src/share/vm/runtime/sharedRuntime.cpp

rev 7386 : 8068945: Use RBP register as proper frame pointer in JIT compiled code on x86
Summary: Introduce the PreserveFramePointer flag to control if RBP is used as the frame pointer or as a general purpose register.
Reviewed-by: kvn, roland, dlong, enevill, shade

*** 1228,1238 ****
      tty->print_cr(" at pc: " INTPTR_FORMAT " to code: " INTPTR_FORMAT, caller_frame.pc(), callee_method->code());
    }
  #endif
  
    // JSR 292 key invariant:
!   // If the resolved method is a MethodHandle invoke target the call
    // site must be a MethodHandle call site, because the lambda form might tail-call
    // leaving the stack in a state unknown to either caller or callee
    // TODO detune for now but we might need it again
  //  assert(!callee_method->is_compiled_lambda_form() ||
  //         caller_nm->is_method_handle_return(caller_frame.pc()), "must be MH call site");
--- 1228,1238 ----
      tty->print_cr(" at pc: " INTPTR_FORMAT " to code: " INTPTR_FORMAT, caller_frame.pc(), callee_method->code());
    }
  #endif
  
    // JSR 292 key invariant:
!   // If the resolved method is a MethodHandle invoke target, the call
    // site must be a MethodHandle call site, because the lambda form might tail-call
    // leaving the stack in a state unknown to either caller or callee
    // TODO detune for now but we might need it again
  //  assert(!callee_method->is_compiled_lambda_form() ||
  //         caller_nm->is_method_handle_return(caller_frame.pc()), "must be MH call site");