[arm64] cleanup heap numbers detection

src/arm64/lithium-arm64.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_ARM64_LITHIUM_ARM64_H_
 #define V8_ARM64_LITHIUM_ARM64_H_
 
 #include "src/hydrogen.h"
 #include "src/lithium.h"
 #include "src/lithium-allocator.h"
@@ skipping 1022 matching lines @@
   explicit LClampIToUint8(LOperand* unclamped) {
     inputs_[0] = unclamped;
   }
 
   LOperand* unclamped() { return inputs_[0]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampIToUint8, "clamp-i-to-uint8")
 };
 
 
-class LClampTToUint8 FINAL : public LTemplateInstruction<1, 1, 2> {
+class LClampTToUint8 FINAL : public LTemplateInstruction<1, 1, 1> {
  public:
-  LClampTToUint8(LOperand* unclamped, LOperand* temp1, LOperand* temp2) {
+  LClampTToUint8(LOperand* unclamped, LOperand* temp1) {
     inputs_[0] = unclamped;
     temps_[0] = temp1;
-    temps_[1] = temp2;
   }
 
   LOperand* unclamped() { return inputs_[0]; }
   LOperand* temp1() { return temps_[0]; }
-  LOperand* temp2() { return temps_[1]; }
 
   DECLARE_CONCRETE_INSTRUCTION(ClampTToUint8, "clamp-t-to-uint8")
 };
 
 
 class LDoubleBits FINAL : public LTemplateInstruction<1, 1, 0> {
  public:
   explicit LDoubleBits(LOperand* value) {
     inputs_[0] = value;
   }
@@ skipping 2217 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(LChunkBuilder);
 };
 
 #undef DECLARE_HYDROGEN_ACCESSOR
 #undef DECLARE_CONCRETE_INSTRUCTION
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM64_LITHIUM_ARM64_H_