[Development] Updating x86 SIMD support in Qt

[Lorn Potter]

On 20/1/2022 1:29 AM, Thiago Macieira wrote:
> On Tuesday, 18 January 2022 20:56:10 PST Lorn Potter wrote:
>> wasm is a special case, as we turn it off by default, regardless of
>> detection. We cannot allow detection by default (specified by some
>> configure argument which is currently -sse2) because browsers do not
>> support it by default, and there is no way to just not use it once it is
>> compiled in.
> 
> Hello Lorn
> 
> Please explain. What architecture is WASM producing binaries for? Is it 32-bit
> i386? Or is it 64-bit x86-64? Because the latter requires SSE2 to do floating
> point.

You could think of webassembly as javascript.

It's like Jean-Michael says, 32 bit, but it's complicated.



> 

-- 
Lorn Potter
Freelance Qt Developer. Platform Maintainer Qt WebAssembly, Maintainer 
QtSensors
Author, Hands-on Mobile and Embedded Development with Qt 5