309 lines
8.7 KiB
Smali
309 lines
8.7 KiB
Smali
# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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.class public LMain2;
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.super Ljava/lang/Object;
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.source "Main2.java"
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# direct methods
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.method constructor <init>()V
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.registers 1
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.prologue
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.line 17
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invoke-direct {p0}, Ljava/lang/Object;-><init>()V
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return-void
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.end method
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# Elementary test negating a boolean. Verifies that blocks are merged and
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# empty branches removed.
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## CHECK-START: boolean Main2.BooleanNot(boolean) select_generator (before)
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## CHECK-DAG: <<Param:z\d+>> ParameterValue
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: If [<<Param>>]
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## CHECK-DAG: <<Phi:i\d+>> Phi [<<Const1>>,<<Const0>>]
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## CHECK-DAG: Return [<<Phi>>]
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## CHECK-START: boolean Main2.BooleanNot(boolean) select_generator (before)
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## CHECK: Goto
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## CHECK: Goto
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## CHECK: Goto
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## CHECK-NOT: Goto
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## CHECK-START: boolean Main2.BooleanNot(boolean) select_generator (after)
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## CHECK-DAG: <<Param:z\d+>> ParameterValue
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: <<NotParam:i\d+>> Select [<<Const1>>,<<Const0>>,<<Param>>]
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## CHECK-DAG: Return [<<NotParam>>]
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## CHECK-START: boolean Main2.BooleanNot(boolean) select_generator (after)
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## CHECK-NOT: If
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## CHECK-NOT: Phi
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## CHECK-START: boolean Main2.BooleanNot(boolean) select_generator (after)
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## CHECK: Goto
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## CHECK-NOT: Goto
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# The original java source of this method:
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#
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# return !x;
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#
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.method public static BooleanNot(Z)Z
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.registers 2
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.param p0, "x" # Z
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.prologue
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.line 70
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if-nez p0, :cond_4
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const/4 v0, 0x1
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:goto_3
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return v0
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:cond_4
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const/4 v0, 0x0
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goto :goto_3
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.end method
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# Program which further uses negated conditions.
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# Note that Phis are discovered retrospectively.
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## CHECK-START: boolean Main2.ValuesOrdered(int, int, int) select_generator (before)
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## CHECK-DAG: <<ParamX:i\d+>> ParameterValue
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## CHECK-DAG: <<ParamY:i\d+>> ParameterValue
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## CHECK-DAG: <<ParamZ:i\d+>> ParameterValue
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: <<CondXY:z\d+>> GreaterThan [<<ParamX>>,<<ParamY>>]
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## CHECK-DAG: If [<<CondXY>>]
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## CHECK-DAG: <<CondYZ:z\d+>> GreaterThan [<<ParamY>>,<<ParamZ>>]
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## CHECK-DAG: If [<<CondYZ>>]
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## CHECK-DAG: <<CondXYZ:z\d+>> NotEqual [<<PhiXY:i\d+>>,<<PhiYZ:i\d+>>]
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## CHECK-DAG: If [<<CondXYZ>>]
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## CHECK-DAG: Return [<<PhiXYZ:i\d+>>]
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## CHECK-DAG: <<PhiXY>> Phi [<<Const1>>,<<Const0>>]
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## CHECK-DAG: <<PhiYZ>> Phi [<<Const1>>,<<Const0>>]
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## CHECK-DAG: <<PhiXYZ>> Phi [<<Const1>>,<<Const0>>]
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## CHECK-START: boolean Main2.ValuesOrdered(int, int, int) select_generator (after)
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## CHECK-DAG: <<ParamX:i\d+>> ParameterValue
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## CHECK-DAG: <<ParamY:i\d+>> ParameterValue
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## CHECK-DAG: <<ParamZ:i\d+>> ParameterValue
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: <<CmpXY:z\d+>> GreaterThan [<<ParamX>>,<<ParamY>>]
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## CHECK-DAG: <<SelXY:i\d+>> Select [<<Const1>>,<<Const0>>,<<CmpXY>>]
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## CHECK-DAG: <<CmpYZ:z\d+>> GreaterThan [<<ParamY>>,<<ParamZ>>]
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## CHECK-DAG: <<SelYZ:i\d+>> Select [<<Const1>>,<<Const0>>,<<CmpYZ>>]
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## CHECK-DAG: <<CmpXYZ:z\d+>> NotEqual [<<SelXY>>,<<SelYZ>>]
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## CHECK-DAG: <<SelXYZ:i\d+>> Select [<<Const1>>,<<Const0>>,<<CmpXYZ>>]
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## CHECK-DAG: Return [<<SelXYZ>>]
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# The original java source of this method:
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#
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# return (x <= y) == (y <= z);
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#
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.method public static ValuesOrdered(III)Z
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.registers 7
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.param p0, "x" # I
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.param p1, "y" # I
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.param p2, "z" # I
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.prologue
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const/4 v0, 0x1
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const/4 v1, 0x0
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.line 166
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if-gt p0, p1, :cond_b
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move v3, v0
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:goto_5
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if-gt p1, p2, :cond_d
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move v2, v0
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:goto_8
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if-ne v3, v2, :cond_f
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:goto_a
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return v0
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:cond_b
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move v3, v1
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goto :goto_5
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:cond_d
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move v2, v1
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goto :goto_8
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:cond_f
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move v0, v1
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goto :goto_a
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.end method
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## CHECK-START: int Main2.NegatedCondition(boolean) select_generator (before)
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## CHECK-DAG: <<Param:z\d+>> ParameterValue
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## CHECK-DAG: <<Const42:i\d+>> IntConstant 42
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## CHECK-DAG: <<Const43:i\d+>> IntConstant 43
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## CHECK-DAG: If [<<Param>>]
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## CHECK-DAG: <<Phi:i\d+>> Phi [<<Const42>>,<<Const43>>]
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## CHECK-DAG: Return [<<Phi>>]
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## CHECK-START: int Main2.NegatedCondition(boolean) select_generator (after)
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## CHECK-DAG: <<Param:z\d+>> ParameterValue
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## CHECK-DAG: <<Const42:i\d+>> IntConstant 42
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## CHECK-DAG: <<Const43:i\d+>> IntConstant 43
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## CHECK-DAG: <<Select:i\d+>> Select [<<Const43>>,<<Const42>>,<<Param>>]
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## CHECK-DAG: Return [<<Select>>]
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## CHECK-START: int Main2.NegatedCondition(boolean) select_generator (after)
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## CHECK-NOT: BooleanNot
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# The original java source of this method:
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#
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# if (x != false) {
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# return 42;
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# } else {
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# return 43;
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# }
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#
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.method public static NegatedCondition(Z)I
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.registers 2
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.param p0, "x" # Z
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.prologue
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.line 188
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if-eqz p0, :cond_5
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.line 189
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const/16 v0, 0x2a
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.line 191
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:goto_4
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return v0
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:cond_5
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const/16 v0, 0x2b
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goto :goto_4
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.end method
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## CHECK-START: int Main2.MultiplePhis() select_generator (before)
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: <<Const13:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const42:i\d+>> IntConstant 42
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## CHECK-DAG: <<PhiX:i\d+>> Phi [<<Const0>>,<<Const13>>,<<Const42>>]
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## CHECK-DAG: <<PhiY:i\d+>> Phi [<<Const1>>,<<Add:i\d+>>,<<Add>>]
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## CHECK-DAG: <<Add>> Add [<<PhiY>>,<<Const1>>]
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## CHECK-DAG: <<Cond:z\d+>> LessThanOrEqual [<<Add>>,<<Const1>>]
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## CHECK-DAG: If [<<Cond>>]
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## CHECK-DAG: Return [<<PhiX>>]
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## CHECK-START: int Main2.MultiplePhis() select_generator (after)
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## CHECK-DAG: <<Const0:i\d+>> IntConstant 0
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## CHECK-DAG: <<Const1:i\d+>> IntConstant 1
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## CHECK-DAG: <<Const13:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const42:i\d+>> IntConstant 42
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## CHECK-DAG: <<PhiX:i\d+>> Phi [<<Const0>>,<<Select:i\d+>>]
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## CHECK-DAG: <<PhiY:i\d+>> Phi [<<Const1>>,<<Add:i\d+>>]
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## CHECK-DAG: <<Add>> Add [<<PhiY>>,<<Const1>>]
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## CHECK-DAG: <<Cond:z\d+>> LessThanOrEqual [<<Add>>,<<Const1>>]
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## CHECK-DAG: <<Select>> Select [<<Const13>>,<<Const42>>,<<Cond>>]
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## CHECK-DAG: Return [<<PhiX>>]
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# The original java source of this method:
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#
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# int x = 0;
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# int y = 1;
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# while (y++ < 10) {
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# if (y > 1) {
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# x = 13;
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# } else {
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# x = 42;
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# }
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# }
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# return x;
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#
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.method public static MultiplePhis()I
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.registers 4
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.prologue
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.line 290
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const/4 v0, 0x0
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.line 291
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.local v0, "x":I
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const/4 v1, 0x1
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.local v1, "y":I
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move v2, v1
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.line 292
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.end local v1 # "y":I
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.local v2, "y":I
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:goto_3
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add-int/lit8 v1, v2, 0x1
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.end local v2 # "y":I
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.restart local v1 # "y":I
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const/16 v3, 0xa
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if-ge v2, v3, :cond_14
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.line 293
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const/4 v3, 0x1
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if-le v1, v3, :cond_10
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.line 294
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const/16 v0, 0xd
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move v2, v1
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.end local v1 # "y":I
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.restart local v2 # "y":I
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goto :goto_3
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.line 296
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.end local v2 # "y":I
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.restart local v1 # "y":I
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:cond_10
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const/16 v0, 0x2a
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move v2, v1
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.end local v1 # "y":I
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.restart local v2 # "y":I
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goto :goto_3
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.line 299
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.end local v2 # "y":I
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.restart local v1 # "y":I
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:cond_14
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return v0
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.end method
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