[Bug target/65837] [arm-linux-gnueabihf] lto1 target specific builtin not available

[ramana at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65837

Ramana Radhakrishnan <ramana at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |ramana at gcc dot gnu.org

--- Comment #2 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Well,
> 
> /* Return the ARM builtin for CODE.  */
> 
> tree
> arm_builtin_decl (unsigned code, bool initialize_p ATTRIBUTE_UNUSED)
> {
>   if (code >= ARM_BUILTIN_MAX)
>     return error_mark_node;
> 
>   return arm_builtin_decls[code];
> }
> 
> and LTO passes in true for initialize_p ...
> 
> Thus it looks like arm is simply missing LTO support for builtins
> (eventually a new symptom here because of the way we stream compiler
> options now, with target attributes)


Well, we defined TARGET_BUILTIN_DECL a few years back for precisely supporting
LTO streaming of builtins - can you elaborate further what target support is
missing and for quite a while this was working ?

What did we miss when adding that support ?