Introduce simplified BooleanToNumber operator.

src/compiler/simplified-operator.cc

 // 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.
 
 #include "src/compiler/simplified-operator.h"
 
 #include "src/base/lazy-instance.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
 #include "src/types-inl.h"
@@ skipping 47 matching lines @@
   static bool Equals(const ElementAccess& lhs, const ElementAccess& rhs) {
     return lhs.base_is_tagged == rhs.base_is_tagged &&
            lhs.header_size == rhs.header_size &&
            lhs.machine_type == rhs.machine_type && lhs.type->Is(rhs.type);
   }
 };
 
 
 #define PURE_OP_LIST(V)                                \
   V(BooleanNot, Operator::kNoProperties, 1)            \
+  V(BooleanToNumber, Operator::kNoProperties, 1)       \

[titzer, 2014/09/17 12:01:22]

Should be pure. And I think the Number operators should be as well.

[Michael Starzinger, 2014/09/17 12:43:28]

Acknowledged. I agree, please appreciate kPure being added in line 104 further
down ...

   V(NumberEqual, Operator::kCommutative, 2)            \
   V(NumberLessThan, Operator::kNoProperties, 2)        \
   V(NumberLessThanOrEqual, Operator::kNoProperties, 2) \
   V(NumberAdd, Operator::kCommutative, 2)              \
   V(NumberSubtract, Operator::kNoProperties, 2)        \
   V(NumberMultiply, Operator::kCommutative, 2)         \
   V(NumberDivide, Operator::kNoProperties, 2)          \
   V(NumberModulus, Operator::kNoProperties, 2)         \
   V(NumberToInt32, Operator::kNoProperties, 1)         \
   V(NumberToUint32, Operator::kNoProperties, 1)        \
@@ skipping 15 matching lines @@
   V(LoadField, FieldAccess, Operator::kNoWrite, 1, 1)     \
   V(StoreField, FieldAccess, Operator::kNoRead, 2, 0)     \
   V(LoadElement, ElementAccess, Operator::kNoWrite, 2, 1) \
   V(StoreElement, ElementAccess, Operator::kNoRead, 3, 0)
 
 
 struct SimplifiedOperatorBuilderImpl FINAL {
 #define PURE(Name, properties, input_count)                               \
   struct Name##Operator FINAL : public SimpleOperator {                   \
     Name##Operator()                                                      \
         : SimpleOperator(IrOpcode::k##Name, Operator::kPure | properties, \

[Michael Starzinger, 2014/09/17 12:43:28]

... here.

                          input_count, 1, #Name) {}                        \
   };                                                                      \
   Name##Operator k##Name;
   PURE_OP_LIST(PURE)
 #undef PURE
 };
 
 
 static base::LazyInstance<SimplifiedOperatorBuilderImpl>::type kImpl =
     LAZY_INSTANCE_INITIALIZER;
@@ skipping 22 matching lines @@
     return new (zone())                                                     \
         Operator1<Type>(IrOpcode::k##Name, Operator::kNoThrow | properties, \
                         input_count, output_count, #Name, access);          \
   }
 ACCESS_OP_LIST(ACCESS)
 #undef ACCESS
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8