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-rw-r--r--js/src/jit-test/tests/ion/bug754713-1.js16
1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug754713-1.js b/js/src/jit-test/tests/ion/bug754713-1.js
new file mode 100644
index 000000000..cfe4dfe87
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug754713-1.js
@@ -0,0 +1,16 @@
+// Don't eliminate a phi if it has no SSA uses but its value is still
+// observable in the interpreter.
+var t = 100;
+function foo(ox) {
+ var x = ox;
+ var n = 0;
+ for (var i = 0; i < 90; i++) {
+ n += x.f.g;
+ if (i >= 80)
+ t;
+ }
+}
+function f() {}
+function g() {}
+f.prototype = {f:g};
+foo(new f());