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Add initial support for the multi-memory proposal (#2263)

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This commit adds initial (gated) support for the multi-memory wasm
proposal. This was actually quite easy since almost all of wasmtime
already expected multi-memory to be implemented one day. The only real
substantive change is the `memory.copy` intrinsic changes, which now
accounts for the source/destination memories possibly being different.
This commit is contained in:
Alex Crichton
2020-10-13 19:13:52 -05:00
committed by GitHub
parent c2d01fe56f
commit e659d5cecd
14 changed files with 246 additions and 107 deletions
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6
crates/environ/src/builtin.rs
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@@ -18,10 +18,8 @@ macro_rules! foreach_builtin_function {
table_init(vmctx, i32, i32, i32, i32, i32) -> ();
/// Returns an index for wasm's `elem.drop`.
elem_drop(vmctx, i32) -> ();
/// Returns an index for wasm's `memory.copy` for locally defined memories.
defined_memory_copy(vmctx, i32, i32, i32, i32) -> ();
/// Returns an index for wasm's `memory.copy` for imported memories.
imported_memory_copy(vmctx, i32, i32, i32, i32) -> ();
/// Returns an index for wasm's `memory.copy`
memory_copy(vmctx, i32, i32, i32, i32, i32) -> ();
/// Returns an index for wasm's `memory.fill` for locally defined memories.
memory_fill(vmctx, i32, i32, i32, i32) -> ();
/// Returns an index for wasm's `memory.fill` for imported memories.