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Re: [Tinycc-devel] Annoying new warning

From: Michael Matz
Subject: Re: [Tinycc-devel] Annoying new warning
Date: Tue, 2 May 2017 02:00:32 +0200 (CEST)
User-agent: Alpine 2.20 (LSU 67 2015-01-07)


On Mon, 1 May 2017, Daniel Glöckner wrote:

On Sat, Apr 29, 2017 at 07:55:18PM +0200, Michael Matz wrote:
ARMs long double
type simply is double itself, and hence these functions are unused
on ARM.  Well, they would be if there wouldn't be strange code in
arm-gen.c that makes use of xfdi conversions when VFP is enabled.
That makes no sense, also with VFP there's only support for IEEE
double, not for extended double.

Since LDOUBLE_SIZE == 8 on VFP, those code lines will only be used with FPA.

And there they won't either because LDOUBLE_SIZE is also 8 for !VFP. That's what I meant with "strange" I guess, it's dead code :)


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