hotspot/src/share/vm/code/compiledMethod.inline.hpp
author redestad
Tue, 04 Jul 2017 18:36:50 +0200
changeset 46623 261b9d05b79d
permissions -rw-r--r--
8183299: Improve inlining of CompiledMethod methods into frame::sender Reviewed-by: kvn, neliasso

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP
#define SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP

#include "code/compiledMethod.hpp"
#include "code/nativeInst.hpp"
#include "runtime/frame.hpp"

// When using JVMCI the address might be off by the size of a call instruction.
inline bool CompiledMethod::is_deopt_entry(address pc) {
  return pc == deopt_handler_begin()
#if INCLUDE_JVMCI
    || (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))
#endif
    ;
}


// -----------------------------------------------------------------------------
// CompiledMethod::get_deopt_original_pc
//
// Return the original PC for the given PC if:
// (a) the given PC belongs to a nmethod and
// (b) it is a deopt PC

inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {
  if (fr->cb() == NULL)  return NULL;

  CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();
  if (cm != NULL && cm->is_deopt_pc(fr->pc()))
    return cm->get_original_pc(fr);

  return NULL;
}

#endif //SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP