Add Rust benchmarks for base64, sha512 and regex matching

Author: Lubrsi

README.md

@@ -29,3 +29,21 @@ You may find it useful to use [WebAssembly Binary Toolkit](https://github.com/We
 ### .wat files
 
 If you want to benchmark a specific instruction sequence, you can write a WebAssembly Text Format (.wat) file and compile it to Wasm with the wat2wasm tool from the [WebAssembly Binary Toolkit](https://github.com/WebAssembly/wabt).
+
+## WebAssembly Rust Benchmarks (WasmRustBench)
+
+This folder contains pre-compiled WebAssembly benchmarks written in Rust. Rust is currently a popular language to use for Wasm and allows using crates such as regex in Wasm benchmarks.
+
+Install [Rust as per the instructions on their website](https://www.rust-lang.org/learn/get-started) and then install the wasm32-wasip1 target with:
+```bash
+rustup target add wasm32-wasip1
+```
+
+To add a new benchmark, copy the `template` folder within the `sources` folder, set the package name in Cargo.toml to the name of your benchmark and add your benchmark code to `main` in `src/main.rs`.
+
+Compile Rust with:
+```bash
+cargo build --release
+```
+
+After compiling, copy the resulting `.wasm` file from the `target/wasm32-wasip1/release` folder into the `WasmRustBench` folder.

WasmRustBench/base64-bench.wasm

@@ -0,0 +1,21 @@
+# Generated by Cargo
+# will have compiled files and executables
+debug
+target
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# MSVC Windows builds of rustc generate these, which store debugging information
+*.pdb
+
+# Generated by cargo mutants
+# Contains mutation testing data
+**/mutants.out*/
+
+# RustRover
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

WasmRustBench/regex-match-bench.wasm

@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-wasip1"

WasmRustBench/sha512-bench.wasm

@@ -0,0 +1,7 @@
+[package]
+name = "base64-bench"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+base64 = "0.22.1"

WasmRustBench/sources/.gitignore

@@ -0,0 +1,8 @@
+use base64::{engine::general_purpose::STANDARD, Engine as _};
+
+fn main() {
+    for _n in 1..1000000 {
+        let encoded = STANDARD.encode(b"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.");
+        let _ = STANDARD.decode(encoded);
+    }
+}

WasmRustBench/sources/base64-bench/.cargo/config.toml

@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-wasip1"