A64: Implement Peek/PokePair

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 766 matching lines @@
     ASSERT(offset.immediate() >= 0);
   } else if (emit_debug_code()) {
     Cmp(xzr, offset);
     Check(le, kStackAccessBelowStackPointer);
   }
 
   Ldr(dst, MemOperand(StackPointer(), offset));
 }
 
 
+void MacroAssembler::PokePair(const CPURegister& src1,
+                              const CPURegister& src2,
+                              int offset) {
+  ASSERT(AreSameSizeAndType(src1, src2));
+  ASSERT((offset >= 0) && ((offset % src1.SizeInBytes()) == 0));
+  Stp(src1, src2, MemOperand(StackPointer(), offset));
+}
+
+
+void MacroAssembler::PeekPair(const CPURegister& dst1,
+                              const CPURegister& dst2,
+                              int offset) {
+  ASSERT(AreSameSizeAndType(dst1, dst2));
+  ASSERT((offset >= 0) && ((offset % dst1.SizeInBytes()) == 0));
+  Ldp(dst1, dst2, MemOperand(StackPointer(), offset));
+}
+
+
 void MacroAssembler::PushCalleeSavedRegisters() {
   // Ensure that the macro-assembler doesn't use any scratch registers.
   InstructionAccurateScope scope(this);
 
   // This method must not be called unless the current stack pointer is the
   // system stack pointer (csp).
   ASSERT(csp.Is(StackPointer()));
 
   MemOperand tos(csp, -2 * kXRegSizeInBytes, PreIndex);
 
@@ skipping 3824 matching lines @@
   }
 }
 
 
 #undef __
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_A64