[mips][Turboprop] Support HeapObject immediate deopt args.

Port: bbb1b345

Bug: v8:10582

Change-Id: I73cb737655bf68a79f0ae9a25adf9041693a1a8d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2614219Reviewed-by: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Commit-Queue: Zhao Jiazhong <zhaojiazhong-hf@loongson.cn>
Auto-Submit: Liu yu <liuyu@loongson.cn>
Cr-Commit-Position: refs/heads/master@{#71942}

src/codegen/mips/assembler-mips-inl.h

@@ -159,7 +159,11 @@ void Assembler::deserialization_set_target_internal_reference_at(
 }
 
 HeapObject RelocInfo::target_object() {
-  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_));
+  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_) ||
+         IsDataEmbeddedObject(rmode_));
+  if (IsDataEmbeddedObject(rmode_)) {
+    return HeapObject::cast(Object(ReadUnalignedValue<Address>(pc_)));
+  }
   return HeapObject::cast(
       Object(Assembler::target_address_at(pc_, constant_pool_)));
 }
@@ -172,6 +176,8 @@ Handle<HeapObject> RelocInfo::target_object_handle(Assembler* origin) {
   if (IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_)) {
     return Handle<HeapObject>(reinterpret_cast<Address*>(
         Assembler::target_address_at(pc_, constant_pool_)));
+  } else if (IsDataEmbeddedObject(rmode_)) {
+    return Handle<HeapObject>::cast(ReadUnalignedValue<Handle<Object>>(pc_));
   }
   DCHECK(IsRelativeCodeTarget(rmode_));
   return origin->relative_code_target_object_handle_at(pc_);
@@ -180,9 +186,15 @@ Handle<HeapObject> RelocInfo::target_object_handle(Assembler* origin) {
 void RelocInfo::set_target_object(Heap* heap, HeapObject target,
                                   WriteBarrierMode write_barrier_mode,
                                   ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_));
+  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_) ||
+         IsDataEmbeddedObject(rmode_));
+  if (IsDataEmbeddedObject(rmode_)) {
+    WriteUnalignedValue(pc_, target.ptr());
+    // No need to flush icache since no instructions were changed.
+  } else {
     Assembler::set_target_address_at(pc_, constant_pool_, target.ptr(),
                                      icache_flush_mode);
+  }
   if (write_barrier_mode == UPDATE_WRITE_BARRIER && !host().is_null() &&
       !FLAG_disable_write_barriers) {
     WriteBarrierForCode(host(), this, target);

src/codegen/mips/assembler-mips.cc

@@ -3582,14 +3582,22 @@ void Assembler::db(uint8_t data) {
   pc_ += sizeof(uint8_t);
 }
 
-void Assembler::dd(uint32_t data) {
+void Assembler::dd(uint32_t data, RelocInfo::Mode rmode) {
   CheckForEmitInForbiddenSlot();
+  if (!RelocInfo::IsNone(rmode)) {
+    DCHECK(RelocInfo::IsDataEmbeddedObject(rmode));
+    RecordRelocInfo(rmode);
+  }
   *reinterpret_cast<uint32_t*>(pc_) = data;
   pc_ += sizeof(uint32_t);
 }
 
-void Assembler::dq(uint64_t data) {
+void Assembler::dq(uint64_t data, RelocInfo::Mode rmode) {
   CheckForEmitInForbiddenSlot();
+  if (!RelocInfo::IsNone(rmode)) {
+    DCHECK(RelocInfo::IsDataEmbeddedObject(rmode));
+    RecordRelocInfo(rmode);
+  }
   *reinterpret_cast<uint64_t*>(pc_) = data;
   pc_ += sizeof(uint64_t);
 }

src/codegen/mips/assembler-mips.h

@@ -1416,9 +1416,11 @@ class V8_EXPORT_PRIVATE Assembler : public AssemblerBase {
   // Writes a single byte or word of data in the code stream.  Used for
   // inline tables, e.g., jump-tables.
   void db(uint8_t data);
-  void dd(uint32_t data);
-  void dq(uint64_t data);
-  void dp(uintptr_t data) { dd(data); }
+  void dd(uint32_t data, RelocInfo::Mode rmode = RelocInfo::NONE);
+  void dq(uint64_t data, RelocInfo::Mode rmode = RelocInfo::NONE);
+  void dp(uintptr_t data, RelocInfo::Mode rmode = RelocInfo::NONE) {
+    dd(data, rmode);
+  }
   void dd(Label* label);
 
   // Postpone the generation of the trampoline pool for the specified number of

src/codegen/mips64/assembler-mips64-inl.h

@@ -138,7 +138,11 @@ void Assembler::deserialization_set_target_internal_reference_at(
 }
 
 HeapObject RelocInfo::target_object() {
-  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_));
+  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_) ||
+         IsDataEmbeddedObject(rmode_));
+  if (IsDataEmbeddedObject(rmode_)) {
+    return HeapObject::cast(Object(ReadUnalignedValue<Address>(pc_)));
+  }
   return HeapObject::cast(
       Object(Assembler::target_address_at(pc_, constant_pool_)));
 }
@@ -148,17 +152,27 @@ HeapObject RelocInfo::target_object_no_host(Isolate* isolate) {
 }
 
 Handle<HeapObject> RelocInfo::target_object_handle(Assembler* origin) {
+  if (IsDataEmbeddedObject(rmode_)) {
+    return Handle<HeapObject>::cast(ReadUnalignedValue<Handle<Object>>(pc_));
+  } else {
     DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_));
     return Handle<HeapObject>(reinterpret_cast<Address*>(
         Assembler::target_address_at(pc_, constant_pool_)));
+  }
 }
 
 void RelocInfo::set_target_object(Heap* heap, HeapObject target,
                                   WriteBarrierMode write_barrier_mode,
                                   ICacheFlushMode icache_flush_mode) {
-  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_));
+  DCHECK(IsCodeTarget(rmode_) || IsFullEmbeddedObject(rmode_) ||
+         IsDataEmbeddedObject(rmode_));
+  if (IsDataEmbeddedObject(rmode_)) {
+    WriteUnalignedValue(pc_, target.ptr());
+    // No need to flush icache since no instructions were changed.
+  } else {
     Assembler::set_target_address_at(pc_, constant_pool_, target.ptr(),
                                      icache_flush_mode);
+  }
   if (write_barrier_mode == UPDATE_WRITE_BARRIER && !host().is_null() &&
       !FLAG_disable_write_barriers) {
     WriteBarrierForCode(host(), this, target);

src/codegen/mips64/assembler-mips64.cc

@@ -3779,14 +3779,22 @@ void Assembler::db(uint8_t data) {
   pc_ += sizeof(uint8_t);
 }
 
-void Assembler::dd(uint32_t data) {
+void Assembler::dd(uint32_t data, RelocInfo::Mode rmode) {
   CheckForEmitInForbiddenSlot();
+  if (!RelocInfo::IsNone(rmode)) {
+    DCHECK(RelocInfo::IsDataEmbeddedObject(rmode));
+    RecordRelocInfo(rmode);
+  }
   *reinterpret_cast<uint32_t*>(pc_) = data;
   pc_ += sizeof(uint32_t);
 }
 
-void Assembler::dq(uint64_t data) {
+void Assembler::dq(uint64_t data, RelocInfo::Mode rmode) {
   CheckForEmitInForbiddenSlot();
+  if (!RelocInfo::IsNone(rmode)) {
+    DCHECK(RelocInfo::IsDataEmbeddedObject(rmode));
+    RecordRelocInfo(rmode);
+  }
   *reinterpret_cast<uint64_t*>(pc_) = data;
   pc_ += sizeof(uint64_t);
 }

src/codegen/mips64/assembler-mips64.h

@@ -1474,9 +1474,11 @@ class V8_EXPORT_PRIVATE Assembler : public AssemblerBase {
   // Writes a single byte or word of data in the code stream.  Used for
   // inline tables, e.g., jump-tables.
   void db(uint8_t data);
-  void dd(uint32_t data);
-  void dq(uint64_t data);
-  void dp(uintptr_t data) { dq(data); }
+  void dd(uint32_t data, RelocInfo::Mode rmode = RelocInfo::NONE);
+  void dq(uint64_t data, RelocInfo::Mode rmode = RelocInfo::NONE);
+  void dp(uintptr_t data, RelocInfo::Mode rmode = RelocInfo::NONE) {
+    dq(data, rmode);
+  }
   void dd(Label* label);
 
   // Postpone the generation of the trampoline pool for the specified number of