Investigate -fprefer-byte-code with head.hackage
The goal of this ticket is to run head.hackage
with -fwrite-if-simplified-core -fbyte-code-and-object-code -fprefer-byte-code
, and investigate any failures (possibly opening new tickets). This requires GHC 9.6/master with fixes to known bugs: !9750 (closed) and !9863 (closed).
The rationale is that -fprefer-byte-code
can run the interpreter on optimised code and this hasn't been tested thoroughly yet.
If it goes well, potentially we could support ghci -O
.