Support floats and doubles in fields.

Change-Id: I19832106633405403f0461b3fe13b268abe39db3
diff --git a/compiler/optimizing/code_generator_x86.cc b/compiler/optimizing/code_generator_x86.cc
index 127ddbe..54a12fd 100644
--- a/compiler/optimizing/code_generator_x86.cc
+++ b/compiler/optimizing/code_generator_x86.cc
@@ -1844,10 +1844,18 @@
       break;
     }
 
-    case Primitive::kPrimFloat:
-    case Primitive::kPrimDouble:
-      LOG(FATAL) << "Unimplemented register type " << field_type;
-      UNREACHABLE();
+    case Primitive::kPrimFloat: {
+      XmmRegister value = locations->InAt(1).As<XmmRegister>();
+      __ movss(Address(obj, offset), value);
+      break;
+    }
+
+    case Primitive::kPrimDouble: {
+      XmmRegister value = locations->InAt(1).As<XmmRegister>();
+      __ movsd(Address(obj, offset), value);
+      break;
+    }
+
     case Primitive::kPrimVoid:
       LOG(FATAL) << "Unreachable type " << field_type;
       UNREACHABLE();
@@ -1917,10 +1925,18 @@
       break;
     }
 
-    case Primitive::kPrimFloat:
-    case Primitive::kPrimDouble:
-      LOG(FATAL) << "Unimplemented register type " << instruction->GetType();
-      UNREACHABLE();
+    case Primitive::kPrimFloat: {
+      XmmRegister out = locations->Out().As<XmmRegister>();
+      __ movss(out, Address(obj, offset));
+      break;
+    }
+
+    case Primitive::kPrimDouble: {
+      XmmRegister out = locations->Out().As<XmmRegister>();
+      __ movsd(out, Address(obj, offset));
+      break;
+    }
+
     case Primitive::kPrimVoid:
       LOG(FATAL) << "Unreachable type " << instruction->GetType();
       UNREACHABLE();
@@ -2508,10 +2524,18 @@
       break;
     }
 
-    case Primitive::kPrimFloat:
-    case Primitive::kPrimDouble:
-      LOG(FATAL) << "Unimplemented register type " << instruction->GetType();
-      UNREACHABLE();
+    case Primitive::kPrimFloat: {
+      XmmRegister out = locations->Out().As<XmmRegister>();
+      __ movss(out, Address(cls, offset));
+      break;
+    }
+
+    case Primitive::kPrimDouble: {
+      XmmRegister out = locations->Out().As<XmmRegister>();
+      __ movsd(out, Address(cls, offset));
+      break;
+    }
+
     case Primitive::kPrimVoid:
       LOG(FATAL) << "Unreachable type " << instruction->GetType();
       UNREACHABLE();
@@ -2583,10 +2607,18 @@
       break;
     }
 
-    case Primitive::kPrimFloat:
-    case Primitive::kPrimDouble:
-      LOG(FATAL) << "Unimplemented register type " << field_type;
-      UNREACHABLE();
+    case Primitive::kPrimFloat: {
+      XmmRegister value = locations->InAt(1).As<XmmRegister>();
+      __ movss(Address(cls, offset), value);
+      break;
+    }
+
+    case Primitive::kPrimDouble: {
+      XmmRegister value = locations->InAt(1).As<XmmRegister>();
+      __ movsd(Address(cls, offset), value);
+      break;
+    }
+
     case Primitive::kPrimVoid:
       LOG(FATAL) << "Unreachable type " << field_type;
       UNREACHABLE();