub v0.16b, v8.16b, v11.16b\n"
+ "sub v7.16b, v8.16b, v10.16b\n"
+ "tbl v0.16b, { v20.16b, v21.16b, v22.16b, v23.16b }, v0.16b\n"
+ "sub v6.16b, v8.16b, v9.16b\n"
+ "sub v5.16b, v13.16b, v11.16b\n"
+ "tbl v8.16b, { v16.16b, v17.16b, v18.16b, v19.16b }, v8.16b\n"
+ "sub v4.16b, v13.16b, v10.16b\n"
+ "sub v3.16b, v13.16b, v9.16b\n"
+ "tbl v7.16b, { v24.16b, v25.16b, v26.16b, v27.16b }, v7.16b\n"
+ "sub v2.16b, v12.16b, v11.16b\n"
+ "sub v1.16b, v12.16b, v10.16b\n"
+ "tbl v6.16b, { v28.16b, v29.16b, v30.16b, v31.16b }, v6.16b\n"
+ "tbl v13.16b, { v16.16b, v17.16b, v18.16b, v19.16b }, v13.16b\n"
+ "tbl v5.16b, { v20.16b, v21.16b, v22.16b, v23.16b }, v5.16b\n"
+ "orr v8.16b, v8.16b, v0.16b\n"
+ "sub v0.16b, v12.16b, v9.16b\n"
+ "tbl v4.16b, { v24.16b, v25.16b, v26.16b, v27.16b }, v4.16b\n"
+ "tbl v3.16b, { v28.16b, v29.16b, v30.16b, v31.16b }, v3.16b\n"
+ "tbl v12.16b, { v16.16b, v17.16b, v18.16b, v19.16b }, v12.16b\n"
+ "tbl v2.16b, { v20.16b, v21.16b, v22.16b, v23.16b }, v2.16b\n"
+ "orr v7.16b, v7.16b, v6.16b\n"
+ "tbl v1.16b, { v24.16b, v25.16b, v26.16b, v27.16b }, v1.16b\n"
+ "tbl v0.16b, { v28.16b, v29.16b, v30.16b, v31.16b }, v0.16b\n"
+ "orr v13.16b, v13.16b, v5.16b\n"
+ "orr v4.16b, v4.16b, v3.16b\n"
+ "orr v12.16b, v12.16b, v2.16b\n"
+ "cmp x20, #0x30\n"
+ "orr v1.16b, v1.16b, v0.16b\n"
+ "orr v8.16b, v8.16b, v7.16b\n"
+ "orr v13.16b, v13.16b, v4.16b\n"
+ "orr v12.16b, v12.16b, v1.16b\n"
+ "bge 53f\n"
+ "tbz x20, #5, 36f\n"
+ "st1 { v8.16b }, [x21], #0x10\n"
+ "st1 { v13.16b }, [x21], #0x10\n"
+ "tbz x20, #3, 32f\n"
+ "str d12, [x21], #0x8\n"
+ "tbz x20, #2, 30f\n"
+ "st1 { v12.s }[2], [x21], #0x4\n"
+ "tbz x20, #1, 29f\n"
+ "st1 { v12.h }[6], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[14], [x21]\n"
+ "b 52f\n"
+ "29:" // 4 rounds: Partial writeback: partial_1_44
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[12], [x21]\n"
+ "b 52f\n"
+ "30:" // 4 rounds: Partial writeback: partial_2_40
+ "tbz x20, #1, 31f\n"
+ "st1 { v12.h }[4], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[10], [x21]\n"
+ "b 52f\n"
+ "31:" // 4 rounds: Partial writeback: partial_1_40
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[8], [x21]\n"
+ "b 52f\n"
+ "32:" // 4 rounds: Partial writeback: partial_4_32
+ "tbz x20, #2, 34f\n"
+ "str s12, [x21], #0x4\n"
+ "tbz x20, #1, 33f\n"
+ "st1 { v12.h }[2], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[6], [x21]\n"
+ "b 52f\n"
+ "33:" // 4 rounds: Partial writeback: partial_1_36
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[4], [x21]\n"
+ "b 52f\n"
+ "34:" // 4 rounds: Partial writeback: partial_2_32
+ "tbz x20, #1, 35f\n"
+ "str h12, [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v12.b }[2], [x21]\n"
+ "b 52f\n"
+ "35:" // 4 rounds: Partial writeback: partial_1_32
+ "tbz x20, #0, 52f\n"
+ "str b12, [x21, #0x0]\n"
+ "b 52f\n"
+ "36:" // 4 rounds: Partial writeback: partial_16_0
+ "tbz x20, #4, 44f\n"
+ "st1 { v8.16b }, [x21], #0x10\n"
+ "tbz x20, #3, 40f\n"
+ "str d13, [x21], #0x8\n"
+ "tbz x20, #2, 38f\n"
+ "st1 { v13.s }[2], [x21], #0x4\n"
+ "tbz x20, #1, 37f\n"
+ "st1 { v13.h }[6], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[14], [x21]\n"
+ "b 52f\n"
+ "37:" // 4 rounds: Partial writeback: partial_1_28
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[12], [x21]\n"
+ "b 52f\n"
+ "38:" // 4 rounds: Partial writeback: partial_2_24
+ "tbz x20, #1, 39f\n"
+ "st1 { v13.h }[4], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[10], [x21]\n"
+ "b 52f\n"
+ "39:" // 4 rounds: Partial writeback: partial_1_24
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[8], [x21]\n"
+ "b 52f\n"
+ "40:" // 4 rounds: Partial writeback: partial_4_16
+ "tbz x20, #2, 42f\n"
+ "str s13, [x21], #0x4\n"
+ "tbz x20, #1, 41f\n"
+ "st1 { v13.h }[2], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[6], [x21]\n"
+ "b 52f\n"
+ "41:" // 4 rounds: Partial writeback: partial_1_20
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[4], [x21]\n"
+ "b 52f\n"
+ "42:" // 4 rounds: Partial writeback: partial_2_16
+ "tbz x20, #1, 43f\n"
+ "str h13, [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v13.b }[2], [x21]\n"
+ "b 52f\n"
+ "43:" // 4 rounds: Partial writeback: partial_1_16
+ "tbz x20, #0, 52f\n"
+ "str b13, [x21, #0x0]\n"
+ "b 52f\n"
+ "44:" // 4 rounds: Partial writeback: partial_8_0
+ "tbz x20, #3, 48f\n"
+ "str d8, [x21], #0x8\n"
+ "tbz x20, #2, 46f\n"
+ "st1 { v8.s }[2], [x21], #0x4\n"
+ "tbz x20, #1, 45f\n"
+ "st1 { v8.h }[6], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[14], [x21]\n"
+ "b 52f\n"
+ "45:" // 4 rounds: Partial writeback: partial_1_12
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[12], [x21]\n"
+ "b 52f\n"
+ "46:" // 4 rounds: Partial writeback: partial_2_8
+ "tbz x20, #1, 47f\n"
+ "st1 { v8.h }[4], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[10], [x21]\n"
+ "b 52f\n"
+ "47:" // 4 rounds: Partial writeback: partial_1_8
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[8], [x21]\n"
+ "b 52f\n"
+ "48:" // 4 rounds: Partial writeback: partial_4_0
+ "tbz x20, #2, 50f\n"
+ "str s8, [x21], #0x4\n"
+ "tbz x20, #1, 49f\n"
+ "st1 { v8.h }[2], [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[6], [x21]\n"
+ "b 52f\n"
+ "49:" // 4 rounds: Partial writeback: partial_1_4
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[4], [x21]\n"
+ "b 52f\n"
+ "50:" // 4 rounds: Partial writeback: partial_2_0
+ "tbz x20, #1, 51f\n"
+ "str h8, [x21], #0x2\n"
+ "tbz x20, #0, 52f\n"
+ "st1 { v8.b }[2], [x21]\n"
+ "b 52f\n"
+ "51:" // 4 rounds: Partial writeback: partial_1_0
+ "str b8, [x21, #0x0]\n"
+ "52:" // 4 rounds: Partial writeback: Done
+ "b 54f\n"
+ "53:" // 4 rounds: Full writeback
+ "str q8, [x21, #0x0]\n"
+ "str q13, [x21, #0x10]\n"
+ "str q12, [x21, #0x20]\n"
+ "add x21, x21, #0x30\n"
+ "54:" // 4 rounds: Writeback done
+ "subs x20, x20, #0x30\n"
+ "bgt 2b\n"
+ "add x23, x23, #0x1\n"
+ "cmp x23, %x[num_strings]\n"
+ "bne 1b\n"
+ :
+ : [input] "r"(input), [num_strings] "r"(num_strings), [output] "r"(output),
+ [string_length] "r"(string_length), [table] "r"(table)
+ : "cc", "memory", "v0", "v1", "v2", "v3", "v4", "v5", "v6", "v7", "v8", "v9", "v10", "v11",
+ "v12", "v13", "v16", "v17", "v18", "v19", "v20", "v21", "v22", "v23", "v24", "v25", "v26",
+ "v27", "v28", "v29", "v30", "v31", "x20", "x21", "x22", "x23");
+}
+
+#endif // __aarch64__
+
+} // namespace cpu
+} // namespace arm_compute