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68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
// RUN: %empty-directory(%t)
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// RUN: %target-build-swift -emit-module -module-name ossa -o %t/ossa.swiftmodule %s
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// RUN: %target-sil-opt -sil-print-types %t/ossa.swiftmodule | %FileCheck %s
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sil_stage canonical
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import Builtin
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import Swift
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import SwiftShims
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class X {}
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// CHECK-LABEL: sil [serialized] [canonical] [ossa] @test_unchecked_ref_cast
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sil [serialized] [ossa] @test_unchecked_ref_cast : $@convention(thin) (@guaranteed AnyObject) -> @owned X {
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bb0(%0 : @guaranteed $AnyObject):
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// CHECK: %1 = unchecked_ref_cast %0 : $AnyObject to $X, forwarding: @unowned
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%1 = unchecked_ref_cast %0 : $AnyObject to $X, forwarding: @unowned
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%2 = copy_value %1 : $X
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return %2 : $X
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}
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struct Wrapper {
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var _k: X
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}
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// CHECK-LABEL: sil [serialized] [canonical] [ossa] @return_borrow_test : $@convention(method) (@in_guaranteed Wrapper) -> @guaranteed X {
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// CHECK: bb0(%0 : $*Wrapper):
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// CHECK: %1 = struct_element_addr %0 : $*Wrapper, #Wrapper._k
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// CHECK: %2 = load_borrow %1 : $*X
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// CHECK: return_borrow %2 : $X from_scopes (%2 : $X)
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// CHECK: }
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sil [serialized] [ossa] @return_borrow_test : $@convention(method) (@in_guaranteed Wrapper) -> @guaranteed X {
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bb0(%0 : $*Wrapper):
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%1 = struct_element_addr %0, #Wrapper._k
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%2 = load_borrow %1
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return_borrow %2 from_scopes (%2)
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}
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// CHECK-LABEL: sil [serialized] [canonical] [ossa] @reborrowTest :
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// CHECK: bb1:
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// CHECK-NEXT: {{%.*}} = begin_borrow %0 : $X
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// CHECK: bb2:
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// CHECK-NEXT: {{%.*}} = begin_borrow %0 : $X
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// CHECK: bb3([[ARG:%.*]] : @reborrow $X):
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// CHECK-NEXT: {{%.*}} = borrowed [[ARG]] : $X from (%0 : $X)
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// CHECK: } // end sil function 'reborrowTest'
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sil [serialized] [ossa] @reborrowTest : $@convention(thin) (@owned X) -> () {
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bb0(%0 : @owned $X):
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cond_br undef, bb1, bb2
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bb1:
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%b1 = begin_borrow %0 : $X
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br bb3(%b1 : $X)
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bb2:
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%b2 = begin_borrow %0 : $X
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br bb3(%b2 : $X)
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bb3(%r : @reborrow $X):
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%f = borrowed %r : $X from (%0 : $X)
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end_borrow %f : $X
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destroy_value %0 : $X
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%9999 = tuple()
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return %9999 : $()
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}
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