tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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bug1858982.js (1039B)

      1 // Tests if instance registers were restored properly when call_ref is used
      2 // with tail calls.
      3 var t = wasmEvalText(`(module
      4    (type $t1 (func))
      5    (func $f0 (param funcref i32 i32 i32 i32 i32 i32 i32 i32 i32)
      6        local.get 0
      7        ref.cast (ref $t1)
      8        return_call_ref $t1
      9    )
     10    (func $f1 (param i32))
     11    (elem declare func $f)
     12    (func $f (param funcref)
     13        (local i32 i32 i32 i32)
     14        local.get 0
     15        i32.const 1
     16        i32.const 1
     17        i32.const 1
     18        i32.const 1
     19        i32.const 1
     20        i32.const 1
     21        i32.const 1
     22        i32.const 1
     23        i32.const 1
     24        return_call $f0
     25    )
     26    (func (export "f") (result funcref)
     27        ref.func $f
     28    )
     29 )`);
     30 
     31 var t2 = wasmEvalText(`(module
     32    (import "" "f" (func $fi (result funcref)))
     33    (type $t1 (func (param funcref)))
     34    (elem declare func $f2)
     35    (func $f2)
     36    (func (export "test")
     37        ref.func $f2
     38        call $fi
     39        ref.cast (ref $t1)
     40        call_ref $t1
     41    )
     42 )`, {"": {f:t.exports.f},});
     43 
     44 t2.exports.test();