Re: [patch 5/6] [RFD] timekeeping: Provide optional 128bit math

From: Peter Zijlstra
Date: Fri Dec 09 2016 - 05:18:10 EST

On Fri, Dec 09, 2016 at 07:38:47AM +0100, Peter Zijlstra wrote:

> Turns out using GCC-6.2.1 we have the same problem on i386, GCC doesn't
> recognise the 32x32 mults and generates crap.
> This used to work :/

I tried:

gcc-4.4: good
gcc-4.6, gcc-4.8, gcc-5.4, gcc-6.2: bad