Mercurial > hg > graal-jvmci-8

comparison src/share/vm/code/dependencies.hpp @ 14262:3aaa4b9966f6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
7194669: CodeCache::mark_for_deoptimization should avoid verifying dependencies multiple times Summary: Avoid verifying dependencies multiple times by caching verified dependencies Reviewed-by: kvn, twisti, roland
author anoll
date Wed, 15 Jan 2014 06:16:55 +0100
parents da91efe96a93
children 524b54a7f1b5
comparison
equal deleted inserted replaced
14260:8cdf3f43f63e 14262:3aaa4b9966f6
478 } 478 }
479 479
480 bool next(); 480 bool next();
481 481
482 DepType type() { return _type; } 482 DepType type() { return _type; }
483 bool has_oop_argument() { return type() == call_site_target_value; }
484 uintptr_t get_identifier(int i);
485
483 int argument_count() { return dep_args(type()); } 486 int argument_count() { return dep_args(type()); }
484 int argument_index(int i) { assert(0 <= i && i < argument_count(), "oob"); 487 int argument_index(int i) { assert(0 <= i && i < argument_count(), "oob");
485 return _xi[i]; } 488 return _xi[i]; }
486 Metadata* argument(int i); // => recorded_oop_at(argument_index(i)) 489 Metadata* argument(int i); // => recorded_oop_at(argument_index(i))
487 oop argument_oop(int i); // => recorded_oop_at(argument_index(i)) 490 oop argument_oop(int i); // => recorded_oop_at(argument_index(i))
520 friend class Dependencies::DepStream; 523 friend class Dependencies::DepStream;
521 524
522 static void print_statistics() PRODUCT_RETURN; 525 static void print_statistics() PRODUCT_RETURN;
523 }; 526 };
524 527
528
529 class DependencySignature : public ResourceObj {
530 private:
531 int _args_count;
532 uintptr_t _argument_hash[Dependencies::max_arg_count];
533 Dependencies::DepType _type;
534
535
536 public:
537 DependencySignature(Dependencies::DepStream& dep) {
538 _args_count = dep.argument_count();
539 _type = dep.type();
540 for (int i = 0; i < _args_count; i++) {
541 _argument_hash[i] = dep.get_identifier(i);
542 }
543 }
544
545 bool equals(const DependencySignature& sig) const;
546
547 int args_count() const { return _args_count; }
548 uintptr_t arg(int idx) const { return _argument_hash[idx]; }
549 Dependencies::DepType type() const { return _type; }
550 };
551
552 class DependencySignatureBuffer : public StackObj {
553 private:
554 GrowableArray<DependencySignature*>** _signatures;
555
556 public:
557 DependencySignatureBuffer();
558 bool add_if_missing(const DependencySignature& sig);
559 };
525 560
526 // Every particular DepChange is a sub-class of this class. 561 // Every particular DepChange is a sub-class of this class.
527 class DepChange : public StackObj { 562 class DepChange : public StackObj {
528 public: 563 public:
529 // What kind of DepChange is this? 564 // What kind of DepChange is this?