Re: [Qemu-devel] [PATCH v2] softfloat: enforce softfloat if the host's FMA is broken

2018-12-25 Thread Philippe Mathieu-Daudé
On Tue, Dec 25, 2018 at 12:15 PM Philippe Mathieu-Daudé wrote: > > Hi Emilio, > > On 12/25/18 8:03 AM, Emilio G. Cota wrote: > > The added branch to the FMA ops is marked as unlikely and therefore > > its impact on performance (measured with fp-bench) is within noise range > > when measured on an

Re: [Qemu-devel] [PATCH v2] softfloat: enforce softfloat if the host's FMA is broken

2018-12-25 Thread Philippe Mathieu-Daudé
Hi Emilio, On 12/25/18 8:03 AM, Emilio G. Cota wrote: > The added branch to the FMA ops is marked as unlikely and therefore > its impact on performance (measured with fp-bench) is within noise range > when measured on an Intel(R) Xeon(R) Gold 6142 CPU @ 2.60GHz. Did you forget to write here the r

[Qemu-devel] [PATCH v2] softfloat: enforce softfloat if the host's FMA is broken

2018-12-24 Thread Emilio G. Cota
The added branch to the FMA ops is marked as unlikely and therefore its impact on performance (measured with fp-bench) is within noise range when measured on an Intel(R) Xeon(R) Gold 6142 CPU @ 2.60GHz. Reported-by: Laurent Desnogues Signed-off-by: Emilio G. Cota --- v2: drop the cpuid bits, sin