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Date:      Mon, 13 Jan 2014 14:34:28 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        Andrew Turner <andrew@fubar.geek.nz>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: Using VFP registers in the msun fenv functions
Message-ID:  <1EEB0662-E528-4E36-8A39-B5804AD89132@bsdimp.com>
In-Reply-To: <20140112194532.27366e43@bender.Home>
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Hi Andrew,

Thanks for tackling this...

On Jan 12, 2014, at 12:45 PM, Andrew Turner wrote:
> [1] http://people.freebsd.org/~andrew/armv6fenv2.diff

I noticed several constructs like

+int feclearexcept(int __excepts)
+{
+
+	if (_libc_arm_fpu_present)
+		__vfp_feclearexcept(__excepts);
+	__softfp_feclearexcept(__excepts);
+
+	return (0);
+}

where you do the softfp thing unconditionally. Why is that, and is it intentional?

Warner
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