src/share/vm/opto/macro.cpp

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  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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "compiler/compileLog.hpp"
  27 #include "libadt/vectset.hpp"
  28 #include "opto/addnode.hpp"
  29 #include "opto/callnode.hpp"

  30 #include "opto/cfgnode.hpp"
  31 #include "opto/compile.hpp"
  32 #include "opto/connode.hpp"

  33 #include "opto/locknode.hpp"
  34 #include "opto/loopnode.hpp"
  35 #include "opto/macro.hpp"
  36 #include "opto/memnode.hpp"

  37 #include "opto/node.hpp"
  38 #include "opto/phaseX.hpp"
  39 #include "opto/rootnode.hpp"
  40 #include "opto/runtime.hpp"
  41 #include "opto/subnode.hpp"

  42 #include "opto/type.hpp"
  43 #include "runtime/sharedRuntime.hpp"
  44 
  45 
  46 //
  47 // Replace any references to "oldref" in inputs to "use" with "newref".
  48 // Returns the number of replacements made.
  49 //
  50 int PhaseMacroExpand::replace_input(Node *use, Node *oldref, Node *newref) {
  51   int nreplacements = 0;
  52   uint req = use->req();
  53   for (uint j = 0; j < use->len(); j++) {
  54     Node *uin = use->in(j);
  55     if (uin == oldref) {
  56       if (j < req)
  57         use->set_req(j, newref);
  58       else
  59         use->set_prec(j, newref);
  60       nreplacements++;
  61     } else if (j >= req && uin == NULL) {




  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  */
  24 
  25 #include "precompiled.hpp"
  26 #include "compiler/compileLog.hpp"
  27 #include "libadt/vectset.hpp"
  28 #include "opto/addnode.hpp"
  29 #include "opto/callnode.hpp"
  30 #include "opto/castnode.hpp"
  31 #include "opto/cfgnode.hpp"
  32 #include "opto/compile.hpp"
  33 #include "opto/constnode.hpp"
  34 #include "opto/convertnode.hpp"
  35 #include "opto/locknode.hpp"
  36 #include "opto/loopnode.hpp"
  37 #include "opto/macro.hpp"
  38 #include "opto/memnode.hpp"
  39 #include "opto/narrownode.hpp"
  40 #include "opto/node.hpp"
  41 #include "opto/phaseX.hpp"
  42 #include "opto/rootnode.hpp"
  43 #include "opto/runtime.hpp"
  44 #include "opto/subnode.hpp"
  45 #include "opto/threadnode.hpp"
  46 #include "opto/type.hpp"
  47 #include "runtime/sharedRuntime.hpp"
  48 
  49 
  50 //
  51 // Replace any references to "oldref" in inputs to "use" with "newref".
  52 // Returns the number of replacements made.
  53 //
  54 int PhaseMacroExpand::replace_input(Node *use, Node *oldref, Node *newref) {
  55   int nreplacements = 0;
  56   uint req = use->req();
  57   for (uint j = 0; j < use->len(); j++) {
  58     Node *uin = use->in(j);
  59     if (uin == oldref) {
  60       if (j < req)
  61         use->set_req(j, newref);
  62       else
  63         use->set_prec(j, newref);
  64       nreplacements++;
  65     } else if (j >= req && uin == NULL) {