Merge V8 at 3.9.24.13
Bug: 5688872
Change-Id: Id0aa8d23375030494d3189c31774059c0f5398fc
diff --git a/test/mjsunit/switch.js b/test/mjsunit/switch.js
index 180f994..6a61fe5 100644
--- a/test/mjsunit/switch.js
+++ b/test/mjsunit/switch.js
@@ -25,6 +25,8 @@
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Flags: --allow-natives-syntax
+
function f0() {
switch (0) {
// switch deliberately left empty
@@ -126,6 +128,42 @@
assertEquals(3, f4(2), "fallthrough-switch.2");
assertEquals(5, f4(3), "fallthrough-switch.3");
+function f4_string(tag, x) {
+ switch(tag) {
+ case 'zero':
+ x++;
+ case 'two':
+ x++;
+ }
+ return x;
+}
+
+// Symbols
+assertEquals(2, f4_string('zero', 0), "fallthrough-string-switch.0");
+assertEquals(1, f4_string('one', 1), "fallthrough-string-switch.1");
+assertEquals(3, f4_string('two', 2), "fallthrough-string-switch.2");
+
+// Strings
+assertEquals(2, f4_string('_zero'.slice(1), 0), "fallthrough-string-switch.3");
+assertEquals(1, f4_string('_one'.slice(1), 1), "fallthrough-string-switch.4");
+assertEquals(3, f4_string('_two'.slice(1), 2), "fallthrough-string-switch.5");
+
+// Oddball
+assertEquals(3, f4_string(null, 3), "fallthrough-string-switch.6");
+
+// Test for regression
+function regress_string(value) {
+ var json = 1;
+ switch (typeof value) {
+ case 'object':
+ break;
+
+ default:
+
+ }
+ return json;
+};
+assertEquals(1, regress_string('object'), 'regression-string');
function f5(x) {
switch(x) {
@@ -287,3 +325,138 @@
var verylong = makeVeryLong(verylong_size);
assertEquals(verylong_size * 2 + 1, verylong());
+
+//
+// Test suite below aims to cover all possible combinations of following:
+//
+// clauses | tags | type feedback | optimization
+// =========================================================
+// strings | symbol | all | on
+// smis | string | target | off
+// mixed | oddball | non-target |
+// | smis | none |
+// | heapnum | |
+// =========================================================
+
+// Function-with-switch generator
+var test_id = 0,
+ clause_values = {
+ string: ['abc', 'def', 'ghi', 'jkl'],
+ smi: [1, 2, 3, 4],
+ mixed: ['abc', 1, 'def', 2, 'ghi', 3, 'jkl', 4]
+ };
+
+function switch_gen(clause_type, feedback, optimize) {
+ var values = clause_values[clause_type];
+
+ function opt(fn) {
+ if (feedback === 'all') {
+ values.forEach(fn);
+ } else if (Array.isArray(feedback)) {
+ // Non-target
+ values.filter(function(v) {
+ return feedback.indexOf(v) === -1;
+ }).forEach(fn);
+ } else if (feedback !== undefined) {
+ // Target
+ fn(feedback);
+ } else {
+ // None
+ }
+
+ if (optimize) %OptimizeFunctionOnNextCall(fn);
+
+ return fn;
+ };
+
+ return opt(new Function(
+ 'tag',
+ '"' + (test_id++) + '";' +
+ 'switch(tag) {' +
+ values.map(function(value) {
+ return 'case ' + JSON.stringify(value) + ': return' +
+ JSON.stringify('ok-' + value);
+ }).join(';') +
+ '}'
+ ));
+};
+
+function test_switch(clause_type, test_type, feedback, optimize) {
+ var pairs = [],
+ fn = switch_gen(clause_type, feedback, optimize);
+
+ if (Array.isArray(test_type)) {
+ pairs = test_type.map(function(v) {
+ return {
+ value: v,
+ expected: 'ok-' + v
+ };
+ });
+ } else if (test_type === 'symbols') {
+ pairs = clause_values.string.map(function(v) {
+ return {
+ value: v,
+ expected: clause_type !== 'smi' ? 'ok-' + v : undefined
+ };
+ });
+ } else if (test_type === 'strings') {
+ pairs = clause_values.string.map(function(v) {
+ return {
+ value: ('%%' + v).slice(2),
+ expected: clause_type !== 'smi' ? 'ok-' + v : undefined
+ };
+ });
+ } else if (test_type === 'oddball') {
+ pairs = [
+ { value: null, expected: undefined },
+ { value: NaN, expected: undefined },
+ { value: undefined, expected: undefined }
+ ];
+ } else if (test_type === 'smi') {
+ pairs = clause_values.smi.map(function(v) {
+ return {
+ value: v,
+ expected: clause_type !== 'string' ? 'ok-' + v : undefined
+ };
+ });
+ } else if (test_type === 'heapnum') {
+ pairs = clause_values.smi.map(function(v) {
+ return {
+ value: ((v * 17)/16) - ((v*17)%16/16),
+ expected: clause_type !== 'string' ? 'ok-' + v : undefined
+ };
+ });
+ }
+
+ pairs.forEach(function(pair) {
+ assertEquals(fn(pair.value), pair.expected);
+ });
+};
+
+// test_switch(clause_type, test_type, feedback, optimize);
+
+function test_switches(opt) {
+ var test_types = ['symbols', 'strings', 'oddball', 'smi', 'heapnum'];
+
+ function test(clause_type) {
+ var values = clause_values[clause_type];
+
+ test_types.forEach(function(test_type) {
+ test_switch(clause_type, test_type, 'all', opt);
+ test_switch(clause_type, test_type, 'none', opt);
+
+ // Targeting specific clause feedback
+ values.forEach(function(value) {
+ test_switch(clause_type, test_type, [value], value, opt);
+ test_switch(clause_type, test_type, value, value, opt);
+ });
+ });
+ };
+
+ test('string');
+ test('smi');
+ test('mixed');
+};
+
+test_switches(false);
+test_switches(true);