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334 lines
11 KiB
334 lines
11 KiB
# Copyright (C) 2015 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 LTestCase;
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.super Ljava/lang/Object;
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.field public static sField:I
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.method private static $inline$False()Z
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.registers 1
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const/4 v0, 0x0
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return v0
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.end method
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# Test a case when one entering TryBoundary is dead but the rest of the try
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# block remains live.
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## CHECK-START: int TestCase.testDeadEntry(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: Add
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## CHECK-START: int TestCase.testDeadEntry(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: TryBoundary kind:entry
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## CHECK: TryBoundary kind:entry
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## CHECK-NOT: TryBoundary kind:entry
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## CHECK-START: int TestCase.testDeadEntry(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK-NOT: Add
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## CHECK-START: int TestCase.testDeadEntry(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK: TryBoundary kind:entry
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## CHECK-NOT: TryBoundary kind:entry
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.method public static testDeadEntry(IIII)I
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.registers 5
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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if-eqz v0, :else
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add-int/2addr p0, p1
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:try_start
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div-int/2addr p0, p2
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:else
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div-int/2addr p0, p3
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:try_end
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.catchall {:try_start .. :try_end} :catch_all
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:return
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return p0
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:catch_all
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const/4 p0, -0x1
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goto :return
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.end method
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# Test a case when one exiting TryBoundary is dead but the rest of the try
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# block remains live.
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## CHECK-START: int TestCase.testDeadExit(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: Add
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## CHECK-START: int TestCase.testDeadExit(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: TryBoundary kind:exit
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## CHECK: TryBoundary kind:exit
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## CHECK-NOT: TryBoundary kind:exit
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## CHECK-START: int TestCase.testDeadExit(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK-NOT: Add
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## CHECK-START: int TestCase.testDeadExit(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK: TryBoundary kind:exit
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## CHECK-NOT: TryBoundary kind:exit
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.method public static testDeadExit(IIII)I
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.registers 5
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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:try_start
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div-int/2addr p0, p2
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if-nez v0, :else
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div-int/2addr p0, p3
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goto :return
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:try_end
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.catchall {:try_start .. :try_end} :catch_all
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:else
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add-int/2addr p0, p1
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:return
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return p0
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:catch_all
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const/4 p0, -0x1
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goto :return
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.end method
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# Test that a catch block remains live and consistent if some of try blocks
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# throwing into it are removed.
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## CHECK-START: int TestCase.testOneTryBlockDead(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: TryBoundary kind:entry
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## CHECK: TryBoundary kind:entry
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## CHECK-NOT: TryBoundary kind:entry
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## CHECK-START: int TestCase.testOneTryBlockDead(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK: TryBoundary kind:exit
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## CHECK: TryBoundary kind:exit
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## CHECK-NOT: TryBoundary kind:exit
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## CHECK-START: int TestCase.testOneTryBlockDead(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK: TryBoundary kind:entry
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## CHECK-NOT: TryBoundary kind:entry
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## CHECK-START: int TestCase.testOneTryBlockDead(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK: TryBoundary kind:exit
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## CHECK-NOT: TryBoundary kind:exit
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.method public static testOneTryBlockDead(IIII)I
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.registers 5
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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:try_start_1
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div-int/2addr p0, p2
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:try_end_1
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.catchall {:try_start_1 .. :try_end_1} :catch_all
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if-eqz v0, :return
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:try_start_2
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div-int/2addr p0, p3
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:try_end_2
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.catchall {:try_start_2 .. :try_end_2} :catch_all
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:return
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return p0
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:catch_all
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const/4 p0, -0x1
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goto :return
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.end method
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# Test that try block membership is recomputed. In this test case, the try entry
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# stored with the merge block gets deleted and SSAChecker would fail if it was
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# not replaced with the try entry from the live branch.
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.method public static testRecomputeTryMembership(IIII)I
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.registers 5
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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if-eqz v0, :else
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# Dead branch
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:try_start
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div-int/2addr p0, p1
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goto :merge
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# Live branch
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:else
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div-int/2addr p0, p2
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# Merge block. Make complex so it does not get merged with the live branch.
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:merge
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div-int/2addr p0, p3
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if-eqz p0, :else2
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div-int/2addr p0, p3
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:else2
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:try_end
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.catchall {:try_start .. :try_end} :catch_all
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:return
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return p0
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:catch_all
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const/4 p0, -0x1
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goto :return
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.end method
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# Test that DCE removes catch phi uses of instructions defined in dead try blocks.
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## CHECK-START: int TestCase.testCatchPhiInputs_DefinedInTryBlock(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK-DAG: <<Arg0:i\d+>> ParameterValue
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## CHECK-DAG: <<Arg1:i\d+>> ParameterValue
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## CHECK-DAG: <<Const0xa:i\d+>> IntConstant 10
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## CHECK-DAG: <<Const0xb:i\d+>> IntConstant 11
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## CHECK-DAG: <<Const0xc:i\d+>> IntConstant 12
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## CHECK-DAG: <<Const0xd:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const0xe:i\d+>> IntConstant 14
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## CHECK-DAG: <<Const0xf:i\d+>> IntConstant 15
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## CHECK-DAG: <<Const0x10:i\d+>> IntConstant 16
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## CHECK-DAG: <<Const0x11:i\d+>> IntConstant 17
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## CHECK-DAG: <<Add:i\d+>> Add [<<Arg0>>,<<Arg1>>]
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## CHECK-DAG: <<Phi:i\d+>> Phi [<<Add>>,<<Const0xf>>] reg:3 is_catch_phi:false
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## CHECK-DAG: Phi [<<Const0xa>>,<<Const0xb>>,<<Const0xd>>] reg:1 is_catch_phi:true
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## CHECK-DAG: Phi [<<Add>>,<<Const0xc>>,<<Const0xe>>] reg:2 is_catch_phi:true
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## CHECK-DAG: Phi [<<Phi>>,<<Const0x10>>,<<Const0x11>>] reg:3 is_catch_phi:true
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## CHECK-START: int TestCase.testCatchPhiInputs_DefinedInTryBlock(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK-DAG: <<Const0xb:i\d+>> IntConstant 11
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## CHECK-DAG: <<Const0xc:i\d+>> IntConstant 12
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## CHECK-DAG: <<Const0xd:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const0xe:i\d+>> IntConstant 14
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## CHECK-DAG: <<Const0x10:i\d+>> IntConstant 16
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## CHECK-DAG: <<Const0x11:i\d+>> IntConstant 17
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## CHECK-DAG: Phi [<<Const0xb>>,<<Const0xd>>] reg:1 is_catch_phi:true
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## CHECK-DAG: Phi [<<Const0xc>>,<<Const0xe>>] reg:2 is_catch_phi:true
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## CHECK-DAG: Phi [<<Const0x10>>,<<Const0x11>>] reg:3 is_catch_phi:true
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.method public static testCatchPhiInputs_DefinedInTryBlock(IIII)I
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.registers 8
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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if-eqz v0, :else
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shr-int/2addr p2, p3
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:try_start
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const v1, 0xa # dead catch phi input, defined in entry block (HInstruction)
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add-int v2, p0, p1 # dead catch phi input, defined in the dead block (HInstruction)
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move v3, v2
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if-eqz v3, :define_phi
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const v3, 0xf
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:define_phi
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# v3 = Phi [Add, 0xf] # dead catch phi input, defined in the dead block (HPhi)
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div-int/2addr p0, v2
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:else
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const v1, 0xb # live catch phi input
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const v2, 0xc # live catch phi input
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const v3, 0x10 # live catch phi input
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div-int/2addr p0, p3
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const v1, 0xd # live catch phi input
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const v2, 0xe # live catch phi input
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const v3, 0x11 # live catch phi input
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div-int/2addr p0, p1
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:try_end
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.catchall {:try_start .. :try_end} :catch_all
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:return
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return p0
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:catch_all
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sub-int p0, v1, v2 # use catch phi values
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sub-int p0, p0, v3 # use catch phi values
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goto :return
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.end method
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# Test that DCE does not remove catch phi uses of instructions defined outside
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# dead try blocks.
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## CHECK-START: int TestCase.testCatchPhiInputs_DefinedOutsideTryBlock(int, int, int, int) dead_code_elimination$after_inlining (before)
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## CHECK-DAG: <<Const0xa:i\d+>> IntConstant 10
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## CHECK-DAG: <<Const0xb:i\d+>> IntConstant 11
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## CHECK-DAG: <<Const0xc:i\d+>> IntConstant 12
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## CHECK-DAG: <<Const0xd:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const0xe:i\d+>> IntConstant 14
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## CHECK-DAG: <<Const0xf:i\d+>> IntConstant 15
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## CHECK-DAG: Phi [<<Const0xa>>,<<Const0xb>>,<<Const0xd>>] reg:1 is_catch_phi:true
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## CHECK-DAG: Phi [<<Const0xf>>,<<Const0xc>>,<<Const0xe>>] reg:2 is_catch_phi:true
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## CHECK-START: int TestCase.testCatchPhiInputs_DefinedOutsideTryBlock(int, int, int, int) dead_code_elimination$after_inlining (after)
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## CHECK-DAG: <<Const0xa:i\d+>> IntConstant 10
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## CHECK-DAG: <<Const0xb:i\d+>> IntConstant 11
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## CHECK-DAG: <<Const0xc:i\d+>> IntConstant 12
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## CHECK-DAG: <<Const0xd:i\d+>> IntConstant 13
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## CHECK-DAG: <<Const0xe:i\d+>> IntConstant 14
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## CHECK-DAG: <<Const0xf:i\d+>> IntConstant 15
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## CHECK-DAG: Phi [<<Const0xa>>,<<Const0xb>>,<<Const0xd>>] reg:1 is_catch_phi:true
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## CHECK-DAG: Phi [<<Const0xf>>,<<Const0xc>>,<<Const0xe>>] reg:2 is_catch_phi:true
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.method public static testCatchPhiInputs_DefinedOutsideTryBlock(IIII)I
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.registers 7
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invoke-static {}, LTestCase;->$inline$False()Z
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move-result v0
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if-eqz v0, :else
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shr-int/2addr p2, p3
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:try_start
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const v1, 0xa # dead catch phi input, defined in entry block
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const v2, 0xf # dead catch phi input, defined in entry block
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div-int/2addr p0, v2
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:else
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const v1, 0xb # live catch phi input
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const v2, 0xc # live catch phi input
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div-int/2addr p0, p3
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const v1, 0xd # live catch phi input
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const v2, 0xe # live catch phi input
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div-int/2addr p0, p1
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:try_end
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.catchall {:try_start .. :try_end} :catch_all
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:return
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return p0
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:catch_all
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sub-int p0, v1, v2 # use catch phi values
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goto :return
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.end method
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