Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/cpu/sparc/vm/macroAssembler_sparc.cpp
src/cpu/sparc/vm/macroAssembler_sparc.cpp
- changeset 8997
- f8a45a60bc6b
- parent 8944
- 072770c9a6b9
- child 9041
- 95a08233f46c
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replaced
| 8996:2667e5c45e24 | 8997:f8a45a60bc6b |
|---|---|
| 1 /* | 1 /* |
| 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. | 2 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved. |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | 4 * |
| 5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
| 7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
| 2181 Register intf_klass, | 2181 Register intf_klass, |
| 2182 RegisterOrConstant itable_index, | 2182 RegisterOrConstant itable_index, |
| 2183 Register method_result, | 2183 Register method_result, |
| 2184 Register scan_temp, | 2184 Register scan_temp, |
| 2185 Register sethi_temp, | 2185 Register sethi_temp, |
| 2186 Label& L_no_such_interface) { | 2186 Label& L_no_such_interface, |
| 2187 bool return_method) { | |
| 2187 assert_different_registers(recv_klass, intf_klass, method_result, scan_temp); | 2188 assert_different_registers(recv_klass, intf_klass, method_result, scan_temp); |
| 2188 assert(itable_index.is_constant() || itable_index.as_register() == method_result, | 2189 assert(!return_method || itable_index.is_constant() || itable_index.as_register() == method_result, |
| 2189 "caller must use same register for non-constant itable index as for method"); | 2190 "caller must use same register for non-constant itable index as for method"); |
| 2190 | 2191 |
| 2191 Label L_no_such_interface_restore; | 2192 Label L_no_such_interface_restore; |
| 2192 bool did_save = false; | 2193 bool did_save = false; |
| 2193 if (scan_temp == noreg || sethi_temp == noreg) { | 2194 if (scan_temp == noreg || sethi_temp == noreg) { |
| 2227 // Hoisted: add(scan_temp, BytesPerLong-1, scan_temp); | 2228 // Hoisted: add(scan_temp, BytesPerLong-1, scan_temp); |
| 2228 and3(scan_temp, -round_to_unit, scan_temp); | 2229 and3(scan_temp, -round_to_unit, scan_temp); |
| 2229 } | 2230 } |
| 2230 add(recv_klass, scan_temp, scan_temp); | 2231 add(recv_klass, scan_temp, scan_temp); |
| 2231 | 2232 |
| 2232 // Adjust recv_klass by scaled itable_index, so we can free itable_index. | 2233 if (return_method) { |
| 2233 RegisterOrConstant itable_offset = itable_index; | 2234 // Adjust recv_klass by scaled itable_index, so we can free itable_index. |
| 2234 itable_offset = regcon_sll_ptr(itable_index, exact_log2(itableMethodEntry::size() * wordSize), itable_offset); | 2235 RegisterOrConstant itable_offset = itable_index; |
| 2235 itable_offset = regcon_inc_ptr(itable_offset, itableMethodEntry::method_offset_in_bytes(), itable_offset); | 2236 itable_offset = regcon_sll_ptr(itable_index, exact_log2(itableMethodEntry::size() * wordSize), itable_offset); |
| 2236 add(recv_klass, ensure_simm13_or_reg(itable_offset, sethi_temp), recv_klass); | 2237 itable_offset = regcon_inc_ptr(itable_offset, itableMethodEntry::method_offset_in_bytes(), itable_offset); |
| 2238 add(recv_klass, ensure_simm13_or_reg(itable_offset, sethi_temp), recv_klass); | |
| 2239 } | |
| 2237 | 2240 |
| 2238 // for (scan = klass->itable(); scan->interface() != NULL; scan += scan_step) { | 2241 // for (scan = klass->itable(); scan->interface() != NULL; scan += scan_step) { |
| 2239 // if (scan->interface() == intf) { | 2242 // if (scan->interface() == intf) { |
| 2240 // result = (klass + scan->offset() + itable_index); | 2243 // result = (klass + scan->offset() + itable_index); |
| 2241 // } | 2244 // } |
| 2266 bind(L_search); | 2269 bind(L_search); |
| 2267 } | 2270 } |
| 2268 | 2271 |
| 2269 bind(L_found_method); | 2272 bind(L_found_method); |
| 2270 | 2273 |
| 2271 // Got a hit. | 2274 if (return_method) { |
| 2272 int ito_offset = itableOffsetEntry::offset_offset_in_bytes(); | 2275 // Got a hit. |
| 2273 // scan_temp[-scan_step] points to the vtable offset we need | 2276 int ito_offset = itableOffsetEntry::offset_offset_in_bytes(); |
| 2274 ito_offset -= scan_step; | 2277 // scan_temp[-scan_step] points to the vtable offset we need |
| 2275 lduw(scan_temp, ito_offset, scan_temp); | 2278 ito_offset -= scan_step; |
| 2276 ld_ptr(recv_klass, scan_temp, method_result); | 2279 lduw(scan_temp, ito_offset, scan_temp); |
| 2280 ld_ptr(recv_klass, scan_temp, method_result); | |
| 2281 } | |
| 2277 | 2282 |
| 2278 if (did_save) { | 2283 if (did_save) { |
| 2279 Label L_done; | 2284 Label L_done; |
| 2280 ba(L_done); | 2285 ba(L_done); |
| 2281 delayed()->restore(); | 2286 delayed()->restore(); |
