upload android base code part3

android/art/test/565-checker-irreducible-loop/smali/IrreducibleLoop.smali

@@ -0,0 +1,101 @@
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+.class public LIrreducibleLoop;
+
+.super Ljava/lang/Object;
+
+# Check that both the irreducible loop and the other loop entry
+# move the constant-folded value to where it's expected.
+
+## CHECK-START-X86: int IrreducibleLoop.test1(int, long) register (after)
+## CHECK-DAG:                     ParallelMove {{.*84->.*}} loop:none
+## CHECK-DAG:                     ParallelMove {{.*84->.*}} loop:{{B\d+}} irreducible:true
+.method public static test1(IJ)I
+   .registers 10
+   const/16 v6, 2
+   const/16 v4, 1
+   const-wide/16 v0, 42
+   add-long v2, v0, v0
+
+   if-eqz p0, :loop_entry
+   goto :other_loop_pre_entry
+
+   # The then part: beginning of the irreducible loop.
+   :loop_entry
+   if-eqz p0, :exit
+   cmp-long v6, v2, p1
+   :other_loop_entry
+   sub-int p0, p0, v4
+   goto :loop_entry
+
+   # The other block branching to the irreducible loop.
+   # In that block, v4 has no live range.
+   :other_loop_pre_entry
+   goto :other_loop_entry
+
+   :exit
+   return v6
+.end method
+
+# Check that the compiler does not crash when
+# a live interval is found while connecting siblings, but that
+# live interval is inactive at the desired position.
+
+## CHECK-START-X86: int IrreducibleLoop.test2(int, long) register (after)
+## CHECK-DAG:                     ParallelMove {{.*84->.*}} loop:none
+## CHECK-DAG:                     ParallelMove {{.*84->.*}} loop:{{B\d+}} irreducible:true
+.method public static test2(IJ)I
+   .registers 14
+   const/16 v6, 2
+   const/16 v4, 1
+   const-wide/16 v0, 42
+   const-wide/16 v8, 68
+   add-long v2, v0, v0
+
+   if-eqz p0, :loop_entry
+   goto :other_loop_pre_entry
+
+   # The then part: beginning of the irreducible loop.
+   :loop_entry
+   if-eqz p0, :exit
+   cmp-long v6, v2, p1
+   :other_loop_entry
+   sub-int p0, p0, v4
+   goto :loop_entry
+
+   # The other block branching to the irreducible loop.
+   :other_loop_pre_entry
+   # Make v2 have a register location.
+   sput-wide v2, LIrreducibleLoop;->myField:J
+   # Stress register allocator on x86 to split v2.
+   sput-wide v0, LIrreducibleLoop;->myField:J
+   sput-wide p1, LIrreducibleLoop;->myField:J
+   sput-wide v8, LIrreducibleLoop;->myField:J
+   if-eqz p0, :join
+   # Stress register allocator on x86 to split v2.
+   sput-wide p1, LIrreducibleLoop;->myField:J
+   sput-wide v8, LIrreducibleLoop;->myField:J
+   sput-wide v0, LIrreducibleLoop;->myField:J
+   # Last use of v2 before the irreducible loop, that
+   # will create an interval hole.
+   sput-wide v2, LIrreducibleLoop;->myField:J
+   :join
+   goto :other_loop_entry
+
+   :exit
+   return v6
+.end method
+
+.field public static volatile myField:J