https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #8 from PeteVine ---
I've just confirmed the result on a newer Linux distribution (Ubuntu 16.04) and
the difference between VFPv3 and v4 is clearly there (2330 vs 2560) using gcc
5.4.
Unless the CPU itself requires an erratum, that
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #7 from PeteVine ---
Thanks, I promise to test any patches without delay :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
Ramana Radhakrishnan changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #5 from PeteVine ---
Unchanged in gcc version 8.0.0 20170501.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #4 from PeteVine ---
> Judging by your -mcpu option is this on a Cortex-A5?
Yes, if you look at the results on a Cortex A53 running armv7 code, it doesn't
reproduce either, and A5-codegen is king :) (hopefully due to in-order design
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #3 from ktkachov at gcc dot gnu.org ---
I can't reproduce the difference on my machine.
Judging by your -mcpu option is this on a Cortex-A5?
As far as codegen goes the major difference I can see is that the vfpv4 version
generates vf
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
--- Comment #2 from PeteVine ---
Created attachment 40769
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40769&action=edit
sphract
The other file required to run the benchmark straight from bugzilla! :)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581
PeteVine changed:
What|Removed |Added
Target||armv7
--- Comment #1 from PeteVine ---
Disti