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src/hotspot/cpu/aarch64/templateTable_aarch64.cpp

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rev 49800 : 8201593: Print array length in ArrayIndexOutOfBoundsException.


 730 }
 731 
 732 void TemplateTable::index_check(Register array, Register index)
 733 {
 734   // destroys r1, rscratch1
 735   // check array
 736   __ null_check(array, arrayOopDesc::length_offset_in_bytes());
 737   // sign extend index for use by indexed load
 738   // __ movl2ptr(index, index);
 739   // check index
 740   Register length = rscratch1;
 741   __ ldrw(length, Address(array, arrayOopDesc::length_offset_in_bytes()));
 742   __ cmpw(index, length);
 743   if (index != r1) {
 744     // ??? convention: move aberrant index into r1 for exception message
 745     assert(r1 != array, "different registers");
 746     __ mov(r1, index);
 747   }
 748   Label ok;
 749   __ br(Assembler::LO, ok);


 750   __ mov(rscratch1, Interpreter::_throw_ArrayIndexOutOfBoundsException_entry);
 751   __ br(rscratch1);
 752   __ bind(ok);
 753 }
 754 
 755 void TemplateTable::iaload()
 756 {
 757   transition(itos, itos);
 758   __ mov(r1, r0);
 759   __ pop_ptr(r0);
 760   // r0: array
 761   // r1: index
 762   index_check(r0, r1); // leaves index in r1, kills rscratch1
 763   __ lea(r1, Address(r0, r1, Address::uxtw(2)));
 764   __ ldrw(r0, Address(r1, arrayOopDesc::base_offset_in_bytes(T_INT)));
 765 }
 766 
 767 void TemplateTable::laload()
 768 {
 769   transition(itos, ltos);




 730 }
 731 
 732 void TemplateTable::index_check(Register array, Register index)
 733 {
 734   // destroys r1, rscratch1
 735   // check array
 736   __ null_check(array, arrayOopDesc::length_offset_in_bytes());
 737   // sign extend index for use by indexed load
 738   // __ movl2ptr(index, index);
 739   // check index
 740   Register length = rscratch1;
 741   __ ldrw(length, Address(array, arrayOopDesc::length_offset_in_bytes()));
 742   __ cmpw(index, length);
 743   if (index != r1) {
 744     // ??? convention: move aberrant index into r1 for exception message
 745     assert(r1 != array, "different registers");
 746     __ mov(r1, index);
 747   }
 748   Label ok;
 749   __ br(Assembler::LO, ok);
 750     // ??? convention: move array into r3 for exception message
 751   __ mov(r3, array);
 752   __ mov(rscratch1, Interpreter::_throw_ArrayIndexOutOfBoundsException_entry);
 753   __ br(rscratch1);
 754   __ bind(ok);
 755 }
 756 
 757 void TemplateTable::iaload()
 758 {
 759   transition(itos, itos);
 760   __ mov(r1, r0);
 761   __ pop_ptr(r0);
 762   // r0: array
 763   // r1: index
 764   index_check(r0, r1); // leaves index in r1, kills rscratch1
 765   __ lea(r1, Address(r0, r1, Address::uxtw(2)));
 766   __ ldrw(r0, Address(r1, arrayOopDesc::base_offset_in_bytes(T_INT)));
 767 }
 768 
 769 void TemplateTable::laload()
 770 {
 771   transition(itos, ltos);


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