-----Original Message-----
From: gcc-ow...@gcc.gnu.org [mailto:gcc-ow...@gcc.gnu.org] On Behalf Of shmeel
gutl
Sent: Wednesday, June 03, 2015 12:10 PM
To: GCC Development
Subject: Question about find modifiable mems
>>find_modifiable_mems was introduced to gcc 4.8 in september 2012. Is there
>>any documentation as to how it is supposed to help the haifa scheduler?
>>In my private port of gcc it make the following type of transformations
>>from
>>a= *(b+20)
>>b+=30
>>to
>> b+=30
>>a=*(b-10)
>>Although this is functionally correct, it has changed an ANTI_DEP into a
>>TRUE_DEP and thus introduced stalls. If it went the other way, that would be
>>good. >>Any pointers?
Breaking Anti-Dependencies is an important optimization for transformation like
Vectorization.
Thanks & Regards
Ajit
Thanks,
Shmeel
