[Interpreter] Add intrinsics called as stubs.

src/code-stubs.h

 // Copyright 2012 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_STUBS_H_
 #define V8_CODE_STUBS_H_
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/code-stub-assembler.h"
@@ skipping 416 matching lines @@
  public:                                      \
   Handle<Code> GenerateCode() override;       \
   DEFINE_CODE_STUB(NAME, SUPER)
 
 #define DEFINE_CALL_INTERFACE_DESCRIPTOR(NAME)                          \
  public:                                                                \
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override { \
     return NAME##Descriptor(isolate());                                 \
   }
 
+#define DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(PARAMETER_COUNT)         \
+ public:                                                                   \
+  CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {    \
+    return OnStackArgsDescriptorBase::ForArgs(isolate(), PARAMETER_COUNT); \
+  }
+
 // There are some code stubs we just can't describe right now with a
 // CallInterfaceDescriptor. Isolate behavior for those cases with this macro.
 // An attempt to retrieve a descriptor will fail.
 #define DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR()                         \
  public:                                                                \
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override { \
     UNREACHABLE();                                                      \
     return CallInterfaceDescriptor();                                   \
   }
 
@@ skipping 874 matching lines @@
 class MathPowStub: public PlatformCodeStub {
  public:
   enum ExponentType { INTEGER, DOUBLE, TAGGED, ON_STACK };
 
   MathPowStub(Isolate* isolate, ExponentType exponent_type)
       : PlatformCodeStub(isolate) {
     minor_key_ = ExponentTypeBits::encode(exponent_type);
   }
 
   CallInterfaceDescriptor GetCallInterfaceDescriptor() const override {
-    if (exponent_type() == TAGGED) {
+    if (exponent_type() == ON_STACK) {
+      return OnStackArgsDescriptorBase::ForArgs(isolate(), 2);
+    } else if (exponent_type() == TAGGED) {
       return MathPowTaggedDescriptor(isolate());
     } else if (exponent_type() == INTEGER) {
       return MathPowIntegerDescriptor(isolate());
+    } else {
+      // A CallInterfaceDescriptor doesn't specify double registers (yet).
+      DCHECK_EQ(DOUBLE, exponent_type());
+      return ContextOnlyDescriptor(isolate());
     }
-    // A CallInterfaceDescriptor doesn't specify double registers (yet).
-    return ContextOnlyDescriptor(isolate());
   }
 
  private:
   ExponentType exponent_type() const {
     return ExponentTypeBits::decode(minor_key_);
   }
 
   class ExponentTypeBits : public BitField<ExponentType, 0, 2> {};
 
   DEFINE_PLATFORM_CODE_STUB(MathPow, PlatformCodeStub);
@@ skipping 728 matching lines @@
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(JSEntry, PlatformCodeStub);
 };
 
 
 class RegExpExecStub: public PlatformCodeStub {
  public:
   explicit RegExpExecStub(Isolate* isolate) : PlatformCodeStub(isolate) { }
 
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(ContextOnly);
+  DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(4);
   DEFINE_PLATFORM_CODE_STUB(RegExpExec, PlatformCodeStub);
 };
 
 
 class RegExpConstructResultStub final : public HydrogenCodeStub {
  public:
   explicit RegExpConstructResultStub(Isolate* isolate)
       : HydrogenCodeStub(isolate) { }
 
   // Parameters accessed via CodeStubGraphBuilder::GetParameter()
@@ skipping 964 matching lines @@
 
   DEFINE_NULL_CALL_INTERFACE_DESCRIPTOR();
   DEFINE_PLATFORM_CODE_STUB(StoreBufferOverflow, PlatformCodeStub);
 };
 
 
 class SubStringStub : public PlatformCodeStub {
  public:
   explicit SubStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
-  DEFINE_CALL_INTERFACE_DESCRIPTOR(ContextOnly);
+  DEFINE_ON_STACK_CALL_INTERFACE_DESCRIPTOR(3);
   DEFINE_PLATFORM_CODE_STUB(SubString, PlatformCodeStub);
 };
 
 class ToStringStub final : public PlatformCodeStub {
  public:
   explicit ToStringStub(Isolate* isolate) : PlatformCodeStub(isolate) {}
 
   DEFINE_CALL_INTERFACE_DESCRIPTOR(TypeConversion);
   DEFINE_PLATFORM_CODE_STUB(ToString, PlatformCodeStub);
 };
@@ skipping 21 matching lines @@
 #undef DEFINE_HYDROGEN_CODE_STUB
 #undef DEFINE_CODE_STUB
 #undef DEFINE_CODE_STUB_BASE
 
 extern Representation RepresentationFromType(Type* type);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CODE_STUBS_H_