jdk8-mips64-public/hotspot: src/cpu/sparc/vm/c1_LinearScan

7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>

     1 /*

     2  * Copyright (c) 2005, 2010, 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  *

    23  */

    25 #ifndef CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP

    26 #define CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP

    28 inline bool LinearScan::is_processed_reg_num(int reg_num) {

    29   return reg_num < 26 || reg_num > 31;

    30 }

    32 inline int LinearScan::num_physical_regs(BasicType type) {

    33   // Sparc requires two cpu registers for long

    34   // and two cpu registers for double

    35 #ifdef _LP64

    36   if (type == T_DOUBLE) {

    37 #else

    38   if (type == T_DOUBLE || type == T_LONG) {

    39 #endif

    40     return 2;

    41   }

    42   return 1;

    43 }

    46 inline bool LinearScan::requires_adjacent_regs(BasicType type) {

    47 #ifdef _LP64

    48   return type == T_DOUBLE;

    49 #else

    50   return type == T_DOUBLE || type == T_LONG;

    51 #endif

    52 }

    54 inline bool LinearScan::is_caller_save(int assigned_reg) {

    55   return assigned_reg > pd_last_callee_saved_reg && assigned_reg <= pd_last_fpu_reg;

    56 }

    59 inline void LinearScan::pd_add_temps(LIR_Op* op) {

    60   // No special case behaviours yet

    61 }

    64 inline bool LinearScanWalker::pd_init_regs_for_alloc(Interval* cur) {

    65   if (allocator()->gen()->is_vreg_flag_set(cur->reg_num(), LIRGenerator::callee_saved)) {

    66     assert(cur->type() != T_FLOAT && cur->type() != T_DOUBLE, "cpu regs only");

    67     _first_reg = pd_first_callee_saved_reg;

    68     _last_reg = pd_last_callee_saved_reg;

    69     return true;

    70   } else if (cur->type() == T_INT || cur->type() == T_LONG || cur->type() == T_OBJECT || cur->type() == T_ADDRESS) {

    71     _first_reg = pd_first_cpu_reg;

    72     _last_reg = pd_last_allocatable_cpu_reg;

    73     return true;

    74   }

    75   return false;

    76 }

    78 #endif // CPU_SPARC_VM_C1_LINEARSCAN_SPARC_HPP

src/cpu/sparc/vm/c1_LinearScan_sparc.hpp@1d7922586cf6

src/cpu/sparc/vm/c1_LinearScan_sparc.hpp

Mercurial > jdk8-mips64-public > hotspot / file revision

src/cpu/sparc/vm/c1_LinearScan_sparc.hpp@1d7922586cf6

src/cpu/sparc/vm/c1_LinearScan_sparc.hpp