1 // Copyright 2017 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/builtins/builtins-utils-gen.h"
6 #include "src/builtins/builtins.h"
7 #include "src/code-stub-assembler.h"
8 #include "src/frame-constants.h"
9
10 namespace v8 {
11 namespace internal {
12
TF_BUILTIN(FastConsoleAssert,CodeStubAssembler)13 TF_BUILTIN(FastConsoleAssert, CodeStubAssembler) {
14 Label runtime(this);
15 Label out(this);
16
17 // TODO(ishell): use constants from Descriptor once the JSFunction linkage
18 // arguments are reordered.
19 Node* argc = Parameter(BuiltinDescriptor::kArgumentsCount);
20 Node* context = Parameter(BuiltinDescriptor::kContext);
21 Node* new_target = Parameter(BuiltinDescriptor::kNewTarget);
22 GotoIf(Word32Equal(argc, Int32Constant(0)), &runtime);
23
24 CodeStubArguments args(this, ChangeInt32ToIntPtr(argc));
25 BranchIfToBooleanIsTrue(args.AtIndex(0), &out, &runtime);
26 BIND(&out);
27 args.PopAndReturn(UndefinedConstant());
28
29 BIND(&runtime);
30 {
31 Node* target = LoadFromFrame(StandardFrameConstants::kFunctionOffset,
32 MachineType::TaggedPointer());
33 TailCallBuiltin(Builtins::kConsoleAssert, context, target, new_target,
34 argc);
35 }
36 }
37
38 } // namespace internal
39 } // namespace v8
40