[Bug middle-end/93926] [10 Regression] ICE: verify_cgraph_node failed (error: malloc attribute should be used for a function that returns a pointer)

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93926

--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot com> ---
Some level of permissiveness for built-in functions may be historical, 
arising from support for pre-C90 headers without prototypes or with 
nonstandard types; that level of permissiveness is probably no longer 
needed, headers should use the standard types now (modulo e.g. missing 
restrict, but qualifiers on the type of an argument, as opposed to 
qualifiers on the type pointed to by a pointer argument, don't affect type 
compatibility for the function type).  However, a certain amount of 
permissiveness is still needed for cases where the built-in function uses 
a typedef such as FILE for which the compiler does not know the underlying 
type.