compiler-rt: remove len == 1 memcpy branch

ziglang · Nov 21, 2024 · 8688b0a · 8688b0a
1 parent a09acd2
commit 8688b0a
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/lib/compiler_rt/memcpy.zig b/lib/compiler_rt/memcpy.zig
@@ -51,9 +51,10 @@ fn memcpy_fast(noalias dest: ?[*]u8, noalias src: ?[*]const u8, len: usize) call
     if (len < 16) {
         if (len < 4) {
             if (len == 0) return dest;
+            const a = len & 2;
+            const b = a / 2;
             dest.?[0] = src.?[0];
-            if (len == 1) return dest;
-            dest.?[1] = src.?[1];
+            dest.?[b] = src.?[b];
             dest.?[len - 1] = src.?[len - 1];
             return dest;
         }