Merge "Long support in optimizing compiler."

3 files changed, 13 insertions, 3 deletions

diff --git a/compiler/utils/managed_register.h b/compiler/utils/managed_register.h
index 06ce3b4514..bfb2829a32 100644
--- a/compiler/utils/managed_register.h
+++ b/compiler/utils/managed_register.h
@@ -70,11 +70,13 @@ class ManagedRegister {
     return ManagedRegister();
   }
 
+  int RegId() const { return id_; }
+  explicit ManagedRegister(int reg_id) : id_(reg_id) { }
+
  protected:
   static const int kNoRegister = -1;
 
   ManagedRegister() : id_(kNoRegister) { }
-  explicit ManagedRegister(int reg_id) : id_(reg_id) { }
 
   int id_;
 };
diff --git a/compiler/utils/x86/managed_register_x86.cc b/compiler/utils/x86/managed_register_x86.cc
index 7fae7a8b6f..034a795622 100644
--- a/compiler/utils/x86/managed_register_x86.cc
+++ b/compiler/utils/x86/managed_register_x86.cc
@@ -33,7 +33,8 @@ namespace x86 {
   P(EDX, EDI)                 \
   P(ECX, EBX)                 \
   P(ECX, EDI)                 \
-  P(EBX, EDI)
+  P(EBX, EDI)                 \
+  P(ECX, EDX)
 
 
 struct RegisterPairDescriptor {
diff --git a/compiler/utils/x86/managed_register_x86.h b/compiler/utils/x86/managed_register_x86.h
index 0201a96ad0..09d2b4919d 100644
--- a/compiler/utils/x86/managed_register_x86.h
+++ b/compiler/utils/x86/managed_register_x86.h
@@ -37,7 +37,8 @@ enum RegisterPair {
   ECX_EBX = 7,
   ECX_EDI = 8,
   EBX_EDI = 9,
-  kNumberOfRegisterPairs = 10,
+  ECX_EDX = 10,  // Dalvik style passing
+  kNumberOfRegisterPairs = 11,
   kNoRegisterPair = -1,
 };
 
@@ -121,6 +122,12 @@ class X86ManagedRegister : public ManagedRegister {
     return FromRegId(AllocIdHigh()).AsCpuRegister();
   }
 
+  RegisterPair AsRegisterPair() const {
+    CHECK(IsRegisterPair());
+    return static_cast<RegisterPair>(id_ -
+        (kNumberOfCpuRegIds + kNumberOfXmmRegIds + kNumberOfX87RegIds));
+  }
+
   bool IsCpuRegister() const {
     CHECK(IsValidManagedRegister());
     return (0 <= id_) && (id_ < kNumberOfCpuRegIds);