Support longs in the register allocator for x86_64.

Change-Id: I7fb6dfb761bc5cf9e5705682032855a0a70ca867

1 files changed, 17 insertions, 0 deletions

diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 503f31d990..92920845c3 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -414,6 +414,7 @@ class HBasicBlock : public ArenaObject {
   M(ReturnVoid)                                            \
   M(StoreLocal)                                            \
   M(Sub)                                                   \
+  M(Compare)                                               \
 
 
 #define FORWARD_DECLARATION(type) class H##type;
@@ -986,6 +987,22 @@ class HGreaterThanOrEqual : public HCondition {
 };
 
 
+// Instruction to check how two inputs compare to each other.
+// Result is 0 if input0 == input1, 1 if input0 > input1, or -1 if input0 < input1.
+class HCompare : public HBinaryOperation {
+ public:
+  HCompare(Primitive::Type type, HInstruction* first, HInstruction* second)
+      : HBinaryOperation(Primitive::kPrimInt, first, second) {
+    DCHECK_EQ(type, first->GetType());
+    DCHECK_EQ(type, second->GetType());
+  }
+
+  DECLARE_INSTRUCTION(Compare);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HCompare);
+};
+
 // A local in the graph. Corresponds to a Dex register.
 class HLocal : public HTemplateInstruction<0> {
  public: