C backend: use ++ instead of += for airMemset

It does the same thing but has fewer bytes in the output.
ziglang · Apr 25, 2023 · b1306a3 · b1306a3
1 parent 2c36b9a
commit b1306a3
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/src/codegen/c.zig b/src/codegen/c.zig
@@ -6261,10 +6261,8 @@ fn airMemset(f: *Function, inst: Air.Inst.Index, safety: bool) !CValue {
             },
             .Many, .C => unreachable,
         }
-        try writer.writeAll("; ");
+        try writer.writeAll("; ++");
         try f.writeCValue(writer, index, .Other);
-        try writer.writeAll(" += ");
-        try f.object.dg.renderValue(writer, Type.usize, Value.one, .Other);
         try writer.writeAll(") ((");
         try f.renderType(writer, elem_ptr_ty);
         try writer.writeByte(')');