Status of Flang's Optimization

[yus3710-fj]

I’ve created a new topic for TSVC.

Performance analysis for TSVC

Hello. As I said before, I’ve investigated the performance of TSVC on A64FX (Fujitsu AArch64 CPU), and now I’d like to share the information. I’m afraid I’ve not completely finished the research yet, but I think it is worth sharing with you. HLFIR lowering There was a weird performance issue on HLFIR lowering. The assembly code of the innermost loop is the same as FIR lowering but the performance is reduced by 10% when HLFIR lowering is enabled. I found that the performance depends on the o…