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Re: [PATCH] Devirtualization dump functions fix

On Thu, Jun 26, 2014 at 5:58 PM, Martin LiÅka <> wrote:
> On 06/26/2014 04:29 PM, Jakub Jelinek wrote:
>> On Thu, Jun 26, 2014 at 04:27:49PM +0200, Martin LiÅka wrote:
>>>>> Well yes - it is of course similar broken in spirit but at least a lot
>>>>> simpler ;)  I'd put a comment there why we do check g for NULL.
>>>> But it increases overhead, there are hundreds of gimple_location calls
>>>> and most of them will never pass NULL.  Can't you simply
>>>> do what you do in the inline here in the couple of spots where
>>>> the stmt might be NULL?
>>> Sure, do you have any suggestion how should be called such function?
>>> Suggestion: gimple_location_or_unknown ?
>> gimple_location_safe or gimple_safe_location?
>>         Jakub
> Thanks, there's new patch.
> Patch has been tested for Firefox with -flto -fdump-ipa-devirt.
> Bootstrap and regression tests have been running.
> Ready for trunk after regression tests?

Ok with s/gimple_safe_location/gimple_location_safe/ (I think that's
the more canonical naming - what's a "safe location" after all?)


> ChangeLog:
> 2014-06-26  Martin Liska  <>
>     * gimple.h (gimple_safe_location): New function introduced.
>     * cgraphunit.c (walk_polymorphic_call_targets): Usage
>     of gimple_safe_location replaces gimple_location.
>     (gimple_fold_call): Likewise.
>     * ipa-devirt.c (ipa_devirt): Likewise.
>     * ipa-prop.c (ipa_make_edge_direct_to_target): Likewise.
>     * ipa.c (walk_polymorphic_call_targets): Likewise.
>     * tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): Likewise.

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