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comparison c1x4hotspotsrc/HotSpotVM/src/com/sun/hotspot/c1x/HotSpotXirGenerator.java @ 2055:99ad52189524

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Refactorings to get towards less CRI overhead.
author Thomas Wuerthinger <wuerthinger@ssw.jku.at>
date Thu, 13 Jan 2011 17:45:17 +0100
parents 00bc9eaf0e24
children 89bf01e6b049
comparison
equal deleted inserted replaced
2054:3c0a889a176b 2055:99ad52189524
35 import com.sun.cri.xir.*; 35 import com.sun.cri.xir.*;
36 import com.sun.cri.xir.CiXirAssembler.XirLabel; 36 import com.sun.cri.xir.CiXirAssembler.XirLabel;
37 import com.sun.cri.xir.CiXirAssembler.XirMark; 37 import com.sun.cri.xir.CiXirAssembler.XirMark;
38 import com.sun.cri.xir.CiXirAssembler.XirOperand; 38 import com.sun.cri.xir.CiXirAssembler.XirOperand;
39 import com.sun.cri.xir.CiXirAssembler.XirParameter; 39 import com.sun.cri.xir.CiXirAssembler.XirParameter;
40 import com.sun.cri.xir.CiXirAssembler.XirTemp;
40 41
41 /** 42 /**
42 * 43 *
43 * @author Thomas Wuerthinger, Lukas Stadler 44 * @author Thomas Wuerthinger, Lukas Stadler
44 */ 45 */
373 asm.nop(1); 374 asm.nop(1);
374 asm.mark(MARK_IMPLICIT_NULL); 375 asm.mark(MARK_IMPLICIT_NULL);
375 } 376 }
376 asm.pload(kind, result, object, fieldOffset, is(NULL_CHECK, flags)); 377 asm.pload(kind, result, object, fieldOffset, is(NULL_CHECK, flags));
377 return asm.finishTemplate("getfield<" + kind + ">"); 378 return asm.finishTemplate("getfield<" + kind + ">");
379 }
380 };
381
382 private KindTemplates writeBarrierTemplate = new KindTemplates() {
383
384 @Override
385 protected XirTemplate create(CiXirAssembler asm, long flags, CiKind kind) {
386 asm.restart(CiKind.Void);
387 XirParameter object = asm.createInputParameter("object", CiKind.Object);
388
389 // Need temp operand, because the write barrier destroys the object pointer.
390 XirOperand temp = asm.createTemp("temp", CiKind.Object);
391 asm.mov(temp, object);
392
393 writeBarrier(asm, temp);
394 return asm.finishTemplate("writeBarrier");
378 } 395 }
379 }; 396 };
380 397
381 private KindTemplates putFieldTemplates = new KindTemplates(WRITE_BARRIER, NULL_CHECK, UNRESOLVED) { 398 private KindTemplates putFieldTemplates = new KindTemplates(WRITE_BARRIER, NULL_CHECK, UNRESOLVED) {
382 399
883 } 900 }
884 return new XirSnippet(getFieldTemplates.get(site, field.kind(), UNRESOLVED), object); 901 return new XirSnippet(getFieldTemplates.get(site, field.kind(), UNRESOLVED), object);
885 } 902 }
886 903
887 @Override 904 @Override
905 public XirSnippet genWriteBarrier(XirArgument object) {
906 return new XirSnippet(writeBarrierTemplate.get(null, CiKind.Void), object);
907 }
908
909 @Override
888 public XirSnippet genPutField(XirSite site, XirArgument object, RiField field, XirArgument value) { 910 public XirSnippet genPutField(XirSite site, XirArgument object, RiField field, XirArgument value) {
889 if (field.isResolved()) { 911 if (field.isResolved()) {
890 return new XirSnippet(putFieldTemplates.get(site, field.kind()), object, value, XirArgument.forInt(((HotSpotField) field).offset())); 912 return new XirSnippet(putFieldTemplates.get(site, field.kind()), object, value, XirArgument.forInt(((HotSpotField) field).offset()));
891 } 913 }
892 return new XirSnippet(putFieldTemplates.get(site, field.kind(), UNRESOLVED), object, value); 914 return new XirSnippet(putFieldTemplates.get(site, field.kind(), UNRESOLVED), object, value);