Rename PushInt64AsTwoSmis to PushRegisterAsTwoSmis and support x32 as well.

src/x64/macro-assembler-x64.cc

 // Copyright 2012 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 2265 matching lines @@
   intptr_t smi = reinterpret_cast<intptr_t>(source);
   if (is_int32(smi)) {
     Push(Immediate(static_cast<int32_t>(smi)));
   } else {
     Register constant = GetSmiConstant(source);
     Push(constant);
   }
 }
 
 
-void MacroAssembler::PushInt64AsTwoSmis(Register src, Register scratch) {
+void MacroAssembler::PushRegisterAsTwoSmis(Register src, Register scratch) {
+  ASSERT(!src.is(scratch));
   movp(scratch, src);
   // High bits.
-  shrp(src, Immediate(64 - kSmiShift));
+  shrp(src, Immediate(kPointerSize * kBitsPerByte - kSmiShift));
   shlp(src, Immediate(kSmiShift));
   Push(src);
   // Low bits.
   shlp(scratch, Immediate(kSmiShift));
   Push(scratch);
 }
 
 
-void MacroAssembler::PopInt64AsTwoSmis(Register dst, Register scratch) {
+void MacroAssembler::PopRegisterAsTwoSmis(Register dst, Register scratch) {
+  ASSERT(!dst.is(scratch));
   Pop(scratch);
   // Low bits.
   shrp(scratch, Immediate(kSmiShift));
   Pop(dst);
   shrp(dst, Immediate(kSmiShift));
   // High bits.
-  shlp(dst, Immediate(64 - kSmiShift));
+  shlp(dst, Immediate(kPointerSize * kBitsPerByte - kSmiShift));
   orp(dst, scratch);
 }
 
 
 void MacroAssembler::Test(const Operand& src, Smi* source) {
   testl(Operand(src, kIntSize), Immediate(source->value()));
 }
 
 
 // ----------------------------------------------------------------------------
@@ skipping 2833 matching lines @@
   if (ms.shift() > 0) sarl(rdx, Immediate(ms.shift()));
   movl(rax, dividend);
   shrl(rax, Immediate(31));
   addl(rdx, rax);
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64