ARM: Implement DoInstanceOfAndBranch in the lithium code generator

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index ea88cb3f84a92652ec2d98dd7f44ede82bd72c5a..539ead454250345908ad0ba70c842ce457d2a656 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -2004,7 +2004,16 @@ void LCodeGen::DoInstanceOf(LInstanceOf* instr) {
 
 
 void LCodeGen::DoInstanceOfAndBranch(LInstanceOfAndBranch* instr) {
-  Abort("DoInstanceOfAndBranch unimplemented.");
+  ASSERT(ToRegister(instr->InputAt(0)).is(r0));  // Object is in r0.
+  ASSERT(ToRegister(instr->InputAt(1)).is(r1));  // Function is in r1.
+
+  int true_block = chunk_->LookupDestination(instr->true_block_id());
+  int false_block = chunk_->LookupDestination(instr->false_block_id());
+
+  InstanceofStub stub(InstanceofStub::kArgsInRegisters);
+  CallCode(stub.GetCode(), RelocInfo::CODE_TARGET, instr);
+  __ tst(r0, Operand(r0));
+  EmitBranch(true_block, false_block, eq);
 }