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25a071efc8
The intent for `@inline(always)` is to act as an optimization control. The user can rely on inlining to happen or the compiler will emit an error message. Because function values can be dynamic (closures, protocol/class lookup) this guarantee can only be upheld for direct function references. In cases where the optimizer can resolve dynamic function values the attribute shall be respected. rdar://148608854
72 lines
2.8 KiB
Plaintext
72 lines
2.8 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -inline -dce | %FileCheck %s -check-prefix=REGULAR
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// RUN: %target-sil-opt -enable-sil-verify-all %s -inline -dce -ignore-always-inline | %FileCheck %s -check-prefix=IGNORED
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sil_stage canonical
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// REGULAR: sil [Osize] @caller
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// IGNORED: sil [Osize] @caller
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sil [Osize] @caller : $@convention(thin) () -> () {
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bb0:
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// REGULAR-NOT: function_ref @callee
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// REGULAR: function_ref @foobar
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// IGNORED: function_ref @callee
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%d1 = function_ref @callee : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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%9999 = tuple()
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return %9999 : $()
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}
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sil @foobar : $@convention(thin) () -> ()
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// callee is "expensive" enough to not get inlined unless [heuristic_always_inline] is used
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// REGULAR: sil [heuristic_always_inline] [Osize] @callee
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// IGNORED: sil [heuristic_always_inline] [Osize] @callee
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sil [heuristic_always_inline] [Osize] @callee : $@convention(thin) () -> () {
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bb0:
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%d1 = function_ref @foobar : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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apply %d1() : $@convention(thin) () -> ()
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%9999 = tuple()
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return %9999 : $()
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}
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