https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112830
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
@defmac POINTERS_EXTEND_UNSIGNED
A C expression that determines how pointers should be extended from
@code{ptr_mode} to either @code{Pmode} or @code{word_mode}. It is
greater than zero if pointers should be zero-extended, zero if they
should be sign-extended, and negative if some other sort of conversion
is needed. In the last case, the extension is done by the target's
@code{ptr_extend} instruction.
You need not define this macro if the @code{ptr_mode}, @code{Pmode}
and @code{word_mode} are all the same width.
@end defmac
so you _need_ to define POINTERS_EXTEND_UNSIGNED given that obviously
the modes are not the same. The other possibility is that the caller
passes in the wrong modes for the address-space in question or it uses
the wrong function - the function is for converting of ptr_mode <-> Pmode
of the _same_ address-space, but guessing from the source we are converting
from different address-spaces.
