Hi, I'm looking into what could be the best way to add compiler flags for Clang to emit optimized code for a specific chip on a given architecture.
Looking at various sources I saw that: - llc -march=<architecture> -mcpu=help returns the list of the supported cpus which is already helpful. The piece of information I'm currently missing is how to translate llc's flags like: - `-march=x86-64 -mcpu=broadwell` - `-march=aarch64 -mattr=+v8.1a,+fp-armv8,+neon,+crc,+crypto` etc. into something that is understood by clang. In case the context for doing this is of interest, I'm a core developer of a package manager focused on HPC (https://github.com/spack/spack) and we'll use this information to automatically inject optimization flags when installing application from sources based on the chip selected by the user. Cheers, Massimiliano Culpo
_______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
