Populate relocation information correctly for RelocatableInt32Constants.

test/cctest/wasm/test-run-wasm-module.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 <stdlib.h>
 #include <string.h>
 
 #include "src/wasm/encoder.h"
 #include "src/wasm/module-decoder.h"
 #include "src/wasm/wasm-js.h"
@@ skipping 182 matching lines @@
 
   WasmFunctionBuilder* f = builder->FunctionAt(f_index);
   f->SetSignature(sigs.i_i());
   byte code[] = {WASM_GET_LOCAL(0), kExprI32Const, 1, kExprI32Add};
   f->EmitCode(code, sizeof(code));
   ExportAs(f, kFunctionName);
 
   ZoneBuffer buffer(&zone);
   builder->WriteTo(buffer);
 
-  Isolate* isolate = CcTest::InitIsolateOnce();
+  v8::Isolate::CreateParams create_params;
+  create_params.array_buffer_allocator =
+      CcTest::InitIsolateOnce()->array_buffer_allocator();
+
+  v8::Isolate* v8_isolate = v8::Isolate::New(create_params);
+  Isolate* isolate = reinterpret_cast<Isolate*>(v8_isolate);
+  v8::HandleScope new_scope(v8_isolate);
+  v8::Local<v8::Context> new_ctx = v8::Context::New(v8_isolate);
+  new_ctx->Enter();
+
   ErrorThrower thrower(isolate, "");
-
   v8::WasmCompiledModule::SerializedModule data;
   {
     HandleScope scope(isolate);
 
     ModuleResult decoding_result = DecodeWasmModule(
         isolate, &zone, buffer.begin(), buffer.end(), false, kWasmOrigin);
     std::unique_ptr<const WasmModule> module(decoding_result.val);
     CHECK(!decoding_result.failed());
 
     MaybeHandle<FixedArray> compiled_module =
         module->CompileFunctions(isolate, &thrower);
     CHECK(!compiled_module.is_null());
     Handle<JSObject> module_obj = CreateCompiledModuleObject(
         isolate, compiled_module.ToHandleChecked(), ModuleOrigin::kWasmOrigin);
     v8::Local<v8::Object> v8_module_obj = v8::Utils::ToLocal(module_obj);
     CHECK(v8_module_obj->IsWebAssemblyCompiledModule());
 
     v8::Local<v8::WasmCompiledModule> v8_compiled_module =
         v8_module_obj.As<v8::WasmCompiledModule>();
     data = v8_compiled_module->Serialize();
   }
 
-  v8::Isolate::CreateParams create_params;
   create_params.array_buffer_allocator = isolate->array_buffer_allocator();
 
-  v8::Isolate* v8_isolate = v8::Isolate::New(create_params);
   isolate = reinterpret_cast<Isolate*>(v8_isolate);
   {
     v8::Isolate::Scope isolate_scope(v8_isolate);
     v8::HandleScope new_scope(v8_isolate);
     v8::Local<v8::Context> new_ctx = v8::Context::New(v8_isolate);
     new_ctx->Enter();
 
     v8::MaybeLocal<v8::WasmCompiledModule> deserialized =
         v8::WasmCompiledModule::Deserialize(v8_isolate, data);
     v8::Local<v8::WasmCompiledModule> compiled_module;
     CHECK(deserialized.ToLocal(&compiled_module));
     Handle<JSObject> module_object =
         Handle<JSObject>::cast(v8::Utils::OpenHandle(*compiled_module));
     Handle<FixedArray> compiled_part =
         handle(FixedArray::cast(module_object->GetInternalField(0)));
     Handle<JSObject> instance =
         WasmModule::Instantiate(isolate, compiled_part,
                                 Handle<JSReceiver>::null(),
                                 Handle<JSArrayBuffer>::null())
             .ToHandleChecked();
     Handle<Object> params[1] = {Handle<Object>(Smi::FromInt(41), isolate)};
     int32_t result = testing::CallFunction(isolate, instance, &thrower,
                                            kFunctionName, 1, params);
     CHECK(result == 42);
     new_ctx->Exit();
   }
 }
 
+TEST(Run_WasmModule_MemSize_GrowMem) {
+  static const int kPageSize = 0x10000;
+  // Initial memory size = 16 + GrowMemory(10)
+  static const int kExpectedValue = kPageSize * 26;
+  TestSignatures sigs;
+  v8::base::AccountingAllocator allocator;
+  Zone zone(&allocator);
+
+  WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
+  uint16_t f_index = builder->AddFunction();
+  WasmFunctionBuilder* f = builder->FunctionAt(f_index);
+  f->SetSignature(sigs.i_v());
+  ExportAsMain(f);
+  byte code[] = {WASM_GROW_MEMORY(WASM_I8(10)), WASM_MEMORY_SIZE};
+  f->EmitCode(code, sizeof(code));
+  TestModule(&zone, builder, kExpectedValue);
+}
+
 TEST(Run_WasmModule_GrowMemoryInIf) {
   TestSignatures sigs;
   v8::base::AccountingAllocator allocator;
   Zone zone(&allocator);
   WasmModuleBuilder* builder = new (&zone) WasmModuleBuilder(&zone);
   uint16_t f_index = builder->AddFunction();
   WasmFunctionBuilder* f = builder->FunctionAt(f_index);
   f->SetSignature(sigs.i_v());
   ExportAsMain(f);
   byte code[] = {WASM_IF_ELSE(WASM_I32V(0), WASM_GROW_MEMORY(WASM_I32V(1)),
                               WASM_I32V(12))};
   f->EmitCode(code, sizeof(code));
   TestModule(&zone, builder, 12);
 }