1 /*
2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 *
529 virtual uint cmp( const Node &n ) const;
530 virtual uint size_of() const = 0;
531 virtual void calling_convention( BasicType* sig_bt, VMRegPair *parm_regs, uint argcnt ) const;
532 virtual Node *match( const ProjNode *proj, const Matcher *m );
533 virtual uint ideal_reg() const { return NotAMachineReg; }
534 // Are we guaranteed that this node is a safepoint? Not true for leaf calls and
535 // for some macro nodes whose expansion does not have a safepoint on the fast path.
536 virtual bool guaranteed_safepoint() { return true; }
537 // For macro nodes, the JVMState gets modified during expansion, so when cloning
538 // the node the JVMState must be cloned.
539 virtual void clone_jvms() { } // default is not to clone
540
541 // Returns true if the call may modify n
542 virtual bool may_modify(const TypePtr *addr_t, PhaseTransform *phase);
543 // Does this node have a use of n other than in debug information?
544 bool has_non_debug_use(Node *n);
545 // Returns the unique CheckCastPP of a call
546 // or result projection is there are several CheckCastPP
547 // or returns NULL if there is no one.
548 Node *result_cast();
549
550 // Collect all the interesting edges from a call for use in
551 // replacing the call by something else. Used by macro expansion
552 // and the late inlining support.
553 void extract_projections(CallProjections* projs, bool separate_io_proj);
554
555 virtual uint match_edge(uint idx) const;
556
557 #ifndef PRODUCT
558 virtual void dump_req() const;
559 virtual void dump_spec(outputStream *st) const;
560 #endif
561 };
562
563
564 //------------------------------CallJavaNode-----------------------------------
565 // Make a static or dynamic subroutine call node using Java calling
566 // convention. (The "Java" calling convention is the compiler's calling
567 // convention, as opposed to the interpreter's or that of native C.)
568 class CallJavaNode : public CallNode {
|
1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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 *
529 virtual uint cmp( const Node &n ) const;
530 virtual uint size_of() const = 0;
531 virtual void calling_convention( BasicType* sig_bt, VMRegPair *parm_regs, uint argcnt ) const;
532 virtual Node *match( const ProjNode *proj, const Matcher *m );
533 virtual uint ideal_reg() const { return NotAMachineReg; }
534 // Are we guaranteed that this node is a safepoint? Not true for leaf calls and
535 // for some macro nodes whose expansion does not have a safepoint on the fast path.
536 virtual bool guaranteed_safepoint() { return true; }
537 // For macro nodes, the JVMState gets modified during expansion, so when cloning
538 // the node the JVMState must be cloned.
539 virtual void clone_jvms() { } // default is not to clone
540
541 // Returns true if the call may modify n
542 virtual bool may_modify(const TypePtr *addr_t, PhaseTransform *phase);
543 // Does this node have a use of n other than in debug information?
544 bool has_non_debug_use(Node *n);
545 // Returns the unique CheckCastPP of a call
546 // or result projection is there are several CheckCastPP
547 // or returns NULL if there is no one.
548 Node *result_cast();
549 // Does this node returns pointer?
550 bool returns_pointer() const {
551 const TypeTuple *r = tf()->range();
552 return (r->cnt() > TypeFunc::Parms &&
553 r->field_at(TypeFunc::Parms)->isa_ptr());
554 }
555
556 // Collect all the interesting edges from a call for use in
557 // replacing the call by something else. Used by macro expansion
558 // and the late inlining support.
559 void extract_projections(CallProjections* projs, bool separate_io_proj);
560
561 virtual uint match_edge(uint idx) const;
562
563 #ifndef PRODUCT
564 virtual void dump_req() const;
565 virtual void dump_spec(outputStream *st) const;
566 #endif
567 };
568
569
570 //------------------------------CallJavaNode-----------------------------------
571 // Make a static or dynamic subroutine call node using Java calling
572 // convention. (The "Java" calling convention is the compiler's calling
573 // convention, as opposed to the interpreter's or that of native C.)
574 class CallJavaNode : public CallNode {
|