| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/builtins/builtins-utils-gen.h" |
| #include "src/builtins/builtins.h" |
| #include "src/codegen/code-stub-assembler.h" |
| #include "src/codegen/macro-assembler.h" |
| #include "src/execution/frame-constants.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| TF_BUILTIN(FastConsoleAssert, CodeStubAssembler) { |
| Label runtime(this); |
| Label out(this); |
| |
| TNode<Int32T> argc = |
| UncheckedCast<Int32T>(Parameter(Descriptor::kJSActualArgumentsCount)); |
| TNode<Context> context = CAST(Parameter(Descriptor::kContext)); |
| TNode<Object> new_target = CAST(Parameter(Descriptor::kJSNewTarget)); |
| GotoIf(Word32Equal(argc, Int32Constant(0)), &runtime); |
| |
| CodeStubArguments args(this, argc); |
| BranchIfToBooleanIsTrue(args.AtIndex(0), &out, &runtime); |
| BIND(&out); |
| args.PopAndReturn(UndefinedConstant()); |
| |
| BIND(&runtime); |
| { |
| // We are not using Parameter(Descriptor::kJSTarget) and loading the value |
| // from the current frame here in order to reduce register pressure on the |
| // fast path. |
| TNode<JSFunction> target = LoadTargetFromFrame(); |
| TailCallBuiltin(Builtins::kConsoleAssert, context, target, new_target, |
| argc); |
| } |
| } |
| |
| } // namespace internal |
| } // namespace v8 |