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      1 #
      2 # Copyright (C) 2015 The Android Open Source Project
      3 #
      4 # Licensed under the Apache License, Version 2.0 (the "License");
      5 # you may not use this file except in compliance with the License.
      6 # You may obtain a copy of the License at
      7 #
      8 #     http://www.apache.org/licenses/LICENSE-2.0
      9 #
     10 # Unless required by applicable law or agreed to in writing, software
     11 # distributed under the License is distributed on an "AS IS" BASIS,
     12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 # See the License for the specific language governing permissions and
     14 # limitations under the License.
     15 
     16 .class public LTest;
     17 
     18 .super Ljava/lang/Object;
     19 
     20 ## CHECK-START: int Test.synchronizedHashCode(java.lang.Object) dead_code_elimination (before)
     21 ## CHECK:         MonitorOperation [<<Param:l\d+>>] kind:enter
     22 ## CHECK:         MonitorOperation [<<Param>>]      kind:exit
     23 
     24 ## CHECK-START: int Test.synchronizedHashCode(java.lang.Object) dead_code_elimination (after)
     25 ## CHECK:         MonitorOperation [<<Param:l\d+>>] kind:enter
     26 ## CHECK:         MonitorOperation [<<Param>>]      kind:exit
     27 
     28 .method public static synchronizedHashCode(Ljava/lang/Object;)I
     29   .registers 2
     30 
     31   monitor-enter p0
     32   invoke-virtual {p0}, Ljava/lang/Object;->hashCode()I
     33   move-result v0
     34 
     35   # Must not get removed by DCE.
     36   monitor-exit p0
     37 
     38   return v0
     39 
     40 .end method
     41