Merge cranelift/wasmtime fuzzing

cranelift/.github/workflows/main.yml

@@ -14,17 +14,6 @@ jobs:
     - run: find ./target/doc -maxdepth 1 -type d -name "cranelift*" | xargs -I{} cargo deadlinks --dir {}
       name: Run cargo-deadlinks
 
-    # Ensure fuzzer works by running it with a single input
-    - run: cargo install cargo-fuzz
-      if: matrix.rust == 'nightly'
-    - run: |
-        fuzz_module="ffaefab69523eb11935a9b420d58826c8ea65c4c"
-        cargo fuzz run fuzz_translate_module fuzz/corpus/fuzz_translate_module/$fuzz_module
-      env:
-        RUST_BACKTRACE: 1
-      if: matrix.rust == 'nightly'
-      continue-on-error: true
-
   meta_determinist_check:
     name: Meta deterministic check
     runs-on: ubuntu-latest

cranelift/fuzz/Cargo.toml

@@ -1,30 +0,0 @@
-[package]
-name = "clif-wasm-fuzz"
-version = "0.0.1"
-authors = ["foote@fastly.com"]
-publish = false
-edition = "2018"
-
-[package.metadata]
-cargo-fuzz = true
-
-[dependencies]
-cargo-fuzz = "*"
-binaryen = { git = "https://github.com/pepyakin/binaryen-rs.git" }
-libfuzzer-sys = { git = "https://github.com/rust-fuzz/libfuzzer-sys.git" }
-cranelift-codegen = { path = "../codegen" }
-cranelift-wasm = { path = "../wasm" }
-cranelift-reader = { path = "../reader" }
-target-lexicon = "0.10"
-
-# Prevent this from interfering with workspaces
-[workspace]
-members = ["."]
-
-[[bin]]
-name = "fuzz_translate_module"
-path = "fuzz_translate_module.rs"
-
-[[bin]]
-name = "fuzz_reader_parse_test"
-path = "fuzz_reader_parse_test.rs"

cranelift/fuzz/fuzz_reader_parse_test.rs

@@ -1,12 +0,0 @@
-#![no_main]
-#[macro_use]
-extern crate libfuzzer_sys;
-extern crate cranelift_reader;
-use std::str;
-
-fuzz_target!(|data: &[u8]| {
-    if let Ok(s) = str::from_utf8(data) {
-        let options = cranelift_reader::ParseOptions::default();
-        let _ = cranelift_reader::parse_test(s, options);
-    }
-});

cranelift/fuzz/fuzz_translate_module.rs

@@ -1,25 +0,0 @@
-#![no_main]
-
-#[macro_use]
-extern crate libfuzzer_sys;
-extern crate binaryen;
-extern crate cranelift_codegen;
-extern crate cranelift_wasm;
-#[macro_use]
-extern crate target_lexicon;
-
-use cranelift_codegen::{isa, settings};
-use cranelift_wasm::{translate_module, DummyEnvironment, ReturnMode};
-use std::str::FromStr;
-
-fuzz_target!(|data: &[u8]| {
-    let binaryen_module = binaryen::tools::translate_to_fuzz_mvp(data);
-
-    let wasm = binaryen_module.write();
-
-    let flags = settings::Flags::new(settings::builder());
-    let triple = triple!("x86_64");
-    let isa = isa::lookup(triple).unwrap().finish(flags);
-    let mut dummy_environ = DummyEnvironment::new(isa.frontend_config(), ReturnMode::NormalReturns, false);
-    translate_module(&wasm, &mut dummy_environ).unwrap();
-});