[Issue 19573] usage of delegate literals at compile-time allocates closure at run-time

https://issues.dlang.org/show_bug.cgi?id=19573 Iain Buclaw <ibuclaw@gdcproject.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P1 |P3 --

April 25, 2023

Posted by RazvanN

Permalink

RazvanN

Permalink

https://issues.dlang.org/show_bug.cgi?id=19573

RazvanN <razvan.nitu1305@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |razvan.nitu1305@gmail.com
         Resolution|---                         |INVALID

--- Comment #1 from RazvanN <razvan.nitu1305@gmail.com> ---
No closure is allocated. What you are seeing is just an instantiation of isCallable with a delegate type (which is the correct type, given that the context of main is accessed). However if you look at the disassembly code:

000000000004271c <_Dmain>:
   4271c:       55                      push   %rbp
   4271d:       48 8b ec                mov    %rsp,%rbp
   42720:       48 83 ec 10             sub    $0x10,%rsp
   42724:       31 c0                   xor    %eax,%eax
   42726:       89 45 f8                mov    %eax,-0x8(%rbp)
   42729:       c9                      leaveq
   4272a:       c3                      retq


No closure allocated. Closing as invalid.

Please reopen if any other information that makes a compelling case for the bug report is presented.

--

Forums