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comparison src/share/vm/utilities/globalDefinitions.hpp @ 6848:8e47bac5643a

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7054512: Compress class pointers after perm gen removal Summary: support of compress class pointers in the compilers. Reviewed-by: kvn, twisti
author roland
date Tue, 09 Oct 2012 10:11:38 +0200
parents da91efe96a93
children e522a00b91aa e4f764ddb06a
comparison
equal deleted inserted replaced
6847:65d07d9ee446 6848:8e47bac5643a
345 extern int MinObjAlignmentInBytesMask; 345 extern int MinObjAlignmentInBytesMask;
346 346
347 extern int LogMinObjAlignment; 347 extern int LogMinObjAlignment;
348 extern int LogMinObjAlignmentInBytes; 348 extern int LogMinObjAlignmentInBytes;
349 349
350 const int LogKlassAlignmentInBytes = 3;
351 const int LogKlassAlignment = LogKlassAlignmentInBytes - LogHeapWordSize;
352 const int KlassAlignmentInBytes = 1 << LogKlassAlignmentInBytes;
353 const int KlassAlignment = KlassAlignmentInBytes / HeapWordSize;
354
355 // Klass encoding metaspace max size
356 const uint64_t KlassEncodingMetaspaceMax = (uint64_t(max_juint) + 1) << LogKlassAlignmentInBytes;
357
350 // Machine dependent stuff 358 // Machine dependent stuff
351 359
352 #ifdef TARGET_ARCH_x86 360 #ifdef TARGET_ARCH_x86
353 # include "globalDefinitions_x86.hpp" 361 # include "globalDefinitions_x86.hpp"
354 #endif 362 #endif
479 void basic_types_init(); // cannot define here; uses assert 487 void basic_types_init(); // cannot define here; uses assert
480 488
481 489
482 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java 490 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
483 enum BasicType { 491 enum BasicType {
484 T_BOOLEAN = 4, 492 T_BOOLEAN = 4,
485 T_CHAR = 5, 493 T_CHAR = 5,
486 T_FLOAT = 6, 494 T_FLOAT = 6,
487 T_DOUBLE = 7, 495 T_DOUBLE = 7,
488 T_BYTE = 8, 496 T_BYTE = 8,
489 T_SHORT = 9, 497 T_SHORT = 9,
490 T_INT = 10, 498 T_INT = 10,
491 T_LONG = 11, 499 T_LONG = 11,
492 T_OBJECT = 12, 500 T_OBJECT = 12,
493 T_ARRAY = 13, 501 T_ARRAY = 13,
494 T_VOID = 14, 502 T_VOID = 14,
495 T_ADDRESS = 15, 503 T_ADDRESS = 15,
496 T_NARROWOOP= 16, 504 T_NARROWOOP = 16,
497 T_METADATA = 17, 505 T_METADATA = 17,
498 T_CONFLICT = 18, // for stack value type with conflicting contents 506 T_NARROWKLASS = 18,
499 T_ILLEGAL = 99 507 T_CONFLICT = 19, // for stack value type with conflicting contents
508 T_ILLEGAL = 99
500 }; 509 };
501 510
502 inline bool is_java_primitive(BasicType t) { 511 inline bool is_java_primitive(BasicType t) {
503 return T_BOOLEAN <= t && t <= T_LONG; 512 return T_BOOLEAN <= t && t <= T_LONG;
504 } 513 }
542 extern size_t lcm(size_t a, size_t b); 551 extern size_t lcm(size_t a, size_t b);
543 552
544 553
545 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java 554 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/runtime/BasicType.java
546 enum BasicTypeSize { 555 enum BasicTypeSize {
547 T_BOOLEAN_size = 1, 556 T_BOOLEAN_size = 1,
548 T_CHAR_size = 1, 557 T_CHAR_size = 1,
549 T_FLOAT_size = 1, 558 T_FLOAT_size = 1,
550 T_DOUBLE_size = 2, 559 T_DOUBLE_size = 2,
551 T_BYTE_size = 1, 560 T_BYTE_size = 1,
552 T_SHORT_size = 1, 561 T_SHORT_size = 1,
553 T_INT_size = 1, 562 T_INT_size = 1,
554 T_LONG_size = 2, 563 T_LONG_size = 2,
555 T_OBJECT_size = 1, 564 T_OBJECT_size = 1,
556 T_ARRAY_size = 1, 565 T_ARRAY_size = 1,
557 T_NARROWOOP_size = 1, 566 T_NARROWOOP_size = 1,
558 T_VOID_size = 0 567 T_NARROWKLASS_size = 1,
568 T_VOID_size = 0
559 }; 569 };
560 570
561 571
562 // maps a BasicType to its instance field storage type: 572 // maps a BasicType to its instance field storage type:
563 // all sub-word integral types are widened to T_INT 573 // all sub-word integral types are widened to T_INT
565 extern BasicType type2wfield[T_CONFLICT+1]; 575 extern BasicType type2wfield[T_CONFLICT+1];
566 576
567 577
568 // size in bytes 578 // size in bytes
569 enum ArrayElementSize { 579 enum ArrayElementSize {
570 T_BOOLEAN_aelem_bytes = 1, 580 T_BOOLEAN_aelem_bytes = 1,
571 T_CHAR_aelem_bytes = 2, 581 T_CHAR_aelem_bytes = 2,
572 T_FLOAT_aelem_bytes = 4, 582 T_FLOAT_aelem_bytes = 4,
573 T_DOUBLE_aelem_bytes = 8, 583 T_DOUBLE_aelem_bytes = 8,
574 T_BYTE_aelem_bytes = 1, 584 T_BYTE_aelem_bytes = 1,
575 T_SHORT_aelem_bytes = 2, 585 T_SHORT_aelem_bytes = 2,
576 T_INT_aelem_bytes = 4, 586 T_INT_aelem_bytes = 4,
577 T_LONG_aelem_bytes = 8, 587 T_LONG_aelem_bytes = 8,
578 #ifdef _LP64 588 #ifdef _LP64
579 T_OBJECT_aelem_bytes = 8, 589 T_OBJECT_aelem_bytes = 8,
580 T_ARRAY_aelem_bytes = 8, 590 T_ARRAY_aelem_bytes = 8,
581 #else 591 #else
582 T_OBJECT_aelem_bytes = 4, 592 T_OBJECT_aelem_bytes = 4,
583 T_ARRAY_aelem_bytes = 4, 593 T_ARRAY_aelem_bytes = 4,
584 #endif 594 #endif
585 T_NARROWOOP_aelem_bytes = 4, 595 T_NARROWOOP_aelem_bytes = 4,
586 T_VOID_aelem_bytes = 0 596 T_NARROWKLASS_aelem_bytes = 4,
597 T_VOID_aelem_bytes = 0
587 }; 598 };
588 599
589 extern int _type2aelembytes[T_CONFLICT+1]; // maps a BasicType to nof bytes used by its array element 600 extern int _type2aelembytes[T_CONFLICT+1]; // maps a BasicType to nof bytes used by its array element
590 #ifdef ASSERT 601 #ifdef ASSERT
591 extern int type2aelembytes(BasicType t, bool allow_address = false); // asserts 602 extern int type2aelembytes(BasicType t, bool allow_address = false); // asserts