1427 new_memory = new (C) indIndexScale_win95_safeOper(memory->scale());
1428 break;
1429 case INDINDEXSCALEOFFSET:
1430 new_memory = new (C) indIndexScaleOffset_win95_safeOper(memory->scale(), memory->disp(NULL, NULL, 0));
1431 break;
1432 case LOAD_LONG_INDIRECT:
1433 case LOAD_LONG_INDOFFSET32:
1434 // Does not use EBP as address register, use { EDX, EBX, EDI, ESI}
1435 return;
1436 default:
1437 assert(false, "unexpected memory operand in pd_implicit_null_fixup()");
1438 return;
1439 }
1440 node->_opnds[opcnt] = new_memory;
1441 }
1442
1443 // Advertise here if the CPU requires explicit rounding operations
1444 // to implement the UseStrictFP mode.
1445 const bool Matcher::strict_fp_requires_explicit_rounding = true;
1446
1447 // Do floats take an entire double register or just half?
1448 const bool Matcher::float_in_double = true;
1449 // Do ints take an entire long register or just half?
1450 const bool Matcher::int_in_long = false;
1451
1452 // Return whether or not this register is ever used as an argument. This
1453 // function is used on startup to build the trampoline stubs in generateOptoStub.
1454 // Registers not mentioned will be killed by the VM call in the trampoline, and
1455 // arguments in those registers not be available to the callee.
1456 bool Matcher::can_be_java_arg( int reg ) {
1457 if( reg == ECX_num || reg == EDX_num ) return true;
1458 if( (reg == XMM0a_num || reg == XMM1a_num) && UseSSE>=1 ) return true;
1459 if( (reg == XMM0b_num || reg == XMM1b_num) && UseSSE>=2 ) return true;
1460 return false;
1461 }
1462
1463 bool Matcher::is_spillable_arg( int reg ) {
1464 return can_be_java_arg(reg);
1465 }
1466
1467 // Register for DIVI projection of divmodI
1468 RegMask Matcher::divI_proj_mask() {
|
1427 new_memory = new (C) indIndexScale_win95_safeOper(memory->scale());
1428 break;
1429 case INDINDEXSCALEOFFSET:
1430 new_memory = new (C) indIndexScaleOffset_win95_safeOper(memory->scale(), memory->disp(NULL, NULL, 0));
1431 break;
1432 case LOAD_LONG_INDIRECT:
1433 case LOAD_LONG_INDOFFSET32:
1434 // Does not use EBP as address register, use { EDX, EBX, EDI, ESI}
1435 return;
1436 default:
1437 assert(false, "unexpected memory operand in pd_implicit_null_fixup()");
1438 return;
1439 }
1440 node->_opnds[opcnt] = new_memory;
1441 }
1442
1443 // Advertise here if the CPU requires explicit rounding operations
1444 // to implement the UseStrictFP mode.
1445 const bool Matcher::strict_fp_requires_explicit_rounding = true;
1446
1447 // Do floats are conerted to double when stored to stack during deoptimization.
1448 // On x32 it is stored with convertion only when FPU is used (UseSSE == 0).
1449 bool Matcher::float_in_double() { return (UseSSE == 0); }
1450
1451 // Do ints take an entire long register or just half?
1452 const bool Matcher::int_in_long = false;
1453
1454 // Return whether or not this register is ever used as an argument. This
1455 // function is used on startup to build the trampoline stubs in generateOptoStub.
1456 // Registers not mentioned will be killed by the VM call in the trampoline, and
1457 // arguments in those registers not be available to the callee.
1458 bool Matcher::can_be_java_arg( int reg ) {
1459 if( reg == ECX_num || reg == EDX_num ) return true;
1460 if( (reg == XMM0a_num || reg == XMM1a_num) && UseSSE>=1 ) return true;
1461 if( (reg == XMM0b_num || reg == XMM1b_num) && UseSSE>=2 ) return true;
1462 return false;
1463 }
1464
1465 bool Matcher::is_spillable_arg( int reg ) {
1466 return can_be_java_arg(reg);
1467 }
1468
1469 // Register for DIVI projection of divmodI
1470 RegMask Matcher::divI_proj_mask() {
|