Will GCC eventually support SSE2 or SSE4.1?

[Stefan Kanthak]

"Jonathan Wakely" <jwakely.gcc@gmail.com> wrote:

> On Fri, 26 May 2023 at 12:42, Stefan Kanthak wrote:
>> Why does the documentation FAIL to specify that CPU features given by
>> -m* override -m32 or enables them in ADDITION to those enabled by -march=?
> 
> Because it's obvious.  If you ask for sse2 you get it.

ARGH! The documentation for -m32 contradicts

| -m32
...
| The -m32 option sets int, long, and pointer types to 32 bits, and
| generates code that runs on any i386 system.
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

> I find it very SURPRISING that you're only just learning the basics of
> how to use gcc NOW, after YELLING about all the OUCH.

I'm NOT surprised that you don't grok it!

gcc -msse4.1 -m32 -march=core2 ...

Which -m* options win here?
Do -m32 or -march=core2 override -msse4.1?

Stefan