Hi,
I see that the implementation of LANG_HOOKS_GET_CALLEE_FNDECL in Java
always returns NULL (at least for the time being).
static tree
java_get_callee_fndecl (tree call_expr)
{
tree method, table, element, atable_methods;
HOST_WIDE_INT index;
/* FIXME: This is disabled because we end up passing calls through
the PLT, and we do NOT want to do that. */
return NULL;
:
:
Is anybody planning to fix this? If not, I'm thinking about removing
this language hook. The reason is not just clean up. Rather it is
because I need to change the prototype of get_callee_fndecl and
LANG_HOOKS_GET_CALLEE_FNDECL.. Currently, fold_ternary has the
following call tree.
fold_ternary
get_callee_fndecl
java_get_callee_fndecl
If I change fold_ternary to take components of CALL_EXPR like the
address expression of CALL_EXPR and the argument list, instead of
CALL_EXPR itself, I would have to change java_get_callee_fndecl to
take the first operand of a CALL_EXPR, instead of a CALL_EXPR.
It's not that the change is so involved, but it doesn't make much
sense to keep something dead up to date.
In other words, when I posted the following patch
http://gcc.gnu.org/ml/gcc-patches/2005-03/msg02038.html
Roger Sayle requested to keep the call to get_callee_fndecl so that we
can "fold" the first operand of a CALL_EXPR to a FUNCTION_DECL.
FYI, the above FIXME comes from
http://gcc.gnu.org/ml/java-patches/2004-q2/msg00083.html
Kazu Hirata
