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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/bindings/test/test_throwing_method_noDCE.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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diff --git a/dom/bindings/test/test_throwing_method_noDCE.html b/dom/bindings/test/test_throwing_method_noDCE.html
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+<!DOCTYPE html>
+<meta charset=utf-8>
+<title>Test that we don't DCE functions that can throw</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<div id="log"></div>
+<script>
+/* global test, assert_true */
+test(function() {
+ function test(root) {
+ var threw = false;
+ try {
+ root.querySelectorAll("");
+ } catch (e) { threw = true; }
+ // Hot loop to make sure the JIT heuristics ion-compile this function even
+ // though it's throwing exceptions (which would normally make us back off
+ // of ion compilation).
+ for (var i = 0; i < 1500; i++) {
+ // empty
+ }
+ return threw;
+ }
+
+ var threw = false;
+ var el = document.createElement("div");
+ for (var i = 0; i < 200; i++)
+ threw = test(el);
+ assert_true(threw);
+}, "Shouldn't optimize away throwing functions");
+</script>