Merge V8 5.2.361.47  DO NOT MERGE

https://chromium.googlesource.com/v8/v8/+/5.2.361.47

FPIIM-449

Change-Id: Ibec421b85a9b88cb3a432ada642e469fe7e78346
(cherry picked from commit bcf72ee8e3b26f1d0726869c7ddb3921c68b09a8)
diff --git a/test/unittests/wasm/encoder-unittest.cc b/test/unittests/wasm/encoder-unittest.cc
index 740c054..47885e6 100644
--- a/test/unittests/wasm/encoder-unittest.cc
+++ b/test/unittests/wasm/encoder-unittest.cc
@@ -9,6 +9,8 @@
 #include "src/wasm/ast-decoder.h"
 #include "src/wasm/encoder.h"
 
+#include "test/cctest/wasm/test-signatures.h"
+
 namespace v8 {
 namespace internal {
 namespace wasm {
@@ -17,202 +19,10 @@
  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]);
-    }
+    f->EmitGetLocal(index);
   }
 };
 
-
-TEST_F(EncoderTest, Function_Builder_Variable_Indexing) {
-  base::AccountingAllocator allocator;
-  Zone zone(&allocator);
-  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
-  uint16_t f_index = builder->AddFunction();
-  WasmFunctionBuilder* function = builder->FunctionAt(f_index);
-  uint16_t local_f32 = function->AddLocal(kAstF32);
-  uint16_t param_float32 = function->AddParam(kAstF32);
-  uint16_t local_i32 = function->AddLocal(kAstI32);
-  uint16_t local_f64 = function->AddLocal(kAstF64);
-  uint16_t local_i64 = function->AddLocal(kAstI64);
-  uint16_t param_int32 = function->AddParam(kAstI32);
-  uint16_t local_i32_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_i32);
-  function->EmitCode(code, sizeof(code), local_indices, 1);
-  code[1] = static_cast<uint8_t>(local_i32_2);
-  function->EmitCode(code, sizeof(code), local_indices, 1);
-  code[1] = static_cast<uint8_t>(local_i64);
-  function->EmitCode(code, sizeof(code), local_indices, 1);
-  code[1] = static_cast<uint8_t>(local_f32);
-  function->EmitCode(code, sizeof(code), local_indices, 1);
-  code[1] = static_cast<uint8_t>(local_f64);
-  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);
-}
-
-
-TEST_F(EncoderTest, Function_Builder_Indexing_Variable_Width) {
-  base::AccountingAllocator allocator;
-  Zone zone(&allocator);
-  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();
-}
-
-TEST_F(EncoderTest, Function_Builder_Block_Variable_Width) {
-  base::AccountingAllocator allocator;
-  Zone zone(&allocator);
-  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
-  uint16_t f_index = builder->AddFunction();
-  WasmFunctionBuilder* function = builder->FunctionAt(f_index);
-  function->EmitWithVarInt(kExprBlock, 200);
-  for (int i = 0; i < 200; ++i) {
-    function->Emit(kExprNop);
-  }
-
-  WasmFunctionEncoder* f = function->Build(&zone, builder);
-  CHECK_EQ(f->BodySize(), 204);
-}
-
-TEST_F(EncoderTest, Function_Builder_EmitEditableVarIntImmediate) {
-  base::AccountingAllocator allocator;
-  Zone zone(&allocator);
-  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
-  uint16_t f_index = builder->AddFunction();
-  WasmFunctionBuilder* function = builder->FunctionAt(f_index);
-  function->Emit(kExprLoop);
-  uint32_t offset = function->EmitEditableVarIntImmediate();
-  for (int i = 0; i < 200; ++i) {
-    function->Emit(kExprNop);
-  }
-  function->EditVarIntImmediate(offset, 200);
-
-  WasmFunctionEncoder* f = function->Build(&zone, builder);
-  CHECK_EQ(f->BodySize(), 204);
-}
-
-TEST_F(EncoderTest, Function_Builder_EmitEditableVarIntImmediate_Locals) {
-  base::AccountingAllocator allocator;
-  Zone zone(&allocator);
-  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
-  uint16_t f_index = builder->AddFunction();
-  WasmFunctionBuilder* function = builder->FunctionAt(f_index);
-  function->Emit(kExprBlock);
-  uint32_t offset = function->EmitEditableVarIntImmediate();
-  for (int i = 0; i < 200; ++i) {
-    AddLocal(function, kAstI32);
-  }
-  function->EditVarIntImmediate(offset, 200);
-
-  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();
-
-  CHECK_EQ(f->BodySize(), 479);
-  const uint8_t varint200_low = (200 & 0x7f) | 0x80;
-  const uint8_t varint200_high = (200 >> 7) & 0x7f;
-  offset = 0;
-  CHECK_EQ(body[offset++], 1);  // Local decl count.
-  CHECK_EQ(body[offset++], varint200_low);
-  CHECK_EQ(body[offset++], varint200_high);
-  CHECK_EQ(body[offset++], kLocalI32);
-  CHECK_EQ(body[offset++], kExprBlock);
-  CHECK_EQ(body[offset++], varint200_low);
-  CHECK_EQ(body[offset++], varint200_high);
-  // GetLocal with one-byte indices.
-  for (int i = 0; i <= 127; ++i) {
-    CHECK_EQ(body[offset++], kExprGetLocal);
-    CHECK_EQ(body[offset++], i);
-  }
-  // GetLocal with two-byte indices.
-  for (int i = 128; i < 200; ++i) {
-    CHECK_EQ(body[offset++], kExprGetLocal);
-    CHECK_EQ(body[offset++], (i & 0x7f) | 0x80);
-    CHECK_EQ(body[offset++], (i >> 7) & 0x7f);
-  }
-  CHECK_EQ(offset, 479);
-}
-
-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