GCC 12 Shifting To Stage 4 Development - No Sign Of AMD Zen 4 Support

[phoronix]

Phoronix: GCC 12 Shifting To Stage 4 Development - No Sign Of AMD Zen 4 Support

The GNU Compiler Collection (GCC) that serves as the default system compiler on most Linux distributions is nearing its annual update with GCC 12. GCC 12 has been in a general bug fixing period since November while beginning next week will be onto its final phase of focusing just on regression and documentation fixes to the compiler...

https://www.phoronix.com/scan.php?page=news_item&px=GCC-12-Nears-Stage-4

[sdack]

Patience is overrated.

[skeevy420]

I can't tell y'all how many times I've typoed out nzver2.

The other day I was compiling some software that requires -Os (CHDK). It'll be interesting to try out GCC12 to see how -Oz performs.

[ms178]

Anyone who wants to try out GCC 12-git, beware! There is still a bug (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101941) preventing you from successfully compiling the Linux kernel.

[chuckula]

Half the rumors I hear are that Zen4 is boring from a compiler perspective because it appears similar to Zen3 while the other half of the rumors claim it will come with a massive set of AVX-512 instructions that put it about on par with Tiger Lake.

So we'll see what needs to happen to fully support it.

[uxmkt]

Nobody needs AVX512. (If you compute, you do it with a GPU anyway.)

[Spazturtle]

Nobody needs AVX512. (If you compute, you do it with a GPU anyway.)

Very few people need the 512bit support that AVX-512 brings to the table, but many people can benefit from the new instructions that come with AVX-512 that work in 128bit and 256bit mode.

[scineram]

GCC aready support AVX-512. And any other instruction that Zen 4 supports.