Triweekly update from the GHC DevX team at IOG.
Previous updates can be found here.
Luite: Fixed some bugs in the new JStg intermediate representation.
newIdents was broken, which resulted in the same identifiers
being generated multiple times (see GHC!11569. Some local variable declarations
were missing, causing global variables to be used instead (or programs to fail with an error in strict mode). See
Luite: Continued work on the JStg optimizer. Floating of single-use values into expressions (removing an intermediate assignment) and constant folding with integers and booleans in expressions now work. See GHC!11507 for work in progress.
Josh: Fixed several bugs remaining in
Josh: Finished updating
be officially released soon, for now see:
Sylvain: fixed support for "wrapper" and "dynamic" FFI imports. This is part of the work towards linking C sources with JS sources
using Emscripten. This issue came while compiling
Sylvain: helped debugging
iserv-proxy-interpreter which was
internal error:Evaluated a CAF that was GC'd! (see iserv-proxy!1).
It turned out that this interpreter didn't disable CAF garbage collection contrary to
and the non-proxy external
Sylvain: fixed a compiler panic triggered by some package database state with
This has been reported quite a few times on the GHC tracker GHC#21097,
and internally on IOG channels. Before that a workaround was to delete cabal-install's store (
~/.cabal/store on Linux).
Jeff: Has been helping the Cardano team migrate to GHC-9.6.