[WIP][deoptimizer] Accept kCompressed as state value input

Change-Id: Ie09953d0b9453a1f22312ad1782e2c41b8230679
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1533858Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60435}

src/compiler/backend/code-generator.cc

@@ -1093,7 +1093,12 @@ void CodeGenerator::AddTranslationForOperand(Translation* translation,
     } else if (type == MachineType::Int64()) {
       translation->StoreInt64StackSlot(LocationOperand::cast(op)->index());
     } else {
-      CHECK_EQ(MachineRepresentation::kTagged, type.representation());
+#if defined(V8_COMPRESS_POINTERS)
+      CHECK(MachineRepresentation::kTagged == type.representation() ||
+            MachineRepresentation::kCompressed == type.representation());
+#else
+      CHECK(MachineRepresentation::kTagged == type.representation());
+#endif
       translation->StoreStackSlot(LocationOperand::cast(op)->index());
     }
   } else if (op->IsFPStackSlot()) {
@@ -1116,7 +1121,12 @@ void CodeGenerator::AddTranslationForOperand(Translation* translation,
     } else if (type == MachineType::Int64()) {
       translation->StoreInt64Register(converter.ToRegister(op));
     } else {
-      CHECK_EQ(MachineRepresentation::kTagged, type.representation());
+#if defined(V8_COMPRESS_POINTERS)
+      CHECK(MachineRepresentation::kTagged == type.representation() ||
+            MachineRepresentation::kCompressed == type.representation());
+#else
+      CHECK(MachineRepresentation::kTagged == type.representation());
+#endif
       translation->StoreRegister(converter.ToRegister(op));
     }
   } else if (op->IsFPRegister()) {

src/deoptimizer.cc

@@ -3072,13 +3072,19 @@ int TranslatedState::CreateNextTranslatedValue(
         return translated_value.GetChildrenCount();
       }
       intptr_t value = registers->GetRegister(input_reg);
+#if defined(V8_COMPRESS_POINTERS)
+      Address uncompressed_value = DecompressTaggedAny(
+          isolate()->isolate_root(), static_cast<uint32_t>(value));
+#else
+      Address uncompressed_value = value;
+#endif
       if (trace_file != nullptr) {
-        PrintF(trace_file, V8PRIxPTR_FMT " ; %s ", value,
+        PrintF(trace_file, V8PRIxPTR_FMT " ; %s ", uncompressed_value,
                converter.NameOfCPURegister(input_reg));
-        Object(value)->ShortPrint(trace_file);
+        Object(uncompressed_value)->ShortPrint(trace_file);
       }
       TranslatedValue translated_value =
-          TranslatedValue::NewTagged(this, Object(value));
+          TranslatedValue::NewTagged(this, Object(uncompressed_value));
       frame.Add(translated_value);
       return translated_value.GetChildrenCount();
     }
@@ -3194,13 +3200,20 @@ int TranslatedState::CreateNextTranslatedValue(
       int slot_offset =
           OptimizedFrame::StackSlotOffsetRelativeToFp(iterator->Next());
       intptr_t value = *(reinterpret_cast<intptr_t*>(fp + slot_offset));
+#if defined(V8_COMPRESS_POINTERS)
+      Address uncompressed_value = DecompressTaggedAny(
+          isolate()->isolate_root(), static_cast<uint32_t>(value));
+#else
+      Address uncompressed_value = value;
+#endif
       if (trace_file != nullptr) {
-        PrintF(trace_file, V8PRIxPTR_FMT " ;  [fp %c %3d]  ", value,
-               slot_offset < 0 ? '-' : '+', std::abs(slot_offset));
-        Object(value)->ShortPrint(trace_file);
+        PrintF(trace_file, V8PRIxPTR_FMT " ;  [fp %c %3d]  ",
+               uncompressed_value, slot_offset < 0 ? '-' : '+',
+               std::abs(slot_offset));
+        Object(uncompressed_value)->ShortPrint(trace_file);
       }
       TranslatedValue translated_value =
-          TranslatedValue::NewTagged(this, Object(value));
+          TranslatedValue::NewTagged(this, Object(uncompressed_value));
       frame.Add(translated_value);
       return translated_value.GetChildrenCount();
     }