[ignition] Use absolute values for jump offsets

src/interpreter/interpreter-assembler.h

 // Copyright 2015 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.
 
 #ifndef V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_
 #define V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_
 
 #include "src/allocation.h"
 #include "src/builtins/builtins.h"
 #include "src/code-stub-assembler.h"
@@ skipping 21 matching lines @@
   compiler::Node* BytecodeOperandFlag(int operand_index);
   // Returns the 32-bit zero-extended index immediate for bytecode operand
   // |operand_index| in the current bytecode.
   compiler::Node* BytecodeOperandIdx(int operand_index);
   // Returns the smi index immediate for bytecode operand |operand_index|
   // in the current bytecode.
   compiler::Node* BytecodeOperandIdxSmi(int operand_index);
   // Returns the 32-bit unsigned immediate for bytecode operand |operand_index|
   // in the current bytecode.
   compiler::Node* BytecodeOperandUImm(int operand_index);
+  // Returns the word-size unsigned immediate for bytecode operand
+  // |operand_index| in the current bytecode.
+  compiler::Node* BytecodeOperandUImmWord(int operand_index);
   // Returns the 32-bit signed immediate for bytecode operand |operand_index|
   // in the current bytecode.
   compiler::Node* BytecodeOperandImm(int operand_index);
   // Returns the word-size signed immediate for bytecode operand |operand_index|
   // in the current bytecode.
   compiler::Node* BytecodeOperandImmIntPtr(int operand_index);
   // Returns the smi immediate for bytecode operand |operand_index| in the
   // current bytecode.
   compiler::Node* BytecodeOperandImmSmi(int operand_index);
   // Returns the word-size sign-extended register index for bytecode operand
@@ skipping 91 matching lines @@
                                 compiler::Node* type_feedback_vector);
 
   // Call runtime function with |arg_count| arguments and the first argument
   // located at |first_arg|.
   compiler::Node* CallRuntimeN(compiler::Node* function_id,
                                compiler::Node* context,
                                compiler::Node* first_arg,
                                compiler::Node* arg_count, int return_size = 1);
 
   // Jump relative to the current bytecode by |jump_offset|.
-  compiler::Node* Jump(compiler::Node* jump_offset);
+  compiler::Node* Jump(compiler::Node* jump_offset, bool reverse = false);
 
   // Jump relative to the current bytecode by |jump_offset| if the
   // word values |lhs| and |rhs| are equal.
   void JumpIfWordEqual(compiler::Node* lhs, compiler::Node* rhs,
                        compiler::Node* jump_offset);
 
   // Jump relative to the current bytecode by |jump_offset| if the
   // word values |lhs| and |rhs| are not equal.
   void JumpIfWordNotEqual(compiler::Node* lhs, compiler::Node* rhs,
                           compiler::Node* jump_offset);
@@ skipping 101 matching lines @@
   // JumpIfWordNotEqual.
   void JumpConditional(compiler::Node* condition, compiler::Node* jump_offset);
 
   // Updates and returns BytecodeOffset() advanced by the current bytecode's
   // size. Traces the exit of the current bytecode.
   compiler::Node* Advance();
 
   // Updates and returns BytecodeOffset() advanced by delta bytecodes.
   // Traces the exit of the current bytecode.
   compiler::Node* Advance(int delta);
-  compiler::Node* Advance(compiler::Node* delta);
+  compiler::Node* Advance(compiler::Node* delta, bool reverse = false);
 
   // Load the bytecode at |bytecode_offset|.
   compiler::Node* LoadBytecode(compiler::Node* bytecode_offset);
 
   // Look ahead for Star and inline it in a branch. Returns a new target
   // bytecode node for dispatch.
   compiler::Node* StarDispatchLookahead(compiler::Node* target_bytecode);
 
   // Build code for Star at the current BytecodeOffset() and Advance() to the
   // next dispatch offset.
@@ skipping 26 matching lines @@
   compiler::Node* stack_pointer_before_call_;
 
   DISALLOW_COPY_AND_ASSIGN(InterpreterAssembler);
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_INTERPRETER_INTERPRETER_ASSEMBLER_H_