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Re: [PATCH] [SPARC] Disable muldf3_extend for LEON/LEON3
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Sebastian Huber <sebastian dot huber at embedded-brains dot de>
- Cc: gcc-patches at gcc dot gnu dot org, software at gaisler dot com
- Date: Tue, 25 Jul 2017 14:59:17 +0200
- Subject: Re: [PATCH] [SPARC] Disable muldf3_extend for LEON/LEON3
- Authentication-results: sourceware.org; auth=none
- References: <20170725114502.5055-1-sebastian.huber@embedded-brains.de>
> Prominent LEON2 chips like the AT697E and AT697F do not properly support
> the FSMULD instruction. LEON3 targets using the GRFPU-lite floating
> point unit do not support the FSMULD in hardware. Disable this
> instruction for for all LEON/LEON3 targets for simplicity.
And penalize everyone else?
--
Eric Botcazou