feat(ext/ffi): Support 64 bit parameters in Fast API calls (#15140)

Co-authored-by: Divy Srivastava <dj.srivastava23@gmail.com>

ext/ffi/jit_trampoline.rs

@@ -22,6 +22,10 @@ fn native_arg_to_c(ty: &NativeType) -> &'static str {
   match ty {
     NativeType::U8 | NativeType::U16 | NativeType::U32 => "uint32_t",
     NativeType::I8 | NativeType::I16 | NativeType::I32 => "int32_t",
+    NativeType::U64
+    | NativeType::I64
+    | NativeType::USize
+    | NativeType::ISize => "uint64_t",
     NativeType::Void => "void",
     NativeType::F32 => "float",
     NativeType::F64 => "double",
@@ -40,6 +44,8 @@ fn native_to_c(ty: &NativeType) -> &'static str {
     NativeType::Void => "void",
     NativeType::F32 => "float",
     NativeType::F64 => "double",
+    NativeType::U64 | NativeType::USize => "uint64_t",
+    NativeType::I64 | NativeType::ISize => "int64_t",
     _ => unimplemented!(),
   }
 }
@@ -148,6 +154,14 @@ mod tests {
     assert_eq!(
       codegen(vec![NativeType::I8, NativeType::U8], NativeType::I8),
       "#include <stdint.h>\n\nextern int8_t func(int8_t p0, uint8_t p1);\n\nint8_t func_trampoline(void* recv, int32_t p0, uint32_t p1) {\n  return func(p0, p1);\n}\n\n"
-    )
+    );
+    assert_eq!(
+      codegen(vec![NativeType::ISize, NativeType::U64], NativeType::Void),
+      "#include <stdint.h>\n\nextern void func(int64_t p0, uint64_t p1);\n\nvoid func_trampoline(void* recv, uint64_t p0, uint64_t p1) {\n  return func(p0, p1);\n}\n\n"
+    );
+    assert_eq!(
+      codegen(vec![NativeType::USize, NativeType::USize], NativeType::U32),
+      "#include <stdint.h>\n\nextern uint32_t func(uint64_t p0, uint64_t p1);\n\nuint32_t func_trampoline(void* recv, uint64_t p0, uint64_t p1) {\n  return func(p0, p1);\n}\n\n"
+    );
   }
 }

ext/ffi/lib.rs

@@ -673,12 +673,11 @@ impl From<&NativeType> for fast_api::Type {
       NativeType::F32 => fast_api::Type::Float32,
       NativeType::F64 => fast_api::Type::Float64,
       NativeType::Void => fast_api::Type::Void,
-      NativeType::Function
-      | NativeType::Pointer
-      | NativeType::I64
+      NativeType::I64
       | NativeType::ISize
       | NativeType::U64
-      | NativeType::USize => {
+      | NativeType::USize => fast_api::Type::Uint64,
+      NativeType::Function | NativeType::Pointer => {
         panic!("Cannot be fast api")
       }
     }
@@ -686,7 +685,7 @@ impl From<&NativeType> for fast_api::Type {
 }
 
 #[cfg(not(target_os = "windows"))]
-fn is_fast_api(rv: NativeType) -> bool {
+fn is_fast_api_rv(rv: NativeType) -> bool {
   !matches!(
     rv,
     NativeType::Function
@@ -698,6 +697,11 @@ fn is_fast_api(rv: NativeType) -> bool {
   )
 }
 
+#[cfg(not(target_os = "windows"))]
+fn is_fast_api_arg(rv: NativeType) -> bool {
+  !matches!(rv, NativeType::Function | NativeType::Pointer)
+}
+
 // Create a JavaScript function for synchronous FFI call to
 // the given symbol.
 fn make_sync_fn<'s>(
@@ -714,8 +718,8 @@ fn make_sync_fn<'s>(
   let mut fast_allocations: Option<*mut ()> = None;
   #[cfg(not(target_os = "windows"))]
   if !sym.can_callback
-    && !sym.parameter_types.iter().any(|t| !is_fast_api(*t))
-    && is_fast_api(sym.result_type)
+    && !sym.parameter_types.iter().any(|t| !is_fast_api_arg(*t))
+    && is_fast_api_rv(sym.result_type)
   {
     let ret = fast_api::Type::from(&sym.result_type);
 

test_ffi/src/lib.rs

@@ -74,6 +74,11 @@ pub extern "C" fn add_usize(a: usize, b: usize) -> usize {
   a + b
 }
 
+#[no_mangle]
+pub extern "C" fn add_usize_fast(a: usize, b: usize) -> u32 {
+  (a + b) as u32
+}
+
 #[no_mangle]
 pub extern "C" fn add_isize(a: isize, b: isize) -> isize {
   a + b

test_ffi/tests/bench.js

@@ -272,12 +272,20 @@ Deno.bench("nop_i64()", () => {
 });
 
 const { nop_usize } = dylib.symbols;
-Deno.bench("nop_usize()", () => {
+Deno.bench("nop_usize() number", () => {
+  nop_usize(100);
+});
+
+Deno.bench("nop_usize() bigint", () => {
   nop_usize(100n);
 });
 
 const { nop_isize } = dylib.symbols;
-Deno.bench("nop_isize()", () => {
+Deno.bench("nop_isize() number", () => {
+  nop_isize(100);
+});
+
+Deno.bench("nop_isize() bigint", () => {
   nop_isize(100n);
 });
 

test_ffi/tests/integration_tests.rs

@@ -63,6 +63,8 @@ fn basic() {
     true\n\
     579\n\
     579\n\
+    5\n\
+    5\n\
     579\n\
     8589934590n\n\
     -8589934590n\n\

test_ffi/tests/test.js

@@ -55,6 +55,7 @@ const dylib = Deno.dlopen(libPath, {
   "add_u64": { parameters: ["u64", "u64"], result: "u64" },
   "add_i64": { parameters: ["i64", "i64"], result: "i64" },
   "add_usize": { parameters: ["usize", "usize"], result: "usize" },
+  "add_usize_fast": { parameters: ["usize", "usize"], result: "u32" },
   "add_isize": { parameters: ["isize", "isize"], result: "isize" },
   "add_f32": { parameters: ["f32", "f32"], result: "f32" },
   "add_f64": { parameters: ["f64", "f64"], result: "f64" },
@@ -241,7 +242,7 @@ const before = performance.now();
 await sleepNonBlocking.call(100);
 console.log(performance.now() - before >= 100);
 
-const { add_u32 } = symbols;
+const { add_u32, add_usize_fast } = symbols;
 function addU32Fast(a, b) {
   return add_u32(a, b);
 };
@@ -251,6 +252,12 @@ console.log(addU32Fast(123, 456));
 %OptimizeFunctionOnNextCall(addU32Fast);
 console.log(addU32Fast(123, 456));
 
+function addU64Fast(a, b) { return add_usize_fast(a, b); };
+%PrepareFunctionForOptimization(addU64Fast);
+console.log(addU64Fast(2, 3));
+%OptimizeFunctionOnNextCall(addU64Fast);
+console.log(addU64Fast(2, 3));
+
 console.log(dylib.symbols.add_i32(123, 456));
 console.log(dylib.symbols.add_u64(0xffffffffn, 0xffffffffn));
 console.log(dylib.symbols.add_i64(-0xffffffffn, -0xffffffffn));