Mercurial > hg > truffle
annotate src/share/vm/runtime/simpleThresholdPolicy.inline.hpp @ 21445:567fd5394b80
NodeLIRBuilder#getExactPhiKind: handle non-java constants.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Thu, 21 May 2015 11:51:32 +0200 |
parents | 7848fc12602b |
children | be896a1983c0 |
rev | line source |
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1783 | 1 /* |
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coleenp
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1972
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2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
1783 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
20 * or visit www.oracle.com if you need additional information or have any | |
21 * questions. | |
22 * | |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP |
26 #define SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP | |
1783 | 27 |
28 template<CompLevel level> | |
29 bool SimpleThresholdPolicy::call_predicate_helper(int i, int b, double scale) { | |
30 switch(level) { | |
31 case CompLevel_none: | |
32 case CompLevel_limited_profile: | |
33 return (i > Tier3InvocationThreshold * scale) || | |
34 (i > Tier3MinInvocationThreshold * scale && i + b > Tier3CompileThreshold * scale); | |
35 case CompLevel_full_profile: | |
36 return (i > Tier4InvocationThreshold * scale) || | |
37 (i > Tier4MinInvocationThreshold * scale && i + b > Tier4CompileThreshold * scale); | |
38 } | |
39 return true; | |
40 } | |
41 | |
42 template<CompLevel level> | |
43 bool SimpleThresholdPolicy::loop_predicate_helper(int i, int b, double scale) { | |
44 switch(level) { | |
45 case CompLevel_none: | |
46 case CompLevel_limited_profile: | |
47 return b > Tier3BackEdgeThreshold * scale; | |
48 case CompLevel_full_profile: | |
49 return b > Tier4BackEdgeThreshold * scale; | |
50 } | |
51 return true; | |
52 } | |
53 | |
54 // Simple methods are as good being compiled with C1 as C2. | |
55 // Determine if a given method is such a case. | |
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56 bool SimpleThresholdPolicy::is_trivial(Method* method) { |
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57 if (method->is_accessor() || |
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58 method->is_constant_getter()) { |
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59 return true; |
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60 } |
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61 #ifdef COMPILERGRAAL |
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62 if (TieredCompilation && GraalCompileWithC1Only && |
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63 SystemDictionary::graal_loader() != NULL && |
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64 method->method_holder()->class_loader() == SystemDictionary::graal_loader()) { |
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65 return true; |
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66 } |
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67 #endif |
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68 if (method->has_loops() || method->code_size() >= 15) { |
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69 return false; |
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70 } |
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71 MethodData* mdo = method->method_data(); |
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72 if (mdo != NULL && !mdo->would_profile() && |
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73 (method->code_size() < 5 || (mdo->num_blocks() < 4))) { |
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74 return true; |
1783 | 75 } |
76 return false; | |
77 } | |
1972 | 78 |
79 #endif // SHARE_VM_RUNTIME_SIMPLETHRESHOLDPOLICY_INLINE_HPP |