[interpreter] Add explicit OSR polling bytecode.

src/builtins/arm/builtins-arm.cc

Index: src/builtins/arm/builtins-arm.cc
diff --git a/src/builtins/arm/builtins-arm.cc b/src/builtins/arm/builtins-arm.cc
index 2c9c9c0b0cde532b81ddf030d67cda4790728808..e0bb922ecc57953b8efbaaf15f49bd7add337dc0 100644
--- a/src/builtins/arm/builtins-arm.cc
+++ b/src/builtins/arm/builtins-arm.cc
@@ -1723,9 +1723,16 @@ void Builtins::Generate_HandleFastApiCall(MacroAssembler* masm) {
   __ TailCallRuntime(Runtime::kThrowIllegalInvocation);
 }
 
-void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
+static void Generate_OnStackReplacementHelper(MacroAssembler* masm,
+                                              bool has_handler_frame) {
   // Lookup the function in the JavaScript frame.
-  __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  if (has_handler_frame) {
+    __ ldr(r0, MemOperand(fp, StandardFrameConstants::kCallerFPOffset));
+    __ ldr(r0, MemOperand(r0, JavaScriptFrameConstants::kFunctionOffset));
+  } else {
+    __ ldr(r0, MemOperand(fp, JavaScriptFrameConstants::kFunctionOffset));
+  }
+
   {
     FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
     // Pass function as argument.
@@ -1733,7 +1740,7 @@ void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
     __ CallRuntime(Runtime::kCompileForOnStackReplacement);
   }
 
-  // If the code object is null, just return to the unoptimized code.
+  // If the code object is null, just return to the caller.
   Label skip;
   __ cmp(r0, Operand(Smi::FromInt(0)));
   __ b(ne, &skip);
@@ -1741,6 +1748,12 @@ void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
 
   __ bind(&skip);
 
+  // Drop any potential handler frame that is be sitting on top of the actual
+  // JavaScript frame. This is the case then OSR is triggered from bytecode.
+  if (has_handler_frame) {
+    __ LeaveFrame(StackFrame::STUB);
+  }
+
   // Load deoptimization data from the code object.
   // <deopt_data> = <code>[#deoptimization_data_offset]
   __ ldr(r1, FieldMemOperand(r0, Code::kDeoptimizationDataOffset));
@@ -1767,6 +1780,14 @@ void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
   }
 }
 
+void Builtins::Generate_OnStackReplacement(MacroAssembler* masm) {
+  Generate_OnStackReplacementHelper(masm, false);
+}
+
+void Builtins::Generate_InterpreterOnStackReplacement(MacroAssembler* masm) {
+  Generate_OnStackReplacementHelper(masm, true);
+}
+
 // static
 void Builtins::Generate_DatePrototype_GetField(MacroAssembler* masm,
                                                int field_index) {