wasm-indirect-bad-sig-gc.js

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// |jit-test| skip-if: !wasmDebuggingEnabled() || !hasFunction["gczeal"]

// A GC during an IndirectCallBadSig trap whose callee frame has been unwound

// must trace the caller's frame using the caller's stackmap.

var g = newGlobal({newCompartment: true});

var dbg = new Debugger(g);

g.bin = wasmTextToBinary(`(module

  (type $callerT (func (result i32)))

  (type $calleeT (func (param externref externref externref externref

                              externref externref externref externref

                              externref externref externref externref)

                       (result i32)))

  (table funcref (elem $callee))

  (func $callee (type $calleeT) (i32.const 1))

  (func $middle (param externref) (result i32)

    (call_indirect (type $callerT) (i32.const 0)))

  (func (export "outer") (param externref) (result i32)

    (call $middle (local.get 0))))`);

g.eval(`

  var ins = new WebAssembly.Instance(new WebAssembly.Module(bin));

  var caught = 0;

  gczeal(2, 1);

  for (var i = 0; i < 20; i++) {

    try {

      ins.exports.outer({});

    } catch (e) {

      caught++;

  gczeal(0);

`);

assertEq(g.caught, 20);