1 /*
2 * Copyright (c) 1999, 2013, 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 *
34
35 LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool outgoing) {
36 LIR_Opr opr = LIR_OprFact::illegalOpr;
37 VMReg r_1 = reg->first();
38 VMReg r_2 = reg->second();
39 if (r_1->is_stack()) {
40 // Convert stack slot to an SP offset
41 // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value
42 // so we must add it in here.
43 int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
44 opr = LIR_OprFact::address(new LIR_Address(SP_opr, st_off + STACK_BIAS, type));
45 } else if (r_1->is_Register()) {
46 Register reg = r_1->as_Register();
47 if (outgoing) {
48 assert(!reg->is_in(), "should be using I regs");
49 } else {
50 assert(!reg->is_out(), "should be using O regs");
51 }
52 if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) {
53 opr = as_long_opr(reg);
54 } else if (type == T_OBJECT || type == T_ARRAY) {
55 opr = as_oop_opr(reg);
56 } else if (type == T_METADATA) {
57 opr = as_metadata_opr(reg);
58 } else {
59 opr = as_opr(reg);
60 }
61 } else if (r_1->is_FloatRegister()) {
62 assert(type == T_DOUBLE || type == T_FLOAT, "wrong type");
63 FloatRegister f = r_1->as_FloatRegister();
64 if (type == T_DOUBLE) {
65 opr = as_double_opr(f);
66 } else {
67 opr = as_float_opr(f);
68 }
69 }
70 return opr;
71 }
72
73 // FrameMap
74 //--------------------------------------------------------
|
1 /*
2 * Copyright (c) 1999, 2019, 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 *
34
35 LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool outgoing) {
36 LIR_Opr opr = LIR_OprFact::illegalOpr;
37 VMReg r_1 = reg->first();
38 VMReg r_2 = reg->second();
39 if (r_1->is_stack()) {
40 // Convert stack slot to an SP offset
41 // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value
42 // so we must add it in here.
43 int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size;
44 opr = LIR_OprFact::address(new LIR_Address(SP_opr, st_off + STACK_BIAS, type));
45 } else if (r_1->is_Register()) {
46 Register reg = r_1->as_Register();
47 if (outgoing) {
48 assert(!reg->is_in(), "should be using I regs");
49 } else {
50 assert(!reg->is_out(), "should be using O regs");
51 }
52 if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) {
53 opr = as_long_opr(reg);
54 } else if (is_reference_type(type)) {
55 opr = as_oop_opr(reg);
56 } else if (type == T_METADATA) {
57 opr = as_metadata_opr(reg);
58 } else {
59 opr = as_opr(reg);
60 }
61 } else if (r_1->is_FloatRegister()) {
62 assert(type == T_DOUBLE || type == T_FLOAT, "wrong type");
63 FloatRegister f = r_1->as_FloatRegister();
64 if (type == T_DOUBLE) {
65 opr = as_double_opr(f);
66 } else {
67 opr = as_float_opr(f);
68 }
69 }
70 return opr;
71 }
72
73 // FrameMap
74 //--------------------------------------------------------
|