This is the mail archive of the gcc-patches@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH][AArch64] Improve Cortex-A53 shift bypass


On 6/28/17 1:49 PM, Wilco Dijkstra wrote:
Ramana Radhakrishnan wrote:
I'm about to run home for the day but this came in from
https://gcc.gnu.org/ml/gcc-patches/2013-09/msg02109.html and James
said in that email that this was put in to ensure no segfaults on
cortex-a15 / cortex-a7 tuning.

The code is historical - an older version didn't specifically look just for
shifts. Given we can only return shift rtx's now it's completely redundant.
A bootstrap on armhf with --with-cpu=cortex-a15 passed.


In which case - ok . thanks,

regards
Ramana

Wilco


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]