http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54965



--- Comment #7 from Jan Hubicka <hubicka at ucw dot cz> 2012-10-23 14:03:06 UTC 
---

> you are using indirect function calls here, GCC in 4.6 is not smart enough

> to transform them to direct calls before inlining.  Inlining of

> always-inline indirect function calls is not going to work reliably.

> 

> Don't use always-inline or don't use indirect function calls to always-inline

> functions.  It makes always-inline function calls survive until IPA inlining

> where we seem to honor limits even though we say we should disregard them.



Yes, we do. It was actually your change to move always_inline function handling

out of the small functions inlining into inline_always_inline_functions.  The

motivation was that when done as part of small function inlining other inlining

may close cycles in the callgraph making always_inline inlining impossible.



In the presence of indirect calls, I do not think it is possible to honnor

always_inline completely because of the ordering issue.



Honza

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