aoqi@0: /*
aoqi@0:  * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  *
aoqi@0:  */
aoqi@0: 
aoqi@0: #ifndef SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP
aoqi@0: #define SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP
aoqi@0: 
aoqi@0: template<CompLevel level>
aoqi@0: bool SimpleThresholdPolicy::call_predicate_helper(int i, int b, double scale) {
aoqi@0:   switch(level) {
aoqi@0:   case CompLevel_none:
aoqi@0:   case CompLevel_limited_profile:
aoqi@0:     return (i > Tier3InvocationThreshold * scale) ||
aoqi@0:            (i > Tier3MinInvocationThreshold * scale && i + b > Tier3CompileThreshold * scale);
aoqi@0:   case CompLevel_full_profile:
aoqi@0:    return (i > Tier4InvocationThreshold * scale) ||
aoqi@0:           (i > Tier4MinInvocationThreshold * scale && i + b > Tier4CompileThreshold * scale);
aoqi@0:   }
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: template<CompLevel level>
aoqi@0: bool SimpleThresholdPolicy::loop_predicate_helper(int i, int b, double scale) {
aoqi@0:   switch(level) {
aoqi@0:   case CompLevel_none:
aoqi@0:   case CompLevel_limited_profile:
aoqi@0:     return b > Tier3BackEdgeThreshold * scale;
aoqi@0:   case CompLevel_full_profile:
aoqi@0:     return b > Tier4BackEdgeThreshold * scale;
aoqi@0:   }
aoqi@0:   return true;
aoqi@0: }
aoqi@0: 
aoqi@0: // Simple methods are as good being compiled with C1 as C2.
aoqi@0: // Determine if a given method is such a case.
aoqi@0: bool SimpleThresholdPolicy::is_trivial(Method* method) {
thartmann@7365:   if (method->is_accessor() ||
thartmann@7365:       method->is_constant_getter()) {
thartmann@7365:     return true;
thartmann@7365:   }
thartmann@7365:   if (method->has_loops() || method->code_size() >= 15) {
thartmann@7365:     return false;
thartmann@7365:   }
thartmann@7365:   MethodData* mdo = method->method_data();
thartmann@7365:   if (mdo != NULL && !mdo->would_profile() &&
thartmann@7365:       (method->code_size() < 5  || (mdo->num_blocks() < 4))) {
thartmann@7365:     return true;
aoqi@0:   }
aoqi@0:   return false;
aoqi@0: }
aoqi@0: 
aoqi@0: #endif // SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP