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6a020f8f15
The main point of this change is to make sure that a shared function always has a body: both, in the optimizer pipeline and in the swiftmodule file. This is important because the compiler always needs to emit code for a shared function. Shared functions cannot be referenced from outside the module. In several corner cases we missed to maintain this invariant which resulted in unresolved-symbol linker errors. As side-effect of this change we can drop the shared_external SIL linkage and the IsSerializable flag, which simplifies the serialization and linkage concept.
44 lines
1.4 KiB
Swift
44 lines
1.4 KiB
Swift
// RUN: %target-swift-emit-silgen %s | %FileCheck %s
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// CHECK-LABEL: sil hidden [thunk] [ossa] @pear : $@convention(c)
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// CHECK: function_ref @$s5cdecl5apple{{[_0-9a-zA-Z]*}}F
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// CHECK-LABEL: sil hidden [ossa] @$s5cdecl5apple{{[_0-9a-zA-Z]*}}F
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@_cdecl("pear")
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func apple(_ f: @convention(c) (Int) -> Int) {
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}
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// CHECK-LABEL: sil hidden [ossa] @$s5cdecl16forceCEntryPoint{{[_0-9a-zA-Z]*}}F
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// CHECK: function_ref @grapefruit
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func forceCEntryPoint() {
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apple(orange)
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}
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// CHECK-LABEL: sil hidden [thunk] [ossa] @grapefruit : $@convention(c)
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// CHECK: function_ref @$s5cdecl6orange{{[_0-9a-zA-Z]*}}F
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// CHECK-LABEL: sil hidden [ossa] @$s5cdecl6orange{{[_0-9a-zA-Z]*}}F
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@_cdecl("grapefruit")
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func orange(_ x: Int) -> Int {
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return x
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}
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// CHECK-LABEL: sil [serialized] [thunk] [ossa] @cauliflower : $@convention(c)
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// CHECK: function_ref @$s5cdecl8broccoli{{[_0-9a-zA-Z]*}}F
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// CHECK-LABEL: sil [ossa] @$s5cdecl8broccoli{{[_0-9a-zA-Z]*}}F
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@_cdecl("cauliflower")
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public func broccoli(_ x: Int) -> Int {
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return x
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}
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// CHECK-LABEL: sil private [thunk] [ossa] @collard_greens : $@convention(c)
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// CHECK: function_ref @$s5cdecl4kale[[PRIVATE:.*]]
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// CHECK: sil private [ossa] @$s5cdecl4kale[[PRIVATE:.*]]
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@_cdecl("collard_greens")
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private func kale(_ x: Int) -> Int {
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return x
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}
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/* TODO: Handle error conventions
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@_cdecl("vomits")
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func barfs() throws {}
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*/
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