MIPS: Fix dd() implementations for compact branches.

src/mips64/assembler-mips64.cc

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // All Rights Reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 // - Redistributions of source code must retain the above copyright notice,
 // this list of conditions and the following disclaimer.
 //
@@ skipping 3157 matching lines @@
     if (rmode == RelocInfo::INTERNAL_REFERENCE) {
       byte* p = reinterpret_cast<byte*>(it.rinfo()->pc());
       RelocateInternalReference(rmode, p, pc_delta);
     }
   }
   DCHECK(!overflow());
 }
 
 
 void Assembler::db(uint8_t data) {
-  CheckBuffer();
-  *reinterpret_cast<uint8_t*>(pc_) = data;
-  pc_ += sizeof(uint8_t);
+  CheckForEmitInForbiddenSlot();
+  EmitHelper(data);
 }
 
 
 void Assembler::dd(uint32_t data) {
-  CheckBuffer();
-  *reinterpret_cast<uint32_t*>(pc_) = data;
-  pc_ += sizeof(uint32_t);
+  CheckForEmitInForbiddenSlot();
+  EmitHelper(data);
 }
 
 
 void Assembler::dq(uint64_t data) {
-  CheckBuffer();
-  *reinterpret_cast<uint64_t*>(pc_) = data;
-  pc_ += sizeof(uint64_t);
+  CheckForEmitInForbiddenSlot();
+  EmitHelper(data);
 }
 
 
 void Assembler::dd(Label* label) {
-  CheckBuffer();
-  RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE);
   uint64_t data;
+  CheckForEmitInForbiddenSlot();
   if (label->is_bound()) {
     data = reinterpret_cast<uint64_t>(buffer_ + label->pos());
   } else {
     data = jump_address(label);
     internal_reference_positions_.insert(label->pos());
   }
-  *reinterpret_cast<uint64_t*>(pc_) = data;
-  pc_ += sizeof(uint64_t);
+  RecordRelocInfo(RelocInfo::INTERNAL_REFERENCE);
+  EmitHelper(data);
 }
 
 
-void Assembler::emit_code_stub_address(Code* stub) {
-  CheckBuffer();
-  *reinterpret_cast<uint64_t*>(pc_) =
-      reinterpret_cast<uint64_t>(stub->instruction_start());
-  pc_ += sizeof(uint64_t);
-}
-
-
 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
   // We do not try to reuse pool constants.
   RelocInfo rinfo(isolate(), pc_, rmode, data, NULL);
   if (rmode >= RelocInfo::COMMENT &&
       rmode <= RelocInfo::DEBUG_BREAK_SLOT_AT_CALL) {
     // Adjust code for new modes.
     DCHECK(RelocInfo::IsDebugBreakSlot(rmode)
            || RelocInfo::IsComment(rmode)
            || RelocInfo::IsPosition(rmode));
     // These modes do not need an entry in the constant pool.
@@ skipping 165 matching lines @@
   if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
     Assembler::FlushICache(isolate, pc, 4 * Assembler::kInstrSize);
   }
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_TARGET_ARCH_MIPS64