Commit Graph

9 Commits

Author SHA1 Message Date
91aaf884d6 Update build of raytrace example to latest nightly
Closes #1935
2020-01-06 08:30:30 -08:00
9768ec9cab Remove extraneous -Ztimings flag 2019-11-22 07:59:46 -08:00
025b1d8bca Switch to Cargo's -Zbuild-std for building libstd (#1796)
This commit switches away from `xargo` to using `-Zbuild-std` to
building the standard library for the raytrace-parallel example (which
needs to rebuild std with new target features).
2019-09-26 12:32:50 -05:00
8cb792474c Fully update threading support for LLVM 9
Support has landed in rust-lang/rust for full support for LLVM 9's
interpretation of WebAssembly threads. This commit updates our thread
transformation pass to take all this into account, namely:

* The threadign pass now runs by default and is keyed on whether memory
  is shared, not off an env var.
* TLS is initialized in addition to memory on each thread.
* Stack pointer finding is tweaked to account for the TLS base also
  being a mutable global.
* The build of the parallel raytrace example was updated to use today's
  nightly.
2019-07-30 09:17:23 -07:00
03299a73b4 Fix raytrace example by using an older nightly
Unfortunately xargo is currently broken against master Rust, so let's
pin to an older nightly while that's sorted out
2019-04-25 19:47:59 -07:00
629a19b8de Bring back accidentally deleted raytrace build script 2019-03-21 14:32:27 -07:00
995be7c027 Replace target flags with --target
This commit deprecates the `--web`, `--no-modules`, and `--nodejs` flags
in favor of one `--target` flag. The motivation for this commit is to be
consistent between `wasm-bindgen` and `wasm-pack` so documentation for
one is applicable for the other (so we don't have to document everywhere
what the translation is between flags). Additionally this should make it
a bit easier to add new targets (if necessary) in the future as it won't
add to the proliferation of flags.

For now the old flags (like `--web`) continue to be accepted, but
they'll be removed during the next set of breaking changes for
`wasm-bindgen`.
2019-03-21 14:00:33 -07:00
cfa4aa0e3e Promote CI jobs to using stable Rust
Everything should be stable now so let's test it!
2018-10-28 13:28:02 -07:00
25b26f41e7 Implement support for WebAssembly threads
... and add a parallel raytracing demo!

This commit adds enough support to `wasm-bindgen` to produce a workable
wasm binary *today* with the experimental WebAssembly threads support
implemented in Firefox Nightly. I've tried to comment what's going on in
the commits and such, but at a high level the changes made here are:

* A new transformation, living in a new `wasm-bindgen-threads-xform`
  crate, prepares a wasm module for parallel execution. This performs a
  number of mundane tasks which I hope to detail in a blog post later on.
* The `--no-modules` output is enhanced with more support for when
  shared memory is enabled, allowing passing in the module/memory to
  initialize the wasm instance on multiple threads (sharing both module
  and memory).
* The `wasm-bindgen` crate now offers the ability, in `--no-modules`
  mode, to get a handle on the `WebAssembly.Module` instance.
* The example itself requires Xargo to recompile the standard library
  with atomics and an experimental feature enabled. Afterwards it
  experimentally also enables threading support in wasm-bindgen.

I've also added hopefully enough CI support to compile this example in a
builder so we can upload it and poke around live online. I hope to
detail more about the technical details here in a blog post soon as
well!
2018-10-23 01:20:18 -07:00