LLVM Clang 14 Lands An "Amazing" Performance Optimization

[linner]

The last time I tested LLVM it was not as fast as gcc. In fact it struggled in a lot of areas. I'll have to try this newer version.

Is the "amazing" part that they're surpassing gcc in some huge way? If not then I fail to see what is amazing about it.

[klapaucius]

I would like to see C++20 fully implemented.

[oleid]

The bug report suggests that GCC already has that kind of optimization. So the gap is really being closed.

[phoronix]

Phoronix: LLVM Clang 14 Lands An "Amazing" Performance Optimization

While the performance of LLVM/Clang has improved a lot over the years and for x86_64 and AArch64 can be neck-and-neck with the GCC compiler, the fierce performance battle is not over. With LLVM/Clang 14.0 due out in the early months of 2022 will be more performance work with one recent commit in particular showing a lot of promise...

https://www.phoronix.com/scan.php?pa...-14-Hoist-Load