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Sometimes. GCC is also far older - about twice the age or more compared to llvm.

Do you think that your statement will be as true in 10 years?

Yes, since it’s been true for about the last 10.

While clang and LLVM is the set of compiler libraries that people write and extend developer tooling in:

* clangd

* clang-tidy

* clang error messages

* mlir

And others

My understanding is that for Intel cpus Intel compiler is substantially better than gcc.

> My understanding is that for Intel cpus Intel compiler is substantially better than gcc.

It's not, except for super specific workloads. Intel's own Intel-CPU-optimized distro, Clear Linux, is built mostly with GCC as a conscious performance decision:

https://docs.01.org/clearlinux/latest/guides/clear/performan...

ICC was for a very long time quite superior to MSVC tho.