1 files changed, 42 insertions, 0 deletions
diff --git a/test cases/common/147 simd/simd_avx2.c b/test cases/common/147 simd/simd_avx2.c
new file mode 100644
index 0000000..c79819b
--- /dev/null
+++ b/test cases/common/147 simd/simd_avx2.c
@@ -0,0 +1,42 @@
+#include<simdconfig.h>
+#include<simdfuncs.h>
+#include<stdint.h>
+
+/*
+ * FIXME add proper runtime detection for VS.
+ */
+
+#ifdef _MSC_VER
+#include<intrin.h>
+int avx2_available(void) {
+    return 0;
+}
+#else
+#include<immintrin.h>
+#include<cpuid.h>
+
+#if defined(__APPLE__)
+int avx2_available(void) { return 0; }
+#else
+int avx2_available(void) {
+    return __builtin_cpu_supports("avx2");
+}
+#endif
+#endif
+
+void increment_avx2(float arr[4]) {
+    double darr[4];
+    darr[0] = arr[0];
+    darr[1] = arr[1];
+    darr[2] = arr[2];
+    darr[3] = arr[3];
+    __m256d val = _mm256_loadu_pd(darr);
+    __m256d one = _mm256_set1_pd(1.0);
+    __m256d result = _mm256_add_pd(val, one);
+    _mm256_storeu_pd(darr, result);
+    one = _mm256_permute4x64_pd(one, 66); /* A no-op, just here to use AVX2. */
+    arr[0] = (float)darr[0];
+    arr[1] = (float)darr[1];
+    arr[2] = (float)darr[2];
+    arr[3] = (float)darr[3];
+}