Add MachineSignature, which is an encapsulation of the machine types for parameters and return valu…

src/compiler/machine-operator.h

 // Copyright 2013 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_COMPILER_MACHINE_OPERATOR_H_
 #define V8_COMPILER_MACHINE_OPERATOR_H_
 
 #include "src/compiler/machine-type.h"
 #include "src/compiler/opcodes.h"
 #include "src/compiler/operator.h"
@@ skipping 13 matching lines @@
   MachineType machine_type;
   WriteBarrierKind write_barrier_kind;
 };
 
 
 // Interface for building machine-level operators. These operators are
 // machine-level but machine-independent and thus define a language suitable
 // for generating code to run on architectures such as ia32, x64, arm, etc.
 class MachineOperatorBuilder {
  public:
-  explicit MachineOperatorBuilder(Zone* zone, MachineType word = pointer_rep())
+  explicit MachineOperatorBuilder(Zone* zone, MachineType word = kMachPtr)
       : zone_(zone), word_(word) {
     CHECK(word == kRepWord32 || word == kRepWord64);
   }
 
 #define SIMPLE(name, properties, inputs, outputs) \
   return new (zone_)                              \
       SimpleOperator(IrOpcode::k##name, properties, inputs, outputs, #name);
 
 #define OP1(name, ptype, pname, properties, inputs, outputs)               \
   return new (zone_)                                                       \
@@ skipping 104 matching lines @@
 
   // Floating point comparisons complying to IEEE 754.
   Operator* Float64Equal() { BINOP_C(Float64Equal); }
   Operator* Float64LessThan() { BINOP(Float64LessThan); }
   Operator* Float64LessThanOrEqual() { BINOP(Float64LessThanOrEqual); }
 
   inline bool is32() const { return word_ == kRepWord32; }
   inline bool is64() const { return word_ == kRepWord64; }
   inline MachineType word() const { return word_; }
 
-  static inline MachineType pointer_rep() {
-    return kPointerSize == 8 ? kRepWord64 : kRepWord32;
-  }
-
 #undef WORD_SIZE
 #undef UNOP
 #undef BINOP
 #undef OP1
 #undef SIMPLE
 
  private:
   Zone* zone_;
   MachineType word_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_MACHINE_OPERATOR_H_