Implement Wasm GrowMemory opcode as a wasm runtime call

src/x64/assembler-x64.cc

 // Copyright 2012 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 "src/x64/assembler-x64.h"
 
 #include <cstring>
 
 #if V8_TARGET_ARCH_X64
 
@@ skipping 116 matching lines @@
   return Memory::uint32_at(pc_);
 }
 
 void RelocInfo::update_wasm_memory_reference(
     Address old_base, Address new_base, uint32_t old_size, uint32_t new_size,
     ICacheFlushMode icache_flush_mode) {
   DCHECK(IsWasmMemoryReference(rmode_) || IsWasmMemorySizeReference(rmode_));
   if (IsWasmMemoryReference(rmode_)) {
     Address updated_reference;
     DCHECK(old_base <= wasm_memory_reference() &&
-           wasm_memory_reference() < old_base + old_size);
+           wasm_memory_reference() <= old_base + old_size);
     updated_reference = new_base + (wasm_memory_reference() - old_base);
     DCHECK(new_base <= updated_reference &&
            updated_reference < new_base + new_size);
     Memory::Address_at(pc_) = updated_reference;
   } else if (IsWasmMemorySizeReference(rmode_)) {
     uint32_t updated_size_reference;
     DCHECK(wasm_memory_size_reference() <= old_size);
     updated_size_reference =
         new_size + (wasm_memory_size_reference() - old_size);
     DCHECK(updated_size_reference <= new_size);
@@ skipping 444 matching lines @@
   }
 }
 
 
 void Assembler::immediate_arithmetic_op(byte subcode,
                                         Register dst,
                                         Immediate src,
                                         int size) {
   EnsureSpace ensure_space(this);
   emit_rex(dst, size);
-  if (is_int8(src.value_)) {
+  if (is_int8(src.value_) && RelocInfo::IsNone(src.rmode_)) {
     emit(0x83);
     emit_modrm(subcode, dst);
-    if (!RelocInfo::IsNone(src.rmode_)) {
-      RecordRelocInfo(src.rmode_);
-    }
     emit(src.value_);
   } else if (dst.is(rax)) {
     emit(0x05 | (subcode << 3));
     emit(src);
   } else {
     emit(0x81);
     emit_modrm(subcode, dst);
     emit(src);
   }
 }
@@ skipping 3979 matching lines @@
 
 bool RelocInfo::IsInConstantPool() {
   return false;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64