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src/hotspot/cpu/s390/c1_LIRGenerator_s390.cpp
BarrierSetC1
LIR_Address* LIRGenerator::generate_address(LIR_Opr base, LIR_Opr index,
int shift, int disp, BasicType type) {
assert(base->is_register(), "must be");
if (index->is_constant()) {
! intptr_t large_disp = ((intx)(index->as_constant_ptr()->as_jint()) << shift) + disp;
if (Displacement::is_validDisp(large_disp)) {
return new LIR_Address(base, large_disp, type);
}
// Index is illegal so replace it with the displacement loaded into a register.
index = new_pointer_register();
LIR_Address* LIRGenerator::generate_address(LIR_Opr base, LIR_Opr index,
int shift, int disp, BasicType type) {
assert(base->is_register(), "must be");
if (index->is_constant()) {
! intx large_disp = disp;
! LIR_Const *constant = index->as_constant_ptr();
! if (constant->type() == T_LONG) {
! large_disp += constant->as_jlong() << shift;
! } else {
! large_disp += (intx)(constant->as_jint()) << shift;
! }
if (Displacement::is_validDisp(large_disp)) {
return new LIR_Address(base, large_disp, type);
}
// Index is illegal so replace it with the displacement loaded into a register.
index = new_pointer_register();
***************
return new LIR_Address(base, index, disp, type);
}
}
LIR_Address* LIRGenerator::emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr,
! BasicType type, bool needs_card_mark) {
int elem_size = type2aelembytes(type);
int shift = exact_log2(elem_size);
int offset_in_bytes = arrayOopDesc::base_offset_in_bytes(type);
LIR_Address* addr;
return new LIR_Address(base, index, disp, type);
}
}
LIR_Address* LIRGenerator::emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr,
! BasicType type) {
int elem_size = type2aelembytes(type);
int shift = exact_log2(elem_size);
int offset_in_bytes = arrayOopDesc::base_offset_in_bytes(type);
LIR_Address* addr;
***************
}
addr = new LIR_Address(array_opr,
index_opr,
offset_in_bytes, type);
}
! if (needs_card_mark) {
! // This store will need a precise card mark, so go ahead and
! // compute the full adddres instead of computing once for the
! // store and again for the card mark.
! LIR_Opr tmp = new_pointer_register();
! __ leal(LIR_OprFact::address(addr), tmp);
! return new LIR_Address(tmp, type);
! } else {
! return addr;
! }
}
LIR_Opr LIRGenerator::load_immediate(int x, BasicType type) {
LIR_Opr r = LIR_OprFact::illegalOpr;
if (type == T_LONG) {
}
addr = new LIR_Address(array_opr,
index_opr,
offset_in_bytes, type);
}
! return addr;
}
LIR_Opr LIRGenerator::load_immediate(int x, BasicType type) {
LIR_Opr r = LIR_OprFact::illegalOpr;
if (type == T_LONG) {
***************
//----------------------------------------------------------------------
// visitor functions
//----------------------------------------------------------------------
! void LIRGenerator::do_StoreIndexed(StoreIndexed* x) {
! assert(x->is_pinned(),"");
! bool needs_range_check = x->compute_needs_range_check();
! bool use_length = x->length() != NULL;
! bool obj_store = x->elt_type() == T_ARRAY || x->elt_type() == T_OBJECT;
! bool needs_store_check = obj_store && (x->value()->as_Constant() == NULL ||
! !get_jobject_constant(x->value())->is_null_object() ||
! x->should_profile());
!
! LIRItem array(x->array(), this);
! LIRItem index(x->index(), this);
! LIRItem value(x->value(), this);
! LIRItem length(this);
!
! array.load_item();
! index.load_nonconstant(20);
!
! if (use_length && needs_range_check) {
! length.set_instruction(x->length());
! length.load_item();
! }
! if (needs_store_check || x->check_boolean()) {
! value.load_item();
! } else {
! value.load_for_store(x->elt_type());
! }
!
! set_no_result(x);
!
! // The CodeEmitInfo must be duplicated for each different
! // LIR-instruction because spilling can occur anywhere between two
! // instructions and so the debug information must be different.
! CodeEmitInfo* range_check_info = state_for (x);
! CodeEmitInfo* null_check_info = NULL;
! if (x->needs_null_check()) {
! null_check_info = new CodeEmitInfo(range_check_info);
! }
!
! // Emit array address setup early so it schedules better.
! LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), obj_store);
! if (value.result()->is_constant() && array_addr->index()->is_valid()) {
! // Constants cannot be stored with index register on ZARCH_64 (see LIR_Assembler::const2mem()).
! LIR_Opr tmp = new_pointer_register();
! __ leal(LIR_OprFact::address(array_addr), tmp);
! array_addr = new LIR_Address(tmp, x->elt_type());
! }
!
! if (GenerateRangeChecks && needs_range_check) {
! if (use_length) {
! __ cmp(lir_cond_belowEqual, length.result(), index.result());
! __ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result()));
! } else {
! array_range_check(array.result(), index.result(), null_check_info, range_check_info);
! // Range_check also does the null check.
! null_check_info = NULL;
! }
! }
!
! if (GenerateArrayStoreCheck && needs_store_check) {
! LIR_Opr tmp1 = new_register(objectType);
! LIR_Opr tmp2 = new_register(objectType);
! LIR_Opr tmp3 = LIR_OprFact::illegalOpr;
!
! CodeEmitInfo* store_check_info = new CodeEmitInfo(range_check_info);
! __ store_check(value.result(), array.result(), tmp1, tmp2, tmp3, store_check_info, x->profiled_method(), x->profiled_bci());
! }
!
! if (obj_store) {
! // Needs GC write barriers.
! pre_barrier(LIR_OprFact::address(array_addr), LIR_OprFact::illegalOpr /* pre_val */,
! true /* do_load */, false /* patch */, NULL);
! }
!
! LIR_Opr result = maybe_mask_boolean(x, array.result(), value.result(), null_check_info);
! __ move(result, array_addr, null_check_info);
!
! if (obj_store) {
! // Precise card mark
! post_barrier(LIR_OprFact::address(array_addr), value.result());
! }
}
void LIRGenerator::do_MonitorEnter(MonitorEnter* x) {
assert(x->is_pinned(),"");
LIRItem obj(x->obj(), this);
//----------------------------------------------------------------------
// visitor functions
//----------------------------------------------------------------------
! void LIRGenerator::array_store_check(LIR_Opr value, LIR_Opr array, CodeEmitInfo* store_check_info, ciMethod* profiled_method, int profiled_bci) {
! LIR_Opr tmp1 = new_register(objectType);
! LIR_Opr tmp2 = new_register(objectType);
! LIR_Opr tmp3 = LIR_OprFact::illegalOpr;
! __ store_check(value, array, tmp1, tmp2, tmp3, store_check_info, profiled_method, profiled_bci);
}
void LIRGenerator::do_MonitorEnter(MonitorEnter* x) {
assert(x->is_pinned(),"");
LIRItem obj(x->obj(), this);
***************
} else {
ShouldNotReachHere();
}
}
! void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
! assert(x->number_of_arguments() == 4, "wrong type");
! LIRItem obj (x->argument_at(0), this); // object
! LIRItem offset(x->argument_at(1), this); // offset of field
! LIRItem cmp (x->argument_at(2), this); // Value to compare with field.
! LIRItem val (x->argument_at(3), this); // Replace field with val if matches cmp.
!
! // Get address of field.
! obj.load_item();
! offset.load_nonconstant(20);
! cmp.load_item();
! val.load_item();
!
! LIR_Opr addr = new_pointer_register();
! LIR_Address* a;
! if (offset.result()->is_constant()) {
! assert(Immediate::is_simm20(offset.result()->as_jlong()), "should have been loaded into register");
! a = new LIR_Address(obj.result(),
! offset.result()->as_jlong(),
! as_BasicType(type));
! } else {
! a = new LIR_Address(obj.result(),
! offset.result(),
! 0,
! as_BasicType(type));
! }
! __ leal(LIR_OprFact::address(a), addr);
!
! if (type == objectType) { // Write-barrier needed for Object fields.
! pre_barrier(addr, LIR_OprFact::illegalOpr /* pre_val */,
! true /* do_load */, false /* patch */, NULL);
! }
!
! LIR_Opr ill = LIR_OprFact::illegalOpr; // for convenience
! if (type == objectType) {
! __ cas_obj(addr, cmp.result(), val.result(), new_register(T_OBJECT), new_register(T_OBJECT));
! } else if (type == intType) {
! __ cas_int(addr, cmp.result(), val.result(), ill, ill);
! } else if (type == longType) {
! __ cas_long(addr, cmp.result(), val.result(), ill, ill);
} else {
ShouldNotReachHere();
}
// Generate conditional move of boolean result.
! LIR_Opr result = rlock_result(x);
__ cmove(lir_cond_equal, LIR_OprFact::intConst(1), LIR_OprFact::intConst(0),
! result, as_BasicType(type));
! if (type == objectType) { // Write-barrier needed for Object fields.
! // Precise card mark since could either be object or array
! post_barrier(addr, val.result());
! }
}
void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
switch (x->id()) {
case vmIntrinsics::_dabs:
case vmIntrinsics::_dsqrt: {
} else {
ShouldNotReachHere();
}
}
! LIR_Opr LIRGenerator::atomic_cmpxchg(BasicType type, LIR_Opr addr, LIRItem& cmp_value, LIRItem& new_value) {
! LIR_Opr t1 = LIR_OprFact::illegalOpr;
! LIR_Opr t2 = LIR_OprFact::illegalOpr;
! cmp_value.load_item();
! new_value.load_item();
! if (type == T_OBJECT) {
! if (UseCompressedOops) {
! t1 = new_register(T_OBJECT);
! t2 = new_register(T_OBJECT);
! }
! __ cas_obj(addr->as_address_ptr()->base(), cmp_value.result(), new_value.result(), t1, t2);
! } else if (type == T_INT) {
! __ cas_int(addr->as_address_ptr()->base(), cmp_value.result(), new_value.result(), t1, t2);
! } else if (type == T_LONG) {
! __ cas_long(addr->as_address_ptr()->base(), cmp_value.result(), new_value.result(), t1, t2);
} else {
ShouldNotReachHere();
}
// Generate conditional move of boolean result.
! LIR_Opr result = new_register(T_INT);
__ cmove(lir_cond_equal, LIR_OprFact::intConst(1), LIR_OprFact::intConst(0),
! result, type);
! return result;
}
+ LIR_Opr LIRGenerator::atomic_xchg(BasicType type, LIR_Opr addr, LIRItem& value) {
+ Unimplemented(); // Currently not supported on this platform.
+ return LIR_OprFact::illegalOpr;
+ }
+
+ LIR_Opr LIRGenerator::atomic_add(BasicType type, LIR_Opr addr, LIRItem& value) {
+ LIR_Opr result = new_register(type);
+ value.load_item();
+ __ xadd(addr, value.result(), result, LIR_OprFact::illegalOpr);
+ return result;
+ }
void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
switch (x->id()) {
case vmIntrinsics::_dabs:
case vmIntrinsics::_dsqrt: {
***************
void LIRGenerator::volatile_field_load(LIR_Address* address, LIR_Opr result,
CodeEmitInfo* info) {
__ load(address, result, info);
}
-
- void LIRGenerator::put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data,
- BasicType type, bool is_volatile) {
- LIR_Address* addr = new LIR_Address(src, offset, type);
- bool is_obj = (type == T_ARRAY || type == T_OBJECT);
- if (is_obj) {
- // Do the pre-write barrier, if any.
- pre_barrier(LIR_OprFact::address(addr), LIR_OprFact::illegalOpr /* pre_val */,
- true /* do_load */, false /* patch */, NULL);
- __ move(data, addr);
- assert(src->is_register(), "must be register");
- // Seems to be a precise address.
- post_barrier(LIR_OprFact::address(addr), data);
- } else {
- __ move(data, addr);
- }
- }
-
-
- void LIRGenerator::get_Object_unsafe(LIR_Opr dst, LIR_Opr src, LIR_Opr offset,
- BasicType type, bool is_volatile) {
- LIR_Address* addr = new LIR_Address(src, offset, type);
- __ load(addr, dst);
- }
-
- void LIRGenerator::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {
- BasicType type = x->basic_type();
- assert (x->is_add() && type != T_ARRAY && type != T_OBJECT, "not supported");
- LIRItem src(x->object(), this);
- LIRItem off(x->offset(), this);
- LIRItem value(x->value(), this);
-
- src.load_item();
- value.load_item();
- off.load_nonconstant(20);
-
- LIR_Opr dst = rlock_result(x, type);
- LIR_Opr data = value.result();
- LIR_Opr offset = off.result();
-
- LIR_Address* addr;
- if (offset->is_constant()) {
- assert(Immediate::is_simm20(offset->as_jlong()), "should have been loaded into register");
- addr = new LIR_Address(src.result(), offset->as_jlong(), type);
- } else {
- addr = new LIR_Address(src.result(), offset, type);
- }
-
- __ xadd(LIR_OprFact::address(addr), data, dst, LIR_OprFact::illegalOpr);
- }
-
void LIRGenerator::do_update_CRC32(Intrinsic* x) {
assert(UseCRC32Intrinsics, "or should not be here");
LIR_Opr result = rlock_result(x);
switch (x->id()) {
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