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Re: [LLVMdev] FYI: IA-32 psABI draft version 0.1
- From: Richard Smith <richard at metafoo dot co dot uk>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: GCC Development <gcc at gcc dot gnu dot org>, GNU C Library <libc-alpha at sourceware dot org>, Binutils <binutils at sourceware dot org>, "cfe-dev at cs dot uiuc dot edu Developers" <cfe-dev at cs dot uiuc dot edu>, "llvmdev at cs dot uiuc dot edu Mailing List" <llvmdev at cs dot uiuc dot edu>
- Date: Thu, 22 Jan 2015 14:40:39 -0800
- Subject: Re: [LLVMdev] FYI: IA-32 psABI draft version 0.1
- Authentication-results: sourceware.org; auth=none
- References: <CAMe9rOppN+Rfb-8FPrXN4BxsrMEeh0ChmN+aWmGKyi6iRu=3aQ at mail dot gmail dot com> <CAOfiQqkBWxza+7czv8nkk=7i6G-Vt2EtcqpAFJCdOFP5yhjSHg at mail dot gmail dot com> <CAMe9rOrebfiY5Q5vUd5drNXkAR+UsOO0jc4rD4nAQBfpA8aQmg at mail dot gmail dot com> <CAMe9rOqn5nKQsqumX8YpeM=1jGoX6Zcf9dKYQyzRwmpFdV+DOg at mail dot gmail dot com>
On Thu, Jan 22, 2015 at 12:05 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
> On Thu, Jan 22, 2015 at 12:00 PM, H.J. Lu <hjl.tools@gmail.com> wrote:
>> On Thu, Jan 22, 2015 at 11:54 AM, Richard Smith <richard@metafoo.co.uk> wrote:
>>> On Thu, Jan 22, 2015 at 4:35 AM, H.J. Lu <hjl.tools@gmail.com> wrote:
>>>> Here is the link:
>>>>
>>>> https://groups.google.com/forum/#!topic/ia32-abi/nq6cvH_VVV4
>>>
>>> The document contains this claim (as do many other psABI documents):
>>>
>>> "Bit-fields that are neither signed nor unsigned
>>> always have non-negative values. Although they may have type char,
>>> short, int, or long (which can have negative values), these bit-fields
>>> have the same range as a bit-field of the same size with the
>>> corresponding unsigned type."
>>>
>>
>> Can you show me where this paragraph in IA-32 psABI?
>> I couldn't find it in my copy.
>>
>
> FYI :-):
>
> commit 2496a6db377b489668e49c39b6f477a4f8f0ec22
> Author: H.J. Lu <hjl.tools@gmail.com>
> Date: Wed Jan 7 13:05:49 2015 -0800
>
> Remove Bit-Fields
Ah, I was looking at the wrong branch ('master' instead of
'hjl/x86/master'). Thanks =)