[vcpkg-ci-highway] New ci port (#51363)

scripts/test_ports/vcpkg-ci-highway/portfile.cmake

@@ -0,0 +1,4 @@
+set(VCPKG_POLICY_EMPTY_PACKAGE enabled)
+
+vcpkg_cmake_configure(SOURCE_PATH "${CURRENT_PORT_DIR}/project")
+vcpkg_cmake_build()

scripts/test_ports/vcpkg-ci-highway/project/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.15)
+project(vcpkg_ci_highway)
+
+set(CMAKE_CXX_STANDARD 17)
+
+find_package(hwy CONFIG REQUIRED)
+
+# Dynamic Dispatch
+add_executable(vcpkg_ci_highway main.cpp scale.cpp scale.hpp)
+target_include_directories(vcpkg_ci_highway PRIVATE ${CMAKE_CURRENT_LIST_DIR})
+target_link_libraries(vcpkg_ci_highway PRIVATE hwy::hwy)
+
+# Static Dispatch
+add_executable(vcpkg_ci_highway_static main.cpp scale.cpp scale.hpp)
+target_include_directories(vcpkg_ci_highway_static PRIVATE ${CMAKE_CURRENT_LIST_DIR})
+target_link_libraries(vcpkg_ci_highway_static PRIVATE hwy::hwy)
+target_compile_definitions(vcpkg_ci_highway_static PRIVATE HWY_COMPILE_ONLY_STATIC)

scripts/test_ports/vcpkg-ci-highway/project/main.cpp

@@ -0,0 +1,21 @@
+#include <random>
+#include <vector>
+#include "scale.hpp"
+
+std::vector<float> generate_random_floats(size_t n) {
+    std::vector<float> data(n);
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_real_distribution<float> dist(0.0f, 1.0f);
+    for (auto &x : data) {
+        x = dist(gen);
+    }
+    return data;
+}
+
+int main() {
+    std::vector<float> src = generate_random_floats(1000);
+    std::vector<float> dst(src.size());
+    scale(dst.data(), src.data(), src.size(), 0.75f);
+    return 0;
+}

scripts/test_ports/vcpkg-ci-highway/project/scale.cpp

@@ -0,0 +1,51 @@
+#undef HWY_TARGET_INCLUDE
+#define HWY_TARGET_INCLUDE "scale.cpp"
+#include "hwy/foreach_target.h"
+#include "hwy/highway.h"
+
+HWY_BEFORE_NAMESPACE();
+namespace HWY_NAMESPACE {
+
+namespace hn = hwy::HWY_NAMESPACE;
+
+void scale(float *HWY_RESTRICT dst, const float *HWY_RESTRICT src, size_t size, float factor) {
+    size_t i = 0;
+
+    constexpr hn::ScalableTag<float> d;
+    const auto vf = hn::Set(d, factor);
+    const size_t N = hn::Lanes(d);
+
+    for (; i + 4 * N <= size; i += 4 * N) {
+        auto x0 = hn::Load(d, src + i + 0 * N);
+        auto x1 = hn::Load(d, src + i + 1 * N);
+        auto x2 = hn::Load(d, src + i + 2 * N);
+        auto x3 = hn::Load(d, src + i + 3 * N);
+        hn::Store(hn::Mul(x0, vf), d, dst + i + 0 * N);
+        hn::Store(hn::Mul(x1, vf), d, dst + i + 1 * N);
+        hn::Store(hn::Mul(x2, vf), d, dst + i + 2 * N);
+        hn::Store(hn::Mul(x3, vf), d, dst + i + 3 * N);
+    }
+
+    for (; i + N <= size; i += N) {
+        auto x = hn::Load(d, src + i);
+        hn::Store(hn::Mul(x, vf), d, dst + i);
+    }
+
+    for (; i < size; ++i) {
+        dst[i] = src[i] * factor;
+    }
+}
+
+}  // namespace HWY_NAMESPACE
+HWY_AFTER_NAMESPACE();
+
+#if HWY_ONCE
+
+#include "scale.hpp"
+
+HWY_EXPORT(scale);
+void scale(float *HWY_RESTRICT dst, const float *HWY_RESTRICT src, size_t size, float factor) {
+    HWY_DYNAMIC_DISPATCH(scale)(dst, src, size, factor);
+}
+
+#endif  // HWY_ONCE

scripts/test_ports/vcpkg-ci-highway/project/scale.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <cstddef>
+
+#if !defined(HWY_RESTRICT)
+#if defined(_MSC_VER)
+#define HWY_RESTRICT __restrict
+#else
+#define HWY_RESTRICT __restrict__
+#endif
+#endif
+
+void scale(float *HWY_RESTRICT dst, const float *HWY_RESTRICT src, size_t size, float factor);

scripts/test_ports/vcpkg-ci-highway/vcpkg.json

@@ -0,0 +1,12 @@
+{
+  "name": "vcpkg-ci-highway",
+  "version-string": "ci",
+  "description": "Validates highway",
+  "dependencies": [
+    "highway",
+    {
+      "name": "vcpkg-cmake",
+      "host": true
+    }
+  ]
+}