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42 lines
1.1 KiB
Swift
42 lines
1.1 KiB
Swift
// RUN: %target-swift-frontend -primary-file %s -parse-as-library -emit-sil -O | %FileCheck %s
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private func recFunc(_ x: Int32) -> Int32 {
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if x > 0 {
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return recFunc(x - 1)
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}
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return 0
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}
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// CHECK-LABEL: sil {{.*}}callit
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// CHECK: bb0:
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// CHECK: [[REF:%.*]] = function_ref @_T016inline_recursive7recFunc33_38E63D320CFF538A1F98BBC31453B1EBLLs5Int32VAEF
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// CHECK: [[INTLIT:%.*]] = integer_literal $Builtin.Int32, 3
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// CHECK: [[STRUCT:%.*]] = struct $Int32 ([[INTLIT]] : $Builtin.Int32)
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// CHECK: [[APPLY:%.*]] = apply [[REF]]([[STRUCT]])
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// CHECK: return [[APPLY]]
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func callit() -> Int32 {
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return recFunc(3)
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}
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private func recFuncManyCalls(_ x: Int32) -> Int32 {
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if x > 4 {
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return recFuncManyCalls(x - 1)
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+ recFuncManyCalls(x - 2)
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+ recFuncManyCalls(x - 3)
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+ recFuncManyCalls(x - 4)
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+ recFuncManyCalls(x - 5)
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}
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return 0
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}
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// CHECK-LABEL: sil hidden {{.*}}callother
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// CHECK: bb0:
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// CHECK: [[FN:%.*]] = function_ref {{.*}}recFuncManyCalls
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// CHECK: [[APPLY:%.*]] = apply [[FN]]
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// CHECK-NOT: apply
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// CHECK: return [[APPLY]]
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func callother() -> Int32 {
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return recFuncManyCalls(10)
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}
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