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Forgive me if this is ignorant, since I havent done any benchmarks on this in a while, but doesnt GCC produce slightly faster code on average across a wide set of benchmarks compared to clang/LLVM?

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Perhaps, but the advantages of a large third-party ecosystem around LLVM outweighed any performance differences between GCC and LLVM.

At least in these benchmarks that phoronix run time-to-time, (so they at least can be compared to their older self) LLVM, in its Clang incarnation, is finally getting some parity in execution times with GCC

https://www.phoronix.com/scan.php?page=article&item=gcc-clan...

Of course, benchmarks, yada yada, but at least is some sort of comparison axis where the improvement over the years is clear.

Thanks for the link. I was probably thinking about some older phoronix benchmarks when I made my post

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