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RE: Some regressions from the dataflow merge
On 12 June 2007 15:05, Kenneth Zadeck wrote:
> Richard Guenther wrote:
>> On ia64 SPEC2000 I see fma3d and applu now miscompare, and we have
>> on x86_64 some performance regressions with Botan (a collection of
>> cryptographic algorithms (see
>> http://www.suse.de/~gcctest/c++bench/botan/)) - those are reasonably small
>> enough to investigate, but wait another day in case its just noise.
>>
>> Otherwise things look smooth as expected.
>>
>> Richard.
>>
> I looked at the graphs here and i do not see a regression except in the
> compile time.
Fortran has a testcase that trips one on x86/cygwin: see
http://gcc.gnu.org/ml/gcc/2007-06/msg00291.html. Perhaps you can comment on
whether df_live (== df->problems_by_index[DF_LIVE]) should ever be NULL?
cheers,
DaveK
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