[Bug jit/96079] New: Unresolved atomic builtins

[Bug jit/96079] New: Unresolved atomic builtins

[bouanto at zoho dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96079

            Bug ID: 96079
           Summary: Unresolved atomic builtins
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: jit
          Assignee: dmalcolm at gcc dot gnu.org
          Reporter: bouanto at zoho dot com
  Target Milestone: ---

Created attachment 48836
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48836&action=edit
Reproducer

Hi.
When I try to use an atomic builtin, it gives an error like:

libgccjit.so: error: /tmp/libgccjit-1VoggR/fake.so: undefined symbol:
__atomic_store_n

I tried setting the arch with:

gcc_jit_context_add_command_line_option(ctxt, "-march=x86-64");


but it didn't change anything.

>From inspecting the source code of gcc, it seems it does not support that yet
because it does not call resolve_overloaded_builtin (I might be wrong, I don't
have much knowledge of the gcc codebase).

So, is there a way to do that currently or is it a bug?

Thanks.

[Bug jit/96079] Unresolved atomic builtins

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96079

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It seems like all these bugs with atomics in libgccjit could be a single bug
report.

[Bug jit/96079] Unresolved atomic builtins

[bouanto at zoho dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96079

Antoni <bouanto at zoho dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Antoni <bouanto at zoho dot com> ---
The actual call should be with a number instead of `n`, i.e.
`__atomic_store_4`.