[wasm] Int64Lowering of I64XConvertI32.

test/cctest/wasm/test-run-wasm-64.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 <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/wasm-macro-gen.h"
 
@@ skipping 152 matching lines @@
 }
 // kExprI32ConvertI64:
 TEST(Run_WasmI32ConvertI64) {
   FOR_INT64_INPUTS(i) {
     WasmRunner<int32_t> r;
     BUILD(r, WASM_I32_CONVERT_I64(WASM_I64V(*i)));
     CHECK_EQ(static_cast<int32_t>(*i), r.Call());
   }
 }
 // kExprI64SConvertI32:
+TEST(Run_WasmI64SConvertI32) {
+  WasmRunner<int64_t> r(MachineType::Int32());
+  BUILD(r, WASM_I64_SCONVERT_I32(WASM_GET_LOCAL(0)));
+  FOR_INT32_INPUTS(i) { CHECK_EQ(static_cast<int64_t>(*i), r.Call(*i)); }
+}
+
 // kExprI64UConvertI32:
+TEST(Run_WasmI64UConvertI32) {
+  WasmRunner<int64_t> r(MachineType::Uint32());
+  BUILD(r, WASM_I64_UCONVERT_I32(WASM_GET_LOCAL(0)));
+  FOR_UINT32_INPUTS(i) { CHECK_EQ(static_cast<uint64_t>(*i), r.Call(*i)); }
+}
 
 // kExprF64ReinterpretI64:
 // kExprI64ReinterpretF64:
 
 // kExprI64Clz:
 // kExprI64Ctz:
 // kExprI64Popcnt:
 
 // kExprF32SConvertI64:
 // kExprF32UConvertI64:
@@ skipping 34 matching lines @@
             WASM_I64V_10(0xbcd1234000000013), WASM_I64V_10(0xbcd1234000000014),
             WASM_I64V_10(0xbcd1234000000015), WASM_I64V_10(0xbcd1234000000016),
             WASM_I64V_10(0xbcd1234000000017), WASM_I64V_10(0xbcd1234000000018),
             WASM_I64V_10(0xbcd1234000000019), WASM_I64V_10(0xbcd123400000001a),
             WASM_I64V_10(0xbcd123400000001b), WASM_I64V_10(0xbcd123400000001c),
             WASM_I64V_10(0xbcd123400000001d))));
 
     CHECK_EQ(i + 0xb, r.Call());
   }
 }