Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/unittests/wasm/encoder-unittest.cc b/test/unittests/wasm/encoder-unittest.cc
new file mode 100644
index 0000000..156cf6b
--- /dev/null
+++ b/test/unittests/wasm/encoder-unittest.cc
@@ -0,0 +1,151 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "test/unittests/test-utils.h"
+
+#include "src/v8.h"
+
+#include "src/wasm/ast-decoder.h"
+#include "src/wasm/encoder.h"
+
+namespace v8 {
+namespace internal {
+namespace wasm {
+
+class EncoderTest : public TestWithZone {
+ protected:
+ void AddLocal(WasmFunctionBuilder* f, LocalType type) {
+ uint16_t index = f->AddLocal(type);
+ const std::vector<uint8_t>& out_index = UnsignedLEB128From(index);
+ std::vector<uint8_t> code;
+ code.push_back(kExprGetLocal);
+ for (size_t i = 0; i < out_index.size(); i++) {
+ code.push_back(out_index.at(i));
+ }
+ uint32_t local_indices[] = {1};
+ f->EmitCode(&code[0], static_cast<uint32_t>(code.size()), local_indices, 1);
+ }
+
+ void CheckReadValue(uint8_t* leb_value, uint32_t expected_result,
+ int expected_length,
+ ReadUnsignedLEB128ErrorCode expected_error_code) {
+ int length;
+ uint32_t result;
+ ReadUnsignedLEB128ErrorCode error_code =
+ ReadUnsignedLEB128Operand(leb_value, leb_value + 5, &length, &result);
+ CHECK_EQ(error_code, expected_error_code);
+ if (error_code == 0) {
+ CHECK_EQ(result, expected_result);
+ CHECK_EQ(length, expected_length);
+ }
+ }
+
+ void CheckWriteValue(uint32_t input, int length, uint8_t* vals) {
+ const std::vector<uint8_t> result = UnsignedLEB128From(input);
+ CHECK_EQ(result.size(), length);
+ for (int i = 0; i < length; i++) {
+ CHECK_EQ(result.at(i), vals[i]);
+ }
+ }
+};
+
+
+TEST_F(EncoderTest, Function_Builder_Variable_Indexing) {
+ Zone zone;
+ WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
+ uint16_t f_index = builder->AddFunction();
+ WasmFunctionBuilder* function = builder->FunctionAt(f_index);
+ uint16_t local_float32 = function->AddLocal(kAstF32);
+ uint16_t param_float32 = function->AddParam(kAstF32);
+ uint16_t local_int32 = function->AddLocal(kAstI32);
+ uint16_t local_float64 = function->AddLocal(kAstF64);
+ uint16_t local_int64 = function->AddLocal(kAstI64);
+ uint16_t param_int32 = function->AddParam(kAstI32);
+ uint16_t local_int32_2 = function->AddLocal(kAstI32);
+
+ byte code[] = {kExprGetLocal, static_cast<uint8_t>(param_float32)};
+ uint32_t local_indices[] = {1};
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(param_int32);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(local_int32);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(local_int32_2);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(local_int64);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(local_float32);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+ code[1] = static_cast<uint8_t>(local_float64);
+ function->EmitCode(code, sizeof(code), local_indices, 1);
+
+ WasmFunctionEncoder* f = function->Build(&zone, builder);
+ ZoneVector<uint8_t> buffer_vector(f->HeaderSize() + f->BodySize(), &zone);
+ byte* buffer = &buffer_vector[0];
+ byte* header = buffer;
+ byte* body = buffer + f->HeaderSize();
+ f->Serialize(buffer, &header, &body);
+ for (size_t i = 0; i < 7; i++) {
+ CHECK_EQ(i, static_cast<size_t>(*(buffer + 2 * i + f->HeaderSize() + 1)));
+ }
+}
+
+
+TEST_F(EncoderTest, Function_Builder_Indexing_Variable_Width) {
+ Zone zone;
+ WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
+ uint16_t f_index = builder->AddFunction();
+ WasmFunctionBuilder* function = builder->FunctionAt(f_index);
+ for (size_t i = 0; i < 128; i++) {
+ AddLocal(function, kAstF32);
+ }
+ AddLocal(function, kAstI32);
+
+ WasmFunctionEncoder* f = function->Build(&zone, builder);
+ ZoneVector<uint8_t> buffer_vector(f->HeaderSize() + f->BodySize(), &zone);
+ byte* buffer = &buffer_vector[0];
+ byte* header = buffer;
+ byte* body = buffer + f->HeaderSize();
+ f->Serialize(buffer, &header, &body);
+ body = buffer + f->HeaderSize();
+ for (size_t i = 0; i < 127; i++) {
+ CHECK_EQ(kExprGetLocal, static_cast<size_t>(*(body + 2 * i)));
+ CHECK_EQ(i + 1, static_cast<size_t>(*(body + 2 * i + 1)));
+ }
+ CHECK_EQ(kExprGetLocal, static_cast<size_t>(*(body + 2 * 127)));
+ CHECK_EQ(0x80, static_cast<size_t>(*(body + 2 * 127 + 1)));
+ CHECK_EQ(0x01, static_cast<size_t>(*(body + 2 * 127 + 2)));
+ CHECK_EQ(kExprGetLocal, static_cast<size_t>(*(body + 2 * 127 + 3)));
+ CHECK_EQ(0x00, static_cast<size_t>(*(body + 2 * 127 + 4)));
+}
+
+
+TEST_F(EncoderTest, LEB_Functions) {
+ byte leb_value[5] = {0, 0, 0, 0, 0};
+ CheckReadValue(leb_value, 0, 1, kNoError);
+ CheckWriteValue(0, 1, leb_value);
+ leb_value[0] = 23;
+ CheckReadValue(leb_value, 23, 1, kNoError);
+ CheckWriteValue(23, 1, leb_value);
+ leb_value[0] = 0x80;
+ leb_value[1] = 0x01;
+ CheckReadValue(leb_value, 128, 2, kNoError);
+ CheckWriteValue(128, 2, leb_value);
+ leb_value[0] = 0x80;
+ leb_value[1] = 0x80;
+ leb_value[2] = 0x80;
+ leb_value[3] = 0x80;
+ leb_value[4] = 0x01;
+ CheckReadValue(leb_value, 0x10000000, 5, kNoError);
+ CheckWriteValue(0x10000000, 5, leb_value);
+ leb_value[0] = 0x80;
+ leb_value[1] = 0x80;
+ leb_value[2] = 0x80;
+ leb_value[3] = 0x80;
+ leb_value[4] = 0x80;
+ CheckReadValue(leb_value, -1, -1, kInvalidLEB128);
+}
+} // namespace wasm
+} // namespace internal
+} // namespace v8