Cranelift CLIF-level differential fuzzer

cranelift/Cargo.toml

@@ -29,6 +29,7 @@ cranelift-object = { path = "object", version = "0.75.0" }
 cranelift-jit = { path = "jit", version = "0.75.0" }
 cranelift-preopt = { path = "preopt", version = "0.75.0" }
 cranelift = { path = "umbrella", version = "0.75.0" }
+cranelift-fuzzgen = { path = "fuzzgen", version = "0.75.0" }
 filecheck = "0.5.0"
 log = "0.4.8"
 termcolor = "1.1.2"

cranelift/filetests/src/function_runner.rs

@@ -92,13 +92,17 @@ impl SingleFunctionCompiler {
 }
 
 #[derive(Error, Debug)]
+/// Compilation Error when compiling a function
 pub enum CompilationError {
  #[error("Cross-compilation not currently supported; use the host's default calling convention \
  or remove the specified calling convention in the function signature to use the host's default.")]
+ /// This Target ISA is invalid for the current host
  InvalidTargetIsa,
  #[error("Cranelift codegen error")]
+ /// Cranelift codegen error
  CodegenError(#[from] CodegenError),
  #[error("Memory mapping error")]
+ /// Memory mapping error
  IoError(#[from] std::io::Error),
 }
 

cranelift/filetests/src/lib.rs

@@ -30,7 +30,7 @@ use std::path::Path;
 use std::time;
 
 mod concurrent;
-mod function_runner;
+pub mod function_runner;
 mod match_directive;
 mod runner;
 mod runone;

cranelift/fuzz/.gitignore

@@ -0,0 +1,4 @@
+
+target
+corpus
+artifacts