[Mesa-dev] [PATCH 1/2] clover: assert struct argument is compiled usably

Emil Velikov emil.l.velikov at gmail.com
Wed Jul 27 13:29:58 UTC 2016

On 6 June 2016 at 00:02, Vedran Miletić <vedran at miletic.net> wrote:
> On 06/04/2016 04:18 AM, Francisco Jerez wrote:
>> Serge Martin <edb+mesa at sigluy.net> writes:
>>> From: Vedran Miletić <vedran at miletic.net>
>>> Make sure that a struct argument did not get compiled into a pointer
>>> type with the byval attribute. If we try to handle the pointer with
>>> byval, we end up with the pointer size instead of the struct size.
>> Ugh, is that a bug in the code below?  How are byval pointers supposed
>> to be handled here?  Exactly as if the argument wasn't a pointer at all
>> by providing a copy of the pointed-to object as-is in the kernel input
>> buffer?  In that case wouldn't the code below need to pass the correct
>> size of the pointed-to object as target/api size rather than the size of
>> the pointer?
> Yes, byval+pointer should be handled as there is no pointer at all.
> I have tried passing the correct size, but IIRC LLVM AMDGPU backend does not
> generate correct asm for byval+pointer variant. The simple solution is to
> fail with an assert here unless Clang generates code both Clover and the
> backend can handle.
Gents, can anyone confirm if the series is still applicable for master
or it's been superseded ?


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