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Enable f16 and f128 on targets that were fixed in LLVM21 LLVM21 fixed the new float types on a number of targets: * SystemZ gained f16 support https://github.com/llvm/llvm-project/pull/109164 * Hexagon now uses soft f16 to avoid recursion bugs https://github.com/llvm/llvm-project/pull/130977 * Mips now correctly handles f128 (actually since LLVM20) https://github.com/llvm/llvm-project/pull/117525 * f128 is now correctly aligned when passing the stack on x86 https://github.com/llvm/llvm-project/pull/138092 Thus, enable the types on relevant targets for LLVM > 21.0.0. NVPTX also gained handling of f128 as a storage type, but it lacks support for basic math operations so is still disabled here. try-job: dist-i586-gnu-i586-i686-musl try-job: dist-i686-linux try-job: dist-i686-msvc try-job: dist-s390x-linux try-job: dist-various-1 try-job: dist-various-2 try-job: dist-x86_64-linux try-job: i686-gnu-1 try-job: i686-gnu-2 try-job: i686-msvc-1 try-job: i686-msvc-2 try-job: test-various
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.