From Fedora Project Wiki
| GHC version | recommended LLVM version | Fedora archs defaulting to llvm backend |
|---|---|---|
| 9.2.1 | 10 or 11 or 12 | armv7hl |
| 9.0.1 | 9 | aarch64, armv7hl |
| 8.10.5 | 10 or 11 | aarch64, armv7hl |
| 8.10.4 | 9 | aarch64, armv7hl |
| 8.8 | 7 | aarch64, armv7hl |
| 8.6 | 6 | aarch64, armv7hl |
| 8.4 | 5 | aarch64, armv7hl |
| 8.2 | 3.9 | aarch64, armv7hl |
x86_64, i686 and ppc64le have Native Code Generation (NCG).
At least x86_64 and i686 also support the LLVM backend.
ghc9 supports llvm backend of s390x when built with Hadrian.
GHC 9.2.1 has NCG for aarch64.