[stubs] Add more helper methods for heap constants

src/code-stub-assembler.h

 // Copyright 2016 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_CODE_STUB_ASSEMBLER_H_
 #define V8_CODE_STUB_ASSEMBLER_H_
 
 #include <functional>
 
 #include "src/compiler/code-assembler.h"
 #include "src/objects.h"
 
 namespace v8 {
 namespace internal {
 
 class CallInterfaceDescriptor;
 class StatsCounter;
 class StubCache;
 
 enum class PrimitiveType { kBoolean, kNumber, kString, kSymbol };
 
 enum class UnicodeEncoding {
   // Different unicode encodings in a |word32|:
   UTF16,  // hi 16bits -> trailing surrogate or 0, low 16bits -> lead surrogate
   UTF32,  // full UTF32 code unit / Unicode codepoint
 };
 
+#define HEAP_CONSTANT_LIST(V)                 \
+  V(empty_string, EmptyString)                \
+  V(FixedArrayMap, FixedArrayMap)             \
+  V(FixedCOWArrayMap, FixedCOWArrayMap)       \
+  V(FixedDoubleArrayMap, FixedDoubleArrayMap) \
+  V(HeapNumberMap, HeapNumberMap)             \
+  V(MinusZeroValue, MinusZero)                \
+  V(NanValue, Nan)                            \
+  V(NullValue, Null)                          \
+  V(UndefinedValue, Undefined)                \
+  V(TheHoleValue, TheHole)
+
 // Provides JavaScript-specific "macro-assembler" functionality on top of the
 // CodeAssembler. By factoring the JavaScript-isms out of the CodeAssembler,
 // it's possible to add JavaScript-specific useful CodeAssembler "macros"
 // without modifying files in the compiler directory (and requiring a review
 // from a compiler directory OWNER).
 class CodeStubAssembler : public compiler::CodeAssembler {
  public:
   // Create with CallStub linkage.
   // |result_size| specifies the number of results returned by the stub.
   // TODO(rmcilroy): move result_size to the CallInterfaceDescriptor.
@@ skipping 31 matching lines @@
   compiler::Node* UntagParameter(compiler::Node* value, ParameterMode mode) {
     if (mode != SMI_PARAMETERS) value = SmiUntag(value);
     return value;
   }
 
   compiler::Node* TagParameter(compiler::Node* value, ParameterMode mode) {
     if (mode != SMI_PARAMETERS) value = SmiTag(value);
     return value;
   }
 
+  compiler::Node* NoContextConstant();
   compiler::Node* BooleanMapConstant();
-  compiler::Node* EmptyStringConstant();
-  compiler::Node* FixedArrayMapConstant();
-  compiler::Node* FixedCowArrayMapConstant();
-  compiler::Node* FixedDoubleArrayMapConstant();
-  compiler::Node* HeapNumberMapConstant();
-  compiler::Node* NoContextConstant();
-  compiler::Node* NanConstant();
-  compiler::Node* NullConstant();
-  compiler::Node* MinusZeroConstant();
-  compiler::Node* UndefinedConstant();
-  compiler::Node* TheHoleConstant();
+#define HEAP_CONSTANT_ACCESSOR(rootName, name) compiler::Node* name##Constant();
+  HEAP_CONSTANT_LIST(HEAP_CONSTANT_ACCESSOR)
+#undef HEAP_CONSTANT_ACCESSOR
+
+  compiler::Node* IsBooleanMap(compiler::Node* value);
+#define HEAP_CONSTANT_TEST(rootName, name) \
+  compiler::Node* Is##name(compiler::Node* value);
+  HEAP_CONSTANT_LIST(HEAP_CONSTANT_TEST)
+#undef HEAP_CONSTANT_TEST
+
   compiler::Node* HashSeed();
   compiler::Node* StaleRegisterConstant();
 
   compiler::Node* IntPtrOrSmiConstant(int value, ParameterMode mode);
 
   // Float64 operations.
   compiler::Node* Float64Ceil(compiler::Node* x);
   compiler::Node* Float64Floor(compiler::Node* x);
   compiler::Node* Float64Round(compiler::Node* x);
   compiler::Node* Float64Trunc(compiler::Node* x);
@@ skipping 762 matching lines @@
                                            Label* bailout);
 
   static const int kElementLoopUnrollThreshold = 8;
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(CodeStubAssembler::AllocationFlags);
 
 }  // namespace internal
 }  // namespace v8
 #endif  // V8_CODE_STUB_ASSEMBLER_H_