Move local ids generation code to shared directory

Change-Id: I5b0486ceae8d67d0c1d1be56a756c102226d7e2a
Signed-off-by: Zbigniew Zdanowicz <zbigniew.zdanowicz@intel.com>

shared/source/helpers/uint16_avx2.h

@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2017-2020 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+#pragma once
+#include "shared/source/helpers/aligned_memory.h"
+#include "shared/source/helpers/debug_helpers.h"
+
+#include <cstdint>
+#include <immintrin.h>
+
+namespace NEO {
+
+#if __AVX2__
+struct uint16x16_t {
+    enum { numChannels = 16 };
+
+    __m256i value;
+
+    uint16x16_t() {
+        value = _mm256_setzero_si256();
+    }
+
+    uint16x16_t(__m256i value) : value(value) {
+    }
+
+    uint16x16_t(uint16_t a) {
+        value = _mm256_set1_epi16(a); //AVX
+    }
+
+    explicit uint16x16_t(const void *alignedPtr) {
+        load(alignedPtr);
+    }
+
+    inline uint16_t get(unsigned int element) {
+        DEBUG_BREAK_IF(element >= numChannels);
+        return reinterpret_cast<uint16_t *>(&value)[element];
+    }
+
+    static inline uint16x16_t zero() {
+        return uint16x16_t(static_cast<uint16_t>(0u));
+    }
+
+    static inline uint16x16_t one() {
+        return uint16x16_t(static_cast<uint16_t>(1u));
+    }
+
+    static inline uint16x16_t mask() {
+        return uint16x16_t(static_cast<uint16_t>(0xffffu));
+    }
+
+    inline void load(const void *alignedPtr) {
+        DEBUG_BREAK_IF(!isAligned<32>(alignedPtr));
+        value = _mm256_load_si256(reinterpret_cast<const __m256i *>(alignedPtr)); //AVX
+    }
+
+    inline void loadUnaligned(const void *ptr) {
+        value = _mm256_loadu_si256(reinterpret_cast<const __m256i *>(ptr)); //AVX
+    }
+
+    inline void store(void *alignedPtr) {
+        DEBUG_BREAK_IF(!isAligned<32>(alignedPtr));
+        _mm256_store_si256(reinterpret_cast<__m256i *>(alignedPtr), value); //AVX
+    }
+
+    inline void storeUnaligned(void *ptr) {
+        _mm256_storeu_si256(reinterpret_cast<__m256i *>(ptr), value); //AVX
+    }
+
+    inline operator bool() const {
+        return _mm256_testz_si256(value, mask().value) ? false : true; //AVX
+    }
+
+    inline uint16x16_t &operator-=(const uint16x16_t &a) {
+        value = _mm256_sub_epi16(value, a.value); //AVX2
+        return *this;
+    }
+
+    inline uint16x16_t &operator+=(const uint16x16_t &a) {
+        value = _mm256_add_epi16(value, a.value); //AVX2
+        return *this;
+    }
+
+    inline friend uint16x16_t operator>=(const uint16x16_t &a, const uint16x16_t &b) {
+        uint16x16_t result;
+        result.value =
+            _mm256_xor_si256(mask().value,
+                             _mm256_cmpgt_epi16(b.value, a.value)); //AVX2
+        return result;
+    }
+
+    inline friend uint16x16_t operator&&(const uint16x16_t &a, const uint16x16_t &b) {
+        uint16x16_t result;
+        result.value = _mm256_and_si256(a.value, b.value); //AVX2
+        return result;
+    }
+
+    // NOTE: uint16x16_t::blend behaves like mask ? a : b
+    inline friend uint16x16_t blend(const uint16x16_t &a, const uint16x16_t &b, const uint16x16_t &mask) {
+        uint16x16_t result;
+
+        // Have to swap arguments to get intended calling semantics
+        result.value =
+            _mm256_blendv_epi8(b.value, a.value, mask.value); //AVX2
+        return result;
+    }
+};
+#endif // __AVX2__
+} // namespace NEO