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References: <20221028173532.876027-1-adhemerval.zanella@linaro.org>
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From: =?UTF-8?Q?Cristian_Rodr=C3=ADguez?= <crrodriguez@opensuse.org>
Date: Wed, 2 Nov 2022 16:43:59 -0300
Message-ID: <CAPBLoAeMQBHJU77ThNkcmLrk8y06gvW3aGQD6tgkO5vB4NqVTA@mail.gmail.com>
Subject: Re: [PATCH 01/11] stdlib/longlong.h: Remove incorrect lvalue to
 rvalue conversion from asm output constraints
To: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org>
Cc: Joseph Myers <joseph@codesourcery.com>, libc-alpha@sourceware.org
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On Wed, Nov 2, 2022 at 2:10 PM Adhemerval Zanella Netto
<adhemerval.zanella@linaro.org> wrote:
>
>
>
> On 02/11/22 12:14, Cristian Rodr=C3=ADguez wrote:
> > On Tue, Nov 1, 2022 at 2:06 PM Adhemerval Zanella Netto via Libc-alpha
> > <libc-alpha@sourceware.org> wrote:
> >
> >> I am open to suggestions in fact,
> >
> > What about just using the compiler builtins directly and not using
> > this header at all?
>
> My understanding is this header should be used in the scenario where the
> builtin might generate libcalls, for instance on libgcc and/or libc.

My - I confess very limited - research the other day suggests there
are very few targets without __clz* __ctz__ patterns.. On this case it
will indeed call libgcc (is that frowned upon still?) but not libc ...