AMD AOCC 4.0 Arrives For Squeezing More Performance Out Of Zen 4

[ptr1337]

Hi! I work for AMD and in AOCC!
Can you please let us know what error you are facing and your settings for the compilation. We would like to track this issue down and resolve it.
Thank you!

The only warning/error the complete log does show:

https://paste.cachyos.org/p/884367a.log

Im on CachyOS(archlinux), Kernel 6.0.9 got compiled
Config: https://paste.cachyos.org/p/fd6becb.9-2-cachyos-lto
CPU: 5900X

Clang 14, 15 and 16 are working correctly on the same source.

And because the performance of the compiler itself:

AOCC
Till the point where the compiler failed to compile the kernel:
```
Executed in 23.25 mins fish external
usr time 480.67 mins 131.00 micros 480.67 mins
sys time 23.72 mins 112.00 micros 23.72 mins
```

Clang-15 compiled with ThinLTO, PGO and optimized with BOLT Source:https://mirror.cachyos.org/llvm-bolt-15.tar.zst
I stopped the compilation at the point where AOCC failed:
```
__________________________________________________ ______
Executed in 594.25 secs fish external
usr time 180.36 mins 200.00 micros 180.36 mins
sys time 19.06 mins 90.00 micros 19.06 mins

```

How it can be that a compiler is that much slower?

Regards

Peter Jung

[gganesh]

The only warning/error the complete log does show:

https://paste.cachyos.org/p/884367a.log

Im on CachyOS(archlinux), Kernel 6.0.9 got compiled
Config: https://paste.cachyos.org/p/fd6becb.9-2-cachyos-lto
CPU: 5900X

Thank you! We didn't have much to offer with ThinLTO. We have root caused the issue. We are trying to resolving it and also checking\reducing the compilation time!
Will keep you posted!