This PR fixes an issue discovered by fuzzing. #8692 expanded our support for bitcasts, and also enabled them in the cranelift fuzzer for the RISC-V backend.
It turns out that bitcast.i128 with a i128 argument wasn't supported in the backend, but was technically legal CLIF.
This PR adds that lowering and a testcase to ensure this doesn't regress.
👋 Hey,
This PR fixes an issue discovered by fuzzing. #8692 expanded our support for bitcasts, and also enabled them in the cranelift fuzzer for the RISC-V backend.
It turns out that
bitcast.i128with ai128argument wasn't supported in the backend, but was technically legal CLIF.This PR adds that lowering and a testcase to ensure this doesn't regress.