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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /js/src/jit-test/tests/ion/testStringFromCodePoint.js
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'js/src/jit-test/tests/ion/testStringFromCodePoint.js')
-rw-r--r--js/src/jit-test/tests/ion/testStringFromCodePoint.js32
1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/testStringFromCodePoint.js b/js/src/jit-test/tests/ion/testStringFromCodePoint.js
new file mode 100644
index 000000000..0e03f2f48
--- /dev/null
+++ b/js/src/jit-test/tests/ion/testStringFromCodePoint.js
@@ -0,0 +1,32 @@
+setJitCompilerOption("ion.warmup.trigger", 20);
+
+function testBailout() {
+ function f(v, r) {
+ for (var i = 0; i < 50; ++i) {
+ // Ensure DCE and LICM don't eliminate calls to fromCodePoint in
+ // case the input argument is not a valid code point.
+ if (i === 0) {
+ r();
+ }
+ String.fromCodePoint(v);
+ String.fromCodePoint(v);
+ String.fromCodePoint(v);
+ }
+ }
+
+ var result = [];
+ function r() {
+ result.push("ok");
+ }
+
+ do {
+ result.length = 0;
+ try {
+ f(0, r);
+ f(0, r);
+ f(0x10ffff + 1, r);
+ } catch (e) {}
+ assertEq(result.length, 3);
+ } while (!inIon());
+}
+testBailout();