T0b1/wasmtime
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Support wasm select instruction with V128-typed operands on AArch64.

Browse Source 
* this requires upgrading to wasmparser 0.67.0.

* There are no CLIF side changes because the CLIF `select` instruction is
  polymorphic enough.

* on aarch64, there is unfortunately no conditional-move (csel) instruction on
  vectors.  This patch adds a synthetic instruction `VecCSel` which *does*
  behave like that.  At emit time, this is emitted as an if-then-else diamond
  (4 insns).

* aarch64 implementation is otherwise straightforwards.
This commit is contained in:
Julian Seward
2020-11-11 17:09:57 +01:00
committed by julian-seward1
parent 9ced345aed
commit 41e87a2f99
15 changed files with 122 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
crates/debug/Cargo.toml
View File

@@ -13,7 +13,7 @@ edition = "2018"
[dependencies]
gimli = "0.23.0"
wasmparser = "0.66.0"
wasmparser = "0.67.0"
object = { version = "0.22.0", default-features = false, features = ["read", "write"] }
wasmtime-environ = { path = "../environ", version = "0.21.0" }
target-lexicon = { version = "0.11.0", default-features = false }