1 files changed, 97 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arguments/inline-arguments-slice-5.js b/js/src/jit-test/tests/arguments/inline-arguments-slice-5.js
new file mode 100644
index 0000000000..725b14b752
--- /dev/null
+++ b/js/src/jit-test/tests/arguments/inline-arguments-slice-5.js
@@ -0,0 +1,97 @@
+// |jit-test| --fast-warmup
+
+function blackhole() {
+  // Prevent Ion from optimising away this function and its arguments.
+  with ({});
+}
+
+function inner() {
+  // Compile-time constants after GVN, but not during scalar replacement.
+  // We don't want these to be constants during scalar replacement to ensure
+  // we don't optimise away the slice() call.
+  const zero = Math.pow(0, 1);
+  const one = Math.pow(1, 1);
+  const two = Math.pow(2, 1);
+  const three = Math.pow(3, 1);
+  const four = Math.pow(4, 1);
+
+  // Test with constant |begin| and |count| a constant after GVN.
+  {
+    let a0 = Array.prototype.slice.call(arguments, 0, zero);
+    let a1 = Array.prototype.slice.call(arguments, 0, one);
+    let a2 = Array.prototype.slice.call(arguments, 0, two);
+    let a3 = Array.prototype.slice.call(arguments, 0, three);
+    let a4 = Array.prototype.slice.call(arguments, 0, four);
+    blackhole(a0, a1, a2, a3, a4);
+  }
+  {
+    let a0 = Array.prototype.slice.call(arguments, 1, zero);
+    let a1 = Array.prototype.slice.call(arguments, 1, one);
+    let a2 = Array.prototype.slice.call(arguments, 1, two);
+    let a3 = Array.prototype.slice.call(arguments, 1, three);
+    let a4 = Array.prototype.slice.call(arguments, 1, four);
+    blackhole(a0, a1, a2, a3, a4);
+  }
+
+  // Same as above, but this time |begin| isn't a constant during scalar replacement.
+  {
+    let a0 = Array.prototype.slice.call(arguments, zero, zero);
+    let a1 = Array.prototype.slice.call(arguments, zero, one);
+    let a2 = Array.prototype.slice.call(arguments, zero, two);
+    let a3 = Array.prototype.slice.call(arguments, zero, three);
+    let a4 = Array.prototype.slice.call(arguments, zero, four);
+    blackhole(a0, a1, a2, a3, a4);
+  }
+  {
+    let a0 = Array.prototype.slice.call(arguments, one, zero);
+    let a1 = Array.prototype.slice.call(arguments, one, one);
+    let a2 = Array.prototype.slice.call(arguments, one, two);
+    let a3 = Array.prototype.slice.call(arguments, one, three);
+    let a4 = Array.prototype.slice.call(arguments, one, four);
+    blackhole(a0, a1, a2, a3, a4);
+  }
+}
+
+// Ensure |inner| can be inlined.
+assertEq(isSmallFunction(inner), true);
+
+// Zero arguments.
+function outer0() {
+  trialInline();
+  return inner();
+}
+
+// One argument.
+function outer1() {
+  trialInline();
+  return inner(1);
+}
+
+// Two arguments.
+function outer2() {
+  trialInline();
+  return inner(1, 2);
+}
+
+// Three arguments.
+function outer3() {
+  trialInline();
+  return inner(1, 2, 3);
+}
+
+// Four arguments. (|inner| can't be inlined anymore!)
+function outer4() {
+  trialInline();
+  return inner(1, 2, 3, 4);
+}
+
+// Don't Ion compile the top-level script.
+with ({});
+
+for (var i = 0; i < 50; i++) {
+  outer0();
+  outer1();
+  outer2();
+  outer3();
+  outer4();
+}