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Re: [RFC PATCHES] Obsolete or remove powerpc*-*-*spe* support (PR target/81084)
- From: Jeff Law <law at redhat dot com>
- To: Richard Biener <rguenther at suse dot de>, Jakub Jelinek <jakub at redhat dot com>
- Cc: "Joseph S. Myers" <joseph at codesourcery dot com>, Segher Boessenkool <segher at kernel dot crashing dot org>, David Edelsohn <dje dot gcc at gmail dot com>, Andrew Jenner <andrew at codesourcery dot com>, gcc-patches at gcc dot gnu dot org
- Date: Wed, 18 Apr 2018 09:50:15 -0600
- Subject: Re: [RFC PATCHES] Obsolete or remove powerpc*-*-*spe* support (PR target/81084)
- Autocrypt: addr=law at redhat dot com; prefer-encrypt=mutual; keydata= xsBNBFkbIO8BCACVIqDhDVh9ur8C+zNV1J/cXfwvVDAUcphDEFl4jyHqZORK4Pd3Db8oWqLm Q8lOCr/VOS7lrCtdpVMQkLGOGA16oJ8g7hzhnojpjY09UjsoUiG7oKacuxj8skfp6SIx93Zl +iNYPRa4S+za6nY8qiVjyUuiyX04ZPZMrKp2c2sGi+HnBKUZXGhrz/Jdzdox3tjajWZnObyy nhEN6hn9L3KawTtGPE/R6A/1RhHTD9FQmIWIeucpaY5c6GNKXTFpj2VYx57LY5hve1R5vhrJ IZcgwZAiOtmik5lVi96glY5h6bugRwpexjhwORTLPBCkwiYotSxX99mWd6EHL576i5CNABEB AAHNGUplZmYgTGF3IDxsYXdAcmVkaGF0LmNvbT7CwI4EEwEIADgWIQR+niGjtnP5P/8PpRq8 fP682pgzWwUCWRsg7wIbAwULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRC8fP682pgzW5QG B/9VATJmx5235RB+8jiDYGXQf3vd9gBfPy/l1tsaK400eFAevDzfGvKmeCKe+uGnlrH3vyT8 rg9zqH+s5a1Y+lDXPOpJAFmmzbOLU4FW4ucbawmtYvBL65PqpQneCTYnC802/OAcxjm/Onem HlgeK6WicNsBTPwYN/0araDFUejyYBIFi9CNqqflwk5Z3brKbQ9bAYIkysVLC/c3njKPmM0c WPFHG91ubLbWCHwTIK0+mAL714eTD74dXzOjO2ZDBPLGlFN/kO3+YjaO6UOD2O8acvAMCivT kWLr7JwRgLIQDN2DkhQDd3LTPqQE/yOcMcXBTO+fxm8KG0iKQBqWMyGJzsBNBFkbIO8BCACy qbOsv7XegSeea8XORt5zMaBVWKoSyhmmcCmlxZFS2cuYOBt79MO13lZE2DlO3Lv5IKikj/D4 ketGVO4+h5psEMH5Yz5P8bx0TmgwbK1GxPZrzeXozUFJDvvCDbIlT0v0pwUXuK3hg8Ieo2h5 uTed/cn1OjySXW5BqLxN0cyr5hL+J6dcsHvKLT/N3nTgCQhoJXK2MrEMhAGgF3jKpMn3CoS4 i/ZbNI2MQR6LWHwdZ95f0fI8NzHSfVzeLtzCKQec7nr9fgd6Ylk1ZpGWQUPlQmKjzYgeCeTK NO04cwt20WIrQWeWiZFPA0U86NDBdSBrYp4kG3dfIXE+wSSvE7qPABEBAAHCwHYEGAEIACAW IQR+niGjtnP5P/8PpRq8fP682pgzWwUCWRsg7wIbDAAKCRC8fP682pgzW3REB/9cT7iKRPg/ OK9bpLlllIEDM90IaKC79DQrv+fRudOR78cdV4XUwPSFnyHUsP3VJ4lDy5FhiKCwGie0BK53 EsxgMrLy1L8hboFdTE4Vi0xzCheMaMVp4hATDU29k1cuxu1VPpCa8E3mYeHjNV7ip0HN5L4D rfs8lRPJE/oM1vGs9DgQFZrCPPNRNGKC97BH+DHccesEJr7tSsQrkPkt0z/FTKr5wIM02vSx OJjgmcVbGB7dc2j/Sx8loXmuKnuKtM35668kUG8jeJvSQk3o/VHpD27bhl0rR68R2jN6G6kQ egMVb6dPu1Ius8rBE5rFw88J4JEb5q4hMNClWWUFHIdP
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On 04/18/2018 01:51 AM, Richard Biener wrote:
> On Tue, 17 Apr 2018, Jakub Jelinek wrote:
>
>> Hi!
>>
>> In the http://gcc.gnu.org/ml/gcc/2017-02/msg00041.html
>> thread it has been proposed that powerpc*-*-*spe* would be obsoleted in
>> GCC 7, which didn't happen and the rs6000 backend has been split into two,
>> one actively maintained where the SPE support has been removed, and the
>> other one which unfortunately had just a few small commits, didn't get rid
>> of the expected 80% of the new backend which would make it deal with it
>> for global changes in GCC, nor has the bugfixes added to rs6000 backend in
>> the last 11 months since the split (many of them apply to powerpcspe too).
>>
>> So, in order to resolve the P1 PR81084, I think we should at least make the
>> powerpc*-*-*spe* obsolete for GCC 8 and remove in GCC 9 if it doesn't get
>> significantly better soon (the first patch), or remove it altogether now,
>> which would match the deal that either the port is cleaned up, or it is
>> removed (the second patch). In addition to this some changes.html
>> changes will be needed depending on what is chosen.
>>
>> Preferences on what to do?
>
> I think I prefer the first for GCC8 and remove it early in stage1 if
> people don't get their asses moved.
Agreed. Similarly for MPX.
jeff