[es6] [interpreter] Add tail calls support to Ignition.

src/arm/builtins-arm.cc

Index: src/arm/builtins-arm.cc
diff --git a/src/arm/builtins-arm.cc b/src/arm/builtins-arm.cc
index af5da61a61ff00c51090295d5ecea01e979df7e1..efb42c0edfb4d29a918cadbfa0f0ab9d56d12ed4 100644
--- a/src/arm/builtins-arm.cc
+++ b/src/arm/builtins-arm.cc
@@ -1103,7 +1103,8 @@ static void Generate_InterpreterPushArgs(MacroAssembler* masm, Register index,
 
 
 // static
-void Builtins::Generate_InterpreterPushArgsAndCall(MacroAssembler* masm) {
+void Builtins::Generate_InterpreterPushArgsAndCallImpl(
+    MacroAssembler* masm, TailCallMode tail_call_mode) {
   // ----------- S t a t e -------------
   //  -- r0 : the number of arguments (not including the receiver)
   //  -- r2 : the address of the first argument to be pushed. Subsequent
@@ -1121,7 +1122,9 @@ void Builtins::Generate_InterpreterPushArgsAndCall(MacroAssembler* masm) {
   Generate_InterpreterPushArgs(masm, r2, r3, r4);
 
   // Call the target.
-  __ Jump(masm->isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
+  __ Jump(masm->isolate()->builtins()->Call(ConvertReceiverMode::kAny,
+                                            tail_call_mode),
+          RelocInfo::CODE_TARGET);
 }
 
 
@@ -2065,6 +2068,16 @@ void PrepareForTailCall(MacroAssembler* masm, Register args_reg,
   __ cmp(scratch1, Operand(0));
   __ b(ne, &done);
 
+  // Drop possible interpreter handler/stub frame.
+  {
+    Label no_interpreter_frame;
+    __ ldr(scratch3, MemOperand(fp, StandardFrameConstants::kMarkerOffset));
+    __ cmp(scratch3, Operand(Smi::FromInt(StackFrame::STUB)));
+    __ b(ne, &no_interpreter_frame);
+    __ ldr(fp, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
+    __ bind(&no_interpreter_frame);
+  }
+
   // Check if next frame is an arguments adaptor frame.
   Label no_arguments_adaptor, formal_parameter_count_loaded;
   __ ldr(scratch2, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));