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src/hotspot/cpu/sparc/compiledIC_sparc.cpp

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  89 int CompiledStaticCall::reloc_to_interp_stub() {
  90   return 10;  // 4 in emit_java_to_interp + 1 in Java_Static_Call
  91 }
  92 
  93 void CompiledDirectStaticCall::set_to_interpreted(const methodHandle& callee, address entry) {
  94   address stub = find_stub(/*is_aot*/ false);
  95   guarantee(stub != NULL, "stub not found");
  96 
  97   if (TraceICs) {
  98     ResourceMark rm;
  99     tty->print_cr("CompiledDirectStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
 100                   p2i(instruction_address()),
 101                   callee->name_and_sig_as_C_string());
 102   }
 103 
 104   // Creation also verifies the object.
 105   NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
 106   NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());
 107 
 108 #ifdef ASSERT
 109   // read the value once
 110   volatile intptr_t data = method_holder->data();
 111   volatile address destination = jump->jump_destination();
 112   assert(data == 0 || data == (intptr_t)callee(),





 113          "a) MT-unsafe modification of inline cache");


 114   assert(destination == (address)-1 || destination == entry,
 115          "b) MT-unsafe modification of inline cache");
 116 #endif
 117 
 118   // Update stub.
 119   method_holder->set_data((intptr_t)callee());
 120   jump->set_jump_destination(entry);
 121 
 122   // Update jump to call.
 123   set_destination_mt_safe(stub);
 124 }
 125 
 126 void CompiledDirectStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
 127   // Reset stub.
 128   address stub = static_stub->addr();
 129   assert(stub != NULL, "stub not found");
 130   assert(CompiledICLocker::is_safe(stub), "mt unsafe call");
 131   // Creation also verifies the object.
 132   NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
 133   NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());




  89 int CompiledStaticCall::reloc_to_interp_stub() {
  90   return 10;  // 4 in emit_java_to_interp + 1 in Java_Static_Call
  91 }
  92 
  93 void CompiledDirectStaticCall::set_to_interpreted(const methodHandle& callee, address entry) {
  94   address stub = find_stub(/*is_aot*/ false);
  95   guarantee(stub != NULL, "stub not found");
  96 
  97   if (TraceICs) {
  98     ResourceMark rm;
  99     tty->print_cr("CompiledDirectStaticCall@" INTPTR_FORMAT ": set_to_interpreted %s",
 100                   p2i(instruction_address()),
 101                   callee->name_and_sig_as_C_string());
 102   }
 103 
 104   // Creation also verifies the object.
 105   NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
 106   NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());
 107 
 108 #ifdef ASSERT
 109   // A generated lambda form might be deleted from the Lambdaform
 110   // cache in MethodTypeForm.  If a jit compiled lambdaform method
 111   // becomes not entrant and the cache access returns null, the new
 112   // resolve will lead to a new generated LambdaForm.
 113   Method* old_method = reinterpret_cast<Method*>(method_holder->data());
 114   assert(old_method == NULL || old_method == callee() ||
 115          callee->is_compiled_lambda_form() ||
 116          !old_method->method_holder()->is_loader_alive() ||
 117          old_method->is_old(),  // may be race patching deoptimized nmethod due to redefinition.
 118          "a) MT-unsafe modification of inline cache");
 119 
 120   address destination = jump->jump_destination();
 121   assert(destination == (address)-1 || destination == entry,
 122          "b) MT-unsafe modification of inline cache");
 123 #endif
 124 
 125   // Update stub.
 126   method_holder->set_data((intptr_t)callee());
 127   jump->set_jump_destination(entry);
 128 
 129   // Update jump to call.
 130   set_destination_mt_safe(stub);
 131 }
 132 
 133 void CompiledDirectStaticCall::set_stub_to_clean(static_stub_Relocation* static_stub) {
 134   // Reset stub.
 135   address stub = static_stub->addr();
 136   assert(stub != NULL, "stub not found");
 137   assert(CompiledICLocker::is_safe(stub), "mt unsafe call");
 138   // Creation also verifies the object.
 139   NativeMovConstReg* method_holder = nativeMovConstReg_at(stub);
 140   NativeJump*        jump          = nativeJump_at(method_holder->next_instruction_address());


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