mirror of
https://github.com/apple/swift.git
synced 2026-06-27 12:25:55 +02:00
Joe Shajrawi
b0fdadb3d2
The devirtualizer performs two optimizations: - If a value is known to have an exact class type, ie it is the result of an alloc_ref, we can devirtualize calls of *non-final* methods, because we know we’re calling that specific method and not an override. - If a method is known to be “effectively final” (it is not open, and there are no overrides inside the module) we can devirtualize it. However the second optimization needs to be disabled if a function is inlinable (F->getResilienceExpansion() == ResilienceExpansion::Minimal).
95 lines
4.4 KiB
Swift
95 lines
4.4 KiB
Swift
// Passing demangled name
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func="basic.foo" | %FileCheck %s -check-prefix=EXTRACT-FOO
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func="basic.X.test" | %FileCheck %s -check-prefix=EXTRACT-TEST
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func="basic.Vehicle.init" | %FileCheck %s -check-prefix=EXTRACT-INIT
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func="basic.Vehicle.now" | %FileCheck %s -check-prefix=EXTRACT-NOW
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// Passing mangled name
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func='$S5basic3fooSiyF' | %FileCheck %s -check-prefix=EXTRACT-FOO
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func='$S5basic1XV4testyyF' | %FileCheck %s -check-prefix=EXTRACT-TEST
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func='$S5basic7VehicleC1nACSi_tcfc' | %FileCheck %s -check-prefix=EXTRACT-INIT
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// RUN: %target-swift-frontend %s -g -module-name basic -emit-sib -o - | %target-sil-func-extractor -module-name basic -func='$S5basic7VehicleC3nowSiyF' | %FileCheck %s -check-prefix=EXTRACT-NOW
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// EXTRACT-FOO-NOT: sil hidden @$S5basic1XV4testyyF : $@convention(method) (X) -> () {
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// EXTRACT-FOO-NOT: sil hidden @$S5basic7VehicleC1nACSi_tcfc : $@convention(method) (Int, @guaranteed Vehicle) -> @owned Vehicle {
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// EXTRACT-FOO-NOT: sil hidden @$S5basic7VehicleC3nowSiyF : $@convention(method) (@guaranteed Vehicle) -> Int {
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// EXTRACT-FOO-LABEL: sil [serialized] @$S5basic3fooSiyF : $@convention(thin) () -> Int {
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// EXTRACT-FOO: bb0:
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// EXTRACT-FOO-NEXT: %0 = integer_literal
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// EXTRACT-FOO: %[[POS:.*]] = struct $Int
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// EXTRACT-FOO-NEXT: return %[[POS]] : $Int
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// EXTRACT-TEST-NOT: sil hidden @$S5basic3fooSiyF : $@convention(thin) () -> Int {
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// EXTRACT-TEST-NOT: sil hidden @$S5basic7VehicleC1nACSi_tcfc : $@convention(method) (Int, @guaranteed Vehicle) -> @owned Vehicle {
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// EXTRACT-TEST-NOT: sil hidden @$S5basic7VehicleC3nowSiyF : $@convention(method) (@guaranteed Vehicle) -> Int {
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// EXTRACT-TEST-LABEL: sil [serialized] @$S5basic1XV4testyyF : $@convention(method) (X) -> () {
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// EXTRACT-TEST: bb0(%0 : $X):
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// EXTRACT-TEST-NEXT: function_ref
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// EXTRACT-TEST-NEXT: function_ref @$S5basic3fooSiyF : $@convention(thin) () -> Int
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// EXTRACT-TEST-NEXT: apply
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// EXTRACT-TEST-NEXT: tuple
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// EXTRACT-TEST-NEXT: return
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// EXTRACT-INIT-NOT: sil [serialized] @$S5basic3fooSiyF : $@convention(thin) () -> Int {
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// EXTRACT-INIT-NOT: sil [serialized] @$S5basic1XV4testyyF : $@convention(method) (X) -> () {
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// EXTRACT-INIT-NOT: sil [serialized] @$S5basic7VehicleC3nowSiyF : $@convention(method) (@owned Vehicle) -> Int {
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// EXTRACT-INIT-LABEL: sil [serialized] @$S5basic7VehicleC1nACSi_tcfc : $@convention(method) (Int, @owned Vehicle) -> @owned Vehicle {
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// EXTRACT-INIT: bb0
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// EXTRACT-INIT-NEXT: ref_element_addr
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// EXTRACT-INIT-NEXT: begin_access [modify] [dynamic]
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// EXTRACT-INIT-NEXT: store
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// EXTRACT-INIT-NEXT: end_access
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// EXTRACT-INIT-NEXT: return
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// EXTRACT-NOW-NOT: sil [serialized] @$S5basic3fooSiyF : $@convention(thin) () -> Int {
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// EXTRACT-NOW-NOT: sil [serialized] @$S5basic1XV4testyyF : $@convention(method) (X) -> () {
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// EXTRACT-NOW-NOT: sil [serialized] @$S5basic7VehicleC1nACSi_tcfc : $@convention(method) (Int, @guaranteed Vehicle) -> @owned Vehicle {
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// EXTRACT-NOW-LABEL: sil [serialized] @$S5basic7VehicleC3nowSiyF : $@convention(method) (@guaranteed Vehicle) -> Int {
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// EXTRACT-NOW: bb0
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// EXTRACT-NOW: class_method
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// EXTRACT-NOW-NEXT: apply
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// EXTRACT-NOW-NEXT: return
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public struct X {
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@_versioned
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@_inlineable
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func test() {
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foo()
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}
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}
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@_fixed_layout
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public class Vehicle {
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@_versioned
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var numOfWheels: Int
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@_versioned
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@_inlineable
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init(n: Int) {
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numOfWheels = n
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}
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@_versioned
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@_inlineable
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func now() -> Int {
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return numOfWheels
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}
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}
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@discardableResult
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@_versioned
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@_inlineable
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func foo() -> Int {
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return 7
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}
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