From: DRC <information@libjpeg-turbo.org>
Date: Fri, 1 Feb 2019 07:16:13 +0000 (-0600)
Subject: MMI: Fix unaligned decomp. perf. for 32-bit PFs
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bdec9958390ce3cf2e30b62e5e0328c26af97c7b;p=libjpeg-turbo

MMI: Fix unaligned decomp. perf. for 32-bit PFs

(Oversight from db84125fcb05bbc48430b53d45b89392a8f3609e)
---

diff --git a/simd/loongson/jdcolext-mmi.c b/simd/loongson/jdcolext-mmi.c
index 982fa76..8a159ef 100644
--- a/simd/loongson/jdcolext-mmi.c
+++ b/simd/loongson/jdcolext-mmi.c
@@ -341,10 +341,17 @@ void jsimd_ycc_rgb_convert_mmi(JDIMENSION out_width, JSAMPIMAGE input_buf,
       mmC = _mm_unpacklo_pi32(mmC, mmG);      /* (04 14 24 34 05 15 25 35) */
 
       if (num_cols >= 8) {
-        _mm_store_si64((__m64 *)outptr, mmA);
-        _mm_store_si64((__m64 *)(outptr + 8), mmD);
-        _mm_store_si64((__m64 *)(outptr + 16), mmC);
-        _mm_store_si64((__m64 *)(outptr + 24), mmH);
+        if (!(((long)outptr) & 7)) {
+          _mm_store_si64((__m64 *)outptr, mmA);
+          _mm_store_si64((__m64 *)(outptr + 8), mmD);
+          _mm_store_si64((__m64 *)(outptr + 16), mmC);
+          _mm_store_si64((__m64 *)(outptr + 24), mmH);
+        } else {
+          _mm_storeu_si64((__m64 *)outptr, mmA);
+          _mm_storeu_si64((__m64 *)(outptr + 8), mmD);
+          _mm_storeu_si64((__m64 *)(outptr + 16), mmC);
+          _mm_storeu_si64((__m64 *)(outptr + 24), mmH);
+        }
         outptr += RGB_PIXELSIZE * 8;
       } else {
         col = num_cols;