[Bug target/79581] VFP4 slower than VFP3 in C-ray on Cortex A5

2017-06-15 Thread tulipawn at gmail dot com
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

[Bug target/79581] VFP4 slower than VFP3 in C-ray on Cortex A5

2017-06-15 Thread tulipawn at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581 --- Comment #7 from PeteVine --- Thanks, I promise to test any patches without delay :)

[Bug target/79581] VFP4 slower than VFP3 in C-ray on Cortex A5

2017-06-15 Thread ramana at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581 Ramana Radhakrishnan changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug target/79581] VFP4 slower than VFP3 in C-ray on Cortex A5

2017-05-01 Thread tulipawn at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581 --- Comment #5 from PeteVine --- Unchanged in gcc version 8.0.0 20170501.

[Bug target/79581] VFP4 slower than VFP3 in C-ray

2017-02-20 Thread tulipawn at gmail dot com
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

[Bug target/79581] VFP4 slower than VFP3 in C-ray

2017-02-20 Thread ktkachov at gcc dot gnu.org
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

[Bug target/79581] VFP4 slower than VFP3 in C-ray

2017-02-18 Thread tulipawn at gmail dot com
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! :)

[Bug target/79581] VFP4 slower than VFP3 in C-ray

2017-02-17 Thread tulipawn at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79581 PeteVine changed: What|Removed |Added Target||armv7 --- Comment #1 from PeteVine --- Disti