diff --git a/compiler/optimizing/code_generator.cc b/compiler/optimizing/code_generator.cc
index 28ff1cf..7699bf1 100644
--- a/compiler/optimizing/code_generator.cc
+++ b/compiler/optimizing/code_generator.cc
@@ -115,8 +115,8 @@
   return -1;
 }
 
-size_t CodeGenerator::FindTwoFreeConsecutiveEntries(bool* array, size_t length) {
-  for (size_t i = 0; i < length - 1; ++i) {
+size_t CodeGenerator::FindTwoFreeConsecutiveAlignedEntries(bool* array, size_t length) {
+  for (size_t i = 0; i < length - 1; i += 2) {
     if (!array[i] && !array[i + 1]) {
       array[i] = true;
       array[i + 1] = true;
diff --git a/compiler/optimizing/code_generator.h b/compiler/optimizing/code_generator.h
index 1638869..2f12ad0 100644
--- a/compiler/optimizing/code_generator.h
+++ b/compiler/optimizing/code_generator.h
@@ -185,7 +185,7 @@
   virtual Location AllocateFreeRegister(Primitive::Type type) const = 0;
 
   static size_t FindFreeEntry(bool* array, size_t length);
-  static size_t FindTwoFreeConsecutiveEntries(bool* array, size_t length);
+  static size_t FindTwoFreeConsecutiveAlignedEntries(bool* array, size_t length);
 
   virtual Location GetStackLocation(HLoadLocal* load) const = 0;
 
diff --git a/compiler/optimizing/code_generator_arm.cc b/compiler/optimizing/code_generator_arm.cc
index 4733432..d50150e 100644
--- a/compiler/optimizing/code_generator_arm.cc
+++ b/compiler/optimizing/code_generator_arm.cc
@@ -272,7 +272,8 @@
     }
 
     case Primitive::kPrimDouble: {
-      int reg = FindTwoFreeConsecutiveEntries(blocked_fpu_registers_, kNumberOfSRegisters);
+      int reg = FindTwoFreeConsecutiveAlignedEntries(blocked_fpu_registers_, kNumberOfSRegisters);
+      DCHECK_EQ(reg % 2, 0);
       return Location::FpuRegisterPairLocation(reg, reg + 1);
     }
 
@@ -317,6 +318,14 @@
   blocked_fpu_registers_[S21] = true;
   blocked_fpu_registers_[S22] = true;
   blocked_fpu_registers_[S23] = true;
+  blocked_fpu_registers_[S24] = true;
+  blocked_fpu_registers_[S25] = true;
+  blocked_fpu_registers_[S26] = true;
+  blocked_fpu_registers_[S27] = true;
+  blocked_fpu_registers_[S28] = true;
+  blocked_fpu_registers_[S29] = true;
+  blocked_fpu_registers_[S30] = true;
+  blocked_fpu_registers_[S31] = true;
 
   UpdateBlockedPairRegisters();
 }