[wasm] Rename ast-decoder.* to function-body-decoder.*

test/unittests/wasm/ast-decoder-unittest.cc

-// 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 "test/common/wasm/test-signatures.h"
-
-#include "src/objects.h"
-
-#include "src/wasm/ast-decoder.h"
-#include "src/wasm/signature-map.h"
-#include "src/wasm/wasm-macro-gen.h"
-#include "src/wasm/wasm-module.h"
-#include "src/wasm/wasm-opcodes.h"
-
-namespace v8 {
-namespace internal {
-namespace wasm {
-
-#define B1(a) WASM_BLOCK(a)
-#define B2(a, b) WASM_BLOCK(a, b)
-#define B3(a, b, c) WASM_BLOCK(a, b, c)
-
-#define WASM_IF_OP kExprIf, kLocalVoid
-#define WASM_LOOP_OP kExprLoop, kLocalVoid
-
-static const byte kCodeGetLocal0[] = {kExprGetLocal, 0};
-static const byte kCodeGetLocal1[] = {kExprGetLocal, 1};
-static const byte kCodeSetLocal0[] = {WASM_SET_LOCAL(0, WASM_ZERO)};
-static const byte kCodeTeeLocal0[] = {WASM_TEE_LOCAL(0, WASM_ZERO)};
-
-static const LocalType kLocalTypes[] = {kAstI32, kAstI64, kAstF32, kAstF64};
-static const MachineType machineTypes[] = {
-    MachineType::Int8(),   MachineType::Uint8(),  MachineType::Int16(),
-    MachineType::Uint16(), MachineType::Int32(),  MachineType::Uint32(),
-    MachineType::Int64(),  MachineType::Uint64(), MachineType::Float32(),
-    MachineType::Float64()};
-
-static const WasmOpcode kInt32BinopOpcodes[] = {
-    kExprI32Add,  kExprI32Sub,  kExprI32Mul,  kExprI32DivS, kExprI32DivU,
-    kExprI32RemS, kExprI32RemU, kExprI32And,  kExprI32Ior,  kExprI32Xor,
-    kExprI32Shl,  kExprI32ShrU, kExprI32ShrS, kExprI32Eq,   kExprI32LtS,
-    kExprI32LeS,  kExprI32LtU,  kExprI32LeU};
-
-#define WASM_BRV_IF_ZERO(depth, val) \
-  val, WASM_ZERO, kExprBrIf, static_cast<byte>(depth)
-
-#define EXPECT_VERIFIES_C(sig, x) \
-  Verify(kSuccess, sigs.sig(), x, x + arraysize(x))
-
-#define EXPECT_FAILURE_C(sig, x) Verify(kError, sigs.sig(), x, x + arraysize(x))
-
-#define EXPECT_VERIFIES_SC(sig, x) Verify(kSuccess, sig, x, x + arraysize(x))
-
-#define EXPECT_FAILURE_SC(sig, x) Verify(kError, sig, x, x + arraysize(x))
-
-#define EXPECT_VERIFIES_S(env, ...)                      \
-  do {                                                   \
-    static byte code[] = {__VA_ARGS__};                  \
-    Verify(kSuccess, env, code, code + arraysize(code)); \
-  } while (false)
-
-#define EXPECT_FAILURE_S(env, ...)                     \
-  do {                                                 \
-    static byte code[] = {__VA_ARGS__};                \
-    Verify(kError, env, code, code + arraysize(code)); \
-  } while (false)
-
-#define EXPECT_VERIFIES(sig, ...)                            \
-  do {                                                       \
-    static const byte code[] = {__VA_ARGS__};                \
-    Verify(kSuccess, sigs.sig(), code, code + sizeof(code)); \
-  } while (false)
-
-#define EXPECT_FAILURE(sig, ...)                           \
-  do {                                                     \
-    static const byte code[] = {__VA_ARGS__};              \
-    Verify(kError, sigs.sig(), code, code + sizeof(code)); \
-  } while (false)
-
-static bool old_eh_flag;
-
-class AstDecoderTest : public TestWithZone {
- public:
-  typedef std::pair<uint32_t, LocalType> LocalsDecl;
-
-  AstDecoderTest() : module(nullptr), local_decls(zone()) {}
-
-  static void SetUpTestCase() { old_eh_flag = FLAG_wasm_eh_prototype; }
-
-  static void TearDownTestCase() {
-    // Reset the wasm_eh_prototype flag
-    FLAG_wasm_eh_prototype = old_eh_flag;
-  }
-
-  TestSignatures sigs;
-  ModuleEnv* module;
-  LocalDeclEncoder local_decls;
-
-  void AddLocals(LocalType type, uint32_t count) {
-    local_decls.AddLocals(count, type);
-  }
-
-  // Prepends local variable declarations and renders nice error messages for
-  // verification failures.
-  void Verify(ErrorCode expected, FunctionSig* sig, const byte* start,
-              const byte* end) {
-    local_decls.Prepend(zone(), &start, &end);
-    // Verify the code.
-    DecodeResult result =
-        VerifyWasmCode(zone()->allocator(), module, sig, start, end);
-
-    if (result.error_code != expected) {
-      ptrdiff_t pc = result.error_pc - result.start;
-      ptrdiff_t pt = result.error_pt - result.start;
-      std::ostringstream str;
-      if (expected == kSuccess) {
-        str << "Verification failed: " << result.error_code << " pc = +" << pc;
-        if (result.error_pt) str << ", pt = +" << pt;
-        str << ", msg = " << result.error_msg.get();
-      } else {
-        str << "Verification expected: " << expected << ", but got "
-            << result.error_code;
-        if (result.error_code != kSuccess) {
-          str << " pc = +" << pc;
-          if (result.error_pt) str << ", pt = +" << pt;
-        }
-      }
-      EXPECT_TRUE(false) << str.str().c_str();
-    }
-  }
-
-  void TestBinop(WasmOpcode opcode, FunctionSig* success) {
-    // op(local[0], local[1])
-    byte code[] = {WASM_BINOP(opcode, WASM_GET_LOCAL(0), WASM_GET_LOCAL(1))};
-    EXPECT_VERIFIES_SC(success, code);
-
-    // Try all combinations of return and parameter types.
-    for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-      for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-        for (size_t k = 0; k < arraysize(kLocalTypes); k++) {
-          LocalType types[] = {kLocalTypes[i], kLocalTypes[j], kLocalTypes[k]};
-          if (types[0] != success->GetReturn(0) ||
-              types[1] != success->GetParam(0) ||
-              types[2] != success->GetParam(1)) {
-            // Test signature mismatch.
-            FunctionSig sig(1, 2, types);
-            EXPECT_FAILURE_SC(&sig, code);
-          }
-        }
-      }
-    }
-  }
-
-  void TestUnop(WasmOpcode opcode, FunctionSig* success) {
-    TestUnop(opcode, success->GetReturn(), success->GetParam(0));
-  }
-
-  void TestUnop(WasmOpcode opcode, LocalType ret_type, LocalType param_type) {
-    // Return(op(local[0]))
-    byte code[] = {WASM_UNOP(opcode, WASM_GET_LOCAL(0))};
-    {
-      LocalType types[] = {ret_type, param_type};
-      FunctionSig sig(1, 1, types);
-      EXPECT_VERIFIES_SC(&sig, code);
-    }
-
-    // Try all combinations of return and parameter types.
-    for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-      for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-        LocalType types[] = {kLocalTypes[i], kLocalTypes[j]};
-        if (types[0] != ret_type || types[1] != param_type) {
-          // Test signature mismatch.
-          FunctionSig sig(1, 1, types);
-          EXPECT_FAILURE_SC(&sig, code);
-        }
-      }
-    }
-  }
-};
-
-TEST_F(AstDecoderTest, Int8Const) {
-  byte code[] = {kExprI8Const, 0};
-  for (int i = -128; i < 128; i++) {
-    code[1] = static_cast<byte>(i);
-    EXPECT_VERIFIES_C(i_i, code);
-  }
-}
-
-TEST_F(AstDecoderTest, EmptyFunction) {
-  byte code[] = {0};
-  Verify(kSuccess, sigs.v_v(), code, code);
-  Verify(kError, sigs.i_i(), code, code);
-}
-
-TEST_F(AstDecoderTest, IncompleteIf1) {
-  byte code[] = {kExprIf};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, Int8Const_fallthru) {
-  EXPECT_VERIFIES(i_i, WASM_I32V_1(0));
-}
-
-TEST_F(AstDecoderTest, Int8Const_fallthru2) {
-  EXPECT_FAILURE(i_i, WASM_I32V_1(0), WASM_I32V_1(1));
-}
-
-TEST_F(AstDecoderTest, Int32Const) {
-  const int kInc = 4498211;
-  for (int32_t i = kMinInt; i < kMaxInt - kInc; i = i + kInc) {
-    // TODO(binji): expand test for other sized int32s; 1 through 5 bytes.
-    byte code[] = {WASM_I32V(i)};
-    EXPECT_VERIFIES_C(i_i, code);
-  }
-}
-
-TEST_F(AstDecoderTest, Int64Const) {
-  const int kInc = 4498211;
-  for (int32_t i = kMinInt; i < kMaxInt - kInc; i = i + kInc) {
-    byte code[] = {WASM_I64V((static_cast<int64_t>(i) << 32) | i)};
-    EXPECT_VERIFIES_C(l_l, code);
-  }
-}
-
-TEST_F(AstDecoderTest, Float32Const) {
-  byte code[] = {kExprF32Const, 0, 0, 0, 0};
-  float* ptr = reinterpret_cast<float*>(code + 1);
-  for (int i = 0; i < 30; i++) {
-    WriteLittleEndianValue<float>(ptr, i * -7.75f);
-    EXPECT_VERIFIES_C(f_ff, code);
-  }
-}
-
-TEST_F(AstDecoderTest, Float64Const) {
-  byte code[] = {kExprF64Const, 0, 0, 0, 0, 0, 0, 0, 0};
-  double* ptr = reinterpret_cast<double*>(code + 1);
-  for (int i = 0; i < 30; i++) {
-    WriteLittleEndianValue<double>(ptr, i * 33.45);
-    EXPECT_VERIFIES_C(d_dd, code);
-  }
-}
-
-TEST_F(AstDecoderTest, Int32Const_off_end) {
-  byte code[] = {kExprI32Const, 0xaa, 0xbb, 0xcc, 0x44};
-
-  for (int size = 1; size <= 4; size++) {
-    Verify(kError, sigs.i_i(), code, code + size);
-  }
-}
-
-TEST_F(AstDecoderTest, GetLocal0_param) {
-  EXPECT_VERIFIES_C(i_i, kCodeGetLocal0);
-}
-
-TEST_F(AstDecoderTest, GetLocal0_local) {
-  AddLocals(kAstI32, 1);
-  EXPECT_VERIFIES_C(i_v, kCodeGetLocal0);
-}
-
-TEST_F(AstDecoderTest, TooManyLocals) {
-  AddLocals(kAstI32, 4034986500);
-  EXPECT_FAILURE_C(i_v, kCodeGetLocal0);
-}
-
-TEST_F(AstDecoderTest, GetLocal0_param_n) {
-  FunctionSig* array[] = {sigs.i_i(), sigs.i_ii(), sigs.i_iii()};
-
-  for (size_t i = 0; i < arraysize(array); i++) {
-    EXPECT_VERIFIES_SC(array[i], kCodeGetLocal0);
-  }
-}
-
-TEST_F(AstDecoderTest, GetLocalN_local) {
-  for (byte i = 1; i < 8; i++) {
-    AddLocals(kAstI32, 1);
-    for (byte j = 0; j < i; j++) {
-      byte code[] = {kExprGetLocal, j};
-      EXPECT_VERIFIES_C(i_v, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, GetLocal0_fail_no_params) {
-  EXPECT_FAILURE_C(i_v, kCodeGetLocal0);
-}
-
-TEST_F(AstDecoderTest, GetLocal1_fail_no_locals) {
-  EXPECT_FAILURE_C(i_i, kCodeGetLocal1);
-}
-
-TEST_F(AstDecoderTest, GetLocal_off_end) {
-  static const byte code[] = {kExprGetLocal};
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, NumLocalBelowLimit) {
-  AddLocals(kAstI32, kMaxNumWasmLocals - 1);
-  EXPECT_VERIFIES(v_v, WASM_NOP);
-}
-
-TEST_F(AstDecoderTest, NumLocalAtLimit) {
-  AddLocals(kAstI32, kMaxNumWasmLocals);
-  EXPECT_VERIFIES(v_v, WASM_NOP);
-}
-
-TEST_F(AstDecoderTest, NumLocalAboveLimit) {
-  AddLocals(kAstI32, kMaxNumWasmLocals + 1);
-  EXPECT_FAILURE(v_v, WASM_NOP);
-}
-
-TEST_F(AstDecoderTest, GetLocal_varint) {
-  const int kMaxLocals = kMaxNumWasmLocals - 1;
-  AddLocals(kAstI32, kMaxLocals);
-
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_1(66));
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_2(7777));
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_3(8888));
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_4(9999));
-
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_5(kMaxLocals - 1));
-
-  EXPECT_FAILURE(i_i, kExprGetLocal, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF);
-
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_4(kMaxLocals - 1));
-  EXPECT_VERIFIES(i_i, kExprGetLocal, U32V_4(kMaxLocals));
-  EXPECT_FAILURE(i_i, kExprGetLocal, U32V_4(kMaxLocals + 1));
-
-  EXPECT_FAILURE(i_v, kExprGetLocal, U32V_4(kMaxLocals));
-  EXPECT_FAILURE(i_v, kExprGetLocal, U32V_4(kMaxLocals + 1));
-}
-
-TEST_F(AstDecoderTest, GetLocal_toomany) {
-  AddLocals(kAstI32, kMaxNumWasmLocals - 100);
-  AddLocals(kAstI32, 100);
-
-  EXPECT_VERIFIES(i_v, kExprGetLocal, U32V_1(66));
-  EXPECT_FAILURE(i_i, kExprGetLocal, U32V_1(66));
-}
-
-TEST_F(AstDecoderTest, Binops_off_end) {
-  byte code1[] = {0};  // [opcode]
-  for (size_t i = 0; i < arraysize(kInt32BinopOpcodes); i++) {
-    code1[0] = kInt32BinopOpcodes[i];
-    EXPECT_FAILURE_C(i_i, code1);
-  }
-
-  byte code3[] = {kExprGetLocal, 0, 0};  // [expr] [opcode]
-  for (size_t i = 0; i < arraysize(kInt32BinopOpcodes); i++) {
-    code3[2] = kInt32BinopOpcodes[i];
-    EXPECT_FAILURE_C(i_i, code3);
-  }
-
-  byte code4[] = {kExprGetLocal, 0, 0, 0};  // [expr] [opcode] [opcode]
-  for (size_t i = 0; i < arraysize(kInt32BinopOpcodes); i++) {
-    code4[2] = kInt32BinopOpcodes[i];
-    code4[3] = kInt32BinopOpcodes[i];
-    EXPECT_FAILURE_C(i_i, code4);
-  }
-}
-
-TEST_F(AstDecoderTest, BinopsAcrossBlock1) {
-  static const byte code[] = {WASM_ZERO, kExprBlock, WASM_ZERO, kExprI32Add,
-                              kExprEnd};
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, BinopsAcrossBlock2) {
-  static const byte code[] = {WASM_ZERO, WASM_ZERO, kExprBlock, kExprI32Add,
-                              kExprEnd};
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, BinopsAcrossBlock3) {
-  static const byte code[] = {WASM_ZERO, WASM_ZERO,   kExprIf, kExprI32Add,
-                              kExprElse, kExprI32Add, kExprEnd};
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, Nop) {
-  static const byte code[] = {kExprNop};
-  EXPECT_VERIFIES_C(v_v, code);
-}
-
-TEST_F(AstDecoderTest, SetLocal0_void) {
-  EXPECT_FAILURE(i_i, WASM_SET_LOCAL(0, WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, SetLocal0_param) {
-  EXPECT_FAILURE_C(i_i, kCodeSetLocal0);
-  EXPECT_FAILURE_C(f_ff, kCodeSetLocal0);
-  EXPECT_FAILURE_C(d_dd, kCodeSetLocal0);
-}
-
-TEST_F(AstDecoderTest, TeeLocal0_param) {
-  EXPECT_VERIFIES_C(i_i, kCodeTeeLocal0);
-  EXPECT_FAILURE_C(f_ff, kCodeTeeLocal0);
-  EXPECT_FAILURE_C(d_dd, kCodeTeeLocal0);
-}
-
-TEST_F(AstDecoderTest, SetLocal0_local) {
-  EXPECT_FAILURE_C(i_v, kCodeSetLocal0);
-  EXPECT_FAILURE_C(v_v, kCodeSetLocal0);
-  AddLocals(kAstI32, 1);
-  EXPECT_FAILURE_C(i_v, kCodeSetLocal0);
-  EXPECT_VERIFIES_C(v_v, kCodeSetLocal0);
-}
-
-TEST_F(AstDecoderTest, TeeLocal0_local) {
-  EXPECT_FAILURE_C(i_v, kCodeTeeLocal0);
-  AddLocals(kAstI32, 1);
-  EXPECT_VERIFIES_C(i_v, kCodeTeeLocal0);
-}
-
-TEST_F(AstDecoderTest, TeeLocalN_local) {
-  for (byte i = 1; i < 8; i++) {
-    AddLocals(kAstI32, 1);
-    for (byte j = 0; j < i; j++) {
-      EXPECT_FAILURE(v_v, WASM_TEE_LOCAL(j, WASM_I8(i)));
-      EXPECT_VERIFIES(i_i, WASM_TEE_LOCAL(j, WASM_I8(i)));
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BlockN) {
-  const int kMaxSize = 200;
-  byte buffer[kMaxSize + 3];
-
-  for (int i = 0; i <= kMaxSize; i++) {
-    memset(buffer, kExprNop, sizeof(buffer));
-    buffer[0] = kExprBlock;
-    buffer[1] = kLocalVoid;
-    buffer[i + 2] = kExprEnd;
-    Verify(kSuccess, sigs.v_i(), buffer, buffer + i + 3);
-  }
-}
-
-#define WASM_EMPTY_BLOCK kExprBlock, kLocalVoid, kExprEnd
-
-TEST_F(AstDecoderTest, Block0) {
-  static const byte code[] = {WASM_EMPTY_BLOCK};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, Block0_fallthru1) {
-  static const byte code[] = {WASM_BLOCK(WASM_EMPTY_BLOCK)};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, Block0Block0) {
-  static const byte code[] = {WASM_EMPTY_BLOCK, WASM_EMPTY_BLOCK};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, Block0_end) {
-  EXPECT_VERIFIES(v_v, WASM_EMPTY_BLOCK, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, Block0_end_end) {
-  EXPECT_FAILURE(v_v, WASM_EMPTY_BLOCK, kExprEnd, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, Block1) {
-  byte code[] = {WASM_BLOCK_I(WASM_GET_LOCAL(0))};
-  EXPECT_VERIFIES_C(i_i, code);
-  EXPECT_FAILURE_C(v_i, code);
-  EXPECT_FAILURE_C(d_dd, code);
-  EXPECT_FAILURE_C(i_f, code);
-  EXPECT_FAILURE_C(i_d, code);
-}
-
-TEST_F(AstDecoderTest, Block1_i) {
-  byte code[] = {WASM_BLOCK_I(WASM_ZERO)};
-  EXPECT_VERIFIES_C(i_i, code);
-  EXPECT_FAILURE_C(f_ff, code);
-  EXPECT_FAILURE_C(d_dd, code);
-  EXPECT_FAILURE_C(l_ll, code);
-}
-
-TEST_F(AstDecoderTest, Block1_f) {
-  byte code[] = {WASM_BLOCK_F(WASM_F32(0))};
-  EXPECT_FAILURE_C(i_i, code);
-  EXPECT_VERIFIES_C(f_ff, code);
-  EXPECT_FAILURE_C(d_dd, code);
-  EXPECT_FAILURE_C(l_ll, code);
-}
-
-TEST_F(AstDecoderTest, Block1_continue) {
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_BR(0)));
-}
-
-TEST_F(AstDecoderTest, Block1_br) {
-  EXPECT_VERIFIES(v_v, B1(WASM_BR(0)));
-  EXPECT_VERIFIES(v_v, B1(WASM_BR(1)));
-  EXPECT_FAILURE(v_v, B1(WASM_BR(2)));
-}
-
-TEST_F(AstDecoderTest, Block2_br) {
-  EXPECT_VERIFIES(v_v, B2(WASM_NOP, WASM_BR(0)));
-  EXPECT_VERIFIES(v_v, B2(WASM_BR(0), WASM_NOP));
-  EXPECT_VERIFIES(v_v, B2(WASM_BR(0), WASM_BR(0)));
-}
-
-TEST_F(AstDecoderTest, Block2) {
-  EXPECT_FAILURE(i_i, WASM_BLOCK(WASM_NOP, WASM_NOP));
-  EXPECT_FAILURE(i_i, WASM_BLOCK_I(WASM_NOP, WASM_NOP));
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_NOP, WASM_ZERO));
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_ZERO, WASM_NOP));
-  EXPECT_FAILURE(i_i, WASM_BLOCK_I(WASM_ZERO, WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, Block2b) {
-  byte code[] = {WASM_BLOCK_I(WASM_SET_LOCAL(0, WASM_ZERO), WASM_ZERO)};
-  EXPECT_VERIFIES_C(i_i, code);
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(f_ff, code);
-}
-
-TEST_F(AstDecoderTest, Block2_fallthru) {
-  EXPECT_VERIFIES(
-      i_i, B2(WASM_SET_LOCAL(0, WASM_ZERO), WASM_SET_LOCAL(0, WASM_ZERO)),
-      WASM_I8(23));
-}
-
-TEST_F(AstDecoderTest, Block3) {
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_SET_LOCAL(0, WASM_ZERO),
-                                    WASM_SET_LOCAL(0, WASM_ZERO), WASM_I8(11)));
-}
-
-TEST_F(AstDecoderTest, Block5) {
-  EXPECT_FAILURE(v_i, WASM_BLOCK(WASM_ZERO));
-
-  EXPECT_FAILURE(v_i, WASM_BLOCK(WASM_ZERO, WASM_ZERO));
-
-  EXPECT_FAILURE(v_i, WASM_BLOCK(WASM_ZERO, WASM_ZERO, WASM_ZERO));
-
-  EXPECT_FAILURE(v_i, WASM_BLOCK(WASM_ZERO, WASM_ZERO, WASM_ZERO, WASM_ZERO));
-
-  EXPECT_FAILURE(
-      v_i, WASM_BLOCK(WASM_ZERO, WASM_ZERO, WASM_ZERO, WASM_ZERO, WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, BlockType) {
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(l_l, WASM_BLOCK_L(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(f_f, WASM_BLOCK_F(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(d_d, WASM_BLOCK_D(WASM_GET_LOCAL(0)));
-}
-
-TEST_F(AstDecoderTest, BlockType_fail) {
-  EXPECT_FAILURE(i_i, WASM_BLOCK_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(i_i, WASM_BLOCK_F(WASM_F32(0.0)));
-  EXPECT_FAILURE(i_i, WASM_BLOCK_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(l_l, WASM_BLOCK_I(WASM_ZERO));
-  EXPECT_FAILURE(l_l, WASM_BLOCK_F(WASM_F32(0.0)));
-  EXPECT_FAILURE(l_l, WASM_BLOCK_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(f_ff, WASM_BLOCK_I(WASM_ZERO));
-  EXPECT_FAILURE(f_ff, WASM_BLOCK_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(f_ff, WASM_BLOCK_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(d_dd, WASM_BLOCK_I(WASM_ZERO));
-  EXPECT_FAILURE(d_dd, WASM_BLOCK_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(d_dd, WASM_BLOCK_F(WASM_F32(0.0)));
-}
-
-TEST_F(AstDecoderTest, BlockF32) {
-  static const byte code[] = {WASM_BLOCK_F(kExprF32Const, 0, 0, 0, 0)};
-  EXPECT_VERIFIES_C(f_ff, code);
-  EXPECT_FAILURE_C(i_i, code);
-  EXPECT_FAILURE_C(d_dd, code);
-}
-
-TEST_F(AstDecoderTest, BlockN_off_end) {
-  byte code[] = {WASM_BLOCK(kExprNop, kExprNop, kExprNop, kExprNop)};
-  EXPECT_VERIFIES_C(v_v, code);
-  for (size_t i = 1; i < arraysize(code); i++) {
-    Verify(kError, sigs.v_v(), code, code + i);
-  }
-}
-
-TEST_F(AstDecoderTest, Block2_continue) {
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_NOP, WASM_BR(0)));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_NOP, WASM_BR(1)));
-  EXPECT_FAILURE(v_v, WASM_LOOP(WASM_NOP, WASM_BR(2)));
-}
-
-TEST_F(AstDecoderTest, Block3_continue) {
-  EXPECT_VERIFIES(v_v, B1(WASM_LOOP(WASM_NOP, WASM_BR(0))));
-  EXPECT_VERIFIES(v_v, B1(WASM_LOOP(WASM_NOP, WASM_BR(1))));
-  EXPECT_VERIFIES(v_v, B1(WASM_LOOP(WASM_NOP, WASM_BR(2))));
-  EXPECT_FAILURE(v_v, B1(WASM_LOOP(WASM_NOP, WASM_BR(3))));
-}
-
-TEST_F(AstDecoderTest, NestedBlock_return) {
-  EXPECT_VERIFIES(i_i, B1(B1(WASM_RETURN1(WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, BlockBrBinop) {
-  EXPECT_VERIFIES(
-      i_i, WASM_I32_AND(WASM_BLOCK_I(WASM_BRV(0, WASM_I8(1))), WASM_I8(2)));
-}
-
-TEST_F(AstDecoderTest, If_empty1) {
-  EXPECT_VERIFIES(v_v, WASM_ZERO, WASM_IF_OP, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, If_empty2) {
-  EXPECT_VERIFIES(v_v, WASM_ZERO, WASM_IF_OP, kExprElse, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, If_empty3) {
-  EXPECT_VERIFIES(v_v, WASM_ZERO, WASM_IF_OP, WASM_NOP, kExprElse, kExprEnd);
-  EXPECT_FAILURE(v_v, WASM_ZERO, WASM_IF_OP, WASM_ZERO, kExprElse, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, If_empty4) {
-  EXPECT_VERIFIES(v_v, WASM_ZERO, WASM_IF_OP, kExprElse, WASM_NOP, kExprEnd);
-  EXPECT_FAILURE(v_v, WASM_ZERO, WASM_IF_OP, kExprElse, WASM_ZERO, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, If_empty_stack) {
-  byte code[] = {kExprIf};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, If_incomplete1) {
-  byte code[] = {kExprI8Const, 0, kExprIf};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, If_incomplete2) {
-  byte code[] = {kExprI8Const, 0, kExprIf, kExprNop};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, If_else_else) {
-  byte code[] = {kExprI8Const, 0, WASM_IF_OP, kExprElse, kExprElse, kExprEnd};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, IfEmpty) {
-  EXPECT_VERIFIES(v_i, kExprGetLocal, 0, WASM_IF_OP, kExprEnd);
-}
-
-TEST_F(AstDecoderTest, IfSet) {
-  EXPECT_VERIFIES(v_i,
-                  WASM_IF(WASM_GET_LOCAL(0), WASM_SET_LOCAL(0, WASM_ZERO)));
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0),
-                                    WASM_SET_LOCAL(0, WASM_ZERO), WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfElseEmpty) {
-  EXPECT_VERIFIES(v_i, WASM_GET_LOCAL(0), WASM_IF_OP, kExprElse, kExprEnd);
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfElseUnreachable1) {
-  EXPECT_VERIFIES(i_i, WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_UNREACHABLE,
-                                      WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(i_i, WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0),
-                                      WASM_UNREACHABLE));
-}
-
-TEST_F(AstDecoderTest, IfElseUnreachable2) {
-  static const byte code[] = {
-      WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_UNREACHABLE, WASM_GET_LOCAL(0))};
-
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType types[] = {kAstI32, kLocalTypes[i]};
-    FunctionSig sig(1, 1, types);
-
-    if (kLocalTypes[i] == kAstI32) {
-      EXPECT_VERIFIES_SC(&sig, code);
-    } else {
-      EXPECT_FAILURE_SC(&sig, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, IfBreak) {
-  EXPECT_VERIFIES(v_i, WASM_IF(WASM_GET_LOCAL(0), WASM_BR(0)));
-  EXPECT_VERIFIES(v_i, WASM_IF(WASM_GET_LOCAL(0), WASM_BR(1)));
-  EXPECT_FAILURE(v_i, WASM_IF(WASM_GET_LOCAL(0), WASM_BR(2)));
-}
-
-TEST_F(AstDecoderTest, IfElseBreak) {
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_BR(0)));
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_BR(1)));
-  EXPECT_FAILURE(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_BR(2)));
-}
-
-TEST_F(AstDecoderTest, Block_else) {
-  byte code[] = {kExprI8Const, 0, kExprBlock, kExprElse, kExprEnd};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, IfNop) {
-  EXPECT_VERIFIES(v_i, WASM_IF(WASM_GET_LOCAL(0), WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfNopElseNop) {
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, If_end_end) {
-  static const byte code[] = {kExprGetLocal, 0, WASM_IF_OP, kExprEnd, kExprEnd};
-  EXPECT_VERIFIES_C(v_i, code);
-}
-
-TEST_F(AstDecoderTest, If_end_end_end) {
-  static const byte code[] = {kExprGetLocal, 0,        WASM_IF_OP,
-                              kExprEnd,      kExprEnd, kExprEnd};
-  EXPECT_FAILURE_C(v_i, code);
-}
-
-TEST_F(AstDecoderTest, If_falloff1) {
-  static const byte code[] = {kExprGetLocal, 0, kExprIf};
-  EXPECT_FAILURE_C(v_i, code);
-}
-
-TEST_F(AstDecoderTest, If_falloff2) {
-  static const byte code[] = {kExprGetLocal, 0, WASM_IF_OP};
-  EXPECT_FAILURE_C(v_i, code);
-}
-
-TEST_F(AstDecoderTest, IfElse_falloff) {
-  static const byte code[] = {kExprGetLocal, 0, WASM_IF_OP, kExprNop,
-                              kExprElse};
-  EXPECT_FAILURE_C(v_i, code);
-}
-
-TEST_F(AstDecoderTest, IfElseNop) {
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0),
-                                    WASM_SET_LOCAL(0, WASM_ZERO), WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfBlock1) {
-  EXPECT_VERIFIES(
-      v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), B1(WASM_SET_LOCAL(0, WASM_ZERO)),
-                        WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfBlock1b) {
-  EXPECT_VERIFIES(v_i,
-                  WASM_IF(WASM_GET_LOCAL(0), B1(WASM_SET_LOCAL(0, WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, IfBlock2a) {
-  EXPECT_VERIFIES(v_i,
-                  WASM_IF(WASM_GET_LOCAL(0), B2(WASM_SET_LOCAL(0, WASM_ZERO),
-                                                WASM_SET_LOCAL(0, WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, IfBlock2b) {
-  EXPECT_VERIFIES(
-      v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), B2(WASM_SET_LOCAL(0, WASM_ZERO),
-                                              WASM_SET_LOCAL(0, WASM_ZERO)),
-                        WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, IfElseSet) {
-  EXPECT_VERIFIES(v_i,
-                  WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_SET_LOCAL(0, WASM_ZERO),
-                               WASM_SET_LOCAL(0, WASM_I8(1))));
-}
-
-TEST_F(AstDecoderTest, Loop0) { EXPECT_VERIFIES(v_v, WASM_LOOP_OP, kExprEnd); }
-
-TEST_F(AstDecoderTest, Loop1) {
-  static const byte code[] = {WASM_LOOP(WASM_SET_LOCAL(0, WASM_ZERO))};
-  EXPECT_VERIFIES_C(v_i, code);
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(f_ff, code);
-}
-
-TEST_F(AstDecoderTest, Loop2) {
-  EXPECT_VERIFIES(v_i, WASM_LOOP(WASM_SET_LOCAL(0, WASM_ZERO),
-                                 WASM_SET_LOCAL(0, WASM_ZERO)));
-}
-
-TEST_F(AstDecoderTest, Loop1_continue) {
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_BR(0)));
-}
-
-TEST_F(AstDecoderTest, Loop1_break) {
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_BR(1)));
-}
-
-TEST_F(AstDecoderTest, Loop2_continue) {
-  EXPECT_VERIFIES(v_i, WASM_LOOP(WASM_SET_LOCAL(0, WASM_ZERO), WASM_BR(0)));
-}
-
-TEST_F(AstDecoderTest, Loop2_break) {
-  EXPECT_VERIFIES(v_i, WASM_LOOP(WASM_SET_LOCAL(0, WASM_ZERO), WASM_BR(1)));
-}
-
-TEST_F(AstDecoderTest, InfiniteLoop) {
-  EXPECT_VERIFIES(i_i, WASM_LOOP(WASM_BR(0)));
-  EXPECT_VERIFIES(i_i, WASM_LOOP(WASM_BRV(1, WASM_ZERO)));
-}
-
-TEST_F(AstDecoderTest, Loop2_unreachable) {
-  EXPECT_VERIFIES(i_i, WASM_LOOP(WASM_BR(0), WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, LoopType) {
-  EXPECT_VERIFIES(i_i, WASM_LOOP_I(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(l_l, WASM_LOOP_L(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(f_f, WASM_LOOP_F(WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(d_d, WASM_LOOP_D(WASM_GET_LOCAL(0)));
-}
-
-TEST_F(AstDecoderTest, LoopType_void) {
-  EXPECT_FAILURE(v_v, WASM_LOOP_I(WASM_ZERO));
-  EXPECT_FAILURE(v_v, WASM_LOOP_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(v_v, WASM_LOOP_F(WASM_F32(0.0)));
-  EXPECT_FAILURE(v_v, WASM_LOOP_D(WASM_F64(1.1)));
-}
-
-TEST_F(AstDecoderTest, LoopType_fail) {
-  EXPECT_FAILURE(i_i, WASM_LOOP_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(i_i, WASM_LOOP_F(WASM_F32(0.0)));
-  EXPECT_FAILURE(i_i, WASM_LOOP_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(l_l, WASM_LOOP_I(WASM_ZERO));
-  EXPECT_FAILURE(l_l, WASM_LOOP_F(WASM_F32(0.0)));
-  EXPECT_FAILURE(l_l, WASM_LOOP_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(f_ff, WASM_LOOP_I(WASM_ZERO));
-  EXPECT_FAILURE(f_ff, WASM_LOOP_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(f_ff, WASM_LOOP_D(WASM_F64(1.1)));
-
-  EXPECT_FAILURE(d_dd, WASM_LOOP_I(WASM_ZERO));
-  EXPECT_FAILURE(d_dd, WASM_LOOP_L(WASM_I64V_1(0)));
-  EXPECT_FAILURE(d_dd, WASM_LOOP_F(WASM_F32(0.0)));
-}
-
-TEST_F(AstDecoderTest, ReturnVoid1) {
-  static const byte code[] = {kExprNop};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-  EXPECT_FAILURE_C(i_f, code);
-}
-
-TEST_F(AstDecoderTest, ReturnVoid2) {
-  static const byte code[] = {WASM_BLOCK(WASM_BR(0))};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-  EXPECT_FAILURE_C(i_f, code);
-}
-
-TEST_F(AstDecoderTest, ReturnVoid3) {
-  EXPECT_FAILURE(v_v, kExprI8Const, 0);
-  EXPECT_FAILURE(v_v, kExprI32Const, 0);
-  EXPECT_FAILURE(v_v, kExprI64Const, 0);
-  EXPECT_FAILURE(v_v, kExprF32Const, 0, 0, 0, 0);
-  EXPECT_FAILURE(v_v, kExprF64Const, 0, 0, 0, 0, 0, 0, 0, 0);
-
-  EXPECT_FAILURE(v_i, kExprGetLocal, 0);
-}
-
-TEST_F(AstDecoderTest, Unreachable1) {
-  EXPECT_VERIFIES(v_v, kExprUnreachable);
-  EXPECT_VERIFIES(v_v, kExprUnreachable, kExprUnreachable);
-  EXPECT_VERIFIES(v_v, B2(WASM_UNREACHABLE, WASM_ZERO));
-  EXPECT_VERIFIES(v_v, B2(WASM_BR(0), WASM_ZERO));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_UNREACHABLE, WASM_ZERO));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_BR(0), WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, Unreachable_binop) {
-  EXPECT_VERIFIES(i_i, WASM_I32_AND(WASM_ZERO, WASM_UNREACHABLE));
-  EXPECT_VERIFIES(i_i, WASM_I32_AND(WASM_UNREACHABLE, WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, Unreachable_select) {
-  EXPECT_VERIFIES(i_i, WASM_SELECT(WASM_UNREACHABLE, WASM_ZERO, WASM_ZERO));
-  EXPECT_VERIFIES(i_i, WASM_SELECT(WASM_ZERO, WASM_UNREACHABLE, WASM_ZERO));
-  EXPECT_VERIFIES(i_i, WASM_SELECT(WASM_ZERO, WASM_ZERO, WASM_UNREACHABLE));
-}
-
-TEST_F(AstDecoderTest, If1) {
-  EXPECT_VERIFIES(i_i,
-                  WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_I8(9), WASM_I8(8)));
-  EXPECT_VERIFIES(
-      i_i, WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_I8(9), WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES(
-      i_i, WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0), WASM_I8(8)));
-}
-
-TEST_F(AstDecoderTest, If_off_end) {
-  static const byte kCode[] = {
-      WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0), WASM_GET_LOCAL(0))};
-  for (size_t len = 3; len < arraysize(kCode); len++) {
-    Verify(kError, sigs.i_i(), kCode, kCode + len);
-  }
-}
-
-TEST_F(AstDecoderTest, If_type1) {
-  // float|double ? 1 : 2
-  static const byte kCode[] = {
-      WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_I8(0), WASM_I8(2))};
-  EXPECT_VERIFIES_C(i_i, kCode);
-  EXPECT_FAILURE_C(i_f, kCode);
-  EXPECT_FAILURE_C(i_d, kCode);
-}
-
-TEST_F(AstDecoderTest, If_type2) {
-  // 1 ? float|double : 2
-  static const byte kCode[] = {
-      WASM_IF_ELSE_I(WASM_I8(1), WASM_GET_LOCAL(0), WASM_I8(1))};
-  EXPECT_VERIFIES_C(i_i, kCode);
-  EXPECT_FAILURE_C(i_f, kCode);
-  EXPECT_FAILURE_C(i_d, kCode);
-}
-
-TEST_F(AstDecoderTest, If_type3) {
-  // stmt ? 0 : 1
-  static const byte kCode[] = {
-      WASM_IF_ELSE_I(WASM_NOP, WASM_I8(0), WASM_I8(1))};
-  EXPECT_FAILURE_C(i_i, kCode);
-  EXPECT_FAILURE_C(i_f, kCode);
-  EXPECT_FAILURE_C(i_d, kCode);
-}
-
-TEST_F(AstDecoderTest, If_type4) {
-  // 0 ? stmt : 1
-  static const byte kCode[] = {
-      WASM_IF_ELSE_I(WASM_GET_LOCAL(0), WASM_NOP, WASM_I8(1))};
-  EXPECT_FAILURE_C(i_i, kCode);
-  EXPECT_FAILURE_C(i_f, kCode);
-  EXPECT_FAILURE_C(i_d, kCode);
-}
-
-TEST_F(AstDecoderTest, If_type5) {
-  // 0 ? 1 : stmt
-  static const byte kCode[] = {WASM_IF_ELSE_I(WASM_ZERO, WASM_I8(1), WASM_NOP)};
-  EXPECT_FAILURE_C(i_i, kCode);
-  EXPECT_FAILURE_C(i_f, kCode);
-  EXPECT_FAILURE_C(i_d, kCode);
-}
-
-TEST_F(AstDecoderTest, Int64Local_param) {
-  EXPECT_VERIFIES_C(l_l, kCodeGetLocal0);
-}
-
-TEST_F(AstDecoderTest, Int64Locals) {
-  for (byte i = 1; i < 8; i++) {
-    AddLocals(kAstI64, 1);
-    for (byte j = 0; j < i; j++) {
-      EXPECT_VERIFIES(l_v, WASM_GET_LOCAL(j));
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Int32Binops) {
-  TestBinop(kExprI32Add, sigs.i_ii());
-  TestBinop(kExprI32Sub, sigs.i_ii());
-  TestBinop(kExprI32Mul, sigs.i_ii());
-  TestBinop(kExprI32DivS, sigs.i_ii());
-  TestBinop(kExprI32DivU, sigs.i_ii());
-  TestBinop(kExprI32RemS, sigs.i_ii());
-  TestBinop(kExprI32RemU, sigs.i_ii());
-  TestBinop(kExprI32And, sigs.i_ii());
-  TestBinop(kExprI32Ior, sigs.i_ii());
-  TestBinop(kExprI32Xor, sigs.i_ii());
-  TestBinop(kExprI32Shl, sigs.i_ii());
-  TestBinop(kExprI32ShrU, sigs.i_ii());
-  TestBinop(kExprI32ShrS, sigs.i_ii());
-  TestBinop(kExprI32Eq, sigs.i_ii());
-  TestBinop(kExprI32LtS, sigs.i_ii());
-  TestBinop(kExprI32LeS, sigs.i_ii());
-  TestBinop(kExprI32LtU, sigs.i_ii());
-  TestBinop(kExprI32LeU, sigs.i_ii());
-}
-
-TEST_F(AstDecoderTest, DoubleBinops) {
-  TestBinop(kExprF64Add, sigs.d_dd());
-  TestBinop(kExprF64Sub, sigs.d_dd());
-  TestBinop(kExprF64Mul, sigs.d_dd());
-  TestBinop(kExprF64Div, sigs.d_dd());
-
-  TestBinop(kExprF64Eq, sigs.i_dd());
-  TestBinop(kExprF64Lt, sigs.i_dd());
-  TestBinop(kExprF64Le, sigs.i_dd());
-}
-
-TEST_F(AstDecoderTest, FloatBinops) {
-  TestBinop(kExprF32Add, sigs.f_ff());
-  TestBinop(kExprF32Sub, sigs.f_ff());
-  TestBinop(kExprF32Mul, sigs.f_ff());
-  TestBinop(kExprF32Div, sigs.f_ff());
-
-  TestBinop(kExprF32Eq, sigs.i_ff());
-  TestBinop(kExprF32Lt, sigs.i_ff());
-  TestBinop(kExprF32Le, sigs.i_ff());
-}
-
-TEST_F(AstDecoderTest, TypeConversions) {
-  TestUnop(kExprI32SConvertF32, kAstI32, kAstF32);
-  TestUnop(kExprI32SConvertF64, kAstI32, kAstF64);
-  TestUnop(kExprI32UConvertF32, kAstI32, kAstF32);
-  TestUnop(kExprI32UConvertF64, kAstI32, kAstF64);
-  TestUnop(kExprF64SConvertI32, kAstF64, kAstI32);
-  TestUnop(kExprF64UConvertI32, kAstF64, kAstI32);
-  TestUnop(kExprF64ConvertF32, kAstF64, kAstF32);
-  TestUnop(kExprF32SConvertI32, kAstF32, kAstI32);
-  TestUnop(kExprF32UConvertI32, kAstF32, kAstI32);
-  TestUnop(kExprF32ConvertF64, kAstF32, kAstF64);
-}
-
-TEST_F(AstDecoderTest, MacrosStmt) {
-  EXPECT_VERIFIES(v_i, WASM_SET_LOCAL(0, WASM_I32V_3(87348)));
-  EXPECT_VERIFIES(
-      v_i, WASM_STORE_MEM(MachineType::Int32(), WASM_I8(24), WASM_I8(40)));
-  EXPECT_VERIFIES(v_i, WASM_IF(WASM_GET_LOCAL(0), WASM_NOP));
-  EXPECT_VERIFIES(v_i, WASM_IF_ELSE(WASM_GET_LOCAL(0), WASM_NOP, WASM_NOP));
-  EXPECT_VERIFIES(v_v, WASM_NOP);
-  EXPECT_VERIFIES(v_v, B1(WASM_NOP));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_NOP));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_BR(0)));
-}
-
-TEST_F(AstDecoderTest, MacrosContinue) {
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_CONTINUE(0)));
-}
-
-TEST_F(AstDecoderTest, MacrosVariadic) {
-  EXPECT_VERIFIES(v_v, B2(WASM_NOP, WASM_NOP));
-  EXPECT_VERIFIES(v_v, B3(WASM_NOP, WASM_NOP, WASM_NOP));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_NOP, WASM_NOP));
-  EXPECT_VERIFIES(v_v, WASM_LOOP(WASM_NOP, WASM_NOP, WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, MacrosNestedBlocks) {
-  EXPECT_VERIFIES(v_v, B2(WASM_NOP, B2(WASM_NOP, WASM_NOP)));
-  EXPECT_VERIFIES(v_v, B3(WASM_NOP,                  // --
-                          B2(WASM_NOP, WASM_NOP),    // --
-                          B2(WASM_NOP, WASM_NOP)));  // --
-  EXPECT_VERIFIES(v_v, B1(B1(B2(WASM_NOP, WASM_NOP))));
-}
-
-TEST_F(AstDecoderTest, MultipleReturn) {
-  static LocalType kIntTypes5[] = {kAstI32, kAstI32, kAstI32, kAstI32, kAstI32};
-  FunctionSig sig_ii_v(2, 0, kIntTypes5);
-  EXPECT_VERIFIES_S(&sig_ii_v, WASM_RETURNN(2, WASM_ZERO, WASM_ONE));
-  EXPECT_FAILURE_S(&sig_ii_v, WASM_RETURNN(1, WASM_ZERO));
-
-  FunctionSig sig_iii_v(3, 0, kIntTypes5);
-  EXPECT_VERIFIES_S(&sig_iii_v,
-                    WASM_RETURNN(3, WASM_ZERO, WASM_ONE, WASM_I8(44)));
-  EXPECT_FAILURE_S(&sig_iii_v, WASM_RETURNN(2, WASM_ZERO, WASM_ONE));
-}
-
-TEST_F(AstDecoderTest, MultipleReturn_fallthru) {
-  static LocalType kIntTypes5[] = {kAstI32, kAstI32, kAstI32, kAstI32, kAstI32};
-  FunctionSig sig_ii_v(2, 0, kIntTypes5);
-
-  EXPECT_VERIFIES_S(&sig_ii_v, WASM_ZERO, WASM_ONE);
-  EXPECT_FAILURE_S(&sig_ii_v, WASM_ZERO);
-
-  FunctionSig sig_iii_v(3, 0, kIntTypes5);
-  EXPECT_VERIFIES_S(&sig_iii_v, WASM_ZERO, WASM_ONE, WASM_I8(44));
-  EXPECT_FAILURE_S(&sig_iii_v, WASM_ZERO, WASM_ONE);
-}
-
-TEST_F(AstDecoderTest, MacrosInt32) {
-  EXPECT_VERIFIES(i_i, WASM_I32_ADD(WASM_GET_LOCAL(0), WASM_I8(12)));
-  EXPECT_VERIFIES(i_i, WASM_I32_SUB(WASM_GET_LOCAL(0), WASM_I8(13)));
-  EXPECT_VERIFIES(i_i, WASM_I32_MUL(WASM_GET_LOCAL(0), WASM_I8(14)));
-  EXPECT_VERIFIES(i_i, WASM_I32_DIVS(WASM_GET_LOCAL(0), WASM_I8(15)));
-  EXPECT_VERIFIES(i_i, WASM_I32_DIVU(WASM_GET_LOCAL(0), WASM_I8(16)));
-  EXPECT_VERIFIES(i_i, WASM_I32_REMS(WASM_GET_LOCAL(0), WASM_I8(17)));
-  EXPECT_VERIFIES(i_i, WASM_I32_REMU(WASM_GET_LOCAL(0), WASM_I8(18)));
-  EXPECT_VERIFIES(i_i, WASM_I32_AND(WASM_GET_LOCAL(0), WASM_I8(19)));
-  EXPECT_VERIFIES(i_i, WASM_I32_IOR(WASM_GET_LOCAL(0), WASM_I8(20)));
-  EXPECT_VERIFIES(i_i, WASM_I32_XOR(WASM_GET_LOCAL(0), WASM_I8(21)));
-  EXPECT_VERIFIES(i_i, WASM_I32_SHL(WASM_GET_LOCAL(0), WASM_I8(22)));
-  EXPECT_VERIFIES(i_i, WASM_I32_SHR(WASM_GET_LOCAL(0), WASM_I8(23)));
-  EXPECT_VERIFIES(i_i, WASM_I32_SAR(WASM_GET_LOCAL(0), WASM_I8(24)));
-  EXPECT_VERIFIES(i_i, WASM_I32_ROR(WASM_GET_LOCAL(0), WASM_I8(24)));
-  EXPECT_VERIFIES(i_i, WASM_I32_ROL(WASM_GET_LOCAL(0), WASM_I8(24)));
-  EXPECT_VERIFIES(i_i, WASM_I32_EQ(WASM_GET_LOCAL(0), WASM_I8(25)));
-  EXPECT_VERIFIES(i_i, WASM_I32_NE(WASM_GET_LOCAL(0), WASM_I8(25)));
-
-  EXPECT_VERIFIES(i_i, WASM_I32_LTS(WASM_GET_LOCAL(0), WASM_I8(26)));
-  EXPECT_VERIFIES(i_i, WASM_I32_LES(WASM_GET_LOCAL(0), WASM_I8(27)));
-  EXPECT_VERIFIES(i_i, WASM_I32_LTU(WASM_GET_LOCAL(0), WASM_I8(28)));
-  EXPECT_VERIFIES(i_i, WASM_I32_LEU(WASM_GET_LOCAL(0), WASM_I8(29)));
-
-  EXPECT_VERIFIES(i_i, WASM_I32_GTS(WASM_GET_LOCAL(0), WASM_I8(26)));
-  EXPECT_VERIFIES(i_i, WASM_I32_GES(WASM_GET_LOCAL(0), WASM_I8(27)));
-  EXPECT_VERIFIES(i_i, WASM_I32_GTU(WASM_GET_LOCAL(0), WASM_I8(28)));
-  EXPECT_VERIFIES(i_i, WASM_I32_GEU(WASM_GET_LOCAL(0), WASM_I8(29)));
-}
-
-TEST_F(AstDecoderTest, MacrosInt64) {
-  EXPECT_VERIFIES(l_ll, WASM_I64_ADD(WASM_GET_LOCAL(0), WASM_I64V_1(12)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_SUB(WASM_GET_LOCAL(0), WASM_I64V_1(13)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_MUL(WASM_GET_LOCAL(0), WASM_I64V_1(14)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_DIVS(WASM_GET_LOCAL(0), WASM_I64V_1(15)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_DIVU(WASM_GET_LOCAL(0), WASM_I64V_1(16)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_REMS(WASM_GET_LOCAL(0), WASM_I64V_1(17)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_REMU(WASM_GET_LOCAL(0), WASM_I64V_1(18)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_AND(WASM_GET_LOCAL(0), WASM_I64V_1(19)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_IOR(WASM_GET_LOCAL(0), WASM_I64V_1(20)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_XOR(WASM_GET_LOCAL(0), WASM_I64V_1(21)));
-
-  EXPECT_VERIFIES(l_ll, WASM_I64_SHL(WASM_GET_LOCAL(0), WASM_I64V_1(22)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_SHR(WASM_GET_LOCAL(0), WASM_I64V_1(23)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_SAR(WASM_GET_LOCAL(0), WASM_I64V_1(24)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_ROR(WASM_GET_LOCAL(0), WASM_I64V_1(24)));
-  EXPECT_VERIFIES(l_ll, WASM_I64_ROL(WASM_GET_LOCAL(0), WASM_I64V_1(24)));
-
-  EXPECT_VERIFIES(i_ll, WASM_I64_LTS(WASM_GET_LOCAL(0), WASM_I64V_1(26)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_LES(WASM_GET_LOCAL(0), WASM_I64V_1(27)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_LTU(WASM_GET_LOCAL(0), WASM_I64V_1(28)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_LEU(WASM_GET_LOCAL(0), WASM_I64V_1(29)));
-
-  EXPECT_VERIFIES(i_ll, WASM_I64_GTS(WASM_GET_LOCAL(0), WASM_I64V_1(26)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_GES(WASM_GET_LOCAL(0), WASM_I64V_1(27)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_GTU(WASM_GET_LOCAL(0), WASM_I64V_1(28)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_GEU(WASM_GET_LOCAL(0), WASM_I64V_1(29)));
-
-  EXPECT_VERIFIES(i_ll, WASM_I64_EQ(WASM_GET_LOCAL(0), WASM_I64V_1(25)));
-  EXPECT_VERIFIES(i_ll, WASM_I64_NE(WASM_GET_LOCAL(0), WASM_I64V_1(25)));
-}
-
-TEST_F(AstDecoderTest, AllSimpleExpressions) {
-// Test all simple expressions which are described by a signature.
-#define DECODE_TEST(name, opcode, sig)                      \
-  {                                                         \
-    FunctionSig* sig = WasmOpcodes::Signature(kExpr##name); \
-    if (sig->parameter_count() == 1) {                      \
-      TestUnop(kExpr##name, sig);                           \
-    } else {                                                \
-      TestBinop(kExpr##name, sig);                          \
-    }                                                       \
-  }
-
-  FOREACH_SIMPLE_OPCODE(DECODE_TEST);
-
-#undef DECODE_TEST
-}
-
-TEST_F(AstDecoderTest, MemorySize) {
-  byte code[] = {kExprMemorySize, 0};
-  EXPECT_VERIFIES_C(i_i, code);
-  EXPECT_FAILURE_C(f_ff, code);
-}
-
-TEST_F(AstDecoderTest, LoadMemOffset) {
-  for (int offset = 0; offset < 128; offset += 7) {
-    byte code[] = {kExprI8Const, 0, kExprI32LoadMem, ZERO_ALIGNMENT,
-                   static_cast<byte>(offset)};
-    EXPECT_VERIFIES_C(i_i, code);
-  }
-}
-
-TEST_F(AstDecoderTest, LoadMemAlignment) {
-  struct {
-    WasmOpcode instruction;
-    uint32_t maximum_aligment;
-  } values[] = {
-      {kExprI32LoadMem8U, 0},   // --
-      {kExprI32LoadMem8S, 0},   // --
-      {kExprI32LoadMem16U, 1},  // --
-      {kExprI32LoadMem16S, 1},  // --
-      {kExprI64LoadMem8U, 0},   // --
-      {kExprI64LoadMem8S, 0},   // --
-      {kExprI64LoadMem16U, 1},  // --
-      {kExprI64LoadMem16S, 1},  // --
-      {kExprI64LoadMem32U, 2},  // --
-      {kExprI64LoadMem32S, 2},  // --
-      {kExprI32LoadMem, 2},     // --
-      {kExprI64LoadMem, 3},     // --
-      {kExprF32LoadMem, 2},     // --
-      {kExprF64LoadMem, 3},     // --
-  };
-
-  for (size_t i = 0; i < arraysize(values); i++) {
-    for (byte alignment = 0; alignment <= 4; alignment++) {
-      byte code[] = {WASM_ZERO, static_cast<byte>(values[i].instruction),
-                     alignment, ZERO_OFFSET, WASM_DROP};
-      if (static_cast<uint32_t>(alignment) <= values[i].maximum_aligment) {
-        EXPECT_VERIFIES_C(v_i, code);
-      } else {
-        EXPECT_FAILURE_C(v_i, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, StoreMemOffset) {
-  for (int offset = 0; offset < 128; offset += 7) {
-    byte code[] = {WASM_STORE_MEM_OFFSET(MachineType::Int32(), offset,
-                                         WASM_ZERO, WASM_ZERO)};
-    EXPECT_VERIFIES_C(v_i, code);
-  }
-}
-
-TEST_F(AstDecoderTest, StoreMemOffset_void) {
-  EXPECT_FAILURE(i_i, WASM_STORE_MEM_OFFSET(MachineType::Int32(), 0, WASM_ZERO,
-                                            WASM_ZERO));
-}
-
-#define BYTE0(x) ((x)&0x7F)
-#define BYTE1(x) ((x >> 7) & 0x7F)
-#define BYTE2(x) ((x >> 14) & 0x7F)
-#define BYTE3(x) ((x >> 21) & 0x7F)
-
-#define VARINT1(x) BYTE0(x)
-#define VARINT2(x) BYTE0(x) | 0x80, BYTE1(x)
-#define VARINT3(x) BYTE0(x) | 0x80, BYTE1(x) | 0x80, BYTE2(x)
-#define VARINT4(x) BYTE0(x) | 0x80, BYTE1(x) | 0x80, BYTE2(x) | 0x80, BYTE3(x)
-
-TEST_F(AstDecoderTest, LoadMemOffset_varint) {
-  EXPECT_VERIFIES(i_i, WASM_ZERO, kExprI32LoadMem, ZERO_ALIGNMENT,
-                  VARINT1(0x45));
-  EXPECT_VERIFIES(i_i, WASM_ZERO, kExprI32LoadMem, ZERO_ALIGNMENT,
-                  VARINT2(0x3999));
-  EXPECT_VERIFIES(i_i, WASM_ZERO, kExprI32LoadMem, ZERO_ALIGNMENT,
-                  VARINT3(0x344445));
-  EXPECT_VERIFIES(i_i, WASM_ZERO, kExprI32LoadMem, ZERO_ALIGNMENT,
-                  VARINT4(0x36666667));
-}
-
-TEST_F(AstDecoderTest, StoreMemOffset_varint) {
-  EXPECT_VERIFIES(v_i, WASM_ZERO, WASM_ZERO, kExprI32StoreMem, ZERO_ALIGNMENT,
-                  VARINT1(0x33));
-  EXPECT_VERIFIES(v_i, WASM_ZERO, WASM_ZERO, kExprI32StoreMem, ZERO_ALIGNMENT,
-                  VARINT2(0x1111));
-  EXPECT_VERIFIES(v_i, WASM_ZERO, WASM_ZERO, kExprI32StoreMem, ZERO_ALIGNMENT,
-                  VARINT3(0x222222));
-  EXPECT_VERIFIES(v_i, WASM_ZERO, WASM_ZERO, kExprI32StoreMem, ZERO_ALIGNMENT,
-                  VARINT4(0x44444444));
-}
-
-TEST_F(AstDecoderTest, AllLoadMemCombinations) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType local_type = kLocalTypes[i];
-    for (size_t j = 0; j < arraysize(machineTypes); j++) {
-      MachineType mem_type = machineTypes[j];
-      byte code[] = {WASM_LOAD_MEM(mem_type, WASM_ZERO)};
-      FunctionSig sig(1, 0, &local_type);
-      if (local_type == WasmOpcodes::LocalTypeFor(mem_type)) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, AllStoreMemCombinations) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType local_type = kLocalTypes[i];
-    for (size_t j = 0; j < arraysize(machineTypes); j++) {
-      MachineType mem_type = machineTypes[j];
-      byte code[] = {WASM_STORE_MEM(mem_type, WASM_ZERO, WASM_GET_LOCAL(0))};
-      FunctionSig sig(0, 1, &local_type);
-      if (local_type == WasmOpcodes::LocalTypeFor(mem_type)) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-namespace {
-// A helper for tests that require a module environment for functions and
-// globals.
-class TestModuleEnv : public ModuleEnv {
- public:
-  explicit TestModuleEnv(ModuleOrigin origin = kWasmOrigin)
-      : ModuleEnv(&mod, nullptr) {
-    mod.origin = origin;
-  }
-  byte AddGlobal(LocalType type, bool mutability = true) {
-    mod.globals.push_back({type, mutability, WasmInitExpr(), 0, false, false});
-    CHECK(mod.globals.size() <= 127);
-    return static_cast<byte>(mod.globals.size() - 1);
-  }
-  byte AddSignature(FunctionSig* sig) {
-    mod.signatures.push_back(sig);
-    CHECK(mod.signatures.size() <= 127);
-    return static_cast<byte>(mod.signatures.size() - 1);
-  }
-  byte AddFunction(FunctionSig* sig) {
-    mod.functions.push_back({sig,      // sig
-                             0,        // func_index
-                             0,        // sig_index
-                             0,        // name_offset
-                             0,        // name_length
-                             0,        // code_start_offset
-                             0,        // code_end_offset
-                             false,    // import
-                             false});  // export
-    CHECK(mod.functions.size() <= 127);
-    return static_cast<byte>(mod.functions.size() - 1);
-  }
-  byte AddImport(FunctionSig* sig) {
-    byte result = AddFunction(sig);
-    mod.functions[result].imported = true;
-    return result;
-  }
-
-  void InitializeFunctionTable() {
-    mod.function_tables.push_back(
-        {0, 0, true, std::vector<int32_t>(), false, false, SignatureMap()});
-  }
-
- private:
-  WasmModule mod;
-};
-}  // namespace
-
-TEST_F(AstDecoderTest, SimpleCalls) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddFunction(sigs.i_v());
-  module_env.AddFunction(sigs.i_i());
-  module_env.AddFunction(sigs.i_ii());
-
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION0(0));
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION(1, WASM_I8(27)));
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION(2, WASM_I8(37), WASM_I8(77)));
-}
-
-TEST_F(AstDecoderTest, CallsWithTooFewArguments) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddFunction(sigs.i_i());
-  module_env.AddFunction(sigs.i_ii());
-  module_env.AddFunction(sigs.f_ff());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION0(0));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(1, WASM_ZERO));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(2, WASM_GET_LOCAL(0)));
-}
-
-TEST_F(AstDecoderTest, CallsWithMismatchedSigs2) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddFunction(sigs.i_i());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_I64V_1(17)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_F32(17.1)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_F64(17.1)));
-}
-
-TEST_F(AstDecoderTest, CallsWithMismatchedSigs3) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddFunction(sigs.i_f());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_I8(17)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_I64V_1(27)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(0, WASM_F64(37.2)));
-
-  module_env.AddFunction(sigs.i_d());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(1, WASM_I8(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(1, WASM_I64V_1(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(1, WASM_F32(17.6)));
-}
-
-TEST_F(AstDecoderTest, MultiReturn) {
-  FLAG_wasm_mv_prototype = true;
-  LocalType storage[] = {kAstI32, kAstI32};
-  FunctionSig sig_ii_v(2, 0, storage);
-  FunctionSig sig_v_ii(0, 2, storage);
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddFunction(&sig_v_ii);
-  module_env.AddFunction(&sig_ii_v);
-
-  EXPECT_VERIFIES_S(&sig_ii_v, WASM_CALL_FUNCTION0(1));
-  EXPECT_VERIFIES(v_v, WASM_CALL_FUNCTION0(1), WASM_DROP, WASM_DROP);
-  EXPECT_VERIFIES(v_v, WASM_CALL_FUNCTION0(1), kExprCallFunction, 0);
-}
-
-TEST_F(AstDecoderTest, MultiReturnType) {
-  FLAG_wasm_mv_prototype = true;
-  for (size_t a = 0; a < arraysize(kLocalTypes); a++) {
-    for (size_t b = 0; b < arraysize(kLocalTypes); b++) {
-      for (size_t c = 0; c < arraysize(kLocalTypes); c++) {
-        for (size_t d = 0; d < arraysize(kLocalTypes); d++) {
-          LocalType storage_ab[] = {kLocalTypes[a], kLocalTypes[b]};
-          FunctionSig sig_ab_v(2, 0, storage_ab);
-          LocalType storage_cd[] = {kLocalTypes[c], kLocalTypes[d]};
-          FunctionSig sig_cd_v(2, 0, storage_cd);
-
-          TestModuleEnv module_env;
-          module = &module_env;
-          module_env.AddFunction(&sig_cd_v);
-
-          EXPECT_VERIFIES_S(&sig_cd_v, WASM_CALL_FUNCTION0(0));
-
-          if (a == c && b == d) {
-            EXPECT_VERIFIES_S(&sig_ab_v, WASM_CALL_FUNCTION0(0));
-          } else {
-            EXPECT_FAILURE_S(&sig_ab_v, WASM_CALL_FUNCTION0(0));
-          }
-        }
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, SimpleIndirectCalls) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
-  module = &module_env;
-
-  byte f0 = module_env.AddSignature(sigs.i_v());
-  byte f1 = module_env.AddSignature(sigs.i_i());
-  byte f2 = module_env.AddSignature(sigs.i_ii());
-
-  EXPECT_VERIFIES_S(sig, WASM_CALL_INDIRECT0(f0, WASM_ZERO));
-  EXPECT_VERIFIES_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I8(22)));
-  EXPECT_VERIFIES_S(
-      sig, WASM_CALL_INDIRECT2(f2, WASM_ZERO, WASM_I8(32), WASM_I8(72)));
-}
-
-TEST_F(AstDecoderTest, IndirectCallsOutOfBounds) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
-  module = &module_env;
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(0, WASM_ZERO));
-  module_env.AddSignature(sigs.i_v());
-  EXPECT_VERIFIES_S(sig, WASM_CALL_INDIRECT0(0, WASM_ZERO));
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(1, WASM_ZERO, WASM_I8(22)));
-  module_env.AddSignature(sigs.i_i());
-  EXPECT_VERIFIES_S(sig, WASM_CALL_INDIRECT1(1, WASM_ZERO, WASM_I8(27)));
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(2, WASM_ZERO, WASM_I8(27)));
-}
-
-TEST_F(AstDecoderTest, IndirectCallsWithMismatchedSigs3) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module_env.InitializeFunctionTable();
-  module = &module_env;
-
-  byte f0 = module_env.AddFunction(sigs.i_f());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f0, WASM_ZERO, WASM_I8(17)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f0, WASM_ZERO, WASM_I64V_1(27)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f0, WASM_ZERO, WASM_F64(37.2)));
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(f0, WASM_I8(17)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(f0, WASM_I64V_1(27)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(f0, WASM_F64(37.2)));
-
-  byte f1 = module_env.AddFunction(sigs.i_d());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I8(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I64V_1(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_F32(17.6)));
-}
-
-TEST_F(AstDecoderTest, IndirectCallsWithoutTableCrash) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  byte f0 = module_env.AddSignature(sigs.i_v());
-  byte f1 = module_env.AddSignature(sigs.i_i());
-  byte f2 = module_env.AddSignature(sigs.i_ii());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT0(f0, WASM_ZERO));
-  EXPECT_FAILURE_S(sig, WASM_CALL_INDIRECT1(f1, WASM_ZERO, WASM_I8(22)));
-  EXPECT_FAILURE_S(
-      sig, WASM_CALL_INDIRECT2(f2, WASM_ZERO, WASM_I8(32), WASM_I8(72)));
-}
-
-TEST_F(AstDecoderTest, SimpleImportCalls) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  byte f0 = module_env.AddImport(sigs.i_v());
-  byte f1 = module_env.AddImport(sigs.i_i());
-  byte f2 = module_env.AddImport(sigs.i_ii());
-
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION0(f0));
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION(f1, WASM_I8(22)));
-  EXPECT_VERIFIES_S(sig, WASM_CALL_FUNCTION(f2, WASM_I8(32), WASM_I8(72)));
-}
-
-TEST_F(AstDecoderTest, ImportCallsWithMismatchedSigs3) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  byte f0 = module_env.AddImport(sigs.i_f());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION0(f0));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f0, WASM_I8(17)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f0, WASM_I64V_1(27)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f0, WASM_F64(37.2)));
-
-  byte f1 = module_env.AddImport(sigs.i_d());
-
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION0(f1));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f1, WASM_I8(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f1, WASM_I64V_1(16)));
-  EXPECT_FAILURE_S(sig, WASM_CALL_FUNCTION(f1, WASM_F32(17.6)));
-}
-
-TEST_F(AstDecoderTest, Int32Globals) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddGlobal(kAstI32);
-
-  EXPECT_VERIFIES_S(sig, WASM_GET_GLOBAL(0));
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)));
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)), WASM_ZERO);
-}
-
-TEST_F(AstDecoderTest, ImmutableGlobal) {
-  FunctionSig* sig = sigs.v_v();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  uint32_t g0 = module_env.AddGlobal(kAstI32, true);
-  uint32_t g1 = module_env.AddGlobal(kAstI32, false);
-
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(g0, WASM_ZERO));
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(g1, WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, Int32Globals_fail) {
-  FunctionSig* sig = sigs.i_i();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddGlobal(kAstI64);
-  module_env.AddGlobal(kAstI64);
-  module_env.AddGlobal(kAstF32);
-  module_env.AddGlobal(kAstF64);
-
-  EXPECT_FAILURE_S(sig, WASM_GET_GLOBAL(0));
-  EXPECT_FAILURE_S(sig, WASM_GET_GLOBAL(1));
-  EXPECT_FAILURE_S(sig, WASM_GET_GLOBAL(2));
-  EXPECT_FAILURE_S(sig, WASM_GET_GLOBAL(3));
-
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)), WASM_ZERO);
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(1, WASM_GET_LOCAL(0)), WASM_ZERO);
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(2, WASM_GET_LOCAL(0)), WASM_ZERO);
-  EXPECT_FAILURE_S(sig, WASM_SET_GLOBAL(3, WASM_GET_LOCAL(0)), WASM_ZERO);
-}
-
-TEST_F(AstDecoderTest, Int64Globals) {
-  FunctionSig* sig = sigs.l_l();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddGlobal(kAstI64);
-  module_env.AddGlobal(kAstI64);
-
-  EXPECT_VERIFIES_S(sig, WASM_GET_GLOBAL(0));
-  EXPECT_VERIFIES_S(sig, WASM_GET_GLOBAL(1));
-
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)),
-                    WASM_GET_LOCAL(0));
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(1, WASM_GET_LOCAL(0)),
-                    WASM_GET_LOCAL(0));
-}
-
-TEST_F(AstDecoderTest, Float32Globals) {
-  FunctionSig* sig = sigs.f_ff();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddGlobal(kAstF32);
-
-  EXPECT_VERIFIES_S(sig, WASM_GET_GLOBAL(0));
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)),
-                    WASM_GET_LOCAL(0));
-}
-
-TEST_F(AstDecoderTest, Float64Globals) {
-  FunctionSig* sig = sigs.d_dd();
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  module_env.AddGlobal(kAstF64);
-
-  EXPECT_VERIFIES_S(sig, WASM_GET_GLOBAL(0));
-  EXPECT_VERIFIES_S(sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)),
-                    WASM_GET_LOCAL(0));
-}
-
-TEST_F(AstDecoderTest, AllGetGlobalCombinations) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType local_type = kLocalTypes[i];
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType global_type = kLocalTypes[j];
-      FunctionSig sig(1, 0, &local_type);
-      TestModuleEnv module_env;
-      module = &module_env;
-      module_env.AddGlobal(global_type);
-      if (local_type == global_type) {
-        EXPECT_VERIFIES_S(&sig, WASM_GET_GLOBAL(0));
-      } else {
-        EXPECT_FAILURE_S(&sig, WASM_GET_GLOBAL(0));
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, AllSetGlobalCombinations) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType local_type = kLocalTypes[i];
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType global_type = kLocalTypes[j];
-      FunctionSig sig(0, 1, &local_type);
-      TestModuleEnv module_env;
-      module = &module_env;
-      module_env.AddGlobal(global_type);
-      if (local_type == global_type) {
-        EXPECT_VERIFIES_S(&sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)));
-      } else {
-        EXPECT_FAILURE_S(&sig, WASM_SET_GLOBAL(0, WASM_GET_LOCAL(0)));
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, WasmGrowMemory) {
-  TestModuleEnv module_env;
-  module = &module_env;
-
-  byte code[] = {WASM_GET_LOCAL(0), kExprGrowMemory, 0};
-  EXPECT_VERIFIES_C(i_i, code);
-  EXPECT_FAILURE_C(i_d, code);
-}
-
-TEST_F(AstDecoderTest, AsmJsGrowMemory) {
-  TestModuleEnv module_env(kAsmJsOrigin);
-  module = &module_env;
-
-  byte code[] = {WASM_GET_LOCAL(0), kExprGrowMemory, 0};
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, AsmJsBinOpsCheckOrigin) {
-  LocalType float32int32float32[] = {kAstF32, kAstI32, kAstF32};
-  FunctionSig sig_f_if(1, 2, float32int32float32);
-  LocalType float64int32float64[] = {kAstF64, kAstI32, kAstF64};
-  FunctionSig sig_d_id(1, 2, float64int32float64);
-  struct {
-    WasmOpcode op;
-    FunctionSig* sig;
-  } AsmJsBinOps[] = {
-      {kExprF64Atan2, sigs.d_dd()},
-      {kExprF64Pow, sigs.d_dd()},
-      {kExprF64Mod, sigs.d_dd()},
-      {kExprI32AsmjsDivS, sigs.i_ii()},
-      {kExprI32AsmjsDivU, sigs.i_ii()},
-      {kExprI32AsmjsRemS, sigs.i_ii()},
-      {kExprI32AsmjsRemU, sigs.i_ii()},
-      {kExprI32AsmjsStoreMem8, sigs.i_ii()},
-      {kExprI32AsmjsStoreMem16, sigs.i_ii()},
-      {kExprI32AsmjsStoreMem, sigs.i_ii()},
-      {kExprF32AsmjsStoreMem, &sig_f_if},
-      {kExprF64AsmjsStoreMem, &sig_d_id},
-  };
-
-  {
-    TestModuleEnv module_env(kAsmJsOrigin);
-    module = &module_env;
-    for (size_t i = 0; i < arraysize(AsmJsBinOps); i++) {
-      TestBinop(AsmJsBinOps[i].op, AsmJsBinOps[i].sig);
-    }
-  }
-
-  {
-    TestModuleEnv module_env;
-    module = &module_env;
-    for (size_t i = 0; i < arraysize(AsmJsBinOps); i++) {
-      byte code[] = {
-          WASM_BINOP(AsmJsBinOps[i].op, WASM_GET_LOCAL(0), WASM_GET_LOCAL(1))};
-      EXPECT_FAILURE_SC(AsmJsBinOps[i].sig, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, AsmJsUnOpsCheckOrigin) {
-  LocalType float32int32[] = {kAstF32, kAstI32};
-  FunctionSig sig_f_i(1, 1, float32int32);
-  LocalType float64int32[] = {kAstF64, kAstI32};
-  FunctionSig sig_d_i(1, 1, float64int32);
-  struct {
-    WasmOpcode op;
-    FunctionSig* sig;
-  } AsmJsUnOps[] = {{kExprF64Acos, sigs.d_d()},
-                    {kExprF64Asin, sigs.d_d()},
-                    {kExprF64Atan, sigs.d_d()},
-                    {kExprF64Cos, sigs.d_d()},
-                    {kExprF64Sin, sigs.d_d()},
-                    {kExprF64Tan, sigs.d_d()},
-                    {kExprF64Exp, sigs.d_d()},
-                    {kExprF64Log, sigs.d_d()},
-                    {kExprI32AsmjsLoadMem8S, sigs.i_i()},
-                    {kExprI32AsmjsLoadMem8U, sigs.i_i()},
-                    {kExprI32AsmjsLoadMem16S, sigs.i_i()},
-                    {kExprI32AsmjsLoadMem16U, sigs.i_i()},
-                    {kExprI32AsmjsLoadMem, sigs.i_i()},
-                    {kExprF32AsmjsLoadMem, &sig_f_i},
-                    {kExprF64AsmjsLoadMem, &sig_d_i},
-                    {kExprI32AsmjsSConvertF32, sigs.i_f()},
-                    {kExprI32AsmjsUConvertF32, sigs.i_f()},
-                    {kExprI32AsmjsSConvertF64, sigs.i_d()},
-                    {kExprI32AsmjsUConvertF64, sigs.i_d()}};
-  {
-    TestModuleEnv module_env(kAsmJsOrigin);
-    module = &module_env;
-    for (size_t i = 0; i < arraysize(AsmJsUnOps); i++) {
-      TestUnop(AsmJsUnOps[i].op, AsmJsUnOps[i].sig);
-    }
-  }
-
-  {
-    TestModuleEnv module_env;
-    module = &module_env;
-    for (size_t i = 0; i < arraysize(AsmJsUnOps); i++) {
-      byte code[] = {WASM_UNOP(AsmJsUnOps[i].op, WASM_GET_LOCAL(0))};
-      EXPECT_FAILURE_SC(AsmJsUnOps[i].sig, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakEnd) {
-  EXPECT_VERIFIES(
-      i_i, WASM_BLOCK_I(WASM_I32_ADD(WASM_BRV(0, WASM_ZERO), WASM_ZERO)));
-  EXPECT_VERIFIES(
-      i_i, WASM_BLOCK_I(WASM_I32_ADD(WASM_ZERO, WASM_BRV(0, WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, BreakIfBinop) {
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_I32_ADD(
-                           WASM_BRV_IF(0, WASM_ZERO, WASM_ZERO), WASM_ZERO)));
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_I32_ADD(
-                           WASM_ZERO, WASM_BRV_IF(0, WASM_ZERO, WASM_ZERO))));
-  EXPECT_VERIFIES_S(
-      sigs.f_ff(),
-      WASM_BLOCK_F(WASM_F32_ABS(WASM_BRV_IF(0, WASM_F32(0.0f), WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, BreakIfBinop_fail) {
-  EXPECT_FAILURE_S(
-      sigs.f_ff(),
-      WASM_BLOCK_F(WASM_F32_ABS(WASM_BRV_IF(0, WASM_ZERO, WASM_ZERO))));
-  EXPECT_FAILURE_S(
-      sigs.i_i(),
-      WASM_BLOCK_I(WASM_F32_ABS(WASM_BRV_IF(0, WASM_F32(0.0f), WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, BreakNesting1) {
-  for (int i = 0; i < 5; i++) {
-    // (block[2] (loop[2] (if (get p) break[N]) (set p 1)) p)
-    byte code[] = {WASM_BLOCK_I(
-        WASM_LOOP(WASM_IF(WASM_GET_LOCAL(0), WASM_BRV(i + 1, WASM_ZERO)),
-                  WASM_SET_LOCAL(0, WASM_I8(1))),
-        WASM_ZERO)};
-    if (i < 3) {
-      EXPECT_VERIFIES_C(i_i, code);
-    } else {
-      EXPECT_FAILURE_C(i_i, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakNesting2) {
-  for (int i = 0; i < 7; i++) {
-    byte code[] = {B1(WASM_LOOP(WASM_IF(WASM_ZERO, WASM_BR(i)), WASM_NOP))};
-    if (i <= 3) {
-      EXPECT_VERIFIES_C(v_v, code);
-    } else {
-      EXPECT_FAILURE_C(v_v, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakNesting3) {
-  for (int i = 0; i < 7; i++) {
-    // (block[1] (loop[1] (block[1] (if 0 break[N])
-    byte code[] = {
-        WASM_BLOCK(WASM_LOOP(B1(WASM_IF(WASM_ZERO, WASM_BR(i + 1)))))};
-    if (i < 4) {
-      EXPECT_VERIFIES_C(v_v, code);
-    } else {
-      EXPECT_FAILURE_C(v_v, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreaksWithMultipleTypes) {
-  EXPECT_FAILURE(i_i, B2(WASM_BRV_IF_ZERO(0, WASM_I8(7)), WASM_F32(7.7)));
-
-  EXPECT_FAILURE(i_i, B2(WASM_BRV_IF_ZERO(0, WASM_I8(7)),
-                         WASM_BRV_IF_ZERO(0, WASM_F32(7.7))));
-  EXPECT_FAILURE(
-      i_i, B3(WASM_BRV_IF_ZERO(0, WASM_I8(8)), WASM_BRV_IF_ZERO(0, WASM_I8(0)),
-              WASM_BRV_IF_ZERO(0, WASM_F32(7.7))));
-  EXPECT_FAILURE(i_i, B3(WASM_BRV_IF_ZERO(0, WASM_I8(9)),
-                         WASM_BRV_IF_ZERO(0, WASM_F32(7.7)),
-                         WASM_BRV_IF_ZERO(0, WASM_I8(11))));
-}
-
-TEST_F(AstDecoderTest, BreakNesting_6_levels) {
-  for (int mask = 0; mask < 64; mask++) {
-    for (int i = 0; i < 14; i++) {
-      byte code[] = {WASM_BLOCK(WASM_BLOCK(
-          WASM_BLOCK(WASM_BLOCK(WASM_BLOCK(WASM_BLOCK(WASM_BR(i)))))))};
-
-      int depth = 6;
-      int m = mask;
-      for (size_t pos = 0; pos < sizeof(code); pos++) {
-        if (code[pos] != kExprBlock) continue;
-        if (m & 1) {
-          code[pos] = kExprLoop;
-          code[pos + 1] = kLocalVoid;
-        }
-        m >>= 1;
-      }
-
-      if (i <= depth) {
-        EXPECT_VERIFIES_C(v_v, code);
-      } else {
-        EXPECT_FAILURE_C(v_v, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Break_TypeCheck) {
-  FunctionSig* sigarray[] = {sigs.i_i(), sigs.l_l(), sigs.f_ff(), sigs.d_dd()};
-  for (size_t i = 0; i < arraysize(sigarray); i++) {
-    FunctionSig* sig = sigarray[i];
-    // unify X and X => OK
-    byte code[] = {WASM_BLOCK_T(
-        sig->GetReturn(), WASM_IF(WASM_ZERO, WASM_BRV(0, WASM_GET_LOCAL(0))),
-        WASM_GET_LOCAL(0))};
-    EXPECT_VERIFIES_SC(sig, code);
-  }
-
-  // unify i32 and f32 => fail
-  EXPECT_FAILURE(i_i, WASM_BLOCK_I(WASM_IF(WASM_ZERO, WASM_BRV(0, WASM_ZERO)),
-                                   WASM_F32(1.2)));
-
-  // unify f64 and f64 => OK
-  EXPECT_VERIFIES(
-      d_dd, WASM_BLOCK_D(WASM_IF(WASM_ZERO, WASM_BRV(0, WASM_GET_LOCAL(0))),
-                         WASM_F64(1.2)));
-}
-
-TEST_F(AstDecoderTest, Break_TypeCheckAll1) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType storage[] = {kLocalTypes[i], kLocalTypes[i], kLocalTypes[j]};
-      FunctionSig sig(1, 2, storage);
-      byte code[] = {WASM_BLOCK_T(
-          sig.GetReturn(), WASM_IF(WASM_ZERO, WASM_BRV(0, WASM_GET_LOCAL(0))),
-          WASM_GET_LOCAL(1))};
-
-      if (i == j) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Break_TypeCheckAll2) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType storage[] = {kLocalTypes[i], kLocalTypes[i], kLocalTypes[j]};
-      FunctionSig sig(1, 2, storage);
-      byte code[] = {WASM_IF_ELSE_T(sig.GetReturn(0), WASM_ZERO,
-                                    WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0)),
-                                    WASM_GET_LOCAL(1))};
-
-      if (i == j) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Break_TypeCheckAll3) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType storage[] = {kLocalTypes[i], kLocalTypes[i], kLocalTypes[j]};
-      FunctionSig sig(1, 2, storage);
-      byte code[] = {WASM_IF_ELSE_T(sig.GetReturn(), WASM_ZERO,
-                                    WASM_GET_LOCAL(1),
-                                    WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0)))};
-
-      if (i == j) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Break_Unify) {
-  for (int which = 0; which < 2; which++) {
-    for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-      LocalType type = kLocalTypes[i];
-      LocalType storage[] = {kAstI32, kAstI32, type};
-      FunctionSig sig(1, 2, storage);
-
-      byte code1[] = {WASM_BLOCK_T(
-          type, WASM_IF(WASM_ZERO, WASM_BRV(1, WASM_GET_LOCAL(which))),
-          WASM_GET_LOCAL(which ^ 1))};
-
-      if (type == kAstI32) {
-        EXPECT_VERIFIES_SC(&sig, code1);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code1);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakIf_cond_type) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType types[] = {kLocalTypes[i], kLocalTypes[i], kLocalTypes[j]};
-      FunctionSig sig(1, 2, types);
-      byte code[] = {WASM_BLOCK_T(
-          types[0], WASM_BRV_IF(0, WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)))};
-
-      if (types[2] == kAstI32) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakIf_val_type) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    for (size_t j = 0; j < arraysize(kLocalTypes); j++) {
-      LocalType types[] = {kLocalTypes[i], kLocalTypes[i], kLocalTypes[j],
-                           kAstI32};
-      FunctionSig sig(1, 3, types);
-      byte code[] = {WASM_BLOCK_T(
-          types[1], WASM_BRV_IF(0, WASM_GET_LOCAL(1), WASM_GET_LOCAL(2)),
-          WASM_DROP, WASM_GET_LOCAL(0))};
-
-      if (i == j) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BreakIf_Unify) {
-  for (int which = 0; which < 2; which++) {
-    for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-      LocalType type = kLocalTypes[i];
-      LocalType storage[] = {kAstI32, kAstI32, type};
-      FunctionSig sig(1, 2, storage);
-      byte code[] = {WASM_BLOCK_I(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(which)),
-                                  WASM_DROP, WASM_GET_LOCAL(which ^ 1))};
-
-      if (type == kAstI32) {
-        EXPECT_VERIFIES_SC(&sig, code);
-      } else {
-        EXPECT_FAILURE_SC(&sig, code);
-      }
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BrTable0) {
-  static byte code[] = {kExprBrTable, 0, BR_TARGET(0)};
-  EXPECT_FAILURE_C(v_v, code);
-}
-
-TEST_F(AstDecoderTest, BrTable0b) {
-  static byte code[] = {kExprI32Const, 11, kExprBrTable, 0, BR_TARGET(0)};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, BrTable0c) {
-  static byte code[] = {kExprI32Const, 11, kExprBrTable, 0, BR_TARGET(1)};
-  EXPECT_FAILURE_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-}
-
-TEST_F(AstDecoderTest, BrTable1a) {
-  static byte code[] = {B1(WASM_BR_TABLE(WASM_I8(67), 0, BR_TARGET(0)))};
-  EXPECT_VERIFIES_C(v_v, code);
-}
-
-TEST_F(AstDecoderTest, BrTable1b) {
-  static byte code[] = {B1(WASM_BR_TABLE(WASM_ZERO, 0, BR_TARGET(0)))};
-  EXPECT_VERIFIES_C(v_v, code);
-  EXPECT_FAILURE_C(i_i, code);
-  EXPECT_FAILURE_C(f_ff, code);
-  EXPECT_FAILURE_C(d_dd, code);
-}
-
-TEST_F(AstDecoderTest, BrTable2a) {
-  static byte code[] = {
-      B1(WASM_BR_TABLE(WASM_I8(67), 1, BR_TARGET(0), BR_TARGET(0)))};
-  EXPECT_VERIFIES_C(v_v, code);
-}
-
-TEST_F(AstDecoderTest, BrTable2b) {
-  static byte code[] = {WASM_BLOCK(
-      WASM_BLOCK(WASM_BR_TABLE(WASM_I8(67), 1, BR_TARGET(0), BR_TARGET(1))))};
-  EXPECT_VERIFIES_C(v_v, code);
-}
-
-TEST_F(AstDecoderTest, BrTable_off_end) {
-  static byte code[] = {B1(WASM_BR_TABLE(WASM_GET_LOCAL(0), 0, BR_TARGET(0)))};
-  for (size_t len = 1; len < sizeof(code); len++) {
-    Verify(kError, sigs.i_i(), code, code + len);
-  }
-}
-
-TEST_F(AstDecoderTest, BrTable_invalid_br1) {
-  for (int depth = 0; depth < 4; depth++) {
-    byte code[] = {B1(WASM_BR_TABLE(WASM_GET_LOCAL(0), 0, BR_TARGET(depth)))};
-    if (depth <= 1) {
-      EXPECT_VERIFIES_C(v_i, code);
-    } else {
-      EXPECT_FAILURE_C(v_i, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, BrTable_invalid_br2) {
-  for (int depth = 0; depth < 7; depth++) {
-    byte code[] = {
-        WASM_LOOP(WASM_BR_TABLE(WASM_GET_LOCAL(0), 0, BR_TARGET(depth)))};
-    if (depth < 2) {
-      EXPECT_VERIFIES_C(v_i, code);
-    } else {
-      EXPECT_FAILURE_C(v_i, code);
-    }
-  }
-}
-
-TEST_F(AstDecoderTest, Brv1) {
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_BRV(0, WASM_ZERO)));
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_LOOP(WASM_BRV(2, WASM_ZERO))));
-}
-
-TEST_F(AstDecoderTest, Brv1_type) {
-  EXPECT_VERIFIES(i_ii, WASM_BLOCK_I(WASM_BRV(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(l_ll, WASM_BLOCK_L(WASM_BRV(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(f_ff, WASM_BLOCK_F(WASM_BRV(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(d_dd, WASM_BLOCK_D(WASM_BRV(0, WASM_GET_LOCAL(0))));
-}
-
-TEST_F(AstDecoderTest, Brv1_type_n) {
-  EXPECT_FAILURE(i_f, WASM_BLOCK_I(WASM_BRV(0, WASM_GET_LOCAL(0))));
-  EXPECT_FAILURE(i_d, WASM_BLOCK_I(WASM_BRV(0, WASM_GET_LOCAL(0))));
-}
-
-TEST_F(AstDecoderTest, BrvIf1) {
-  EXPECT_VERIFIES(i_v, WASM_BLOCK_I(WASM_BRV_IF_ZERO(0, WASM_ZERO)));
-}
-
-TEST_F(AstDecoderTest, BrvIf1_type) {
-  EXPECT_VERIFIES(i_i, WASM_BLOCK_I(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(l_l, WASM_BLOCK_L(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(f_ff, WASM_BLOCK_F(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-  EXPECT_VERIFIES(d_dd, WASM_BLOCK_D(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-}
-
-TEST_F(AstDecoderTest, BrvIf1_type_n) {
-  EXPECT_FAILURE(i_f, WASM_BLOCK_I(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-  EXPECT_FAILURE(i_d, WASM_BLOCK_I(WASM_BRV_IF_ZERO(0, WASM_GET_LOCAL(0))));
-}
-
-TEST_F(AstDecoderTest, Select) {
-  EXPECT_VERIFIES(i_i,
-                  WASM_SELECT(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0), WASM_ZERO));
-  EXPECT_VERIFIES(f_ff, WASM_SELECT(WASM_F32(0.0), WASM_F32(0.0), WASM_ZERO));
-  EXPECT_VERIFIES(d_dd, WASM_SELECT(WASM_F64(0.0), WASM_F64(0.0), WASM_ZERO));
-  EXPECT_VERIFIES(l_l, WASM_SELECT(WASM_I64V_1(0), WASM_I64V_1(0), WASM_ZERO));
-}
-
-TEST_F(AstDecoderTest, Select_fail1) {
-  EXPECT_FAILURE(
-      i_i, WASM_SELECT(WASM_F32(0.0), WASM_GET_LOCAL(0), WASM_GET_LOCAL(0)));
-  EXPECT_FAILURE(
-      i_i, WASM_SELECT(WASM_GET_LOCAL(0), WASM_F32(0.0), WASM_GET_LOCAL(0)));
-  EXPECT_FAILURE(
-      i_i, WASM_SELECT(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0), WASM_F32(0.0)));
-}
-
-TEST_F(AstDecoderTest, Select_fail2) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType type = kLocalTypes[i];
-    if (type == kAstI32) continue;
-
-    LocalType types[] = {type, kAstI32, type};
-    FunctionSig sig(1, 2, types);
-
-    EXPECT_VERIFIES_S(&sig, WASM_SELECT(WASM_GET_LOCAL(1), WASM_GET_LOCAL(1),
-                                        WASM_GET_LOCAL(0)));
-
-    EXPECT_FAILURE_S(&sig, WASM_SELECT(WASM_GET_LOCAL(1), WASM_GET_LOCAL(0),
-                                       WASM_GET_LOCAL(0)));
-
-    EXPECT_FAILURE_S(&sig, WASM_SELECT(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1),
-                                       WASM_GET_LOCAL(0)));
-
-    EXPECT_FAILURE_S(&sig, WASM_SELECT(WASM_GET_LOCAL(0), WASM_GET_LOCAL(0),
-                                       WASM_GET_LOCAL(1)));
-  }
-}
-
-TEST_F(AstDecoderTest, Select_TypeCheck) {
-  EXPECT_FAILURE(
-      i_i, WASM_SELECT(WASM_F32(9.9), WASM_GET_LOCAL(0), WASM_GET_LOCAL(0)));
-
-  EXPECT_FAILURE(
-      i_i, WASM_SELECT(WASM_GET_LOCAL(0), WASM_F64(0.25), WASM_GET_LOCAL(0)));
-
-  EXPECT_FAILURE(i_i,
-                 WASM_SELECT(WASM_F32(9.9), WASM_GET_LOCAL(0), WASM_I64V_1(0)));
-}
-
-TEST_F(AstDecoderTest, Throw) {
-  FLAG_wasm_eh_prototype = true;
-  EXPECT_VERIFIES(v_i, WASM_GET_LOCAL(0), kExprThrow);
-
-  EXPECT_FAILURE(i_d, WASM_GET_LOCAL(0), kExprThrow, WASM_I32V(0));
-  EXPECT_FAILURE(i_f, WASM_GET_LOCAL(0), kExprThrow, WASM_I32V(0));
-  EXPECT_FAILURE(l_l, WASM_GET_LOCAL(0), kExprThrow, WASM_I64V(0));
-}
-
-#define WASM_TRY_OP kExprTry, kLocalVoid
-
-#define WASM_CATCH(local) kExprCatch, static_cast<byte>(local)
-
-TEST_F(AstDecoderTest, TryCatch) {
-  FLAG_wasm_eh_prototype = true;
-  EXPECT_VERIFIES(v_i, WASM_TRY_OP, WASM_CATCH(0), kExprEnd);
-
-  // Missing catch.
-  EXPECT_FAILURE(v_v, WASM_TRY_OP, kExprEnd);
-
-  // Missing end.
-  EXPECT_FAILURE(v_i, WASM_TRY_OP, WASM_CATCH(0));
-
-  // Double catch.
-  EXPECT_FAILURE(v_i, WASM_TRY_OP, WASM_CATCH(0), WASM_CATCH(0), kExprEnd);
-}
-
-TEST_F(AstDecoderTest, MultiValBlock1) {
-  FLAG_wasm_mv_prototype = true;
-  EXPECT_VERIFIES(i_ii, WASM_BLOCK_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                                      WASM_GET_LOCAL(1)),
-                  kExprI32Add);
-}
-
-TEST_F(AstDecoderTest, MultiValBlock2) {
-  FLAG_wasm_mv_prototype = true;
-  EXPECT_VERIFIES(i_ii, WASM_BLOCK_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                                      WASM_GET_LOCAL(1)),
-                  WASM_I32_ADD(WASM_NOP, WASM_NOP));
-}
-
-TEST_F(AstDecoderTest, MultiValBlockBr1) {
-  FLAG_wasm_mv_prototype = true;
-  EXPECT_FAILURE(i_ii,
-                 WASM_BLOCK_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0), WASM_BR(0)),
-                 kExprI32Add);
-  EXPECT_VERIFIES(i_ii, WASM_BLOCK_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                                      WASM_GET_LOCAL(1), WASM_BR(0)),
-                  kExprI32Add);
-}
-
-TEST_F(AstDecoderTest, MultiValIf1) {
-  FLAG_wasm_mv_prototype = true;
-  EXPECT_FAILURE(
-      i_ii, WASM_IF_ELSE_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                            WASM_SEQ(WASM_GET_LOCAL(0)),
-                            WASM_SEQ(WASM_GET_LOCAL(1), WASM_GET_LOCAL(0))),
-      kExprI32Add);
-  EXPECT_FAILURE(i_ii,
-                 WASM_IF_ELSE_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                                 WASM_SEQ(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)),
-                                 WASM_SEQ(WASM_GET_LOCAL(1))),
-                 kExprI32Add);
-  EXPECT_VERIFIES(
-      i_ii, WASM_IF_ELSE_TT(kAstI32, kAstI32, WASM_GET_LOCAL(0),
-                            WASM_SEQ(WASM_GET_LOCAL(0), WASM_GET_LOCAL(1)),
-                            WASM_SEQ(WASM_GET_LOCAL(1), WASM_GET_LOCAL(0))),
-      kExprI32Add);
-}
-
-class BranchTableIteratorTest : public TestWithZone {
- public:
-  BranchTableIteratorTest() : TestWithZone() {}
-  void CheckBrTableSize(const byte* start, const byte* end) {
-    Decoder decoder(start, end);
-    BranchTableOperand operand(&decoder, start);
-    BranchTableIterator iterator(&decoder, operand);
-    EXPECT_EQ(end - start - 1u, iterator.length());
-    EXPECT_TRUE(decoder.ok());
-  }
-  void CheckBrTableError(const byte* start, const byte* end) {
-    Decoder decoder(start, end);
-    BranchTableOperand operand(&decoder, start);
-    BranchTableIterator iterator(&decoder, operand);
-    iterator.length();
-    EXPECT_FALSE(decoder.ok());
-  }
-};
-
-#define CHECK_BR_TABLE_LENGTH(...)                    \
-  {                                                   \
-    static byte code[] = {kExprBrTable, __VA_ARGS__}; \
-    CheckBrTableSize(code, code + sizeof(code));      \
-  }
-
-#define CHECK_BR_TABLE_ERROR(...)                     \
-  {                                                   \
-    static byte code[] = {kExprBrTable, __VA_ARGS__}; \
-    CheckBrTableError(code, code + sizeof(code));     \
-  }
-
-TEST_F(BranchTableIteratorTest, count0) {
-  CHECK_BR_TABLE_LENGTH(0, U32V_1(1));
-  CHECK_BR_TABLE_LENGTH(0, U32V_2(200));
-  CHECK_BR_TABLE_LENGTH(0, U32V_3(30000));
-  CHECK_BR_TABLE_LENGTH(0, U32V_4(400000));
-
-  CHECK_BR_TABLE_LENGTH(0, U32V_1(2));
-  CHECK_BR_TABLE_LENGTH(0, U32V_2(300));
-  CHECK_BR_TABLE_LENGTH(0, U32V_3(40000));
-  CHECK_BR_TABLE_LENGTH(0, U32V_4(500000));
-}
-
-TEST_F(BranchTableIteratorTest, count1) {
-  CHECK_BR_TABLE_LENGTH(1, U32V_1(1), U32V_1(6));
-  CHECK_BR_TABLE_LENGTH(1, U32V_2(200), U32V_1(8));
-  CHECK_BR_TABLE_LENGTH(1, U32V_3(30000), U32V_1(9));
-  CHECK_BR_TABLE_LENGTH(1, U32V_4(400000), U32V_1(11));
-
-  CHECK_BR_TABLE_LENGTH(1, U32V_1(2), U32V_2(6));
-  CHECK_BR_TABLE_LENGTH(1, U32V_2(300), U32V_2(7));
-  CHECK_BR_TABLE_LENGTH(1, U32V_3(40000), U32V_2(8));
-  CHECK_BR_TABLE_LENGTH(1, U32V_4(500000), U32V_2(9));
-}
-
-TEST_F(BranchTableIteratorTest, error0) {
-  CHECK_BR_TABLE_ERROR(0);
-  CHECK_BR_TABLE_ERROR(1, U32V_1(33));
-}
-
-class WasmOpcodeLengthTest : public TestWithZone {
- public:
-  WasmOpcodeLengthTest() : TestWithZone() {}
-};
-
-#define EXPECT_LENGTH(expected, opcode)                          \
-  {                                                              \
-    static const byte code[] = {opcode, 0, 0, 0, 0, 0, 0, 0, 0}; \
-    EXPECT_EQ(static_cast<unsigned>(expected),                   \
-              OpcodeLength(code, code + sizeof(code)));          \
-  }
-
-#define EXPECT_LENGTH_N(expected, ...)                  \
-  {                                                     \
-    static const byte code[] = {__VA_ARGS__};           \
-    EXPECT_EQ(static_cast<unsigned>(expected),          \
-              OpcodeLength(code, code + sizeof(code))); \
-  }
-
-TEST_F(WasmOpcodeLengthTest, Statements) {
-  EXPECT_LENGTH(1, kExprNop);
-  EXPECT_LENGTH(2, kExprBlock);
-  EXPECT_LENGTH(2, kExprLoop);
-  EXPECT_LENGTH(2, kExprIf);
-  EXPECT_LENGTH(1, kExprElse);
-  EXPECT_LENGTH(1, kExprEnd);
-  EXPECT_LENGTH(1, kExprSelect);
-  EXPECT_LENGTH(2, kExprBr);
-  EXPECT_LENGTH(2, kExprBrIf);
-  EXPECT_LENGTH(1, kExprThrow);
-  EXPECT_LENGTH(2, kExprTry);
-  EXPECT_LENGTH(2, kExprCatch);
-}
-
-TEST_F(WasmOpcodeLengthTest, MiscExpressions) {
-  EXPECT_LENGTH(2, kExprI8Const);
-  EXPECT_LENGTH(5, kExprF32Const);
-  EXPECT_LENGTH(9, kExprF64Const);
-  EXPECT_LENGTH(2, kExprGetLocal);
-  EXPECT_LENGTH(2, kExprSetLocal);
-  EXPECT_LENGTH(2, kExprGetGlobal);
-  EXPECT_LENGTH(2, kExprSetGlobal);
-  EXPECT_LENGTH(2, kExprCallFunction);
-  EXPECT_LENGTH(3, kExprCallIndirect);
-}
-
-TEST_F(WasmOpcodeLengthTest, I32Const) {
-  EXPECT_LENGTH_N(2, kExprI32Const, U32V_1(1));
-  EXPECT_LENGTH_N(3, kExprI32Const, U32V_2(999));
-  EXPECT_LENGTH_N(4, kExprI32Const, U32V_3(9999));
-  EXPECT_LENGTH_N(5, kExprI32Const, U32V_4(999999));
-  EXPECT_LENGTH_N(6, kExprI32Const, U32V_5(99999999));
-}
-
-TEST_F(WasmOpcodeLengthTest, I64Const) {
-  EXPECT_LENGTH_N(2, kExprI64Const, U32V_1(1));
-  EXPECT_LENGTH_N(3, kExprI64Const, U32V_2(99));
-  EXPECT_LENGTH_N(4, kExprI64Const, U32V_3(9999));
-  EXPECT_LENGTH_N(5, kExprI64Const, U32V_4(99999));
-  EXPECT_LENGTH_N(6, kExprI64Const, U32V_5(9999999));
-  EXPECT_LENGTH_N(7, WASM_I64V_6(777777));
-  EXPECT_LENGTH_N(8, WASM_I64V_7(7777777));
-  EXPECT_LENGTH_N(9, WASM_I64V_8(77777777));
-  EXPECT_LENGTH_N(10, WASM_I64V_9(777777777));
-}
-
-TEST_F(WasmOpcodeLengthTest, VariableLength) {
-  EXPECT_LENGTH_N(2, kExprGetGlobal, U32V_1(1));
-  EXPECT_LENGTH_N(3, kExprGetGlobal, U32V_2(33));
-  EXPECT_LENGTH_N(4, kExprGetGlobal, U32V_3(44));
-  EXPECT_LENGTH_N(5, kExprGetGlobal, U32V_4(66));
-  EXPECT_LENGTH_N(6, kExprGetGlobal, U32V_5(77));
-}
-
-TEST_F(WasmOpcodeLengthTest, LoadsAndStores) {
-  EXPECT_LENGTH(3, kExprI32LoadMem8S);
-  EXPECT_LENGTH(3, kExprI32LoadMem8U);
-  EXPECT_LENGTH(3, kExprI32LoadMem16S);
-  EXPECT_LENGTH(3, kExprI32LoadMem16U);
-  EXPECT_LENGTH(3, kExprI32LoadMem);
-  EXPECT_LENGTH(3, kExprI64LoadMem8S);
-  EXPECT_LENGTH(3, kExprI64LoadMem8U);
-  EXPECT_LENGTH(3, kExprI64LoadMem16S);
-  EXPECT_LENGTH(3, kExprI64LoadMem16U);
-  EXPECT_LENGTH(3, kExprI64LoadMem32S);
-  EXPECT_LENGTH(3, kExprI64LoadMem32U);
-  EXPECT_LENGTH(3, kExprI64LoadMem);
-  EXPECT_LENGTH(3, kExprF32LoadMem);
-  EXPECT_LENGTH(3, kExprF64LoadMem);
-
-  EXPECT_LENGTH(3, kExprI32StoreMem8);
-  EXPECT_LENGTH(3, kExprI32StoreMem16);
-  EXPECT_LENGTH(3, kExprI32StoreMem);
-  EXPECT_LENGTH(3, kExprI64StoreMem8);
-  EXPECT_LENGTH(3, kExprI64StoreMem16);
-  EXPECT_LENGTH(3, kExprI64StoreMem32);
-  EXPECT_LENGTH(3, kExprI64StoreMem);
-  EXPECT_LENGTH(3, kExprF32StoreMem);
-  EXPECT_LENGTH(3, kExprF64StoreMem);
-}
-
-TEST_F(WasmOpcodeLengthTest, MiscMemExpressions) {
-  EXPECT_LENGTH(2, kExprMemorySize);
-  EXPECT_LENGTH(2, kExprGrowMemory);
-}
-
-TEST_F(WasmOpcodeLengthTest, SimpleExpressions) {
-  EXPECT_LENGTH(1, kExprI32Add);
-  EXPECT_LENGTH(1, kExprI32Sub);
-  EXPECT_LENGTH(1, kExprI32Mul);
-  EXPECT_LENGTH(1, kExprI32DivS);
-  EXPECT_LENGTH(1, kExprI32DivU);
-  EXPECT_LENGTH(1, kExprI32RemS);
-  EXPECT_LENGTH(1, kExprI32RemU);
-  EXPECT_LENGTH(1, kExprI32And);
-  EXPECT_LENGTH(1, kExprI32Ior);
-  EXPECT_LENGTH(1, kExprI32Xor);
-  EXPECT_LENGTH(1, kExprI32Shl);
-  EXPECT_LENGTH(1, kExprI32ShrU);
-  EXPECT_LENGTH(1, kExprI32ShrS);
-  EXPECT_LENGTH(1, kExprI32Eq);
-  EXPECT_LENGTH(1, kExprI32Ne);
-  EXPECT_LENGTH(1, kExprI32LtS);
-  EXPECT_LENGTH(1, kExprI32LeS);
-  EXPECT_LENGTH(1, kExprI32LtU);
-  EXPECT_LENGTH(1, kExprI32LeU);
-  EXPECT_LENGTH(1, kExprI32GtS);
-  EXPECT_LENGTH(1, kExprI32GeS);
-  EXPECT_LENGTH(1, kExprI32GtU);
-  EXPECT_LENGTH(1, kExprI32GeU);
-  EXPECT_LENGTH(1, kExprI32Clz);
-  EXPECT_LENGTH(1, kExprI32Ctz);
-  EXPECT_LENGTH(1, kExprI32Popcnt);
-  EXPECT_LENGTH(1, kExprI32Eqz);
-  EXPECT_LENGTH(1, kExprI64Add);
-  EXPECT_LENGTH(1, kExprI64Sub);
-  EXPECT_LENGTH(1, kExprI64Mul);
-  EXPECT_LENGTH(1, kExprI64DivS);
-  EXPECT_LENGTH(1, kExprI64DivU);
-  EXPECT_LENGTH(1, kExprI64RemS);
-  EXPECT_LENGTH(1, kExprI64RemU);
-  EXPECT_LENGTH(1, kExprI64And);
-  EXPECT_LENGTH(1, kExprI64Ior);
-  EXPECT_LENGTH(1, kExprI64Xor);
-  EXPECT_LENGTH(1, kExprI64Shl);
-  EXPECT_LENGTH(1, kExprI64ShrU);
-  EXPECT_LENGTH(1, kExprI64ShrS);
-  EXPECT_LENGTH(1, kExprI64Eq);
-  EXPECT_LENGTH(1, kExprI64Ne);
-  EXPECT_LENGTH(1, kExprI64LtS);
-  EXPECT_LENGTH(1, kExprI64LeS);
-  EXPECT_LENGTH(1, kExprI64LtU);
-  EXPECT_LENGTH(1, kExprI64LeU);
-  EXPECT_LENGTH(1, kExprI64GtS);
-  EXPECT_LENGTH(1, kExprI64GeS);
-  EXPECT_LENGTH(1, kExprI64GtU);
-  EXPECT_LENGTH(1, kExprI64GeU);
-  EXPECT_LENGTH(1, kExprI64Clz);
-  EXPECT_LENGTH(1, kExprI64Ctz);
-  EXPECT_LENGTH(1, kExprI64Popcnt);
-  EXPECT_LENGTH(1, kExprF32Add);
-  EXPECT_LENGTH(1, kExprF32Sub);
-  EXPECT_LENGTH(1, kExprF32Mul);
-  EXPECT_LENGTH(1, kExprF32Div);
-  EXPECT_LENGTH(1, kExprF32Min);
-  EXPECT_LENGTH(1, kExprF32Max);
-  EXPECT_LENGTH(1, kExprF32Abs);
-  EXPECT_LENGTH(1, kExprF32Neg);
-  EXPECT_LENGTH(1, kExprF32CopySign);
-  EXPECT_LENGTH(1, kExprF32Ceil);
-  EXPECT_LENGTH(1, kExprF32Floor);
-  EXPECT_LENGTH(1, kExprF32Trunc);
-  EXPECT_LENGTH(1, kExprF32NearestInt);
-  EXPECT_LENGTH(1, kExprF32Sqrt);
-  EXPECT_LENGTH(1, kExprF32Eq);
-  EXPECT_LENGTH(1, kExprF32Ne);
-  EXPECT_LENGTH(1, kExprF32Lt);
-  EXPECT_LENGTH(1, kExprF32Le);
-  EXPECT_LENGTH(1, kExprF32Gt);
-  EXPECT_LENGTH(1, kExprF32Ge);
-  EXPECT_LENGTH(1, kExprF64Add);
-  EXPECT_LENGTH(1, kExprF64Sub);
-  EXPECT_LENGTH(1, kExprF64Mul);
-  EXPECT_LENGTH(1, kExprF64Div);
-  EXPECT_LENGTH(1, kExprF64Min);
-  EXPECT_LENGTH(1, kExprF64Max);
-  EXPECT_LENGTH(1, kExprF64Abs);
-  EXPECT_LENGTH(1, kExprF64Neg);
-  EXPECT_LENGTH(1, kExprF64CopySign);
-  EXPECT_LENGTH(1, kExprF64Ceil);
-  EXPECT_LENGTH(1, kExprF64Floor);
-  EXPECT_LENGTH(1, kExprF64Trunc);
-  EXPECT_LENGTH(1, kExprF64NearestInt);
-  EXPECT_LENGTH(1, kExprF64Sqrt);
-  EXPECT_LENGTH(1, kExprF64Eq);
-  EXPECT_LENGTH(1, kExprF64Ne);
-  EXPECT_LENGTH(1, kExprF64Lt);
-  EXPECT_LENGTH(1, kExprF64Le);
-  EXPECT_LENGTH(1, kExprF64Gt);
-  EXPECT_LENGTH(1, kExprF64Ge);
-  EXPECT_LENGTH(1, kExprI32SConvertF32);
-  EXPECT_LENGTH(1, kExprI32SConvertF64);
-  EXPECT_LENGTH(1, kExprI32UConvertF32);
-  EXPECT_LENGTH(1, kExprI32UConvertF64);
-  EXPECT_LENGTH(1, kExprI32ConvertI64);
-  EXPECT_LENGTH(1, kExprI64SConvertF32);
-  EXPECT_LENGTH(1, kExprI64SConvertF64);
-  EXPECT_LENGTH(1, kExprI64UConvertF32);
-  EXPECT_LENGTH(1, kExprI64UConvertF64);
-  EXPECT_LENGTH(1, kExprI64SConvertI32);
-  EXPECT_LENGTH(1, kExprI64UConvertI32);
-  EXPECT_LENGTH(1, kExprF32SConvertI32);
-  EXPECT_LENGTH(1, kExprF32UConvertI32);
-  EXPECT_LENGTH(1, kExprF32SConvertI64);
-  EXPECT_LENGTH(1, kExprF32UConvertI64);
-  EXPECT_LENGTH(1, kExprF32ConvertF64);
-  EXPECT_LENGTH(1, kExprF32ReinterpretI32);
-  EXPECT_LENGTH(1, kExprF64SConvertI32);
-  EXPECT_LENGTH(1, kExprF64UConvertI32);
-  EXPECT_LENGTH(1, kExprF64SConvertI64);
-  EXPECT_LENGTH(1, kExprF64UConvertI64);
-  EXPECT_LENGTH(1, kExprF64ConvertF32);
-  EXPECT_LENGTH(1, kExprF64ReinterpretI64);
-  EXPECT_LENGTH(1, kExprI32ReinterpretF32);
-  EXPECT_LENGTH(1, kExprI64ReinterpretF64);
-}
-
-TEST_F(WasmOpcodeLengthTest, SimdExpressions) {
-#define TEST_SIMD(name, opcode, sig) \
-  EXPECT_LENGTH_N(2, kSimdPrefix, static_cast<byte>(kExpr##name & 0xff));
-  FOREACH_SIMD_0_OPERAND_OPCODE(TEST_SIMD)
-#undef TEST_SIMD
-#define TEST_SIMD(name, opcode, sig) \
-  EXPECT_LENGTH_N(3, kSimdPrefix, static_cast<byte>(kExpr##name & 0xff));
-  FOREACH_SIMD_1_OPERAND_OPCODE(TEST_SIMD)
-#undef TEST_SIMD
-  // test for bad simd opcode
-  EXPECT_LENGTH_N(2, kSimdPrefix, 0xff);
-}
-
-typedef ZoneVector<LocalType> LocalTypeMap;
-
-class LocalDeclDecoderTest : public TestWithZone {
- public:
-  v8::internal::AccountingAllocator allocator;
-
-  size_t ExpectRun(LocalTypeMap map, size_t pos, LocalType expected,
-                   size_t count) {
-    for (size_t i = 0; i < count; i++) {
-      EXPECT_EQ(expected, map[pos++]);
-    }
-    return pos;
-  }
-
-  LocalTypeMap Expand(AstLocalDecls& decls) {
-    ZoneVector<LocalType> map(zone());
-    for (auto p : decls.local_types) {
-      map.insert(map.end(), p.second, p.first);
-    }
-    return map;
-  }
-};
-
-TEST_F(LocalDeclDecoderTest, EmptyLocals) {
-  AstLocalDecls decls(zone());
-  bool result = DecodeLocalDecls(decls, nullptr, nullptr);
-  EXPECT_FALSE(result);
-}
-
-TEST_F(LocalDeclDecoderTest, NoLocals) {
-  static const byte data[] = {0};
-  AstLocalDecls decls(zone());
-  bool result = DecodeLocalDecls(decls, data, data + sizeof(data));
-  EXPECT_TRUE(result);
-  EXPECT_EQ(0u, decls.total_local_count);
-}
-
-TEST_F(LocalDeclDecoderTest, OneLocal) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType type = kLocalTypes[i];
-    const byte data[] = {
-        1, 1, static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(type))};
-    AstLocalDecls decls(zone());
-    bool result = DecodeLocalDecls(decls, data, data + sizeof(data));
-    EXPECT_TRUE(result);
-    EXPECT_EQ(1u, decls.total_local_count);
-
-    LocalTypeMap map = Expand(decls);
-    EXPECT_EQ(1u, map.size());
-    EXPECT_EQ(type, map[0]);
-  }
-}
-
-TEST_F(LocalDeclDecoderTest, FiveLocals) {
-  for (size_t i = 0; i < arraysize(kLocalTypes); i++) {
-    LocalType type = kLocalTypes[i];
-    const byte data[] = {
-        1, 5, static_cast<byte>(WasmOpcodes::LocalTypeCodeFor(type))};
-    AstLocalDecls decls(zone());
-    bool result = DecodeLocalDecls(decls, data, data + sizeof(data));
-    EXPECT_TRUE(result);
-    EXPECT_EQ(sizeof(data), decls.decls_encoded_size);
-    EXPECT_EQ(5u, decls.total_local_count);
-
-    LocalTypeMap map = Expand(decls);
-    EXPECT_EQ(5u, map.size());
-    ExpectRun(map, 0, type, 5);
-  }
-}
-
-TEST_F(LocalDeclDecoderTest, MixedLocals) {
-  for (byte a = 0; a < 3; a++) {
-    for (byte b = 0; b < 3; b++) {
-      for (byte c = 0; c < 3; c++) {
-        for (byte d = 0; d < 3; d++) {
-          const byte data[] = {4, a,         kLocalI32, b,        kLocalI64,
-                               c, kLocalF32, d,         kLocalF64};
-          AstLocalDecls decls(zone());
-          bool result = DecodeLocalDecls(decls, data, data + sizeof(data));
-          EXPECT_TRUE(result);
-          EXPECT_EQ(sizeof(data), decls.decls_encoded_size);
-          EXPECT_EQ(static_cast<uint32_t>(a + b + c + d),
-                    decls.total_local_count);
-
-          LocalTypeMap map = Expand(decls);
-          EXPECT_EQ(static_cast<uint32_t>(a + b + c + d), map.size());
-
-          size_t pos = 0;
-          pos = ExpectRun(map, pos, kAstI32, a);
-          pos = ExpectRun(map, pos, kAstI64, b);
-          pos = ExpectRun(map, pos, kAstF32, c);
-          pos = ExpectRun(map, pos, kAstF64, d);
-        }
-      }
-    }
-  }
-}
-
-TEST_F(LocalDeclDecoderTest, UseEncoder) {
-  const byte* data = nullptr;
-  const byte* end = nullptr;
-  LocalDeclEncoder local_decls(zone());
-
-  local_decls.AddLocals(5, kAstF32);
-  local_decls.AddLocals(1337, kAstI32);
-  local_decls.AddLocals(212, kAstI64);
-  local_decls.Prepend(zone(), &data, &end);
-
-  AstLocalDecls decls(zone());
-  bool result = DecodeLocalDecls(decls, data, end);
-  EXPECT_TRUE(result);
-  EXPECT_EQ(5u + 1337u + 212u, decls.total_local_count);
-
-  LocalTypeMap map = Expand(decls);
-  size_t pos = 0;
-  pos = ExpectRun(map, pos, kAstF32, 5);
-  pos = ExpectRun(map, pos, kAstI32, 1337);
-  pos = ExpectRun(map, pos, kAstI64, 212);
-}
-
-class BytecodeIteratorTest : public TestWithZone {};
-
-TEST_F(BytecodeIteratorTest, SimpleForeach) {
-  byte code[] = {WASM_IF_ELSE(WASM_ZERO, WASM_ZERO, WASM_ZERO)};
-  BytecodeIterator iter(code, code + sizeof(code));
-  WasmOpcode expected[] = {kExprI8Const, kExprIf,      kExprI8Const,
-                           kExprElse,    kExprI8Const, kExprEnd};
-  size_t pos = 0;
-  for (WasmOpcode opcode : iter.opcodes()) {
-    if (pos >= arraysize(expected)) {
-      EXPECT_TRUE(false);
-      break;
-    }
-    EXPECT_EQ(expected[pos++], opcode);
-  }
-  EXPECT_EQ(arraysize(expected), pos);
-}
-
-TEST_F(BytecodeIteratorTest, ForeachTwice) {
-  byte code[] = {WASM_IF_ELSE(WASM_ZERO, WASM_ZERO, WASM_ZERO)};
-  BytecodeIterator iter(code, code + sizeof(code));
-  int count = 0;
-
-  count = 0;
-  for (WasmOpcode opcode : iter.opcodes()) {
-    USE(opcode);
-    count++;
-  }
-  EXPECT_EQ(6, count);
-
-  count = 0;
-  for (WasmOpcode opcode : iter.opcodes()) {
-    USE(opcode);
-    count++;
-  }
-  EXPECT_EQ(6, count);
-}
-
-TEST_F(BytecodeIteratorTest, ForeachOffset) {
-  byte code[] = {WASM_IF_ELSE(WASM_ZERO, WASM_ZERO, WASM_ZERO)};
-  BytecodeIterator iter(code, code + sizeof(code));
-  int count = 0;
-
-  count = 0;
-  for (auto offset : iter.offsets()) {
-    USE(offset);
-    count++;
-  }
-  EXPECT_EQ(6, count);
-
-  count = 0;
-  for (auto offset : iter.offsets()) {
-    USE(offset);
-    count++;
-  }
-  EXPECT_EQ(6, count);
-}
-
-TEST_F(BytecodeIteratorTest, WithAstDecls) {
-  byte code[] = {1, 1, kLocalI32, WASM_I8(9), WASM_I8(11)};
-  AstLocalDecls decls(zone());
-  BytecodeIterator iter(code, code + sizeof(code), &decls);
-
-  EXPECT_EQ(3u, decls.decls_encoded_size);
-  EXPECT_EQ(3u, iter.pc_offset());
-  EXPECT_TRUE(iter.has_next());
-  EXPECT_EQ(kExprI8Const, iter.current());
-  iter.next();
-  EXPECT_TRUE(iter.has_next());
-  EXPECT_EQ(kExprI8Const, iter.current());
-  iter.next();
-  EXPECT_FALSE(iter.has_next());
-}
-
-}  // namespace wasm
-}  // namespace internal
-}  // namespace v8