Futhark

Sun Haoran has implemented unnamed typed holes, with syntax ???.

Sun Haoran has implemented the beginnings of a language server: futhark lsp. A VSCode language extension is available on the marketplace, but the language server should work with any editor.

Crucial new command: futhark thanks.

The GPU backends now support a caching mechanism for JIT-compiled code, significantly improving startup times. Use the futhark_context_config_set_cache_file() in the C API, the --cache-file option on executables, or the --cache-extension option on futhark test and futhark bench. These also work for the non-GPU backends, but currently have no effect. (#1614)

Aleksander Junge has improved futhark bench such that it intelligently chooses how many runs to perform (#1335).

Incomplete simplification would cause some instances of nested parallelism to require irregular allocations (#1610).

Missing alias checking for a simplification rule related to in-place updates (#1615, #1628).

Incorrect code generation for certain copies of transposed arrays (#1627).

Fusion would mistakenly try to treat some loops with irregular sizes (#1631).

Memory annotation bug for non-inlined functions (#1634).