Line data    Source code

       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             : #include "src/macro-assembler.h"
      10             : 
      11             : namespace v8 {
      12             : namespace internal {
      13             : 
      14         224 : TF_BUILTIN(FastConsoleAssert, CodeStubAssembler) {
      15         112 :   Label runtime(this);
      16          56 :   Label out(this);
      17             : 
      18             :   // TODO(ishell): use constants from Descriptor once the JSFunction linkage
      19             :   // arguments are reordered.
      20             :   Node* argc = Parameter(Descriptor::kJSActualArgumentsCount);
      21             :   Node* context = Parameter(Descriptor::kContext);
      22             :   Node* new_target = Parameter(Descriptor::kJSNewTarget);
      23         168 :   GotoIf(Word32Equal(argc, Int32Constant(0)), &runtime);
      24             : 
      25         168 :   CodeStubArguments args(this, ChangeInt32ToIntPtr(argc));
      26         112 :   BranchIfToBooleanIsTrue(args.AtIndex(0), &out, &runtime);
      27          56 :   BIND(&out);
      28         112 :   args.PopAndReturn(UndefinedConstant());
      29             : 
      30          56 :   BIND(&runtime);
      31             :   {
      32             :     // We are not using Parameter(Descriptor::kJSTarget) and loading the value
      33             :     // from the current frame here in order to reduce register pressure on the
      34             :     // fast path.
      35          56 :     TNode<JSFunction> target = LoadTargetFromFrame();
      36          56 :     TailCallBuiltin(Builtins::kConsoleAssert, context, target, new_target,
      37          56 :                     argc);
      38             :   }
      39          56 : }
      40             : 
      41             : }  // namespace internal
      42       59480 : }  // namespace v8