From: Richard Henderson <richard.henderson@linaro.org>
To: Ian Jiang <ianjiang.ict@gmail.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>,
Alistair Francis <Alistair.Francis@wdc.com>,
"qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
Sagar Karandikar <sagark@eecs.berkeley.edu>,
Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Subject: Re: [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing
Date: Thu, 23 Jan 2020 08:52:54 -1000 [thread overview]
Message-ID: <ddd76565-4139-35e6-a23d-9e2c13fc613c@linaro.org> (raw)
In-Reply-To: <CAMAD20nWyApK7-uFNvMpXmzfiTohLOhPgD+TTNr+ZWVn+QA7Tg@mail.gmail.com>
On 1/22/20 6:05 PM, Ian Jiang wrote:
> But I am not clear where to call this new helper gen_nanbox_fpr(). Is
> there a position that could affect all floating-point instructions? So
> that we don't have to modify so many translating functions. Please
> give more details.
No, this will have to be called for each instruction individually.
That said, all of the insns that use helper functions, such as fsqrt_s, should
be doing the nan-boxing within the helper function. Thus you'll want a
different helper function for use within fpu_helper.c.
r~
next prev parent reply other threads:[~2020-01-23 19:40 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-22 7:24 [PATCH] riscv: Format Rd of FMV.W.X with NoN-boxing Ian Jiang
2020-01-22 8:53 ` Richard Henderson
2020-01-22 9:53 ` Ian Jiang
2020-01-22 17:10 ` Richard Henderson
2020-01-23 0:48 ` Ian Jiang
2020-01-23 3:07 ` Richard Henderson
2020-01-23 4:05 ` Ian Jiang
2020-01-23 18:52 ` Richard Henderson [this message]
2020-01-27 14:17 ` Ian Jiang
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