Revert "load store elimination."

Breaks libcore tests:

  libcore.java.lang.ref.FinalizeTest#testWatchdogDoesNotFailForObjectsThatAreNearTheDeadline
  libcore.java.util.ResourceLeakageDetectorTest#testDetectsUnclosedCloseGuard
  org.apache.harmony.tests.java.lang.ref.ReferenceTest#test_finalizeReferenceInteraction

This reverts commit 589dac7f0ce078d19aad7e35bb0195c47ddf01d2.

Change-Id: I55115765c10762d5bc152d3425e4622560d8b9f4
diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 4f4648d..0d668e8 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -75,7 +75,6 @@
 static constexpr uint64_t kMaxLongShiftValue = 0x3f;
 
 static constexpr uint32_t kUnknownFieldIndex = static_cast<uint32_t>(-1);
-static constexpr uint16_t kUnknownClassDefIndex = static_cast<uint16_t>(-1);
 
 static constexpr InvokeType kInvalidInvokeType = static_cast<InvokeType>(-1);
 
@@ -4182,21 +4181,18 @@
             Primitive::Type field_type,
             bool is_volatile,
             uint32_t index,
-            uint16_t declaring_class_def_index,
             const DexFile& dex_file,
             Handle<mirror::DexCache> dex_cache)
       : field_offset_(field_offset),
         field_type_(field_type),
         is_volatile_(is_volatile),
         index_(index),
-        declaring_class_def_index_(declaring_class_def_index),
         dex_file_(dex_file),
         dex_cache_(dex_cache) {}
 
   MemberOffset GetFieldOffset() const { return field_offset_; }
   Primitive::Type GetFieldType() const { return field_type_; }
   uint32_t GetFieldIndex() const { return index_; }
-  uint16_t GetDeclaringClassDefIndex() const { return declaring_class_def_index_;}
   const DexFile& GetDexFile() const { return dex_file_; }
   bool IsVolatile() const { return is_volatile_; }
   Handle<mirror::DexCache> GetDexCache() const { return dex_cache_; }
@@ -4206,7 +4202,6 @@
   const Primitive::Type field_type_;
   const bool is_volatile_;
   const uint32_t index_;
-  const uint16_t declaring_class_def_index_;
   const DexFile& dex_file_;
   const Handle<mirror::DexCache> dex_cache_;
 };
@@ -4218,20 +4213,13 @@
                     MemberOffset field_offset,
                     bool is_volatile,
                     uint32_t field_idx,
-                    uint16_t declaring_class_def_index,
                     const DexFile& dex_file,
                     Handle<mirror::DexCache> dex_cache,
                     uint32_t dex_pc)
-      : HExpression(field_type,
-                    SideEffects::FieldReadOfType(field_type, is_volatile),
-                    dex_pc),
-        field_info_(field_offset,
-                    field_type,
-                    is_volatile,
-                    field_idx,
-                    declaring_class_def_index,
-                    dex_file,
-                    dex_cache) {
+      : HExpression(
+            field_type,
+            SideEffects::FieldReadOfType(field_type, is_volatile), dex_pc),
+        field_info_(field_offset, field_type, is_volatile, field_idx, dex_file, dex_cache) {
     SetRawInputAt(0, value);
   }
 
@@ -4271,19 +4259,12 @@
                     MemberOffset field_offset,
                     bool is_volatile,
                     uint32_t field_idx,
-                    uint16_t declaring_class_def_index,
                     const DexFile& dex_file,
                     Handle<mirror::DexCache> dex_cache,
                     uint32_t dex_pc)
-      : HTemplateInstruction(SideEffects::FieldWriteOfType(field_type, is_volatile),
-                             dex_pc),
-        field_info_(field_offset,
-                    field_type,
-                    is_volatile,
-                    field_idx,
-                    declaring_class_def_index,
-                    dex_file,
-                    dex_cache),
+      : HTemplateInstruction(
+          SideEffects::FieldWriteOfType(field_type, is_volatile), dex_pc),
+        field_info_(field_offset, field_type, is_volatile, field_idx, dex_file, dex_cache),
         value_can_be_null_(true) {
     SetRawInputAt(0, object);
     SetRawInputAt(1, value);
@@ -4704,20 +4685,13 @@
                   MemberOffset field_offset,
                   bool is_volatile,
                   uint32_t field_idx,
-                  uint16_t declaring_class_def_index,
                   const DexFile& dex_file,
                   Handle<mirror::DexCache> dex_cache,
                   uint32_t dex_pc)
-      : HExpression(field_type,
-                    SideEffects::FieldReadOfType(field_type, is_volatile),
-                    dex_pc),
-        field_info_(field_offset,
-                    field_type,
-                    is_volatile,
-                    field_idx,
-                    declaring_class_def_index,
-                    dex_file,
-                    dex_cache) {
+      : HExpression(
+            field_type,
+            SideEffects::FieldReadOfType(field_type, is_volatile), dex_pc),
+        field_info_(field_offset, field_type, is_volatile, field_idx, dex_file, dex_cache) {
     SetRawInputAt(0, cls);
   }
 
@@ -4754,19 +4728,12 @@
                   MemberOffset field_offset,
                   bool is_volatile,
                   uint32_t field_idx,
-                  uint16_t declaring_class_def_index,
                   const DexFile& dex_file,
                   Handle<mirror::DexCache> dex_cache,
                   uint32_t dex_pc)
-      : HTemplateInstruction(SideEffects::FieldWriteOfType(field_type, is_volatile),
-                             dex_pc),
-        field_info_(field_offset,
-                    field_type,
-                    is_volatile,
-                    field_idx,
-                    declaring_class_def_index,
-                    dex_file,
-                    dex_cache),
+      : HTemplateInstruction(
+          SideEffects::FieldWriteOfType(field_type, is_volatile), dex_pc),
+        field_info_(field_offset, field_type, is_volatile, field_idx, dex_file, dex_cache),
         value_can_be_null_(true) {
     SetRawInputAt(0, cls);
     SetRawInputAt(1, value);