624377 - TM: Different output (interpreter vs TM) with given testcase involving Object.isFrozen.call

Status: RESOLVED WORKSFORME

(Core :: JavaScript Engine, defect)

Description

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

try {
    x = function() {}
} catch(e) {}
for each(y in [0, 0, 0, 0, 0, 0, 0, 0, 0]) {
    try {
        (function() {
            Object.isFrozen.call(x, "")
        })()
    } catch(e) {
        print(e)
    }
}

without -j, outputs:

TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object

with -j, outputs:

TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: "" is not an object
TypeError: x is not an object

Comment 1

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

Another one that does not seem to be as complex:

function a(bb) {
    bb([bb].filter(Object.isExtensible))
}
for (w in [0]) {
    try {
        a()
    } catch(e) {
        print(e)
    }
}

Output without -m:

TypeError: bb is not an object

Output with -m:

TypeError: (void 0) is not an object

Comment 2

[Ryan VanderMeulen [:RyanVM]]

The testcases in comment #0 and comment #1 both give me the same results with the interpreter, -j, -m, and -m -n.