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13ff5abdb8
Implements SE-0460 -- the non-underscored version of @specialized. It allows to specify "internal" (not abi affecting) specializations. rdar://150033316
31 lines
1.1 KiB
Swift
31 lines
1.1 KiB
Swift
// RUN: %target-swift-frontend %s -O -emit-sil | %FileCheck %s
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// REQUIRES: optimized_stdlib
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extension Sequence where Element: BinaryInteger {
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@specialized(where Self == [Int])
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public func sum() -> Double {
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reduce(0) { $0 + Double($1) }
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}
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// CHECK: sil @$sST20prespecialize_publicSz7ElementRpzrlE3sumSdyF : $@convention(method) <Self where Self : Sequence, Self.Element : BinaryInteger> (@in_guaranteed Self) -> Double {
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// CHECK: bb0(%0 : $*Self):
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// CHECK: [[T1:%.*]] = metatype $@thick Self.Type
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// CHECK: [[T2:%.*]] = metatype $@thick Array<Int>.Type
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// CHECK: [[T3:%.*]] = unchecked_trivial_bit_cast [[T1]] to $Builtin.Word
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// CHECK: [[T4:%.*]] = unchecked_trivial_bit_cast [[T2]] to $Builtin.Word
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// CHECK: [[T5:%.*]] = builtin "cmp_eq_Word"([[T3]], [[T4]]) : $Builtin.Int1
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// CHECK: cond_br [[T5]], bb3, bb1
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// CHECK: bb1:
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// CHECK: [[T6:%.*]] = function_ref @$sSTsE6reduceyqd__qd___qd__qd___7ElementQztKXEtKlF
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// CHECK: apply {{.*}} [[T6]]<Self, Double>(
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// CHECK: br bb2(
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// CHECK: bb2({{.*}} : $Double):
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// CHECK: return
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// CHECK: bb3:
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// CHECK: %25 = unchecked_addr_cast %0 to $*Array<Int>
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}
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