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[Cranelift][Atomics] Add address folding for atomic notify/wait. (#2556)

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* fold address in wasm wait and notify ops

* add atomics addr folding tests
This commit is contained in:
Yury Delendik
2021-01-08 11:55:21 -06:00
committed by GitHub
parent 5de5bf1565
commit 3580205f12
8 changed files with 307 additions and 16 deletions
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87
crates/runtime/src/libcalls.rs
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@@ -58,7 +58,7 @@
use crate::externref::VMExternRef;
use crate::table::Table;
use crate::traphandlers::raise_lib_trap;
use crate::traphandlers::{raise_lib_trap, Trap};
use crate::vmcontext::{VMCallerCheckedAnyfunc, VMContext};
use std::mem;
use std::ptr::{self, NonNull};
@@ -496,3 +496,88 @@ pub unsafe extern "C" fn wasmtime_externref_global_set(
let old = mem::replace((*global).as_externref_mut(), externref);
drop(old);
}
#[derive(Debug)]
struct Unimplemented(&'static str);
impl std::error::Error for Unimplemented {}
impl std::fmt::Display for Unimplemented {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::result::Result<(), std::fmt::Error> {
write!(f, "unimplemented: {}", self.0)
}
}
/// Implementation of `memory.atomic.notify` for locally defined memories.
pub unsafe extern "C" fn wasmtime_memory_atomic_notify(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_count: u32,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_memory_atomic_notify) unsupported",
))));
}
/// Implementation of `memory.atomic.notify` for imported memories.
pub unsafe extern "C" fn wasmtime_imported_memory_atomic_notify(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_count: u32,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_imported_memory_atomic_notify) unsupported",
))));
}
/// Implementation of `memory.atomic.wait32` for locally defined memories.
pub unsafe extern "C" fn wasmtime_memory_atomic_wait32(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_expected: u32,
_timeout: u64,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_memory_atomic_wait32) unsupported",
))));
}
/// Implementation of `memory.atomic.wait32` for imported memories.
pub unsafe extern "C" fn wasmtime_imported_memory_atomic_wait32(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_expected: u32,
_timeout: u64,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_imported_memory_atomic_wait32) unsupported",
))));
}
/// Implementation of `memory.atomic.wait64` for locally defined memories.
pub unsafe extern "C" fn wasmtime_memory_atomic_wait64(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_expected: u64,
_timeout: u64,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_memory_atomic_wait32) unsupported",
))));
}
/// Implementation of `memory.atomic.wait32` for imported memories.
pub unsafe extern "C" fn wasmtime_imported_memory_atomic_wait64(
_vmctx: *mut VMContext,
_memory_index: u32,
_addr: u32,
_expected: u64,
_timeout: u64,
) -> u32 {
raise_lib_trap(Trap::User(Box::new(Unimplemented(
"wasm atomics (fn wasmtime_imported_memory_atomic_wait64) unsupported",
))));
}