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Unified Diff: test/cctest/interpreter/test-bytecode-generator.cc

Issue 1618693005: [Interpreter] Add ForOf support. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 11 months ago
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Index: test/cctest/interpreter/test-bytecode-generator.cc
diff --git a/test/cctest/interpreter/test-bytecode-generator.cc b/test/cctest/interpreter/test-bytecode-generator.cc
index b2be0ec90e32fcc022a42cf34e81f8f7f6e179f2..96176a6e48e59780fed8261120edd852da25d7c0 100644
--- a/test/cctest/interpreter/test-bytecode-generator.cc
+++ b/test/cctest/interpreter/test-bytecode-generator.cc
@@ -5600,6 +5600,243 @@ TEST(ForIn) {
}
+TEST(ForOf) {
+ InitializedHandleScope handle_scope;
+ BytecodeGeneratorHelper helper;
+ Zone zone;
+
+ int array_literal_flags =
+ ArrayLiteral::kDisableMementos | ArrayLiteral::kShallowElements;
+ int object_literal_flags =
+ ObjectLiteral::kFastElements | ObjectLiteral::kDisableMementos;
+
+ FeedbackVectorSpec feedback_spec(&zone);
+ FeedbackVectorSlot slot1 = feedback_spec.AddCallICSlot();
+ FeedbackVectorSlot slot2 = feedback_spec.AddKeyedLoadICSlot();
+ FeedbackVectorSlot slot3 = feedback_spec.AddCallICSlot();
+ FeedbackVectorSlot slot4 = feedback_spec.AddLoadICSlot();
+ FeedbackVectorSlot slot5 = feedback_spec.AddLoadICSlot();
+ FeedbackVectorSlot slot6 = feedback_spec.AddLoadICSlot();
+ FeedbackVectorSlot slot7 = feedback_spec.AddStoreICSlot();
+ FeedbackVectorSlot slot8 = feedback_spec.AddLoadICSlot();
+ Handle<i::TypeFeedbackVector> vector =
+ i::NewTypeFeedbackVector(helper.isolate(), &feedback_spec);
+
+ ExpectedSnippet<InstanceType, 8> snippets[] = {
+ {"for (var p of [0, 1, 2]) {}",
+ 7 * kPointerSize,
+ 1,
+ 82,
+ {
+ B(CreateArrayLiteral), U8(0), U8(0), U8(array_literal_flags), //
+ B(Star), R(5), //
+ B(LdaConstant), U8(1), //
+ B(KeyedLoadICSloppy), R(5), U8(vector->GetIndex(slot2)), //
+ B(Star), R(4), //
+ B(Call), R(4), R(5), U8(0), U8(vector->GetIndex(slot1)), //
+ B(Star), R(1), //
+ B(Ldar), R(1), //
+ B(Star), R(6), //
+ B(LoadICSloppy), R(6), U8(2), U8(vector->GetIndex(slot4)), //
+ B(Star), R(5), //
+ B(Call), R(5), R(6), U8(0), U8(vector->GetIndex(slot3)), //
+ B(Star), R(2), //
+ B(Star), R(4), //
+ B(CallRuntime), U16(Runtime::kInlineIsJSReceiver), R(4), U8(1), //
+ B(LogicalNot), //
+ B(JumpIfFalse), U8(11), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), //
+ R(4), U8(1), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(LoadICSloppy), R(4), U8(3), U8(vector->GetIndex(slot5)), //
+ B(JumpIfToBooleanTrue), U8(16), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(LoadICSloppy), R(4), U8(4), U8(vector->GetIndex(slot6)), //
+ B(Star), R(0), //
+ B(Star), R(3), //
+ B(Jump), U8(-58), //
+ B(LdaUndefined), //
+ B(Return), //
+ },
+ 5,
+ {InstanceType::FIXED_ARRAY_TYPE, InstanceType::SYMBOL_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}},
+ {"var x = 'potatoes';\n"
+ "for (var p of x) { return p; }",
+ 8 * kPointerSize,
+ 1,
+ 81,
+ {
+ B(LdaConstant), U8(0), //
+ B(Star), R(3), //
+ B(Star), R(6), //
+ B(LdaConstant), U8(1), //
+ B(KeyedLoadICSloppy), R(6), U8(vector->GetIndex(slot2)), //
+ B(Star), R(5), //
+ B(Call), R(5), R(6), U8(0), U8(vector->GetIndex(slot1)), //
+ B(Star), R(1), //
+ B(Ldar), R(1), //
+ B(Star), R(7), //
+ B(LoadICSloppy), R(7), U8(2), U8(vector->GetIndex(slot4)), //
+ B(Star), R(6), //
+ B(Call), R(6), R(7), U8(0), U8(vector->GetIndex(slot3)), //
+ B(Star), R(2), //
+ B(Star), R(5), //
+ B(CallRuntime), U16(Runtime::kInlineIsJSReceiver), R(5), U8(1), //
+ B(LogicalNot), //
+ B(JumpIfFalse), U8(11), //
+ B(Ldar), R(2), //
+ B(Star), R(5), //
+ B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), //
+ R(5), U8(1), //
+ B(Ldar), R(2), //
+ B(Star), R(5), //
+ B(LoadICSloppy), R(5), U8(3), U8(vector->GetIndex(slot5)), //
+ B(JumpIfToBooleanTrue), U8(15), //
+ B(Ldar), R(2), //
+ B(Star), R(5), //
+ B(LoadICSloppy), R(5), U8(4), U8(vector->GetIndex(slot6)), //
+ B(Star), R(0), //
+ B(Star), R(4), //
+ B(Return), //
+ B(LdaUndefined), //
+ B(Return), //
+ },
+ 5,
+ {InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::SYMBOL_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}},
+ {"for (var x of [10, 20, 30]) {\n"
+ " if (x == 10) continue;\n"
+ " if (x == 20) break;\n"
+ "}",
+ 7 * kPointerSize,
+ 1,
+ 104,
+ {
+ B(CreateArrayLiteral), U8(0), U8(0), U8(array_literal_flags), //
+ B(Star), R(5), //
+ B(LdaConstant), U8(1), //
+ B(KeyedLoadICSloppy), R(5), U8(vector->GetIndex(slot2)), //
+ B(Star), R(4), //
+ B(Call), R(4), R(5), U8(0), U8(vector->GetIndex(slot1)), //
+ B(Star), R(1), //
+ B(Ldar), R(1), //
+ B(Star), R(6), //
+ B(LoadICSloppy), R(6), U8(2), U8(vector->GetIndex(slot4)), //
+ B(Star), R(5), //
+ B(Call), R(5), R(6), U8(0), U8(vector->GetIndex(slot3)), //
+ B(Star), R(2), //
+ B(Star), R(4), //
+ B(CallRuntime), U16(Runtime::kInlineIsJSReceiver), R(4), U8(1), //
+ B(LogicalNot), //
+ B(JumpIfFalse), U8(11), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), //
+ R(4), U8(1), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(LoadICSloppy), R(4), U8(3), U8(vector->GetIndex(slot5)), //
+ B(JumpIfToBooleanTrue), U8(38), //
+ B(Ldar), R(2), //
+ B(Star), R(4), //
+ B(LoadICSloppy), R(4), U8(4), U8(vector->GetIndex(slot6)), //
+ B(Star), R(0), //
+ B(Star), R(3), //
+ B(Star), R(4), //
+ B(LdaSmi8), U8(10), //
+ B(TestEqual), R(4), //
+ B(JumpIfFalse), U8(4), //
+ B(Jump), U8(-66), //
+ B(Ldar), R(3), //
+ B(Star), R(4), //
+ B(LdaSmi8), U8(20), //
+ B(TestEqual), R(4), //
+ B(JumpIfFalse), U8(4), //
+ B(Jump), U8(4), //
+ B(Jump), U8(-80), //
+ B(LdaUndefined), //
+ B(Return), //
+ },
+ 5,
+ {InstanceType::FIXED_ARRAY_TYPE, InstanceType::SYMBOL_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}},
+ {"var x = { 'a': 1, 'b': 2 };\n"
+ "for (x['a'] of [1,2,3]) { return x['a']; }",
+ 6 * kPointerSize,
+ 1,
+ 101,
+ {
+ B(CreateObjectLiteral), U8(0), U8(0), U8(object_literal_flags), //
+ B(Star), R(3), //
+ B(Star), R(2), //
+ B(CreateArrayLiteral), U8(1), U8(1), U8(array_literal_flags), //
+ B(Star), R(4), //
+ B(LdaConstant), U8(2), //
+ B(KeyedLoadICSloppy), R(4), U8(vector->GetIndex(slot2)), //
+ B(Star), R(3), //
+ B(Call), R(3), R(4), U8(0), U8(vector->GetIndex(slot1)), //
+ B(Star), R(0), //
+ B(Ldar), R(0), //
+ B(Star), R(5), //
+ B(LoadICSloppy), R(5), U8(3), U8(vector->GetIndex(slot4)), //
+ B(Star), R(4), //
+ B(Call), R(4), R(5), U8(0), U8(vector->GetIndex(slot3)), //
+ B(Star), R(1), //
+ B(Star), R(3), //
+ B(CallRuntime), U16(Runtime::kInlineIsJSReceiver), R(3), U8(1), //
+ B(LogicalNot), //
+ B(JumpIfFalse), U8(11), //
+ B(Ldar), R(1), //
+ B(Star), R(3), //
+ B(CallRuntime), U16(Runtime::kThrowIteratorResultNotAnObject), //
+ R(3), U8(1), //
+ B(Ldar), R(1), //
+ B(Star), R(3), //
+ B(LoadICSloppy), R(3), U8(4), U8(vector->GetIndex(slot5)), //
+ B(JumpIfToBooleanTrue), U8(27), //
+ B(Ldar), R(2), //
+ B(Star), R(3), //
+ B(Ldar), R(1), //
+ B(Star), R(4), //
+ B(LoadICSloppy), R(4), U8(5), U8(vector->GetIndex(slot6)), //
+ B(StoreICSloppy), R(3), U8(6), U8(vector->GetIndex(slot7)), //
+ B(Ldar), R(2), //
+ B(Star), R(3), //
+ B(LoadICSloppy), R(3), U8(6), U8(vector->GetIndex(slot8)), //
+ B(Return), //
+ B(LdaUndefined), //
+ B(Return), //
+ },
+ 7,
+ {InstanceType::FIXED_ARRAY_TYPE,
+ InstanceType::FIXED_ARRAY_TYPE,
+ InstanceType::SYMBOL_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE,
+ InstanceType::ONE_BYTE_INTERNALIZED_STRING_TYPE}},
+ };
+
+ for (size_t i = 0; i < arraysize(snippets); i++) {
+ Handle<BytecodeArray> bytecode_array =
+ helper.MakeBytecodeForFunctionBody(snippets[i].code_snippet);
+ CheckBytecodeArrayEqual(snippets[i], bytecode_array);
+ }
+}
+
+
TEST(Conditional) {
InitializedHandleScope handle_scope;
BytecodeGeneratorHelper helper;
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