| # Copyright (C) 2015 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 LArrayGet; |
| .super Ljava/lang/Object; |
| |
| |
| # Test phi with fixed-type ArrayGet as an input and a matching second input. |
| # The phi should be typed accordingly. |
| |
| ## CHECK-START: void ArrayGet.matchingFixedType(float[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.matchingFixedType(float[], float) builder (after) |
| ## CHECK-DAG: <<Arg1:f\d+>> ParameterValue |
| ## CHECK-DAG: <<Aget:f\d+>> ArrayGet |
| ## CHECK-DAG: {{f\d+}} Phi [<<Aget>>,<<Arg1>>] reg:0 |
| .method public static matchingFixedType([FF)V |
| .registers 8 |
| |
| const v0, 0x0 |
| const v1, 0x1 |
| |
| aget v0, p0, v0 # read value |
| add-float v2, v0, v1 # float use fixes type |
| |
| float-to-int v2, p1 |
| if-eqz v2, :after |
| move v0, p1 |
| :after |
| # v0 = Phi [ArrayGet, Arg1] => float |
| |
| invoke-static {}, Ljava/lang/System;->nanoTime()J # create an env use |
| return-void |
| .end method |
| |
| |
| # Test phi with fixed-type ArrayGet as an input and a conflicting second input. |
| # The phi should be eliminated due to the conflict. |
| |
| ## CHECK-START: void ArrayGet.conflictingFixedType(float[], int) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.conflictingFixedType(float[], int) builder (after) |
| ## CHECK-NOT: Phi |
| .method public static conflictingFixedType([FI)V |
| .registers 8 |
| |
| const v0, 0x0 |
| const v1, 0x1 |
| |
| aget v0, p0, v0 # read value |
| add-float v2, v0, v1 # float use fixes type |
| |
| if-eqz p1, :after |
| move v0, p1 |
| :after |
| # v0 = Phi [ArrayGet, Arg1] => conflict |
| |
| invoke-static {}, Ljava/lang/System;->nanoTime()J # create an env use |
| return-void |
| .end method |
| |
| |
| # Same test as the one above, only this time tests that type of ArrayGet is not |
| # changed. |
| |
| ## CHECK-START: void ArrayGet.conflictingFixedType2(int[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.conflictingFixedType2(int[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.conflictingFixedType2(int[], float) builder (after) |
| ## CHECK: {{i\d+}} ArrayGet |
| .method public static conflictingFixedType2([IF)V |
| .registers 8 |
| |
| const v0, 0x0 |
| const v1, 0x1 |
| |
| aget v0, p0, v0 # read value |
| add-int v2, v0, v1 # int use fixes type |
| |
| float-to-int v2, p1 |
| if-eqz v2, :after |
| move v0, p1 |
| :after |
| # v0 = Phi [ArrayGet, Arg1] => conflict |
| |
| invoke-static {}, Ljava/lang/System;->nanoTime()J # create an env use |
| return-void |
| .end method |
| |
| |
| # Test phi with free-type ArrayGet as an input and a matching second input. |
| # The phi should be typed accordingly. |
| |
| ## CHECK-START: void ArrayGet.matchingFreeType(float[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.matchingFreeType(float[], float) builder (after) |
| ## CHECK-DAG: <<Arg1:f\d+>> ParameterValue |
| ## CHECK-DAG: <<Aget:f\d+>> ArrayGet |
| ## CHECK-DAG: ArraySet [{{l\d+}},{{i\d+}},<<Aget>>] |
| ## CHECK-DAG: {{f\d+}} Phi [<<Aget>>,<<Arg1>>] reg:0 |
| .method public static matchingFreeType([FF)V |
| .registers 8 |
| |
| const v0, 0x0 |
| const v1, 0x1 |
| |
| aget v0, p0, v0 # read value, should be float but has no typed use |
| aput v0, p0, v1 # aput does not disambiguate the type |
| |
| float-to-int v2, p1 |
| if-eqz v2, :after |
| move v0, p1 |
| :after |
| # v0 = Phi [ArrayGet, Arg1] => float |
| |
| invoke-static {}, Ljava/lang/System;->nanoTime()J # create an env use |
| return-void |
| .end method |
| |
| |
| # Test phi with free-type ArrayGet as an input and a conflicting second input. |
| # The phi will be kept and typed according to the second input despite the |
| # conflict. |
| |
| ## CHECK-START: void ArrayGet.conflictingFreeType(int[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| ## CHECK-START-DEBUGGABLE: void ArrayGet.conflictingFreeType(int[], float) builder (after) |
| ## CHECK-NOT: Phi |
| |
| .method public static conflictingFreeType([IF)V |
| .registers 8 |
| |
| const v0, 0x0 |
| const v1, 0x1 |
| |
| aget v0, p0, v0 # read value, should be int but has no typed use |
| aput v0, p0, v1 |
| |
| float-to-int v2, p1 |
| if-eqz v2, :after |
| move v0, p1 |
| :after |
| # v0 = Phi [ArrayGet, Arg1] => float |
| |
| invoke-static {}, Ljava/lang/System;->nanoTime()J # create an env use |
| return-void |
| .end method |
| |
| |
| # Test that real use of ArrayGet is propagated through phis. The following test |
| # case uses ArrayGet indirectly through two phis. It also creates an unused |
| # conflicting phi which should not be preserved. |
| |
| ## CHECK-START: void ArrayGet.conflictingPhiUses(int[], float, boolean, boolean, boolean) builder (after) |
| ## CHECK: InvokeStaticOrDirect env:[[{{i\d+}},{{i\d+}},_,{{i\d+}},{{.*}} |
| |
| .method public static conflictingPhiUses([IFZZZ)V |
| .registers 10 |
| |
| const v0, 0x0 |
| |
| # Create v1 = Phi [0x0, int ArrayGet] |
| move v1, v0 |
| if-eqz p2, :else1 |
| aget v1, p0, v0 |
| :else1 |
| |
| # Create v2 = Phi [v1, float] |
| move v2, v1 |
| if-eqz p3, :else2 |
| move v2, p1 |
| :else2 |
| |
| # Create v3 = Phi [v1, int] |
| move v3, v1 |
| if-eqz p4, :else3 |
| move v3, v0 |
| :else3 |
| |
| # Use v3 as int. |
| add-int/lit8 v4, v3, 0x2a |
| |
| # Create env uses. |
| invoke-static {}, Ljava/lang/System;->nanoTime()J |
| |
| return-void |
| .end method |
| |
| # Test that the right ArrayGet equivalent is always selected. The following test |
| # case uses ArrayGet as float through one phi and as an indeterminate type through |
| # another. The situation needs to be resolved so that only one instruction |
| # remains. |
| |
| ## CHECK-START: void ArrayGet.typedVsUntypedPhiUse(float[], float, boolean, boolean) builder (after) |
| ## CHECK: {{f\d+}} ArrayGet |
| |
| ## CHECK-START: void ArrayGet.typedVsUntypedPhiUse(float[], float, boolean, boolean) builder (after) |
| ## CHECK-NOT: {{i\d+}} ArrayGet |
| |
| .method public static typedVsUntypedPhiUse([FFZZ)V |
| .registers 10 |
| |
| const v0, 0x0 |
| |
| # v1 = float ArrayGet |
| aget v1, p0, v0 |
| |
| # Create v2 = Phi [v1, 0.0f] |
| move v2, v1 |
| if-eqz p2, :else1 |
| move v2, v0 |
| :else1 |
| |
| # Use v2 as float |
| cmpl-float v2, v2, p1 |
| |
| # Create v3 = Phi [v1, 0.0f] |
| move v3, v1 |
| if-eqz p3, :else2 |
| move v3, v0 |
| :else2 |
| |
| # Use v3 without a determinate type. |
| aput v3, p0, v0 |
| |
| return-void |
| .end method |