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

src/a64/macro-assembler-a64.cc

Index: src/a64/macro-assembler-a64.cc
diff --git a/src/a64/macro-assembler-a64.cc b/src/a64/macro-assembler-a64.cc
index 7d14b249008639a711221cd8289a6688e16a2f07..c6823bd674c4935fd5c662eeb1a970fdd2fdbad4 100644
--- a/src/a64/macro-assembler-a64.cc
+++ b/src/a64/macro-assembler-a64.cc
@@ -3695,6 +3695,18 @@ void MacroAssembler::PushSafepointRegisters() {
 }
 
 
+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);