Add HArrayBufferNotNeutered instruction

src/mips64/lithium-codegen-mips64.cc

Index: src/mips64/lithium-codegen-mips64.cc
diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index c7dd637c24a4e708b9178a5bb85f5d54a5dd032b..bf3119d080aa752f9497be9aa864495d7739ca88 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -5228,6 +5228,22 @@ void LCodeGen::DoCheckNonSmi(LCheckNonSmi* instr) {
 }
 
 
+void LCodeGen::DoCheckArrayBufferNotNeutered(
+    LCheckArrayBufferNotNeutered* instr) {
+  Register view = ToRegister(instr->view());
+  Register scratch = scratch0();
+
+  Label has_no_buffer;
+  __ lw(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset));
+  __ JumpIfSmi(scratch, &has_no_buffer);
+  __ lw(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset));
+  __ And(at, scratch, 1 << JSArrayBuffer::WasNeutered::kShift);
+  DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds);
+
+  __ bind(&has_no_buffer);
+}
+
+
 void LCodeGen::DoCheckInstanceType(LCheckInstanceType* instr) {
   Register input = ToRegister(instr->value());
   Register scratch = scratch0();