[interpreter] Add support for scalable operands.

test/unittests/interpreter/interpreter-assembler-unittest.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_UNITTESTS_INTERPRETER_INTERPRETER_ASSEMBLER_UNITTEST_H_
 #define V8_UNITTESTS_INTERPRETER_INTERPRETER_ASSEMBLER_UNITTEST_H_
 
 #include "src/compiler/machine-operator.h"
 #include "src/interpreter/interpreter-assembler.h"
 #include "test/unittests/test-utils.h"
 #include "testing/gmock-support.h"
 
 namespace v8 {
 namespace internal {
 namespace interpreter {
 
 using ::testing::Matcher;
 
 class InterpreterAssemblerTest : public TestWithIsolateAndZone {
  public:
   InterpreterAssemblerTest() {}
   ~InterpreterAssemblerTest() override {}
 
   class InterpreterAssemblerForTest final : public InterpreterAssembler {
    public:
     InterpreterAssemblerForTest(InterpreterAssemblerTest* test,
-                                Bytecode bytecode)
-        : InterpreterAssembler(test->isolate(), test->zone(), bytecode) {}
+                                Bytecode bytecode, int operand_scale = 1)
+        : InterpreterAssembler(test->isolate(), test->zone(), bytecode,
+                               operand_scale) {}
     ~InterpreterAssemblerForTest() override {}
 
     Matcher<compiler::Node*> IsLoad(
         const Matcher<compiler::LoadRepresentation>& rep_matcher,
         const Matcher<compiler::Node*>& base_matcher,
         const Matcher<compiler::Node*>& index_matcher);
     Matcher<compiler::Node*> IsStore(
         const Matcher<compiler::StoreRepresentation>& rep_matcher,
         const Matcher<compiler::Node*>& base_matcher,
         const Matcher<compiler::Node*>& index_matcher,
         const Matcher<compiler::Node*>& value_matcher);
 
-    Matcher<compiler::Node*> IsBytecodeOperand(int offset);
-    Matcher<compiler::Node*> IsBytecodeOperandSignExtended(int offset);
-    Matcher<compiler::Node*> IsBytecodeOperandShort(int offset);
-    Matcher<compiler::Node*> IsBytecodeOperandShortSignExtended(int offset);
+    Matcher<compiler::Node*> IsUnsignedByteOperand(int offset);
+    Matcher<compiler::Node*> IsSignedByteOperand(int offset);
+    Matcher<compiler::Node*> IsUnsignedShortOperand(int offset);
+    Matcher<compiler::Node*> IsSignedShortOperand(int offset);
+    Matcher<compiler::Node*> IsUnsignedQuadOperand(int offset);
+    Matcher<compiler::Node*> IsSignedQuadOperand(int offset);
+
+    Matcher<compiler::Node*> IsSignedOperand(int offset,
+                                             OperandSize operand_size);
+    Matcher<compiler::Node*> IsUnsignedOperand(int offset,
+                                               OperandSize operand_size);
 
     using InterpreterAssembler::graph;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(InterpreterAssemblerForTest);
   };
 };
 
 }  // namespace interpreter
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_UNITTESTS_INTERPRETER_INTERPRETER_ASSEMBLER_UNITTEST_H_