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comparison graal/com.oracle.graal.compiler.hsail.test/src/com/oracle/graal/compiler/hsail/test/IntLookupSwitchTest.java @ 14906:f3a5036cc13c

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javadoc fixes javadoc has become stricter in jdk8
author Bernhard Urban <bernhard.urban@jku.at>
date Mon, 31 Mar 2014 20:51:09 +0200
parents f705fc04faa5
children 64dcb92ee75a
comparison
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14905:b7afc71535d3 14906:f3a5036cc13c
27 import com.oracle.graal.compiler.hsail.test.infra.*; 27 import com.oracle.graal.compiler.hsail.test.infra.*;
28 28
29 /** 29 /**
30 * Tests a switch statement with integer keys. This test exercises the LOOKUPSWITCH Java bytecode 30 * Tests a switch statement with integer keys. This test exercises the LOOKUPSWITCH Java bytecode
31 * instruction. 31 * instruction.
32 * 32 *
33 * The HSAIL code generated for this example is a series of cascading compare and branch 33 * The HSAIL code generated for this example is a series of cascading compare and branch
34 * instructions for each case of the switch. 34 * instructions for each case of the switch.
35 * 35 *
36 * These HSAIL instructions have the following form: 36 * These HSAIL instructions have the following form:
37 * 37 *
38 * 38 *
39 * //Check whether the key matches the key constant of the case. Store the result of the compare (0 39 * //Check whether the key matches the key constant of the case. Store the result of the compare (0
40 * or 1) in the control register c0. 40 * or 1) in the control register c0.
41 * 41 *
42 * cmp_eq $c0 <source register>, <key constant for case statement> 42 * cmp_eq $c0 &lt;source register&gt;, &lt;key constant for case statement&gt;
43 * 43 *
44 * //Branch to the corresponding label of that case if there's a match. 44 * //Branch to the corresponding label of that case if there's a match.
45 * 45 *
46 * cbr $c0 <branch target for that case> 46 * cbr $c0 &lt;branch target for that case&gt;
47 */ 47 */
48 public class IntLookupSwitchTest extends GraalKernelTester { 48 public class IntLookupSwitchTest extends GraalKernelTester {
49 49
50 static final int num = 20; 50 static final int num = 20;
51 // Output array storing the results of the operations. 51 // Output array storing the results of the operations.
52 @Result protected int[] outArray = new int[num]; 52 @Result protected int[] outArray = new int[num];
53 53
54 /** 54 /**
55 * The static "kernel" method we will be testing. This method writes to an output array based on 55 * The static "kernel" method we will be testing. This method writes to an output array based on
56 * switching on an element of an input array. By convention the gid is the last parameter. 56 * switching on an element of an input array. By convention the gid is the last parameter.
57 * 57 *
58 * Note: Because the key constants used in the cases of the switch are sparsely distributed, the 58 * Note: Because the key constants used in the cases of the switch are sparsely distributed, the
59 * Java source compiler compiles this example into the LOOKUPSWITCH bytecode instruction. So 59 * Java source compiler compiles this example into the LOOKUPSWITCH bytecode instruction. So
60 * this is really a test to see whether the HSAIL backend is appropriately handling the 60 * this is really a test to see whether the HSAIL backend is appropriately handling the
61 * LOOKUPSWITCH bytecode. 61 * LOOKUPSWITCH bytecode.
62 * 62 *
63 * @param out the output array 63 * @param out the output array
64 * @param ina the input array 64 * @param ina the input array
65 * @param gid the parameter used to index into the input and output arrays 65 * @param gid the parameter used to index into the input and output arrays
66 */ 66 */
67 public static void run(int[] out, int[] ina, int gid) { 67 public static void run(int[] out, int[] ina, int gid) {
100 super.testGeneratedHsail(); 100 super.testGeneratedHsail();
101 } 101 }
102 102
103 /** 103 /**
104 * Initializes the input and output arrays passed to the run routine. 104 * Initializes the input and output arrays passed to the run routine.
105 * 105 *
106 * @param in the input array 106 * @param in the input array
107 */ 107 */
108 void setupArrays(int[] in) { 108 void setupArrays(int[] in) {
109 for (int i = 0; i < num; i++) { 109 for (int i = 0; i < num; i++) {
110 in[i] = i < num / 2 ? i : -i; 110 in[i] = i < num / 2 ? i : -i;