Re: [RFC][PATCH 3/3] math128, x86_64: Implement {mult,add}_u128 in 64bit asm
From
Peter Zijlstra <>
Date
Tue, 24 Apr 2012 18:36:35 +0200
On Tue, 2012-04-24 at 09:34 -0700, H. Peter Anvin wrote: > On 04/24/2012 09:10 AM, Peter Zijlstra wrote: > > Are you sure that gcc won't simply generate this code already if given > "unsigned __int128"?
It might, but I've been told some GCC versions had issues, also lots of archs fall back to libgcc functions.