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Cache array length in for-in-array loop if possible

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If the range expression is not a local variable (which can be updated in
the loop body affecting loop behavior, see KT-21354), we can cache the
array length, thus turning a for-in-array loop into a simple optimizable
counter loop.

 #KT-21321 In Progress
This commit is contained in:
Dmitry Petrov
2017-11-24 17:46:54 +03:00
parent 328c67b9e8
commit e2fa613b70
10 changed files with 127 additions and 15 deletions
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compiler/tests/org/jetbrains/kotlin/codegen/BlackBoxCodegenTestGenerated.java
+12
View File
@@ -14537,6 +14537,18 @@ public class BlackBoxCodegenTestGenerated extends AbstractBlackBoxCodegenTest {
doTest(fileName);
}
@TestMetadata("forInArrayWithArrayPropertyUpdatedInLoopBody.kt")
public void testForInArrayWithArrayPropertyUpdatedInLoopBody() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/forInArrayWithArrayPropertyUpdatedInLoopBody.kt");
doTest(fileName);
}
@TestMetadata("forInArrayWithArrayVarUpdatedInLoopBody.kt")
public void testForInArrayWithArrayVarUpdatedInLoopBody() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/forInArrayWithArrayVarUpdatedInLoopBody.kt");
doTest(fileName);
}
@TestMetadata("forInRangeLiteralWithMixedTypeBounds.kt")
public void testForInRangeLiteralWithMixedTypeBounds() throws Exception {
String fileName = KotlinTestUtils.navigationMetadata("compiler/testData/codegen/box/ranges/forInRangeLiteralWithMixedTypeBounds.kt");