Enable reftypes tests on aarch64.

With bytecodealliance#1852, we now have support for reference types in the new backend
framework generally, and on aarch64 in particular. This PR removes the
test-ignore directive for reftypes tests on this platform.

Closes bytecodealliance#1886.

build.rs

@@ -202,12 +202,6 @@ fn ignore(testsuite: &str, testname: &str, strategy: &str) -> bool {
             // to be a big chunk of work to implement them all there!
             ("simd", _) if target.contains("aarch64") => return true,
 
-            // TODO(#1886): Ignore reference types tests if this isn't x64,
-            // because Cranelift only supports reference types on x64.
-            ("reference_types", _) => {
-                return env::var("CARGO_CFG_TARGET_ARCH").unwrap() != "x86_64";
-            }
-
             _ => {}
         },
         _ => panic!("unrecognized strategy"),

tests/all/func.rs

@@ -121,9 +121,6 @@ fn signatures_match() {
 }
 
 #[test]
-// Note: Cranelift only supports refrerence types (used in the wasm in this
-// test) on x64.
-#[cfg(target_arch = "x86_64")]
 fn import_works() -> Result<()> {
     static HITS: AtomicUsize = AtomicUsize::new(0);
 
@@ -444,9 +441,6 @@ fn func_write_nothing() -> anyhow::Result<()> {
 }
 
 #[test]
-// Note: Cranelift only supports refrerence types (used in the wasm in this
-// test) on x64.
-#[cfg(target_arch = "x86_64")]
 fn return_cross_store_value() -> anyhow::Result<()> {
     let wasm = wat::parse_str(
         r#"
@@ -479,9 +473,6 @@ fn return_cross_store_value() -> anyhow::Result<()> {
 }
 
 #[test]
-// Note: Cranelift only supports refrerence types (used in the wasm in this
-// test) on x64.
-#[cfg(target_arch = "x86_64")]
 fn pass_cross_store_arg() -> anyhow::Result<()> {
     let mut config = Config::new();
     config.wasm_reference_types(true);

tests/all/main.rs

@@ -19,14 +19,9 @@ mod traps;
 mod use_after_drop;
 mod wast;
 
-// TODO(#1886): Cranelift only supports reference types on x64.
-#[cfg(target_arch = "x86_64")]
 mod funcref;
-#[cfg(target_arch = "x86_64")]
 mod gc;
 
-/// A helper to compile a module in a new store with reference types enabled.
-#[cfg(target_arch = "x86_64")]
 pub(crate) fn ref_types_module(
     source: &str,
 ) -> anyhow::Result<(wasmtime::Store, wasmtime::Module)> {