Inline Array.prototype.forEach in TurboFan

src/builtins/mips64/builtins-mips64.cc

Index: src/builtins/mips64/builtins-mips64.cc
diff --git a/src/builtins/mips64/builtins-mips64.cc b/src/builtins/mips64/builtins-mips64.cc
index 4d80993952b6f70cd4d54c37c2617bc93cdfe81e..f292807a635a4a5802bc745b97785bc325852431 100644
--- a/src/builtins/mips64/builtins-mips64.cc
+++ b/src/builtins/mips64/builtins-mips64.cc
@@ -1647,6 +1647,70 @@ void Builtins::Generate_NotifyStubFailureSaveDoubles(MacroAssembler* masm) {
   Generate_NotifyStubFailureHelper(masm, kSaveFPRegs);
 }
 
+void Builtins::Generate_NotifyBuiltinContinuation(MacroAssembler* masm) {
+  {
+    FrameScope scope(masm, StackFrame::INTERNAL);
+    // Preserve possible return result from lazy deopt.
+    __ push(v0);
+    // Pass the function and deoptimization type to the runtime system.
+    __ CallRuntime(Runtime::kNotifyStubFailure, false);
+    __ pop(v0);
+  }
+
+  __ Daddu(sp, sp, Operand(kPointerSize));  // Ignore state
+  __ Jump(ra);  // Jump to the ContinueToBuiltin stub
+}
+
+namespace {
+void Generate_ContinueToBuiltinHelper(MacroAssembler* masm,
+                                      bool java_script_builtin,
+                                      bool with_result) {
+  const RegisterConfiguration* config(RegisterConfiguration::Turbofan());
+  int allocatable_register_count = config->num_allocatable_general_registers();
+  if (with_result) {
+    // Overwrite the hole inserted by the deoptimizer with the return value from
+    // the LAZY deopt point.
+    __ Sd(v0,
+          MemOperand(
+              sp, config->num_allocatable_general_registers() * kPointerSize +
+                      BuiltinContinuationFrameConstants::kFixedFrameSize));
+  }
+  for (int i = allocatable_register_count - 1; i >= 0; --i) {
+    int code = config->GetAllocatableGeneralCode(i);
+    __ Pop(Register::from_code(code));
+    if (java_script_builtin && code == kJavaScriptCallArgCountRegister.code()) {
+      __ SmiUntag(Register::from_code(code));
+    }
+  }
+  __ Ld(fp, MemOperand(
+                sp, BuiltinContinuationFrameConstants::kFixedFrameSizeFromFp));
+  __ Pop(t0);
+  __ Daddu(sp, sp,
+           Operand(BuiltinContinuationFrameConstants::kFixedFrameSizeFromFp));
+  __ Pop(ra);
+  __ Daddu(t0, t0, Operand(Code::kHeaderSize - kHeapObjectTag));
+  __ Jump(t0);
+}
+}  // namespace
+
+void Builtins::Generate_ContinueToCodeStubBuiltin(MacroAssembler* masm) {
+  Generate_ContinueToBuiltinHelper(masm, false, false);
+}
+
+void Builtins::Generate_ContinueToCodeStubBuiltinWithResult(
+    MacroAssembler* masm) {
+  Generate_ContinueToBuiltinHelper(masm, false, true);
+}
+
+void Builtins::Generate_ContinueToJavaScriptBuiltin(MacroAssembler* masm) {
+  Generate_ContinueToBuiltinHelper(masm, true, false);
+}
+
+void Builtins::Generate_ContinueToJavaScriptBuiltinWithResult(
+    MacroAssembler* masm) {
+  Generate_ContinueToBuiltinHelper(masm, true, true);
+}
+
 static void Generate_NotifyDeoptimizedHelper(MacroAssembler* masm,
                                              Deoptimizer::BailoutType type) {
   {