On 01/24/2017 05:30 PM, Kyrill Tkachov wrote:
The -mfpu is overridden in the testcase to add the ARMv8 instructions. So to reproduce the compilation in that testcase you'd want -mfpu=fp-armv8 or something equivalent rather than vfpv3-d16-fp16.
Exact steps please. No one who's not well-versed in all the ARM variants will be able to figure this out. I've been able to generate identical before/after code, both with and without vselvs.f64 instructions, after trying out a number of switch combinations, but I've not been able to find a way to show where the patch makes a difference.
Bernd
