1 # Copyright (C) 2016 The Android Open Source Project 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 15 .class public LIrreducibleLoop; 16 17 .super Ljava/lang/Object; 18 19 ## CHECK-START: int IrreducibleLoop.test(int) GVN (before) 20 ## CHECK-DAG: LoadClass loop:none 21 ## CHECK-DAG: LoadClass loop:{{B\d+}} outer_loop:none 22 23 ## CHECK-START: int IrreducibleLoop.test(int) GVN (after) 24 ## CHECK-DAG: LoadClass loop:none 25 ## CHECK-DAG: LoadClass loop:{{B\d+}} outer_loop:none 26 .method public static test(I)I 27 .registers 2 28 29 sget v0, LIrreducibleLoop;->field1:I 30 sput v0, LIrreducibleLoop;->field2:I 31 32 if-eqz p0, :loop_entry 33 goto :exit 34 35 :loop_entry 36 if-eqz p0, :irreducible_loop_entry 37 sget v0, LIrreducibleLoop;->field2:I 38 sput v0, LIrreducibleLoop;->field1:I 39 if-eqz v0, :exit 40 goto :irreducible_other_loop_entry 41 42 :irreducible_loop_entry 43 if-eqz p0, :loop_back_edge 44 :irreducible_other_loop_entry 45 if-eqz v0, :loop_back_edge 46 goto :irreducible_loop_entry 47 48 :loop_back_edge 49 goto :loop_entry 50 51 :exit 52 return v0 53 .end method 54 55 .field public static field1:I 56 .field public static field2:I 57
