Support Smi in CompareIDAndBranch

src/arm/lithium-arm.cc

Index: src/arm/lithium-arm.cc
diff --git a/src/arm/lithium-arm.cc b/src/arm/lithium-arm.cc
index 3f30902e24c282ab141b6c44ab515ac1d2db9849..2ad6eb46b4b3fc6f34e4df6726ef2bcf1cf96a77 100644
--- a/src/arm/lithium-arm.cc
+++ b/src/arm/lithium-arm.cc
@@ -1681,9 +1681,10 @@ LInstruction* LChunkBuilder::DoCompareGeneric(HCompareGeneric* instr) {
 LInstruction* LChunkBuilder::DoCompareIDAndBranch(
     HCompareIDAndBranch* instr) {
   Representation r = instr->representation();
-  if (r.IsInteger32()) {
-    ASSERT(instr->left()->representation().IsInteger32());
-    ASSERT(instr->right()->representation().IsInteger32());
+  if (r.IsSmiOrInteger32()) {
+    ASSERT(instr->left()->representation().IsSmiOrInteger32());
+    ASSERT(instr->left()->representation().Equals(
+        instr->right()->representation()));
     LOperand* left = UseRegisterOrConstantAtStart(instr->left());
     LOperand* right = UseRegisterOrConstantAtStart(instr->right());
     return new(zone()) LCmpIDAndBranch(left, right);