This enhances VN to do the same PHI handling as CCP, meeting
undefined and constant to constant. I've gone a little bit
further (and maybe will revisit this again) in also meeting
all-undefined to undefined taking one of the undefined args
as the value number. I feel like this might run into
the
On Thu, 7 Sep 2017, Richard Biener wrote:
>
> This enhances VN to do the same PHI handling as CCP, meeting
> undefined and constant to constant. I've gone a little bit
> further (and maybe will revisit this again) in also meeting
> all-undefined to undefined taking one of the undefined args
> as
On Thu, 7 Sep 2017, Richard Biener wrote:
> On Thu, 7 Sep 2017, Richard Biener wrote:
>
> >
> > This enhances VN to do the same PHI handling as CCP, meeting
> > undefined and constant to constant. I've gone a little bit
> > further (and maybe will revisit this again) in also meeting
> > all-und
* tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
to VN_TOP.
This seems to have regressed
FAIL: gcc.dg/tree-prof/time-profiler-2.c scan-ipa-dump-times profile
"Read tp_first_run: 0" 2
FAIL: gcc.dg/tree-prof/time-profiler-2.c scan-ipa-dump-times profile
"Read tp_first_run: 2" 1
FAIL:
On Thu, 14 Sep 2017, David Edelsohn wrote:
> * tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
> to VN_TOP.
>
> This seems to have regressed
>
> FAIL: gcc.dg/tree-prof/time-profiler-2.c scan-ipa-dump-times profile
> "Read tp_first_run: 0" 2
> FAIL: gcc.dg/tree-prof/time-profiler-2.c
On Fri, Sep 15, 2017 at 2:53 AM, Richard Biener wrote:
> On Thu, 14 Sep 2017, David Edelsohn wrote:
>
>> * tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
>> to VN_TOP.
>>
>> This seems to have regressed
>>
>> FAIL: gcc.dg/tree-prof/time-profiler-2.c scan-ipa-dump-times profile
>> "Re
David Edelsohn writes:
> On Fri, Sep 15, 2017 at 2:53 AM, Richard Biener wrote:
>> On Thu, 14 Sep 2017, David Edelsohn wrote:
>>
>>> * tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
>>> to VN_TOP.
>>>
>>> This seems to have regressed
>>>
>>> FAIL: gcc.dg/tree-prof/time-profiler-2.c
On Wed, Sep 27, 2017 at 6:58 PM, Richard Sandiford
wrote:
> David Edelsohn writes:
>> On Fri, Sep 15, 2017 at 2:53 AM, Richard Biener wrote:
>>> On Thu, 14 Sep 2017, David Edelsohn wrote:
>>>
* tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
to VN_TOP.
This seems
David Edelsohn writes:
> On Wed, Sep 27, 2017 at 6:58 PM, Richard Sandiford
> wrote:
>> David Edelsohn writes:
>>> On Fri, Sep 15, 2017 at 2:53 AM, Richard Biener wrote:
On Thu, 14 Sep 2017, David Edelsohn wrote:
> * tree-ssa-sccvn.c (visit_phi): Merge undefined values similar
>>>