[FFmpeg-devel] [PATCH] read_time() for SPARC

[Michael Kostylev]

On Thu Sep  9 12:15:05 2010
M?ns Rullg?rd wrote:

>>>>> The presence of __sparc_v9__ clearly does not imply we are allowed
>>>>> to use 64-bit registers; __arch64__ does.
>>>>
>>>> __sparc_v9__ means the v9 hardware, __arch64__ means the v9 abi.
>>>
>>>Exactly, and without the v9 ABI we can't use 64-bit registers.
>>
>> We can with v8+ and we do.

"SPARC V8PLUS ABI Restrictions
[...]
The rest of the register restrictions remain unchanged from SPARC V8 ABI.
However, the global registers are 64-bit registers and may be used as such
by user programs."

>Absurd, and gcc appears to disagree.

If it does not use the 64-bit general regs when it is meaningful then gcc
sucks.

Michael