[Turbofan] Make operand canonicalization distinguish between FP types.

src/compiler/instruction.cc

 // Copyright 2014 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/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/instruction.h"
 #include "src/compiler/schedule.h"
 #include "src/compiler/state-values-utils.h"
 
@@ skipping 41 matching lines @@
     case kOverflow:
     case kNotOverflow:
     case kUnorderedEqual:
     case kUnorderedNotEqual:
       return condition;
   }
   UNREACHABLE();
   return condition;
 }
 
+bool InstructionOperand::InterferesWith(const InstructionOperand& that) const {
+  if (!IsFPRegister() || !that.IsFPRegister()) return EqualsCanonicalized(that);
+  return LocationOperand::cast(this)->register_code() ==
+         LocationOperand::cast(that).register_code();
+}
 
 void InstructionOperand::Print(const RegisterConfiguration* config) const {
   OFStream os(stdout);
   PrintableInstructionOperand wrapper;
   wrapper.register_configuration_ = config;
   wrapper.op_ = *this;
   os << wrapper << std::endl;
 }
 
 
 void InstructionOperand::Print() const {
   const RegisterConfiguration* config =
       RegisterConfiguration::ArchDefault(RegisterConfiguration::TURBOFAN);
   Print(config);
 }
 
-
 std::ostream& operator<<(std::ostream& os,
                          const PrintableInstructionOperand& printable) {
   const InstructionOperand& op = printable.op_;
   const RegisterConfiguration* conf = printable.register_configuration_;
   switch (op.kind()) {
     case InstructionOperand::UNALLOCATED: {
       const UnallocatedOperand* unalloc = UnallocatedOperand::cast(&op);
       os << "v" << unalloc->virtual_register();
       if (unalloc->basic_policy() == UnallocatedOperand::FIXED_SLOT) {
         return os << "(=" << unalloc->fixed_slot_index() << "S)";
@@ skipping 85 matching lines @@
       }
       return os << "]";
     }
     case InstructionOperand::INVALID:
       return os << "(x)";
   }
   UNREACHABLE();
   return os;
 }
 
-
 void MoveOperands::Print(const RegisterConfiguration* config) const {
   OFStream os(stdout);
   PrintableInstructionOperand wrapper;
   wrapper.register_configuration_ = config;
   wrapper.op_ = destination();
   os << wrapper << " = ";
   wrapper.op_ = source();
   os << wrapper << std::endl;
 }
 
@@ skipping 834 matching lines @@
   }
   for (int i = 0; i < code.InstructionBlockCount(); i++) {
     printable.sequence_->PrintBlock(printable.register_configuration_, i);
   }
   return os;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8