[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: About hardfloat in ppc

From: Alex Bennée
Subject: Re: About hardfloat in ppc
Date: Mon, 27 Apr 2020 10:42:41 +0100
User-agent: mu4e 1.4.1; emacs 28.0.50

罗勇刚(Yonggang Luo) <address@hidden> writes:

> Because ppc fpu-helper are always clearing float_flag_inexact,
> So is that possible to optimize the performance when  float_flag_inexact
> are cleared?

There was some discussion about this in the last thread about enabling
hardfloat for PPC. See the thread:

  Subject: [RFC PATCH v2] target/ppc: Enable hardfloat for PPC
  Date: Tue, 18 Feb 2020 18:10:16 +0100
  Message-Id: <address@hidden>

However in short the problem is if the float_flag_inexact is clear you
must use softfloat so you can properly calculate the inexact status. We
can't take advantage of the inexact stickiness without loosing the
fidelity of the calculation.

Alex Bennée

reply via email to

[Prev in Thread] Current Thread [Next in Thread]