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66e7d8864f
Mainly this is done for array literals. This new optimization creates a statically initialized global variable which is the allocated object. The alloc_ref instruction is replaced by a global_value instruction. This optimization can give significant performance improvements for large array literals.
46 lines
841 B
Swift
46 lines
841 B
Swift
// RUN: %target-swift-frontend -O -Xllvm -sil-inline-generics=false -Xllvm -sil-disable-pass=GlobalOpt %s -emit-sil -sil-verify-all | %FileCheck %s
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// Make sure that we completely inline/devirtualize/substitute all the way down
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// to unknown1.
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// CHECK-LABEL: sil @main
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// CHECK: bb0({{.*}}):
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// CHECK: alloc_ref
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// CHECK: function_ref @unknown1
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// CHECK: apply
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// CHECK: apply
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// CHECK: return
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struct Int32 {}
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@_silgen_name("unknown1")
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func unknown1() -> ()
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protocol P {
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func doSomething(_ x : Int32)
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}
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struct X {}
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class B<T> : P {
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func doSomething(_ x : Int32) {
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unknown1()
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}
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}
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func doSomething(_ p : P, _ x : Int32) {
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p.doSomething(x)
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}
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func doSomething2<T : P>(_ t : T, _ x : Int32) {
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t.doSomething(x)
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}
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func driver() {
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var b2 = B<X>()
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var x = Int32()
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doSomething(b2, x)
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doSomething2(b2, x)
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}
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driver()
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