Merging upstream version 126.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 462 insertions, 0 deletions

diff --git a/js/src/jit-test/tests/ion/apply-native-arguments-object.js b/js/src/jit-test/tests/ion/apply-native-arguments-object.js
new file mode 100644
index 0000000000..e06a5e0965
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-arguments-object.js
@@ -0,0 +1,46 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function escape() {
+  with ({}) ;
+}
+
+function f() {
+  // Let |arguments| escape to force the allocation of an arguments object.
+  escape(arguments);
+
+  // FunApply to a native function with an arguments object.
+  return Array.apply(null, arguments);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-arguments.js b/js/src/jit-test/tests/ion/apply-native-arguments.js
new file mode 100644
index 0000000000..3d6729ca76
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-arguments.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f() {
+  // FunApply to a native function with frame arguments.
+  return Array.apply(null, arguments);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-array.js b/js/src/jit-test/tests/ion/apply-native-array.js
new file mode 100644
index 0000000000..0dfa2df947
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-array.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f(x) {
+  // FunApply to a native function with an array.
+  return Array.apply(null, x);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f(x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadcall-arguments.js b/js/src/jit-test/tests/ion/apply-native-spreadcall-arguments.js
new file mode 100644
index 0000000000..9f769e4a59
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadcall-arguments.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f() {
+  // SpreadCall to a native function with frame arguments.
+  return Array(...arguments);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadcall-array.js b/js/src/jit-test/tests/ion/apply-native-spreadcall-array.js
new file mode 100644
index 0000000000..24e5621484
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadcall-array.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f(x) {
+  // SpreadCall to a native function with an array.
+  return Array(...x);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f(x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadcall-rest.js b/js/src/jit-test/tests/ion/apply-native-spreadcall-rest.js
new file mode 100644
index 0000000000..ba7038244d
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadcall-rest.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f(...x) {
+  // SpreadCall to a native function with rest-args.
+  return Array(...x);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadnew-arguments.js b/js/src/jit-test/tests/ion/apply-native-spreadnew-arguments.js
new file mode 100644
index 0000000000..7e31cdcbd6
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadnew-arguments.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f() {
+  // SpreadNew to a native function with frame arguments.
+  return new Array(...arguments);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadnew-array.js b/js/src/jit-test/tests/ion/apply-native-spreadnew-array.js
new file mode 100644
index 0000000000..5c716f48b4
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadnew-array.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f(x) {
+  // SpreadNew to a native function with an array.
+  return new Array(...x);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f(x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadnew-newtarget.js b/js/src/jit-test/tests/ion/apply-native-spreadnew-newtarget.js
new file mode 100644
index 0000000000..9ffe53277b
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadnew-newtarget.js
@@ -0,0 +1,66 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+class ArrayWithExplicitConstructor extends Array {
+  constructor(...args) {
+    super(...args);
+  }
+}
+
+class ArrayWithImplicitConstructor extends Array {
+  constructor(...args) {
+    super(...args);
+  }
+}
+
+function f(...x) {
+  return new ArrayWithExplicitConstructor(...x);
+}
+
+function g(...x) {
+  return new ArrayWithImplicitConstructor(...x);
+}
+
+// Don't inline |f| and |g| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+  assertEq(Object.getPrototypeOf(result), ArrayWithExplicitConstructor.prototype);
+}
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = g.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+  assertEq(Object.getPrototypeOf(result), ArrayWithImplicitConstructor.prototype);
+}
diff --git a/js/src/jit-test/tests/ion/apply-native-spreadnew-rest.js b/js/src/jit-test/tests/ion/apply-native-spreadnew-rest.js
new file mode 100644
index 0000000000..58de8fa239
--- /dev/null
+++ b/js/src/jit-test/tests/ion/apply-native-spreadnew-rest.js
@@ -0,0 +1,39 @@
+load(libdir + "array-compare.js");
+
+const xs = [
+  // Zero arguments.
+  [],
+
+  // Single argument.
+  [1],
+
+  // Few arguments. Even number of arguments.
+  [1, 2],
+
+  // Few arguments. Odd number of arguments.
+  [1, 2, 3],
+
+  // Many arguments. Even number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9, 0],
+
+  // Many arguments. Odd number of arguments.
+  [1, 2, 3, 4, 5, 6, 7, 8, 9],
+];
+
+function f(...x) {
+  // SpreadNew to a native function with rest-args.
+  return new Array(...x);
+}
+
+// Don't inline |f| into the top-level script.
+with ({}) ;
+
+for (let i = 0; i < 400; ++i) {
+  let x = xs[i % xs.length];
+
+  // NB: Array(1) creates the array `[,]`.
+  let expected = x.length !== 1 ? x : [,];
+
+  let result = f.apply(null, x);
+  assertEq(arraysEqual(result, expected), true);
+}
diff --git a/js/src/jit-test/tests/ion/recover-atomics-islockfree.js b/js/src/jit-test/tests/ion/recover-atomics-islockfree.js
new file mode 100644
index 0000000000..2a57afd49b
--- /dev/null
+++ b/js/src/jit-test/tests/ion/recover-atomics-islockfree.js
@@ -0,0 +1,25 @@
+// |jit-test| --fast-warmup; --ion-offthread-compile=off
+
+function foo(n, trigger) {
+  let result = Atomics.isLockFree(n * -1);
+  if (trigger) {
+    assertEq(result, false);
+  }
+}
+
+for (var i = 0; i < 100; i++) {
+  foo(-50, false);
+}
+foo(0, true);
+
+function bar(n, trigger) {
+  let result = Atomics.isLockFree(n * 4);
+  if (trigger) {
+    assertEq(result, false);
+  }
+}
+
+for (var i = 0; i < 100; i++) {
+  bar(1, false);
+}
+bar(0x40000001, true);
diff --git a/js/src/jit-test/tests/ion/recover-string-from-charcode.js b/js/src/jit-test/tests/ion/recover-string-from-charcode.js
new file mode 100644
index 0000000000..be060be8e7
--- /dev/null
+++ b/js/src/jit-test/tests/ion/recover-string-from-charcode.js
@@ -0,0 +1,13 @@
+// |jit-test| --fast-warmup; --ion-offthread-compile=off
+
+function foo(n, trigger) {
+  let result = String.fromCharCode(n * -1);
+  if (trigger) {
+    assertEq(result, "\0");
+  }
+}
+
+for (var i = 0; i < 100; i++) {
+  foo(-50, false);
+}
+foo(0, true);