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

 /*

  * Copyright (c) 2001, 2014, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  *

  */

 #include "precompiled.hpp"

 #include "runtime/stackValueCollection.hpp"

 #ifdef TARGET_ARCH_x86

 # include "jniTypes_x86.hpp"

 #endif

 #ifdef TARGET_ARCH_sparc

 # include "jniTypes_sparc.hpp"

 #endif

 #ifdef TARGET_ARCH_zero

 # include "jniTypes_zero.hpp"

 #endif

 #ifdef TARGET_ARCH_arm

 # include "jniTypes_arm.hpp"

 #endif

 #ifdef TARGET_ARCH_ppc

 # include "jniTypes_ppc.hpp"

 #endif

 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC

 jint StackValueCollection::int_at(int slot) const {

   intptr_t val =  at(slot)->get_int();

   jint ival = *((jint*) (&val));

   return ival;

 }

 jlong StackValueCollection::long_at(int slot) const {

 #ifdef _LP64

   return at(slot+1)->get_int();

 #else

   union {

     jlong jl;

     jint  array[2];

   } value;

   // Interpreter stack is reversed in memory:

   // low memory location is in higher java local slot.

   value.array[0] = at(slot+1)->get_int();

   value.array[1] = at(slot  )->get_int();

   return value.jl;

 #endif

 }

 Handle StackValueCollection::obj_at(int slot) const {

   return at(slot)->get_obj();

 }

 jfloat StackValueCollection::float_at(int slot) const {

   intptr_t res = at(slot)->get_int();

   return *((jfloat*) (&res));

 }

 jdouble StackValueCollection::double_at(int slot) const {

 #ifdef _LP64

   intptr_t res = at(slot+1)->get_int();

   return *((jdouble*) (&res));

 #else

   union {

     jdouble jd;

     jint    array[2];

   } value;

   // Interpreter stack is reversed in memory:

   // low memory location is in higher java local slot.

   value.array[0] = at(slot+1)->get_int();

   value.array[1] = at(slot  )->get_int();

   return value.jd;

 #endif

 }

 void StackValueCollection::set_int_at(int slot, jint value) {

   intptr_t val;

   *((jint*) (&val)) = value;

   at(slot)->set_int(val);

 }

 void StackValueCollection::set_long_at(int slot, jlong value) {

 #ifdef _LP64

   at(slot+1)->set_int(value);

 #else

   union {

     jlong jl;

     jint  array[2];

   } x;

   // Interpreter stack is reversed in memory:

   // low memory location is in higher java local slot.

   x.jl = value;

   at(slot+1)->set_int(x.array[0]);

   at(slot+0)->set_int(x.array[1]);

 #endif

 }

 void StackValueCollection::set_obj_at(int slot, Handle value) {

   at(slot)->set_obj(value);

 }

 void StackValueCollection::set_float_at(int slot, jfloat value) {

 #ifdef _LP64

   union {

     intptr_t jd;

     jint    array[2];

   } val;

   // Interpreter stores 32 bit floats in first half of 64 bit word.

   val.array[0] = *(jint*)(&value);

   val.array[1] = 0;

   at(slot)->set_int(val.jd);

 #else

   at(slot)->set_int(*(jint*)(&value));

 #endif

 }

 void StackValueCollection::set_double_at(int slot, jdouble value) {

 #ifdef _LP64

   at(slot+1)->set_int(*(intptr_t*)(&value));

 #else

   union {

     jdouble jd;

     jint    array[2];

   } x;

   // Interpreter stack is reversed in memory:

   // low memory location is in higher java local slot.

   x.jd = value;

   at(slot+1)->set_int(x.array[0]);

   at(slot+0)->set_int(x.array[1]);

 #endif

 }

 #ifndef PRODUCT

 void StackValueCollection::print() {

   for(int index = 0; index < size(); index++) {

     tty->print("\t  %2d ", index);

     at(index)->print_on(tty);

     if( at(index  )->type() == T_INT &&

         index+1 < size() &&

         at(index+1)->type() == T_INT ) {

       tty->print("  " INT64_FORMAT " (long)", long_at(index));

       tty->cr();

       tty->print("\t     %.15e (double)", double_at(index));

       tty->print("  " PTR64_FORMAT " (longhex)", long_at(index));

     }

     tty->cr();

   }

 }

 #endif