Following https://github.com/llvm/llvm-project/pull/167998 add the list of supported baremetal Arm architectures to be able to build compiler_rt profile library for all variants in Arm Toolchain for Embedded, the list comes from architectures used in multilib configuration files in https://github.com/arm/arm-toolchain/tree/arm-software/arm-software/embedded/arm-multilib/json/variants
Compiler-RT ================================ This directory and its subdirectories contain source code for the compiler support routines. Compiler-RT is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. ================================