Require SSE2 support for the ia32 port.

src/arm64/code-stubs-arm64.cc

 // 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.
 
 #include "v8.h"
 
 #if V8_TARGET_ARCH_ARM64
 
 #include "bootstrapper.h"
 #include "code-stubs.h"
@@ skipping 4385 matching lines @@
                             kExpectedAllocationSite);
   }
 
   // Tail call into the stub that handles binary operations with allocation
   // sites.
   BinaryOpWithAllocationSiteStub stub(isolate(), state_);
   __ TailCallStub(&stub);
 }
 
 
-bool CodeStub::CanUseFPRegisters() {
-  // FP registers always available on ARM64.
-  return true;
-}
-
-
 void RecordWriteStub::GenerateIncremental(MacroAssembler* masm, Mode mode) {
   // We need some extra registers for this stub, they have been allocated
   // but we need to save them before using them.
   regs_.Save(masm);
 
   if (remembered_set_action_ == EMIT_REMEMBERED_SET) {
     Label dont_need_remembered_set;
 
     Register value = regs_.scratch0();
     __ Ldr(value, MemOperand(regs_.address()));
@@ skipping 228 matching lines @@
 
   __ Bind(&double_elements);
   __ Ldr(x10, FieldMemOperand(array, JSObject::kElementsOffset));
   __ StoreNumberToDoubleElements(value, index_smi, x10, x11, d0,
                                  &slow_elements);
   __ Ret();
 }
 
 
 void StubFailureTrampolineStub::Generate(MacroAssembler* masm) {
-  CEntryStub ces(isolate(), 1, fp_registers_ ? kSaveFPRegs : kDontSaveFPRegs);
+  CEntryStub ces(isolate(), 1, kSaveFPRegs);
   __ Call(ces.GetCode(), RelocInfo::CODE_TARGET);
   int parameter_count_offset =
       StubFailureTrampolineFrame::kCallerStackParameterCountFrameOffset;
   __ Ldr(x1, MemOperand(fp, parameter_count_offset));
   if (function_mode_ == JS_FUNCTION_STUB_MODE) {
     __ Add(x1, x1, 1);
   }
   masm->LeaveFrame(StackFrame::STUB_FAILURE_TRAMPOLINE);
   __ Drop(x1);
   // Return to IC Miss stub, continuation still on stack.
@@ skipping 815 matching lines @@
                               MemOperand(fp, 6 * kPointerSize),
                               NULL);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM64