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[Bug tree-optimization/51737] [4.6 Regression] g++ crashes (internal compiler error: Segmentation fault) when compiling quickbook
- From: "hubicka at ucw dot cz" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 29 Feb 2012 15:01:31 +0000
- Subject: [Bug tree-optimization/51737] [4.6 Regression] g++ crashes (internal compiler error: Segmentation fault) when compiling quickbook
- Auto-submitted: auto-generated
- References: <bug-51737-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51737
--- Comment #13 from Jan Hubicka <hubicka at ucw dot cz> 2012-02-29 15:01:31 UTC ---
> The question is why we call delete_unreachable_blocks from
> tree_function_versioning at all. We do not bother updating the
> callgraph anywhere else.
>
> Honza, you added that beast?
Well, after clonning we alter CFG and we need to update SSA for which we need
to update dominators and those needs unreachable blocks gone. I will look into
this.
Honza