[wasm] Add I64Eqz operator.

test/unittests/wasm/wasm-macro-gen-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/wasm/wasm-macro-gen.h"
 
 namespace v8 {
 namespace internal {
@@ skipping 167 matching lines @@
   EXPECT_SIZE(5, WASM_I32_LEU(WASM_ZERO, WASM_ZERO));
 
   EXPECT_SIZE(5, WASM_I32_GTS(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I32_GES(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I32_GTU(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I32_GEU(WASM_ZERO, WASM_ZERO));
 
   EXPECT_SIZE(3, WASM_I32_CLZ(WASM_ZERO));
   EXPECT_SIZE(3, WASM_I32_CTZ(WASM_ZERO));
   EXPECT_SIZE(3, WASM_I32_POPCNT(WASM_ZERO));
+
+  EXPECT_SIZE(3, WASM_I32_EQZ(WASM_ZERO));
 }
 
 
 TEST_F(WasmMacroGenTest, Int64Ops) {
   EXPECT_SIZE(5, WASM_I64_ADD(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_SUB(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_MUL(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_DIVS(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_DIVU(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_REMS(WASM_ZERO, WASM_ZERO));
@@ skipping 14 matching lines @@
   EXPECT_SIZE(5, WASM_I64_LEU(WASM_ZERO, WASM_ZERO));
 
   EXPECT_SIZE(5, WASM_I64_GTS(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_GES(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_GTU(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_I64_GEU(WASM_ZERO, WASM_ZERO));
 
   EXPECT_SIZE(3, WASM_I64_CLZ(WASM_ZERO));
   EXPECT_SIZE(3, WASM_I64_CTZ(WASM_ZERO));
   EXPECT_SIZE(3, WASM_I64_POPCNT(WASM_ZERO));
+
+  EXPECT_SIZE(3, WASM_I64_EQZ(WASM_ZERO));
 }
 
 
 TEST_F(WasmMacroGenTest, Float32Ops) {
   EXPECT_SIZE(5, WASM_F32_ADD(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_F32_SUB(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_F32_MUL(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_F32_DIV(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_F32_MIN(WASM_ZERO, WASM_ZERO));
   EXPECT_SIZE(5, WASM_F32_MAX(WASM_ZERO, WASM_ZERO));
@@ skipping 87 matching lines @@
     EXPECT_SIZE(5, WASM_LOAD_MEM_OFFSET(kMemTypes[i], 11, WASM_ZERO));
   }
   for (size_t i = 0; i < arraysize(kMemTypes); i++) {
     EXPECT_SIZE(7, WASM_STORE_MEM_OFFSET(kMemTypes[i], 13, WASM_ZERO,
                                          WASM_GET_LOCAL(0)));
   }
 }
 }  // namespace wasm
 }  // namespace internal
 }  // namespace v8