| /* |
| * 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. |
| */ |
| |
| public class Main { |
| |
| /* |
| * Ensure an inlined static invoke explicitly triggers the |
| * initialization check of the called method's declaring class, and |
| * that the corresponding load class instruction does not get |
| * removed before register allocation & code generation. |
| */ |
| |
| /// CHECK-START: void Main.invokeStaticInlined() builder (after) |
| /// CHECK-DAG: <<LoadClass:l\d+>> LoadClass gen_clinit_check:false |
| /// CHECK-DAG: <<ClinitCheck:l\d+>> ClinitCheck [<<LoadClass>>] |
| /// CHECK-DAG: InvokeStaticOrDirect [{{[ij]\d+}},<<ClinitCheck>>] |
| |
| /// CHECK-START: void Main.invokeStaticInlined() inliner (after) |
| /// CHECK-DAG: <<LoadClass:l\d+>> LoadClass gen_clinit_check:false |
| /// CHECK-DAG: <<ClinitCheck:l\d+>> ClinitCheck [<<LoadClass>>] |
| |
| /// CHECK-START: void Main.invokeStaticInlined() inliner (after) |
| /// CHECK-NOT: InvokeStaticOrDirect |
| |
| // The following checks ensure the clinit check instruction added by |
| // the builder is pruned by the PrepareForRegisterAllocation, while |
| // the load class instruction is preserved. As the control flow |
| // graph is not dumped after (nor before) this step, we check the |
| // CFG as it is before the next pass (liveness analysis) instead. |
| |
| /// CHECK-START: void Main.invokeStaticInlined() liveness (before) |
| /// CHECK-DAG: LoadClass gen_clinit_check:true |
| |
| /// CHECK-START: void Main.invokeStaticInlined() liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| /// CHECK-NOT: InvokeStaticOrDirect |
| |
| static void invokeStaticInlined() { |
| ClassWithClinit1.$opt$inline$StaticMethod(); |
| } |
| |
| static class ClassWithClinit1 { |
| static { |
| System.out.println("Main$ClassWithClinit1's static initializer"); |
| } |
| |
| static void $opt$inline$StaticMethod() { |
| } |
| } |
| |
| /* |
| * Ensure a non-inlined static invoke eventually has an implicit |
| * initialization check of the called method's declaring class. |
| */ |
| |
| /// CHECK-START: void Main.invokeStaticNotInlined() builder (after) |
| /// CHECK: <<LoadClass:l\d+>> LoadClass gen_clinit_check:false |
| /// CHECK: <<ClinitCheck:l\d+>> ClinitCheck [<<LoadClass>>] |
| /// CHECK: InvokeStaticOrDirect [{{[ij]\d+}},<<ClinitCheck>>] |
| |
| /// CHECK-START: void Main.invokeStaticNotInlined() inliner (after) |
| /// CHECK: <<LoadClass:l\d+>> LoadClass gen_clinit_check:false |
| /// CHECK: <<ClinitCheck:l\d+>> ClinitCheck [<<LoadClass>>] |
| /// CHECK: InvokeStaticOrDirect [{{([ij]\d+,)?}}<<ClinitCheck>>] |
| |
| // The following checks ensure the clinit check and load class |
| // instructions added by the builder are pruned by the |
| // PrepareForRegisterAllocation. As the control flow graph is not |
| // dumped after (nor before) this step, we check the CFG as it is |
| // before the next pass (liveness analysis) instead. |
| |
| /// CHECK-START: void Main.invokeStaticNotInlined() liveness (before) |
| /// CHECK: InvokeStaticOrDirect clinit_check:implicit |
| |
| /// CHECK-START: void Main.invokeStaticNotInlined() liveness (before) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| static void invokeStaticNotInlined() { |
| ClassWithClinit2.$noinline$staticMethod(); |
| } |
| |
| static class ClassWithClinit2 { |
| static { |
| System.out.println("Main$ClassWithClinit2's static initializer"); |
| } |
| |
| static boolean doThrow = false; |
| |
| static void $noinline$staticMethod() { |
| if (doThrow) { |
| // Try defeating inlining. |
| throw new Error(); |
| } |
| } |
| } |
| |
| /* |
| * Ensure an inlined call to a static method whose declaring class |
| * is statically known to have been initialized does not require an |
| * explicit clinit check. |
| */ |
| |
| /// CHECK-START: void Main$ClassWithClinit3.invokeStaticInlined() builder (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$ClassWithClinit3.invokeStaticInlined() builder (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| /// CHECK-START: void Main$ClassWithClinit3.invokeStaticInlined() inliner (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| /// CHECK-NOT: InvokeStaticOrDirect |
| |
| static class ClassWithClinit3 { |
| static void invokeStaticInlined() { |
| // The invocation of invokeStaticInlined triggers the |
| // initialization of ClassWithClinit3, meaning that the |
| // hereinbelow call to $opt$inline$StaticMethod does not need a |
| // clinit check. |
| $opt$inline$StaticMethod(); |
| } |
| |
| static { |
| System.out.println("Main$ClassWithClinit3's static initializer"); |
| } |
| |
| static void $opt$inline$StaticMethod() { |
| } |
| } |
| |
| /* |
| * Ensure an non-inlined call to a static method whose declaring |
| * class is statically known to have been initialized does not |
| * require an explicit clinit check. |
| */ |
| |
| /// CHECK-START: void Main$ClassWithClinit4.invokeStaticNotInlined() builder (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$ClassWithClinit4.invokeStaticNotInlined() builder (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| /// CHECK-START: void Main$ClassWithClinit4.invokeStaticNotInlined() inliner (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$ClassWithClinit4.invokeStaticNotInlined() inliner (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| static class ClassWithClinit4 { |
| static void invokeStaticNotInlined() { |
| // The invocation of invokeStaticNotInlined triggers the |
| // initialization of ClassWithClinit4, meaning that the |
| // call to staticMethod below does not need a clinit |
| // check. |
| $noinline$staticMethod(); |
| } |
| |
| static { |
| System.out.println("Main$ClassWithClinit4's static initializer"); |
| } |
| |
| static boolean doThrow = false; |
| |
| static void $noinline$staticMethod() { |
| if (doThrow) { |
| // Try defeating inlining. |
| throw new Error(); |
| } |
| } |
| } |
| |
| /* |
| * Ensure an inlined call to a static method whose declaring class |
| * is a super class of the caller's class does not require an |
| * explicit clinit check. |
| */ |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit5.invokeStaticInlined() builder (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit5.invokeStaticInlined() builder (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit5.invokeStaticInlined() inliner (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| /// CHECK-NOT: InvokeStaticOrDirect |
| |
| static class ClassWithClinit5 { |
| static void $opt$inline$StaticMethod() { |
| } |
| |
| static { |
| System.out.println("Main$ClassWithClinit5's static initializer"); |
| } |
| } |
| |
| static class SubClassOfClassWithClinit5 extends ClassWithClinit5 { |
| static void invokeStaticInlined() { |
| ClassWithClinit5.$opt$inline$StaticMethod(); |
| } |
| } |
| |
| /* |
| * Ensure an non-inlined call to a static method whose declaring |
| * class is a super class of the caller's class does not require an |
| * explicit clinit check. |
| */ |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit6.invokeStaticNotInlined() builder (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit6.invokeStaticNotInlined() builder (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit6.invokeStaticNotInlined() inliner (after) |
| /// CHECK-DAG: InvokeStaticOrDirect |
| |
| /// CHECK-START: void Main$SubClassOfClassWithClinit6.invokeStaticNotInlined() inliner (after) |
| /// CHECK-NOT: LoadClass |
| /// CHECK-NOT: ClinitCheck |
| |
| static class ClassWithClinit6 { |
| static boolean doThrow = false; |
| |
| static void $noinline$staticMethod() { |
| if (doThrow) { |
| // Try defeating inlining. |
| throw new Error(); |
| } |
| } |
| |
| static { |
| System.out.println("Main$ClassWithClinit6's static initializer"); |
| } |
| } |
| |
| static class SubClassOfClassWithClinit6 extends ClassWithClinit6 { |
| static void invokeStaticNotInlined() { |
| ClassWithClinit6.$noinline$staticMethod(); |
| } |
| } |
| |
| |
| /* |
| * Verify that if we have a static call immediately after the load class |
| * we don't do generate a clinit check. |
| */ |
| |
| /// CHECK-START: void Main.noClinitBecauseOfInvokeStatic() liveness (before) |
| /// CHECK-DAG: <<IntConstant:i\d+>> IntConstant 0 |
| /// CHECK-DAG: <<LoadClass:l\d+>> LoadClass gen_clinit_check:false |
| /// CHECK-DAG: InvokeStaticOrDirect clinit_check:implicit |
| /// CHECK-DAG: StaticFieldSet [<<LoadClass>>,<<IntConstant>>] |
| |
| /// CHECK-START: void Main.noClinitBecauseOfInvokeStatic() liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void noClinitBecauseOfInvokeStatic() { |
| ClassWithClinit2.$noinline$staticMethod(); |
| ClassWithClinit2.doThrow = false; |
| } |
| |
| /* |
| * Verify that if the static call is after a field access, the load class |
| * will generate a clinit check. |
| */ |
| |
| /// CHECK-START: void Main.clinitBecauseOfFieldAccess() liveness (before) |
| /// CHECK-DAG: <<IntConstant:i\d+>> IntConstant 0 |
| /// CHECK-DAG: <<LoadClass:l\d+>> LoadClass gen_clinit_check:true |
| /// CHECK-DAG: StaticFieldSet [<<LoadClass>>,<<IntConstant>>] |
| /// CHECK-DAG: InvokeStaticOrDirect clinit_check:none |
| |
| /// CHECK-START: void Main.clinitBecauseOfFieldAccess() liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| static void clinitBecauseOfFieldAccess() { |
| ClassWithClinit2.doThrow = false; |
| ClassWithClinit2.$noinline$staticMethod(); |
| } |
| |
| /* |
| * Verify that LoadClass from const-class is not merged with |
| * later invoke-static (or it's ClinitCheck). |
| */ |
| |
| /// CHECK-START: void Main.constClassAndInvokeStatic(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:false |
| /// CHECK: InvokeStaticOrDirect clinit_check:implicit |
| |
| /// CHECK-START: void Main.constClassAndInvokeStatic(java.lang.Iterable) liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void constClassAndInvokeStatic(Iterable it) { |
| $opt$inline$ignoreClass(ClassWithClinit7.class); |
| ClassWithClinit7.someStaticMethod(it); |
| } |
| |
| static void $opt$inline$ignoreClass(Class c) { |
| } |
| |
| static class ClassWithClinit7 { |
| static { |
| System.out.println("Main$ClassWithClinit7's static initializer"); |
| } |
| |
| // Note: not inlined from constClassAndInvokeStatic() but fully inlined from main(). |
| static void someStaticMethod(Iterable it) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| |
| /* |
| * Verify that LoadClass from sget is not merged with later invoke-static. |
| */ |
| |
| /// CHECK-START: void Main.sgetAndInvokeStatic(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:true |
| /// CHECK: InvokeStaticOrDirect clinit_check:none |
| |
| /// CHECK-START: void Main.sgetAndInvokeStatic(java.lang.Iterable) liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void sgetAndInvokeStatic(Iterable it) { |
| $opt$inline$ignoreInt(ClassWithClinit8.value); |
| ClassWithClinit8.someStaticMethod(it); |
| } |
| |
| static void $opt$inline$ignoreInt(int i) { |
| } |
| |
| static class ClassWithClinit8 { |
| public static int value = 0; |
| static { |
| System.out.println("Main$ClassWithClinit8's static initializer"); |
| } |
| |
| // Note: not inlined from sgetAndInvokeStatic() but fully inlined from main(). |
| static void someStaticMethod(Iterable it) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| |
| /* |
| * Verify that LoadClass from const-class, ClinitCheck from sget and |
| * InvokeStaticOrDirect from invoke-static are not merged. |
| */ |
| |
| /// CHECK-START: void Main.constClassSgetAndInvokeStatic(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:false |
| /// CHECK: ClinitCheck |
| /// CHECK: InvokeStaticOrDirect clinit_check:none |
| |
| static void constClassSgetAndInvokeStatic(Iterable it) { |
| $opt$inline$ignoreClass(ClassWithClinit9.class); |
| $opt$inline$ignoreInt(ClassWithClinit9.value); |
| ClassWithClinit9.someStaticMethod(it); |
| } |
| |
| static class ClassWithClinit9 { |
| public static int value = 0; |
| static { |
| System.out.println("Main$ClassWithClinit9's static initializer"); |
| } |
| |
| // Note: not inlined from constClassSgetAndInvokeStatic() but fully inlined from main(). |
| static void someStaticMethod(Iterable it) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| |
| /* |
| * Verify that LoadClass from a fully-inlined invoke-static is not merged |
| * with InvokeStaticOrDirect from a later invoke-static to the same method. |
| */ |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaNonStatic(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:true |
| /// CHECK: InvokeStaticOrDirect clinit_check:none |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaNonStatic(java.lang.Iterable) liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void inlinedInvokeStaticViaNonStatic(Iterable it) { |
| inlinedInvokeStaticViaNonStaticHelper(null); |
| inlinedInvokeStaticViaNonStaticHelper(it); |
| } |
| |
| static void inlinedInvokeStaticViaNonStaticHelper(Iterable it) { |
| ClassWithClinit10.inlinedForNull(it); |
| } |
| |
| static class ClassWithClinit10 { |
| public static int value = 0; |
| static { |
| System.out.println("Main$ClassWithClinit10's static initializer"); |
| } |
| |
| static void inlinedForNull(Iterable it) { |
| if (it != null) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| } |
| |
| /* |
| * Check that the LoadClass from an invoke-static C.foo() doesn't get merged with |
| * an invoke-static inside C.foo(). This would mess up the stack walk in the |
| * resolution trampoline where we would have to load C (if C isn't loaded yet) |
| * which is not permitted there. |
| * |
| * Note: In case of failure, we would get an failed assertion during compilation, |
| * so we wouldn't really get to the checker tests below. |
| */ |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaStatic(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:true |
| /// CHECK: InvokeStaticOrDirect clinit_check:none |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaStatic(java.lang.Iterable) liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void inlinedInvokeStaticViaStatic(Iterable it) { |
| ClassWithClinit11.callInlinedForNull(it); |
| } |
| |
| static class ClassWithClinit11 { |
| public static int value = 0; |
| static { |
| System.out.println("Main$ClassWithClinit11's static initializer"); |
| } |
| |
| static void callInlinedForNull(Iterable it) { |
| inlinedForNull(it); |
| } |
| |
| static void inlinedForNull(Iterable it) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| |
| /* |
| * A test similar to inlinedInvokeStaticViaStatic() but doing the indirect invoke |
| * twice with the first one to be fully inlined. |
| */ |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaStaticTwice(java.lang.Iterable) liveness (before) |
| /// CHECK: LoadClass gen_clinit_check:true |
| /// CHECK: InvokeStaticOrDirect clinit_check:none |
| |
| /// CHECK-START: void Main.inlinedInvokeStaticViaStaticTwice(java.lang.Iterable) liveness (before) |
| /// CHECK-NOT: ClinitCheck |
| |
| static void inlinedInvokeStaticViaStaticTwice(Iterable it) { |
| ClassWithClinit12.callInlinedForNull(null); |
| ClassWithClinit12.callInlinedForNull(it); |
| } |
| |
| static class ClassWithClinit12 { |
| public static int value = 0; |
| static { |
| System.out.println("Main$ClassWithClinit12's static initializer"); |
| } |
| |
| static void callInlinedForNull(Iterable it) { |
| inlinedForNull(it); |
| } |
| |
| static void inlinedForNull(Iterable it) { |
| if (it != null) { |
| // We're not inlining invoke-interface at the moment. |
| it.iterator(); |
| } |
| } |
| } |
| |
| // TODO: Add a test for the case of a static method whose declaring |
| // class type index is not available (i.e. when `storage_index` |
| // equals `DexFile::kDexNoIndex` in |
| // art::HGraphBuilder::BuildInvoke). |
| |
| public static void main(String[] args) { |
| invokeStaticInlined(); |
| invokeStaticNotInlined(); |
| ClassWithClinit3.invokeStaticInlined(); |
| ClassWithClinit4.invokeStaticNotInlined(); |
| SubClassOfClassWithClinit5.invokeStaticInlined(); |
| SubClassOfClassWithClinit6.invokeStaticNotInlined(); |
| Iterable it = new Iterable() { public java.util.Iterator iterator() { return null; } }; |
| constClassAndInvokeStatic(it); |
| sgetAndInvokeStatic(it); |
| constClassSgetAndInvokeStatic(it); |
| inlinedInvokeStaticViaNonStatic(it); |
| inlinedInvokeStaticViaStatic(it); |
| inlinedInvokeStaticViaStaticTwice(it); |
| } |
| } |
