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Re: PowerPC -many

From: Alan Modra <amodra at gmail dot com>
To: Segher Boessenkool <segher at kernel dot crashing dot org>
Cc: David Edelsohn <dje dot gcc at gmail dot com>, GCC Development <gcc at gcc dot gnu dot org>
Date: Wed, 15 Feb 2017 11:34:26 +1030
Subject: Re: PowerPC -many
Authentication-results: sourceware.org; auth=none
References: <20170214030703.GS21840@gate.crashing.org> <CAGWvnynbhayj6YCREkXLtS2qUYZku7fte85PAsevCmWzKDjs3A@mail.gmail.com> <20170215000601.GY3731@bubble.grove.modra.org> <20170215003840.GW21840@gate.crashing.org>

On Tue, Feb 14, 2017 at 06:38:40PM -0600, Segher Boessenkool wrote:
> On Wed, Feb 15, 2017 at 10:36:02AM +1030, Alan Modra wrote:
> > Since we've been talking about obsoleting cpu support, how about
> > getting rid of -many in ASM_CPU_SPEC for gcc-8?
> 
> Sure, but that doesn't need advance warning to the users, does it?

Probably not.

> Things worked before and stay working, nothing user-visible?

Except for bad user asm() that ought to be true.  Oh, and gcc bugs
like emitting power9 insns when -mcpu=power8.  You'd have some chance
that the assembler would complain rather than getting sigill at
run-time.

-- 
Alan Modra
Australia Development Lab, IBM

Follow-Ups:
- Re: PowerPC -many
  - From: Jakub Jelinek

References:
- Obsolete powerpc*-*-*spe*
  - From: Segher Boessenkool
- Re: Obsolete powerpc*-*-*spe*
  - From: David Edelsohn
- PowerPC -many
  - From: Alan Modra
- Re: PowerPC -many
  - From: Segher Boessenkool

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