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src/hotspot/share/c1/c1_Runtime1.cpp

remove c1 runtime1 medium slowpath

*** 1356,1426 **** // for now we just print out the block id tty->print("%d ", block_id); JRT_END - // Array copy return codes. - enum { - ac_failed = -1, // arraycopy failed - ac_ok = 0 // arraycopy succeeded - }; - - - // Below length is the # elements copied. - template <class T> int obj_arraycopy_work(oopDesc* src, T* src_addr, - oopDesc* dst, T* dst_addr, - int length) { - if (src == dst) { - // same object, no check - HeapAccess<>::oop_arraycopy(arrayOop(src), arrayOop(dst), src_addr, dst_addr, length); - return ac_ok; - } else { - Klass* bound = ObjArrayKlass::cast(dst->klass())->element_klass(); - Klass* stype = ObjArrayKlass::cast(src->klass())->element_klass(); - if (stype == bound || stype->is_subtype_of(bound)) { - // Elements are guaranteed to be subtypes, so no check necessary - HeapAccess<ARRAYCOPY_DISJOINT>::oop_arraycopy(arrayOop(src), arrayOop(dst), src_addr, dst_addr, length); - return ac_ok; - } - } - return ac_failed; - } - - // fast and direct copy of arrays; returning -1, means that an exception may be thrown - // and we did not copy anything - JRT_LEAF(int, Runtime1::arraycopy(oopDesc* src, int src_pos, oopDesc* dst, int dst_pos, int length)) - #ifndef PRODUCT - _generic_arraycopy_cnt++; // Slow-path oop array copy - #endif - - if (src == NULL || dst == NULL || src_pos < 0 || dst_pos < 0 || length < 0) return ac_failed; - if (!dst->is_array() || !src->is_array()) return ac_failed; - if ((unsigned int) arrayOop(src)->length() < (unsigned int)src_pos + (unsigned int)length) return ac_failed; - if ((unsigned int) arrayOop(dst)->length() < (unsigned int)dst_pos + (unsigned int)length) return ac_failed; - - if (length == 0) return ac_ok; - if (src->is_typeArray()) { - Klass* klass_oop = src->klass(); - if (klass_oop != dst->klass()) return ac_failed; - TypeArrayKlass* klass = TypeArrayKlass::cast(klass_oop); - klass->copy_array(arrayOop(src), src_pos, arrayOop(dst), dst_pos, length, Thread::current()); - return ac_ok; - } else if (src->is_objArray() && dst->is_objArray()) { - if (UseCompressedOops) { - narrowOop *src_addr = objArrayOop(src)->obj_at_addr<narrowOop>(src_pos); - narrowOop *dst_addr = objArrayOop(dst)->obj_at_addr<narrowOop>(dst_pos); - return obj_arraycopy_work(src, src_addr, dst, dst_addr, length); - } else { - oop *src_addr = objArrayOop(src)->obj_at_addr<oop>(src_pos); - oop *dst_addr = objArrayOop(dst)->obj_at_addr<oop>(dst_pos); - return obj_arraycopy_work(src, src_addr, dst, dst_addr, length); - } - } - return ac_failed; - JRT_END - - JRT_LEAF(int, Runtime1::is_instance_of(oopDesc* mirror, oopDesc* obj)) // had to return int instead of bool, otherwise there may be a mismatch // between the C calling convention and the Java one. // e.g., on x86, GCC may clear only %al when returning a bool false, but // JVM takes the whole %eax as the return value, which may misinterpret --- 1356,1365 ----
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