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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
45 lines
1.5 KiB
Plaintext
45 lines
1.5 KiB
Plaintext
// RUN: %target-sil-opt -enable-sil-verify-all %s -always-inline | %FileCheck %s
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sil @doSomething1 : $@convention(thin) () -> ()
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sil @doSomething2 : $@convention(thin) () -> ()
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sil @doSomething3 : $@convention(thin) () -> ()
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sil [ossa] [heuristic_always_inline] @do_inline_this : $@convention(thin) () -> () {
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bb0:
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%d1 = function_ref @doSomething1 : $@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 [ossa] @donot_inline_this : $@convention(thin) () -> () {
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bb0:
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%d1 = function_ref @doSomething2 : $@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 [ossa] @empty_function : $@convention(thin) () -> () {
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bb0:
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%9999 = tuple()
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return %9999 : $()
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}
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// CHECK-LABEL: sil [ossa] @caller : $@convention(thin) () -> () {
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// CHECK-NOT: function_ref @do_inline_this : $@convention(thin) () -> ()
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// CHECK: function_ref @donot_inline_this : $@convention(thin) () -> ()
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// CHECK: function_ref @empty_function : $@convention(thin) () -> ()
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// CHECK: } // end sil function 'caller'
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sil [ossa] @caller : $@convention(thin) () -> () {
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bb0:
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%c1 = function_ref @do_inline_this : $@convention(thin) () -> ()
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apply %c1() : $@convention(thin) () -> ()
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%c2 = function_ref @donot_inline_this : $@convention(thin) () -> ()
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apply %c2() : $@convention(thin) () -> ()
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%c3 = function_ref @empty_function : $@convention(thin) () -> ()
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apply %c3() : $@convention(thin) () -> ()
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%9999 = tuple()
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return %9999 : $()
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}
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