[compiler] Add relocatable pointer constants for wasm memory references.

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 1466 matching lines @@
   if (!RelocInfo::IsNone(rmode)) {
     RecordRelocInfo(rmode, value);
   }
   emitq(value);
 }
 
 void Assembler::movq(Register dst, uint64_t value, RelocInfo::Mode rmode) {
   movq(dst, static_cast<int64_t>(value), rmode);
 }
 
-
 // Loads the ip-relative location of the src label into the target location
 // (as a 32-bit offset sign extended to 64-bit).
 void Assembler::movl(const Operand& dst, Label* src) {
   EnsureSpace ensure_space(this);
   emit_optional_rex_32(dst);
   emit(0xC7);
   emit_operand(0, dst);
   if (src->is_bound()) {
     int offset = src->pos() - pc_offset() - sizeof(int32_t);
     DCHECK(offset <= 0);
@@ skipping 2697 matching lines @@
 
 bool RelocInfo::IsInConstantPool() {
   return false;
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_X64