[Turbofan] Make operand canonicalization distinguish between FP types.

src/compiler/instruction.cc

Index: src/compiler/instruction.cc
diff --git a/src/compiler/instruction.cc b/src/compiler/instruction.cc
index b461c5d8965839a587e5c26c63f97a73cb0d3d3e..8f12efe7cb11458e29915df89aff3559e86187b1 100644
--- a/src/compiler/instruction.cc
+++ b/src/compiler/instruction.cc
@@ -59,6 +59,11 @@ FlagsCondition CommuteFlagsCondition(FlagsCondition condition) {
   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);
@@ -75,7 +80,6 @@ void InstructionOperand::Print() const {
   Print(config);
 }
 
-
 std::ostream& operator<<(std::ostream& os,
                          const PrintableInstructionOperand& printable) {
   const InstructionOperand& op = printable.op_;
@@ -181,7 +185,6 @@ std::ostream& operator<<(std::ostream& os,
   return os;
 }
 
-
 void MoveOperands::Print(const RegisterConfiguration* config) const {
   OFStream os(stdout);
   PrintableInstructionOperand wrapper;