Add caching support for Singlepass backend.

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - [#1006](https://github.com/wasmerio/wasmer/pull/1006) Fix minor panic issue when `wasmer::compile_with` called with llvm backend
 - [#1009](https://github.com/wasmerio/wasmer/pull/1009) Enable LLVM verifier for all tests, add new llvm-backend-tests crate.
+- [#1022](https://github.com/wasmerio/wasmer/pull/1022) Add caching support for Singlepass backend.
 - [#1004](https://github.com/wasmerio/wasmer/pull/1004) Add the Auto backend to enable to adapt backend usage depending on wasm file executed.
 
 ## 0.11.0 - 2019-11-22

docs/feature_matrix.md

@@ -4,11 +4,11 @@
 
 |   | Singlepass | Cranelift | LLVM |
 | - | :-: | :-: | :-: |
-| Caching | ⬜ | ✅ | ✅ |
+| Caching | ✅ | ✅ | ✅ |
 | Emscripten | ✅ | ✅ | ✅ |
 | Metering | ✅ | ⬜ | ✅ |
 | Multi-value return | ⬜ | ⬜ | ⬜ |
-| OSR | 🔄 | ❓ | ❓ |
+| OSR | 🔄 | ⬜ | 🔄 |
 | SIMD | ⬜ | ⬜ | ✅ |
 | WASI | ✅ | ✅ | ✅ |
 | WASMER_BACKTRACE | ✅ | ⬜ | ⬜ |

lib/runtime-core/src/state.rs

@@ -7,11 +7,11 @@ use std::collections::BTreeMap;
 use std::ops::Bound::{Included, Unbounded};
 
 /// An index to a register
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Serialize, Deserialize)]
 pub struct RegisterIndex(pub usize);
 
 /// A kind of wasm or constant value
-#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash)]
+#[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, Serialize, Deserialize)]
 pub enum WasmAbstractValue {
     /// A wasm runtime value
     Runtime,
@@ -20,7 +20,7 @@ pub enum WasmAbstractValue {
 }
 
 /// A container for the state of a running wasm instance.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct MachineState {
     /// Stack values.
     pub stack_values: Vec<MachineValue>,
@@ -37,7 +37,7 @@ pub struct MachineState {
 }
 
 /// A diff of two `MachineState`s.
-#[derive(Clone, Debug, Default)]
+#[derive(Clone, Debug, Default, Serialize, Deserialize)]
 pub struct MachineStateDiff {
     /// Last.
     pub last: Option<usize>,
@@ -63,7 +63,7 @@ pub struct MachineStateDiff {
 }
 
 /// A kind of machine value.
-#[derive(Clone, Debug, Eq, PartialEq, Hash)]
+#[derive(Clone, Debug, Eq, PartialEq, Hash, Serialize, Deserialize)]
 pub enum MachineValue {
     /// Undefined.
     Undefined,
@@ -86,7 +86,7 @@ pub enum MachineValue {
 }
 
 /// A map of function states.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct FunctionStateMap {
     /// Initial.
     pub initial: MachineState,
@@ -111,7 +111,7 @@ pub struct FunctionStateMap {
 }
 
 /// A kind of suspend offset.
-#[derive(Clone, Copy, Debug)]
+#[derive(Clone, Copy, Debug, Serialize, Deserialize)]
 pub enum SuspendOffset {
     /// A loop.
     Loop(usize),
@@ -122,7 +122,7 @@ pub enum SuspendOffset {
 }
 
 /// Info for an offset.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct OffsetInfo {
     /// End offset.
     pub end_offset: usize, // excluded bound
@@ -133,7 +133,7 @@ pub struct OffsetInfo {
 }
 
 /// A map of module state.
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Serialize, Deserialize)]
 pub struct ModuleStateMap {
     /// Local functions.
     pub local_functions: BTreeMap<usize, FunctionStateMap>,

lib/runtime/src/cache.rs

@@ -129,7 +129,7 @@ impl Cache for FileSystemCache {
     }
 }
 
-#[cfg(all(test, not(feature = "singlepass")))]
+#[cfg(test)]
 mod tests {
 
     use super::*;

lib/singlepass-backend/Cargo.toml

@@ -19,3 +19,6 @@ byteorder = "1.3"
 nix = "0.15"
 libc = "0.2.60"
 smallvec = "0.6"
+serde = "1.0"
+serde_derive = "1.0"
+bincode = "1.2"