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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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5
crates/runtime/src/vmcontext.rs
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@@ -577,10 +577,7 @@ impl VMBuiltinFunctionsArray {
wasmtime_table_grow as usize;
ptrs[BuiltinFunctionIndex::table_init().index() as usize] = wasmtime_table_init as usize;
ptrs[BuiltinFunctionIndex::elem_drop().index() as usize] = wasmtime_elem_drop as usize;
ptrs[BuiltinFunctionIndex::defined_memory_copy().index() as usize] =
wasmtime_defined_memory_copy as usize;
ptrs[BuiltinFunctionIndex::imported_memory_copy().index() as usize] =
wasmtime_imported_memory_copy as usize;
ptrs[BuiltinFunctionIndex::memory_copy().index() as usize] = wasmtime_memory_copy as usize;
ptrs[BuiltinFunctionIndex::memory_fill().index() as usize] = wasmtime_memory_fill as usize;
ptrs[BuiltinFunctionIndex::imported_memory_fill().index() as usize] =
wasmtime_imported_memory_fill as usize;