Out-of-line constant pool on Arm: Stage 3 - Set Constant Pool Pointer on Function Entry

src/arm/macro-assembler-arm.h

 // 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
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       } else {
         Pop(src3, src4, cond);
         ldm(ia_w, sp, src1.bit() | src2.bit(), cond);
       }
     } else {
       Pop(src2, src3, src4, cond);
       ldr(src1, MemOperand(sp, 4, PostIndex), cond);
     }
   }
 
+  // Push a fixed frame, consisting of lr, fp, context, constant pool
+  // (if FLAG_enable_ool_constant_pool) and JS function / marker id if
+  // marker_reg is a valid register.
+  void PushFixedFrame(Register marker_reg = no_reg);
+  void PopFixedFrame(Register marker_reg = no_reg);
+
   // Push and pop the registers that can hold pointers, as defined by the
   // RegList constant kSafepointSavedRegisters.
   void PushSafepointRegisters();
   void PopSafepointRegisters();
   void PushSafepointRegistersAndDoubles();
   void PopSafepointRegistersAndDoubles();
   // Store value in register src in the safepoint stack slot for
   // register dst.
   void StoreToSafepointRegisterSlot(Register src, Register dst);
   void StoreToSafepointRegistersAndDoublesSlot(Register src, Register dst);
@@ skipping 136 matching lines @@
   void LoadGlobalFunctionInitialMap(Register function,
                                     Register map,
                                     Register scratch);
 
   void InitializeRootRegister() {
     ExternalReference roots_array_start =
         ExternalReference::roots_array_start(isolate());
     mov(kRootRegister, Operand(roots_array_start));
   }
 
+  // Restores the pp registers from the stack frame.
+  void RestoreConstantPoolPointer();
+
+  // Loads the pp register with the value for the given JSFunction.
+  void LoadConstantPoolPointer(Register js_function);
+
   // ---------------------------------------------------------------------------
   // JavaScript invokes
 
   // Set up call kind marking in ecx. The method takes ecx as an
   // explicit first parameter to make the code more readable at the
   // call sites.
   void SetCallKind(Register dst, CallKind kind);
 
   // Invoke the JavaScript function code by either calling or jumping.
   void InvokeCode(Register code,
@@ skipping 934 matching lines @@
 #define __FILE_LINE__ __FILE__ ":" CODE_COVERAGE_TOSTRING(__LINE__)
 #define ACCESS_MASM(masm) masm->stop(__FILE_LINE__); masm->
 #else
 #define ACCESS_MASM(masm) masm->
 #endif
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARM_MACRO_ASSEMBLER_ARM_H_