[Regression] Huge gap between compiling ppu modules and spu modules (#13534)

[Megamouse]

For some time now we have a weird gap between compiling ppu modules and spu modules.
It's ~7 seconds for Fear. And nothing is logged in between.

[solarmystic]

This can be definitively traced back to #13534, it was never an issue on LLVM14.

0.0.27-14845 (last build before LLVM16) - instantaneous progression from the end of one phase to the other.

LLVM14.mp4

Current master (post LLVM16) - Note the really long gap (6s) between the end of linking PPU modules and building SPU cache

LLVM16.mp4

[Darkhost1999]

At least it's not 65+ seconds like the less fortunate games. I really can't complain if it was only ~7

FPS_.30.03._.Vulkan._.0.0.27-15007._.Grand.Theft.Auto.V.BLUS31156.2023-05-17.20-45-53.mp4

[AniLeo]

Worth retesting with #14090

[solarmystic]

#14090 doesn't fix this particular issue unfortunately, there's still an abnormally long pause between the end of Linking PPU modules and the start of building SPU cache.

ppu.mp4

12 seconds in the video above when booting up GT5 using the PR build.

[AniLeo]

Very likely fixed by #14848, please ask to reopen if it's not fixed on your side