From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 js/src/jit-test/tests/ion/is-constructing.js | 62 ++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 js/src/jit-test/tests/ion/is-constructing.js

(limited to 'js/src/jit-test/tests/ion/is-constructing.js')

diff --git a/js/src/jit-test/tests/ion/is-constructing.js b/js/src/jit-test/tests/ion/is-constructing.js
new file mode 100644
index 000000000..fc8abcbae
--- /dev/null
+++ b/js/src/jit-test/tests/ion/is-constructing.js
@@ -0,0 +1,62 @@
+var isConstructing = getSelfHostedValue("_IsConstructing");
+
+function testBasic() {
+    var f = function(expected) {
+	with(this) {}; // Don't inline.
+	assertEq(isConstructing(), expected);
+    };
+    for (var i=0; i<40; i++) {
+	f(false);
+	new f(true);
+    }
+}
+testBasic();
+
+function testGeneric() {
+    var f1 = function(expected) {
+	with(this) {};
+	assertEq(isConstructing(), expected);
+    };
+    var f2 = function(expected) {
+	assertEq(isConstructing(), expected);
+    }
+    var funs = [f1, f2];
+    for (var i=0; i<40; i++) {
+	var f = funs[i % 2];
+	f(false);
+	new f(true);
+    }
+}
+testGeneric();
+
+function testArgsRectifier() {
+    var f = function(x) {
+	with(this) {};
+	assertEq(isConstructing(), true);
+    };
+    for (var i=0; i<40; i++)
+	new f();
+}
+testArgsRectifier();
+
+function testBailout() {
+    var f1 = function(x, expected) {
+	if (x > 20) {
+	    bailout();
+	    assertEq(isConstructing(), expected);
+	}
+    };
+    var f2 = function(x) {
+	return new f1(x, true);
+    };
+    var f3 = function(x) {
+	return f1(x, false);
+    };
+    for (var i=0; i<40; i++) {
+	f2(i);
+	f3(i);
+    }
+    for (var i=0; i<40; i++)
+	f1(i, false);
+}
+testBailout();
-- 
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