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Eliminate redundant CHECKCAST instructions

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CHECKCAST is redundant if the corresponding static type exactly matches the target type.
CHECKCAST instructions to-be-reified should not be eliminated.

KT-14811 Unnecessary checkcast generated in parameterized functions
KT-14963 unnecessary checkcast java/lang/Object
This commit is contained in:
Dmitry Petrov
2017-02-15 11:36:49 +03:00
parent ec403bfdbc
commit a087ea559f
8 changed files with 91 additions and 5 deletions
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2
compiler/testData/codegen/bytecodeText/boxingOptimization/checkcastAndInstanceOf.kt vendored
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@@ -20,4 +20,4 @@ fun bar() {
// 0 valueOf
// 0 Value\s\(\)
// 2 INSTANCEOF
// 2 CHECKCAST
// 1 CHECKCAST