Remove unused 'unsafe smi' code on x64.

src/x64/macro-assembler-x64.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1231 matching lines @@
   j(NegateCondition(is_valid), on_invalid);
 }
 
 
 void MacroAssembler::JumpIfNotBothSmi(Register src1, Register src2,
                                       Label* on_not_both_smi) {
   Condition both_smi = CheckBothSmi(src1, src2);
   j(NegateCondition(both_smi), on_not_both_smi);
 }
 
-bool MacroAssembler::IsUnsafeSmi(Smi* value) {
-  return false;
-}
-
-
-void MacroAssembler::LoadUnsafeSmi(Register dst, Smi* source) {
-  UNIMPLEMENTED();
-}
-
-
-void MacroAssembler::Move(Register dst, Smi* source) {
-  if (IsUnsafeSmi(source)) {
-    LoadUnsafeSmi(dst, source);
-  } else {
-    Set(dst, reinterpret_cast<int64_t>(source));
-  }
-}
-
-
-void MacroAssembler::Move(const Operand& dst, Smi* source) {
-  if (IsUnsafeSmi(source)) {
-    LoadUnsafeSmi(kScratchRegister, source);
-    movq(dst, kScratchRegister);
-  } else {
-    Set(dst, reinterpret_cast<int64_t>(source));
-  }
-}
-
 
 void MacroAssembler::Move(Register dst, Handle<Object> source) {
   ASSERT(!source->IsFailure());
   if (source->IsSmi()) {
     Move(dst, Smi::cast(*source));
   } else {
     movq(dst, source, RelocInfo::EMBEDDED_OBJECT);
   }
 }
 
@@ skipping 35 matching lines @@
     Push(Smi::cast(*source));
   } else {
     ASSERT(source->IsHeapObject());
     movq(kScratchRegister, source, RelocInfo::EMBEDDED_OBJECT);
     push(kScratchRegister);
   }
 }
 
 
 void MacroAssembler::Push(Smi* source) {
-  if (IsUnsafeSmi(source)) {
-    LoadUnsafeSmi(kScratchRegister, source);
+  intptr_t smi = reinterpret_cast<intptr_t>(source);
+  if (is_int32(smi)) {
+    push(Immediate(static_cast<int32_t>(smi)));
+  } else {
+    Set(kScratchRegister, smi);
     push(kScratchRegister);
-  } else {
-    intptr_t smi = reinterpret_cast<intptr_t>(source);
-    if (is_int32(smi)) {
-      push(Immediate(static_cast<int32_t>(smi)));
-    } else {
-      Set(kScratchRegister, smi);
-      push(kScratchRegister);
-    }
   }
 }
 
 
 void MacroAssembler::Test(const Operand& src, Smi* source) {
-  if (IsUnsafeSmi(source)) {
-    LoadUnsafeSmi(kScratchRegister, source);
+  intptr_t smi = reinterpret_cast<intptr_t>(source);
+  if (is_int32(smi)) {
+    testl(src, Immediate(static_cast<int32_t>(smi)));
+  } else {
+    Move(kScratchRegister, source);
     testq(src, kScratchRegister);
-  } else {
-    intptr_t smi = reinterpret_cast<intptr_t>(source);
-    if (is_int32(smi)) {
-      testl(src, Immediate(static_cast<int32_t>(smi)));
-    } else {
-      Move(kScratchRegister, source);
-      testq(src, kScratchRegister);
-    }
   }
 }
 
 
 void MacroAssembler::Jump(ExternalReference ext) {
   movq(kScratchRegister, ext);
   jmp(kScratchRegister);
 }
 
 
@@ skipping 891 matching lines @@
 CodePatcher::~CodePatcher() {
   // Indicate that code has changed.
   CPU::FlushICache(address_, size_);
 
   // Check that the code was patched as expected.
   ASSERT(masm_.pc_ == address_ + size_);
   ASSERT(masm_.reloc_info_writer.pos() == address_ + size_ + Assembler::kGap);
 }
 
 } }  // namespace v8::internal