A64: Add support for floating-point registers in PushSafepointRegistersScope.

src/a64/macro-assembler-a64.cc

 // Copyright 2013 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 3677 matching lines @@
 void MacroAssembler::PushSafepointRegisters() {
   // Safepoints expect a block of kNumSafepointRegisters values on the stack, so
   // adjust the stack for unsaved registers.
   const int num_unsaved = kNumSafepointRegisters - kNumSafepointSavedRegisters;
   ASSERT(num_unsaved >= 0);
   Claim(num_unsaved);
   PushXRegList(kSafepointSavedRegisters);
 }
 
 
+void MacroAssembler::PushSafepointFPRegisters() {
+  PushCPURegList(CPURegList(CPURegister::kFPRegister, kDRegSize,
+                            FPRegister::kAllocatableFPRegisters));
+}
+
+
+void MacroAssembler::PopSafepointFPRegisters() {
+  PopCPURegList(CPURegList(CPURegister::kFPRegister, kDRegSize,
+                           FPRegister::kAllocatableFPRegisters));
+}
+
+
 int MacroAssembler::SafepointRegisterStackIndex(int reg_code) {
   // Make sure the safepoint registers list is what we expect.
   ASSERT(CPURegList::GetSafepointSavedRegisters().list() == 0x6ffcffff);
 
   // Safepoint registers are stored contiguously on the stack, but not all the
   // registers are saved. The following registers are excluded:
   //  - x16 and x17 (ip0 and ip1) because they shouldn't be preserved outside of
   //    the macro assembler.
   //  - x28 (jssp) because JS stack pointer doesn't need to be included in
   //    safepoint registers.
@@ skipping 902 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64