> which has the desited effect of disabling unit-at-a-time, but
> runs aground in cgraph_expand_function() with a segfault,
> when it attempts to call lang_hooks.callgraph.expand_function().
>
> It seems that GCC is handling lang_hooks.callgraph.expand_function
> in an inconsistent fashion. Is a null value for expand_function
> meaningful? If it is, then what is the fix for cgraph_expand_function()?
>
I have found another similar case.
lang_hooks.callgraph.analyze_expr in gcc/gcc/cgraphunit.c
490 if (lang_hooks.callgraph.analyze_expr)
491 return lang_hooks.callgraph.analyze_expr (tp, walk_subtrees,
492 data);
but in another part of this file
517 if ((unsigned int) TREE_CODE (t) >= LAST_AND_UNUSED_TREE_CODE)
518 return lang_hooks.callgraph.analyze_expr (tp,
walk_subtrees, data);
I am not sure about the run-time features of this piece of code and
just make this conclusion from my point of view of C language. Am I
missing something? Any comments are highly appreciated!
--
Dueway
