src/share/vm/code/icBuffer.cpp

rev 2893 : 7121756: Improve C1 inlining policy by using profiling at call sites
Summary: profile based recompilation of methods with C1 with more inlining.
Reviewed-by:

*** 66,76 ****
      CompiledIC *ic = CompiledIC_at(ic_site());
      assert(CodeCache::find_nmethod(ic->instruction_address()) != NULL, "inline cache in non-nmethod?");
  
      assert(this == ICStub_from_destination_address(ic->stub_address()), "wrong owner of ic buffer");
      ic->set_cached_oop(cached_oop());
!     ic->set_ic_destination(destination());
    }
  }
  
  
  address ICStub::destination() const {
--- 66,76 ----
      CompiledIC *ic = CompiledIC_at(ic_site());
      assert(CodeCache::find_nmethod(ic->instruction_address()) != NULL, "inline cache in non-nmethod?");
  
      assert(this == ICStub_from_destination_address(ic->stub_address()), "wrong owner of ic buffer");
      ic->set_cached_oop(cached_oop());
!     ic->set_ic_destination(destination(), ic->is_profiled());
    }
  }
  
  
  address ICStub::destination() const {
*** 177,187 ****
  void InlineCacheBuffer_init() {
    InlineCacheBuffer::initialize();
  }
  
  
! void InlineCacheBuffer::create_transition_stub(CompiledIC *ic, oop cached_oop, address entry) {
    assert(!SafepointSynchronize::is_at_safepoint(), "should not be called during a safepoint");
    assert (CompiledIC_lock->is_locked(), "");
    assert(cached_oop == NULL || cached_oop->is_perm(), "must belong to perm. space");
    if (TraceICBuffer) { tty->print_cr("  create transition stub for " INTPTR_FORMAT, ic->instruction_address()); }
  
--- 177,187 ----
  void InlineCacheBuffer_init() {
    InlineCacheBuffer::initialize();
  }
  
  
! void InlineCacheBuffer::create_transition_stub(CompiledIC *ic, oop cached_oop, address entry, bool set_profiled) {
    assert(!SafepointSynchronize::is_at_safepoint(), "should not be called during a safepoint");
    assert (CompiledIC_lock->is_locked(), "");
    assert(cached_oop == NULL || cached_oop->is_perm(), "must belong to perm. space");
    if (TraceICBuffer) { tty->print_cr("  create transition stub for " INTPTR_FORMAT, ic->instruction_address()); }
  
*** 194,204 ****
    // allocate and initialize new "out-of-line" inline-cache
    ICStub* ic_stub = get_next_stub();
    ic_stub->set_stub(ic, cached_oop, entry);
  
    // Update inline cache in nmethod to point to new "out-of-line" allocated inline cache
!   ic->set_ic_destination(ic_stub->code_begin());
  
    set_next_stub(new_ic_stub()); // can cause safepoint synchronization
  }
  
  
--- 194,204 ----
    // allocate and initialize new "out-of-line" inline-cache
    ICStub* ic_stub = get_next_stub();
    ic_stub->set_stub(ic, cached_oop, entry);
  
    // Update inline cache in nmethod to point to new "out-of-line" allocated inline cache
!   ic->set_ic_destination(ic_stub->code_begin(), set_profiled);
  
    set_next_stub(new_ic_stub()); // can cause safepoint synchronization
  }