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fdc43cf151
This changes layout of the `TargetFunctionTypeFlags` to allocate 8 bits for flags, 8 bits for convesion and 16 bits for number of parameters. Documentation is updated accordingly.
31 lines
1.5 KiB
Plaintext
31 lines
1.5 KiB
Plaintext
// RUN: %target-swift-frontend -assume-parsing-unqualified-ownership-sil -emit-ir %s | %FileCheck %s
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import Swift
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// CHECK-LABEL: define{{( protected)?}} void @c_native_function_pointer(void ()*)
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sil @c_native_function_pointer : $@convention(c) (@convention(c) () -> ()) -> () {
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entry(%f : $@convention(c) () -> ()):
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return undef : $()
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}
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// CHECK-LABEL: define{{( protected)?}} swiftcc void @call_with_native_c_function_pointer(i8*)
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sil @call_with_native_c_function_pointer : $@convention(thin) (@convention(c) () -> ()) -> () {
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entry(%f : $@convention(c) () -> ()):
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%c = function_ref @c_native_function_pointer : $@convention(c) (@convention(c) () -> ()) -> ()
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%z = apply %c(%f) : $@convention(c) (@convention(c) () -> ()) -> ()
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return %z : $()
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}
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// CHECK-LABEL: define{{( protected)?}} swiftcc %swift.type* @c_function_pointer_metadata()
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sil @c_function_pointer_metadata : $@convention(thin) () -> @thick Any.Type {
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entry:
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// CHECK: call %swift.type* @_T0yyXCMa()
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%m = metatype $@thick (@convention(c) () -> ()).Type
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%a = init_existential_metatype %m : $@thick (@convention(c) () -> ()).Type, $@thick Any.Type
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return %a : $@thick Any.Type
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}
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// CHECK-LABEL: define linkonce_odr hidden %swift.type* @_T0yyXCMa()
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// -- 0x3000001 -- C convention, 1 argument
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// CHECK: call %swift.type* @swift_getFunctionTypeMetadata([[WORD:i(32|64)]] 196608, %swift.type** null, i32* null, %swift.type* getelementptr inbounds (%swift.full_type, %swift.full_type* @_T0ytN, i32 0, i32 1))
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