From 27ffd14ae460b7a4f63e0438d50cd2ddd54de00d Mon Sep 17 00:00:00 2001
From: Richard Barnes <rbarnes@meta.com>
Date: Mon, 12 Jun 2023 15:07:08 -0700
Subject: [PATCH] Use C++17 [[fallthrough]] in faiss/utils/distances_simd.cpp
 (#2913)

Summary: Pull Request resolved: https://github.com/facebookresearch/faiss/pull/2913

Reviewed By: algoriddle

Differential Revision: D46603510

fbshipit-source-id: 374d530d79176ac553b40d5ad04bf83d4920b107
---
 faiss/utils/distances_simd.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/faiss/utils/distances_simd.cpp b/faiss/utils/distances_simd.cpp
index e885eb121f..953e5b7763 100644
--- a/faiss/utils/distances_simd.cpp
+++ b/faiss/utils/distances_simd.cpp
@@ -306,8 +306,10 @@ static inline __m128 masked_read(int d, const float* x) {
     switch (d) {
         case 3:
             buf[2] = x[2];
+            [[fallthrough]];
         case 2:
             buf[1] = x[1];
+            [[fallthrough]];
         case 1:
             buf[0] = x[0];
     }