5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 class CodeEmitInfo;
26 class LIR_Assembler;
27 class LIR_OpVisitState;
28
29 // CodeStubs are little 'out-of-line' pieces of code that
30 // usually handle slow cases of operations. All code stubs
31 // are collected and code is emitted at the end of the
32 // nmethod.
33
34 class CodeStub: public CompilationResourceObj {
35 protected:
36 Label _entry; // label at the stub entry point
37 Label _continuation; // label where stub continues, if any
38
39 public:
40 CodeStub() {}
41
42 // code generation
43 void assert_no_unbound_labels() { assert(!_entry.is_unbound() && !_continuation.is_unbound(), "unbound label"); }
44 virtual void emit_code(LIR_Assembler* e) = 0;
569 // addr (the address of the object head) and new_val must be registers.
570 G1PostBarrierStub(LIR_Opr addr, LIR_Opr new_val): _addr(addr), _new_val(new_val) { }
571
572 LIR_Opr addr() const { return _addr; }
573 LIR_Opr new_val() const { return _new_val; }
574
575 virtual void emit_code(LIR_Assembler* e);
576 virtual void visit(LIR_OpVisitState* visitor) {
577 // don't pass in the code emit info since it's processed in the fast path
578 visitor->do_slow_case();
579 visitor->do_input(_addr);
580 visitor->do_input(_new_val);
581 }
582 #ifndef PRODUCT
583 virtual void print_name(outputStream* out) const { out->print("G1PostBarrierStub"); }
584 #endif // PRODUCT
585 };
586
587 #endif // SERIALGC
588 //////////////////////////////////////////////////////////////////////////////////////////
|
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_C1_C1_CODESTUBS_HPP
26 #define SHARE_VM_C1_C1_CODESTUBS_HPP
27
28 #include "c1/c1_FrameMap.hpp"
29 #include "c1/c1_IR.hpp"
30 #include "c1/c1_Instruction.hpp"
31 #include "c1/c1_LIR.hpp"
32 #include "c1/c1_Runtime1.hpp"
33 #include "utilities/array.hpp"
34
35 class CodeEmitInfo;
36 class LIR_Assembler;
37 class LIR_OpVisitState;
38
39 // CodeStubs are little 'out-of-line' pieces of code that
40 // usually handle slow cases of operations. All code stubs
41 // are collected and code is emitted at the end of the
42 // nmethod.
43
44 class CodeStub: public CompilationResourceObj {
45 protected:
46 Label _entry; // label at the stub entry point
47 Label _continuation; // label where stub continues, if any
48
49 public:
50 CodeStub() {}
51
52 // code generation
53 void assert_no_unbound_labels() { assert(!_entry.is_unbound() && !_continuation.is_unbound(), "unbound label"); }
54 virtual void emit_code(LIR_Assembler* e) = 0;
579 // addr (the address of the object head) and new_val must be registers.
580 G1PostBarrierStub(LIR_Opr addr, LIR_Opr new_val): _addr(addr), _new_val(new_val) { }
581
582 LIR_Opr addr() const { return _addr; }
583 LIR_Opr new_val() const { return _new_val; }
584
585 virtual void emit_code(LIR_Assembler* e);
586 virtual void visit(LIR_OpVisitState* visitor) {
587 // don't pass in the code emit info since it's processed in the fast path
588 visitor->do_slow_case();
589 visitor->do_input(_addr);
590 visitor->do_input(_new_val);
591 }
592 #ifndef PRODUCT
593 virtual void print_name(outputStream* out) const { out->print("G1PostBarrierStub"); }
594 #endif // PRODUCT
595 };
596
597 #endif // SERIALGC
598 //////////////////////////////////////////////////////////////////////////////////////////
599
600 #endif // SHARE_VM_C1_C1_CODESTUBS_HPP
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