static RegSet range(Register start, Register end) {
uint32_t bits = ~0;
bits <<= start->encoding();
bits <<= 31 - end->encoding();
bits >>= 31 - end->encoding();
return RegSet(bits);
}
void C1_MacroAssembler::initialize_body(Register objectFields, Register len_in_bytes, Register Rzero) {
Label done;
assert_different_registers(objectFields, len_in_bytes, Rzero);
// Initialize object fields.
// See documentation for MVCLE instruction!!!
assert(objectFields->encoding()%2==0, "objectFields must be an even register");
assert(len_in_bytes->encoding() == (objectFields->encoding()+1), "objectFields and len_in_bytes must be a register pair");
assert(Rzero->encoding()%2==1, "Rzero must be an odd register");
// Use Rzero as src length, then mvcle will copy nothing
// and fill the object with the padding value 0.
move_long_ext(objectFields, as_Register(Rzero->encoding()-1), 0);
bind(done);
}
void VMRegImpl::set_regName() {
Register reg = ::as_Register(0);
int i;
for (i = 0; i < ConcreteRegisterImpl::max_gpr; ) {
regName[i++] = reg->name();
regName[i++] = reg->name();
if (reg->encoding() < RegisterImpl::number_of_registers-1)
reg = reg->successor();
}
FloatRegister freg = ::as_FloatRegister(0);
for ( ; i < ConcreteRegisterImpl::max_fpr; ) {
regName[i++] = freg->name();
regName[i++] = freg->name();
if (reg->encoding() < FloatRegisterImpl::number_of_registers-1)
freg = freg->successor();
}
for ( ; i < ConcreteRegisterImpl::number_of_registers; i++) {
regName[i] = "NON-GPR-FPR";
}
}
void NativePopReg::insert(address code_pos, Register reg) {
assert(NativePopReg::instruction_size == sizeof(char), "right address unit for update");
*code_pos = (char)(instruction_code | reg->encoding())&0xFF;
ICache::invalidate_range(code_pos, instruction_size);
}