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Re: [Qemu-devel] [PATCH for-3.1 0/7] target/ppc fp cleanups
From: |
Alex Bennée |
Subject: |
Re: [Qemu-devel] [PATCH for-3.1 0/7] target/ppc fp cleanups |
Date: |
Wed, 04 Jul 2018 17:48:15 +0100 |
User-agent: |
mu4e 1.1.0; emacs 26.1.50 |
Programmingkid <address@hidden> writes:
>> On Jul 4, 2018, at 11:39 AM, Alex Bennée <address@hidden> wrote:
>>
>>
>> Programmingkid <address@hidden> writes:
>>
>>>> On Jul 4, 2018, at 10:15 AM, Alex Bennée <address@hidden> wrote:
>>>>
>>>>
>>>> Richard Henderson <address@hidden> writes:
>>>>
>>>>>
>>>>> Anyway, all of this has been broken long enough that it'll need to
>>>>> wait til next devel cycle before anything further gets done.
>>>>
>>>> When it gets done should we add some explicit ppc tests to tests/tcg/ppc
>>>> like we did with arm64 fcvt or would it be worth spending more time on
>>>> the general purpose FP test suite Emilio was working on as part of his
>>>> hard-float series?
>>>
>>> My vote goes to adding PowerPC specific tests. I already made some and sent
>>> them to the list a couple of days ago. A general purpose floating point
>>> test suite would probably not be able to test things like PowerPC floating
>>> point flags.
>>>
>>> I'm not certain how we would add floating point tests to QEMU. I'm
>>> guessing it would involve some kind of bootable image file that would
>>> load and run the tests. Hopefully there is an easier way to implement
>>> testing.
>>
>> You don't need system tests - this is all testable from linux-user. See
>> tests/tcg/arm/fcvt.c and the .ref files in arm and aarch64 directories.
>> Assuming the test isn't insane (like test-i386-fprem) we can just add a
>> reference output recorded on know good hardware.
>
> My hope is to make testing the floating point unit as easy as 'make
> test' or maybe 'make fp-test'.
That would be "make check-tcg"
--
Alex Bennée
- [Qemu-devel] [PATCH 5/7] target/ppc: Tidy helper_fsqrt, (continued)
- [Qemu-devel] [PATCH 5/7] target/ppc: Tidy helper_fsqrt, Richard Henderson, 2018/07/03
- [Qemu-devel] [PATCH 7/7] target/ppc: Use non-arithmetic conversions for fp load/store, Richard Henderson, 2018/07/03
- [Qemu-devel] [PATCH 4/7] target/ppc: Tidy helper_fadd, helper_fsub, Richard Henderson, 2018/07/03
- [Qemu-devel] [PATCH 6/7] target/ppc: Honor fpscr_ze semantics and tidy fre, fresqrt, Richard Henderson, 2018/07/03
- Re: [Qemu-devel] [PATCH for-3.1 0/7] target/ppc fp cleanups, David Gibson, 2018/07/04
- Re: [Qemu-devel] [PATCH for-3.1 0/7] target/ppc fp cleanups, Alex Bennée, 2018/07/04