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Do not run CCE if there were no apiVersionIsAtLeast calls

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Dmitry Petrov
2017-09-22 17:46:15 +03:00
parent fd16035bbd
commit 23d8b4cefe
1 changed files with 7 additions and 1 deletions
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compiler/backend/src/org/jetbrains/kotlin/codegen/optimization/ApiVersionCallsPreprocessingMethodTransformer.kt
+7 -1
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@@ -27,6 +27,8 @@ class ApiVersionCallsPreprocessingMethodTransformer(private val targetApiVersion
private val constantConditionElimination = ConstantConditionEliminationMethodTransformer() private val constantConditionElimination = ConstantConditionEliminationMethodTransformer()
override fun transform(internalClassName: String, methodNode: MethodNode) { override fun transform(internalClassName: String, methodNode: MethodNode) {
var hasFoldedCalls = false
for (insn in methodNode.instructions.toArray()) { for (insn in methodNode.instructions.toArray()) {
if (!insn.isApiVersionIsAtLeastCall()) continue if (!insn.isApiVersionIsAtLeastCall()) continue
@@ -39,6 +41,8 @@ class ApiVersionCallsPreprocessingMethodTransformer(private val targetApiVersion
val prev1 = prev2.previous ?: continue val prev1 = prev2.previous ?: continue
val epic = prev1.getIntConstValue() ?: continue val epic = prev1.getIntConstValue() ?: continue
hasFoldedCalls = true
val atLeastVersion = MavenComparableVersion("$epic.$major.$minor") val atLeastVersion = MavenComparableVersion("$epic.$major.$minor")
val replacementInsn = val replacementInsn =
@@ -55,7 +59,9 @@ class ApiVersionCallsPreprocessingMethodTransformer(private val targetApiVersion
} }
} }
constantConditionElimination.transform(internalClassName, methodNode) if (hasFoldedCalls) {
constantConditionElimination.transform(internalClassName, methodNode)
}
} }
private fun AbstractInsnNode.isApiVersionIsAtLeastCall(): Boolean = private fun AbstractInsnNode.isApiVersionIsAtLeastCall(): Boolean =