From: Daniel Kutenin <kutdanila@yandex.ru>
Date: Mon, 13 Jun 2022 08:16:24 +0000 (+0100)
Subject: Fix big endian ARM NEON path
X-Git-Tag: v1.5.4^2~201^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F3160%2Fhead;p=thirdparty%2Fzstd.git

Fix big endian ARM NEON path

It is not using the NEON acceleration but the bit grouping was applied
---

diff --git a/lib/compress/zstd_lazy.c b/lib/compress/zstd_lazy.c
index 6f8d11e14..e54b43c0c 100644
--- a/lib/compress/zstd_lazy.c
+++ b/lib/compress/zstd_lazy.c
@@ -965,6 +965,10 @@ ZSTD_row_matchMaskGroupWidth(const U32 rowEntries)
     assert(rowEntries <= ZSTD_ROW_HASH_MAX_ENTRIES);
     (void)rowEntries;
 #if defined(ZSTD_ARCH_ARM_NEON)
+    /* NEON path only works for little endian */
+    if (!MEM_isLittleEndian()) {
+        return 1;
+    }
     if (rowEntries == 16) {
         return 4;
     }