Revert^2 "Hash-based DexCache field array."

Test: testrunner.py --host --interpreter
Bug: 30627598

This reverts commit 6374c58f2ea403b3a05fb27376110fe4d0fc8e3f.

Change-Id: I275508e288a85d3aa08f7405a1a4f362af43b775

1 files changed, 10 insertions, 2 deletions

diff --git a/runtime/mirror/field.cc b/runtime/mirror/field.cc
index f6b64897fa..54034c2bbf 100644
--- a/runtime/mirror/field.cc
+++ b/runtime/mirror/field.cc
@@ -68,8 +68,16 @@ ArtField* Field::GetArtField() {
     }
   }
   mirror::DexCache* const dex_cache = declaring_class->GetDexCache();
-  ArtField* const art_field = dex_cache->GetResolvedField(GetDexFieldIndex(), kRuntimePointerSize);
-  CHECK(art_field != nullptr);
+  ArtField* art_field = dex_cache->GetResolvedField(GetDexFieldIndex(), kRuntimePointerSize);
+  if (UNLIKELY(art_field == nullptr)) {
+    if (IsStatic()) {
+      art_field = declaring_class->FindDeclaredStaticField(dex_cache, GetDexFieldIndex());
+    } else {
+      art_field = declaring_class->FindInstanceField(dex_cache, GetDexFieldIndex());
+    }
+    CHECK(art_field != nullptr);
+    dex_cache->SetResolvedField(GetDexFieldIndex(), art_field, kRuntimePointerSize);
+  }
   CHECK_EQ(declaring_class, art_field->GetDeclaringClass());
   return art_field;
 }