Here's a key paragraph from Anandtech's recent article on ARM in AWS: > Overall, I checked three different compiler setups: A freshly compiled GCC 9.2.0 releas

Here's a key paragraph from Anandtech's recent article on ARM in AWS: > Overall, I checked three different compiler setups: A freshly compiled GCC 9.2.0 release, Arm’s Allinea Studio Compiler 20 package which comes with both Arm’s closed source LLVM and Flang variants as well as a pre-compiled version of GCC 9.2.0, and Marvell’s branch of LLVM and Flang. Note the phrases "ARM's closed source LLVM" and "Marvell's branch of LLVM". That's why GCC is still critical. Because LLVM is already suffering from the fragmentation and proprietary forks that BSD has always suffered from.