[Bug tree-optimization/43611] [4.5 Regression] ICE: SIGSEGV with -fipa-cp-clone -fkeep-inline-functions

[jason at redhat dot com]

------- Comment #4 from jason at redhat dot com  2010-04-01 15:55 -------
Subject: Re:  [4.5 Regression] ICE: SIGSEGV with
 -fipa-cp-clone -fkeep-inline-functions

On 04/01/2010 09:39 AM, rguenth at gcc dot gnu dot org wrote:
> The issue seems to be the C++ frontend marking inline functions needed
> at cp/semantics.c:3452 while the middle-end should already take care
> of that in cgraph_decide_is_function_needed.

Another example of why I've been thinking about reworking all the C++ 
front end linkage code to play better with cgraph...

> The following "fixes" it, but arguably the bug must then be latent
> with dllexport.

The patch looks OK since cgraph_decide_is_function_needed handles 
flag_keep_inline_functions.

I'm not sure why doing this here would be a problem, however; 
mark_needed ends up calling cgraph_mark_needed_node, which really ought 
to be a reasonable way to indicate that a function is needed...

Jason


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43611