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The use of a synthesized C++ method allows us to avoid making a copy of self when invoking the base method from Swift
16 lines
651 B
Swift
16 lines
651 B
Swift
// RUN: %target-swift-emit-sil -I %S/Inputs -enable-experimental-cxx-interop %s -validate-tbd-against-ir=none | %FileCheck %s
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import Functions
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func testGetX() -> CInt {
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let derived = CopyTrackedDerivedClass(42)
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return derived.getX()
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}
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let _ = testGetX()
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// CHECK: sil shared @$sSo23CopyTrackedDerivedClassV4getXs5Int32VyF : $@convention(method) (@in_guaranteed CopyTrackedDerivedClass) -> Int32
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// CHECK: {{.*}}(%[[SELF_VAL:.*]] : $*CopyTrackedDerivedClass):
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// CHECK: function_ref @{{.*}}__synthesizedBaseCall_{{.*}} : $@convention(cxx_method) (@in_guaranteed CopyTrackedDerivedClass) -> Int32
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// CHECK-NEXT: apply %{{.*}}(%[[SELF_VAL]])
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