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comparison graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMethodDataAccessor.java @ 14706:579a2a124c95

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add HotSpotMethodDataAccessor.Tag enum and dummy entries to PROFILE_DATA_ACCESSORS for new profile types
author twisti
date Thu, 20 Mar 2014 13:41:32 -0700
parents f9d908fb3492
children f3a5036cc13c
comparison
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14705:7986af88b782 14706:579a2a124c95
20 * or visit www.oracle.com if you need additional information or have any 20 * or visit www.oracle.com if you need additional information or have any
21 * questions. 21 * questions.
22 */ 22 */
23 package com.oracle.graal.hotspot.meta; 23 package com.oracle.graal.hotspot.meta;
24 24
25 import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
26
25 import com.oracle.graal.api.meta.*; 27 import com.oracle.graal.api.meta.*;
26 import com.oracle.graal.api.meta.ProfilingInfo.TriState; 28 import com.oracle.graal.api.meta.ProfilingInfo.TriState;
29 import com.oracle.graal.graph.*;
30 import com.oracle.graal.hotspot.*;
27 31
28 /** 32 /**
29 * Interface for accessor objects that encapsulate the logic for accessing the different kinds of 33 * Interface for accessor objects that encapsulate the logic for accessing the different kinds of
30 * data in a HotSpot methodDataOop. This interface is similar to the interface {@link ProfilingInfo} 34 * data in a HotSpot methodDataOop. This interface is similar to the interface {@link ProfilingInfo}
31 * , but most methods require a MethodDataObject and the exact position within the methodData. 35 * , but most methods require a MethodDataObject and the exact position within the methodData.
32 */ 36 */
33 public interface HotSpotMethodDataAccessor { 37 public interface HotSpotMethodDataAccessor {
34 38
35 /** 39 /**
36 * Returns the tag stored in the LayoutData header. 40 * {@code DataLayout} tag values.
41 */
42 enum Tag {
43 No(config().dataLayoutNoTag),
44 BitData(config().dataLayoutBitDataTag),
45 CounterData(config().dataLayoutCounterDataTag),
46 JumpData(config().dataLayoutJumpDataTag),
47 ReceiverTypeData(config().dataLayoutReceiverTypeDataTag),
48 VirtualCallData(config().dataLayoutVirtualCallDataTag),
49 RetData(config().dataLayoutRetDataTag),
50 BranchData(config().dataLayoutBranchDataTag),
51 MultiBranchData(config().dataLayoutMultiBranchDataTag),
52 ArgInfoData(config().dataLayoutArgInfoDataTag),
53 CallTypeData(config().dataLayoutCallTypeDataTag),
54 VirtualCallTypeData(config().dataLayoutVirtualCallTypeDataTag),
55 ParametersTypeData(config().dataLayoutParametersTypeDataTag),
56 SpeculativeTrapData(config().dataLayoutSpeculativeTrapDataTag);
57
58 private final int value;
59
60 private Tag(int value) {
61 this.value = value;
62 }
63
64 public int getValue() {
65 return value;
66 }
67
68 private static HotSpotVMConfig config() {
69 return runtime().getConfig();
70 }
71
72 public static Tag getEnum(int value) {
73 for (Tag e : values()) {
74 if (e.value == value) {
75 return e;
76 }
77 }
78 throw GraalInternalError.shouldNotReachHere("unknown enum value " + value);
79 }
80 }
81
82 /**
83 * Returns the {@link Tag} stored in the LayoutData header.
37 * 84 *
38 * @return An integer >= 0 or -1 if not supported. 85 * @return tag stored in the LayoutData header
39 */ 86 */
40 int getTag(); 87 Tag getTag();
41 88
42 /** 89 /**
43 * Returns the BCI stored in the LayoutData header. 90 * Returns the BCI stored in the LayoutData header.
44 * 91 *
45 * @return An integer >= 0 and <= Short.MAX_VALUE, or -1 if not supported. 92 * @return An integer >= 0 and <= Short.MAX_VALUE, or -1 if not supported.