[CHUNKMEMSET_SAFE] Precalculate "from".

zlib-ng · Jun 11, 2021 · a89f3b9 · a89f3b9
1 parent 4499d47
commit a89f3b9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/chunkset_tpl.h b/chunkset_tpl.h
@@ -162,9 +162,9 @@ Z_INTERNAL uint8_t* CHUNKMEMSET(uint8_t *out, unsigned dist, unsigned len) {
 
 Z_INTERNAL uint8_t* CHUNKMEMSET_SAFE(uint8_t *out, unsigned dist, unsigned len, unsigned left) {
     if (left < (unsigned)(3 * sizeof(chunk_t))) {
+        uint8_t *from = out - dist;
         while (len > 0) {
-            *out = *(out - dist);
-            out++;
+            *out++ = *from++;
             --len;
         }
         return out;