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 package org.graalvm.compiler.hotspot.replacements;
24
25 import static org.graalvm.compiler.hotspot.replacements.UnsafeAccess.UNSAFE;
26 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER;
27
28 import org.graalvm.compiler.api.replacements.Fold;
29 import org.graalvm.compiler.api.replacements.Snippet;
30 import org.graalvm.compiler.api.replacements.Snippet.ConstantParameter;
31 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
32 import org.graalvm.compiler.nodes.NamedLocationIdentity;
33 import org.graalvm.compiler.nodes.debug.StringToBytesNode;
34 import org.graalvm.compiler.nodes.java.NewArrayNode;
35 import org.graalvm.compiler.nodes.spi.LoweringTool;
36 import org.graalvm.compiler.options.OptionValues;
37 import org.graalvm.compiler.replacements.SnippetTemplate;
38 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates;
39 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments;
40 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo;
41 import org.graalvm.compiler.replacements.Snippets;
42 import org.graalvm.compiler.replacements.nodes.CStringConstant;
43 import org.graalvm.compiler.word.Word;
44 import org.graalvm.word.LocationIdentity;
45
46 import jdk.vm.ci.code.TargetDescription;
47 import jdk.vm.ci.meta.JavaKind;
48
49 /**
50 * The {@code StringToBytesSnippets} contains a snippet for lowering {@link StringToBytesNode}.
57 static long arrayBaseOffset() {
58 return UNSAFE.arrayBaseOffset(char[].class);
59 }
60
61 @Snippet
62 public static byte[] transform(@ConstantParameter String compilationTimeString) {
63 int i = compilationTimeString.length();
64 byte[] array = (byte[]) NewArrayNode.newUninitializedArray(byte.class, i);
65 Word cArray = CStringConstant.cstring(compilationTimeString);
66 while (i-- > 0) {
67 // array[i] = cArray.readByte(i);
68 UNSAFE.putByte(array, arrayBaseOffset() + i, cArray.readByte(i, CSTRING_LOCATION));
69 }
70 return array;
71 }
72
73 public static class Templates extends AbstractTemplates {
74
75 private final SnippetInfo create;
76
77 public Templates(OptionValues options, HotSpotProviders providers, TargetDescription target) {
78 super(options, providers, providers.getSnippetReflection(), target);
79 create = snippet(StringToBytesSnippets.class, "transform", NamedLocationIdentity.getArrayLocation(JavaKind.Byte));
80 }
81
82 public void lower(StringToBytesNode stringToBytesNode, LoweringTool tool) {
83 Arguments args = new Arguments(create, stringToBytesNode.graph().getGuardsStage(), tool.getLoweringStage());
84 args.addConst("compilationTimeString", stringToBytesNode.getValue());
85 SnippetTemplate template = template(args);
86 template.instantiate(providers.getMetaAccess(), stringToBytesNode, DEFAULT_REPLACER, args);
87 }
88
89 }
90
91 }
|
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 package org.graalvm.compiler.hotspot.replacements;
24
25 import static org.graalvm.compiler.hotspot.replacements.UnsafeAccess.UNSAFE;
26 import static org.graalvm.compiler.replacements.SnippetTemplate.DEFAULT_REPLACER;
27
28 import org.graalvm.compiler.api.replacements.Fold;
29 import org.graalvm.compiler.api.replacements.Snippet;
30 import org.graalvm.compiler.api.replacements.Snippet.ConstantParameter;
31 import org.graalvm.compiler.debug.DebugHandlersFactory;
32 import org.graalvm.compiler.hotspot.meta.HotSpotProviders;
33 import org.graalvm.compiler.nodes.NamedLocationIdentity;
34 import org.graalvm.compiler.nodes.debug.StringToBytesNode;
35 import org.graalvm.compiler.nodes.java.NewArrayNode;
36 import org.graalvm.compiler.nodes.spi.LoweringTool;
37 import org.graalvm.compiler.options.OptionValues;
38 import org.graalvm.compiler.replacements.SnippetTemplate;
39 import org.graalvm.compiler.replacements.SnippetTemplate.AbstractTemplates;
40 import org.graalvm.compiler.replacements.SnippetTemplate.Arguments;
41 import org.graalvm.compiler.replacements.SnippetTemplate.SnippetInfo;
42 import org.graalvm.compiler.replacements.Snippets;
43 import org.graalvm.compiler.replacements.nodes.CStringConstant;
44 import org.graalvm.compiler.word.Word;
45 import org.graalvm.word.LocationIdentity;
46
47 import jdk.vm.ci.code.TargetDescription;
48 import jdk.vm.ci.meta.JavaKind;
49
50 /**
51 * The {@code StringToBytesSnippets} contains a snippet for lowering {@link StringToBytesNode}.
58 static long arrayBaseOffset() {
59 return UNSAFE.arrayBaseOffset(char[].class);
60 }
61
62 @Snippet
63 public static byte[] transform(@ConstantParameter String compilationTimeString) {
64 int i = compilationTimeString.length();
65 byte[] array = (byte[]) NewArrayNode.newUninitializedArray(byte.class, i);
66 Word cArray = CStringConstant.cstring(compilationTimeString);
67 while (i-- > 0) {
68 // array[i] = cArray.readByte(i);
69 UNSAFE.putByte(array, arrayBaseOffset() + i, cArray.readByte(i, CSTRING_LOCATION));
70 }
71 return array;
72 }
73
74 public static class Templates extends AbstractTemplates {
75
76 private final SnippetInfo create;
77
78 public Templates(OptionValues options, Iterable<DebugHandlersFactory> factories, HotSpotProviders providers, TargetDescription target) {
79 super(options, factories, providers, providers.getSnippetReflection(), target);
80 create = snippet(StringToBytesSnippets.class, "transform", NamedLocationIdentity.getArrayLocation(JavaKind.Byte));
81 }
82
83 public void lower(StringToBytesNode stringToBytesNode, LoweringTool tool) {
84 Arguments args = new Arguments(create, stringToBytesNode.graph().getGuardsStage(), tool.getLoweringStage());
85 args.addConst("compilationTimeString", stringToBytesNode.getValue());
86 SnippetTemplate template = template(stringToBytesNode.getDebug(), args);
87 template.instantiate(providers.getMetaAccess(), stringToBytesNode, DEFAULT_REPLACER, args);
88 }
89
90 }
91
92 }
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