Files
swift-mirror/test/SILOptimizer/devirt_speculate.swift
Tobias Stadler 4b0c0001bc [SIL] RemarkStreamer: Use mangled function names
Remarks emitted by LLVM use the mangled function name. Be consistent
with LLVM when serializing SIL remarks, so external tools can properly
filter for all remarks attributed to a certain function.
2025-06-12 18:29:35 +01:00

120 lines
4.5 KiB
Swift

// RUN: %target-swift-frontend %/s -parse-as-library -enable-spec-devirt -O -Xllvm -sil-print-types -emit-sil -save-optimization-record-path %t.opt.yaml | %FileCheck %s
// RUN: %FileCheck -check-prefix=YAML -input-file=%t.opt.yaml %s
// RUN: %target-swift-frontend %/s -parse-as-library -Osize -Xllvm -sil-print-types -emit-sil | %FileCheck %s --check-prefix=OSIZE
//
// Test speculative devirtualization.
// Test MaxNumSpeculativeTargets.
// rdar:23228386
public class Base {
public init() {}
public func foo() {}
}
@_optimize(none)
func blackHole<T : AnyObject>(_: T) {}
class Sub1 : Base {
override func foo() { blackHole(self) }
}
class Sub2 : Base {
override func foo() { blackHole(self) }
}
class Sub3 : Base {
override func foo() { blackHole(self) }
}
class Sub4 : Base {
override func foo() { blackHole(self) }
}
class Sub5 : Base {
override func foo() { blackHole(self) }
}
class Sub6 : Base {
override func foo() { blackHole(self) }
}
class Sub7 : Base {
override func foo() { blackHole(self) }
}
// CHECK: @$s16devirt_speculate28testMaxNumSpeculativeTargetsyyAA4BaseCF
// CHECK: bb0(%0 : $Base):
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Base, bb2, bb3
// CHECK: bb2([[CASTED:%.*]]):
// CHECK: br bb1
// CHECK: bb3:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub1, bb4, bb5
// CHECK: bb4([[CASTED:%.*]] : $Sub1):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub1>([[CASTED]])
// CHECK: br bb1
// CHECK: bb5:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub2, bb6, bb7
// CHECK: bb6([[CASTED:%.*]] : $Sub2):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub2>([[CASTED]])
// CHECK: br bb1
// CHECK: bb7:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub3, bb8, bb9
// CHECK: bb8([[CASTED:%.*]] : $Sub3):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub3>([[CASTED]])
// CHECK: br bb1
// CHECK: bb9:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub4, bb10, bb11
// CHECK: bb10([[CASTED:%.*]] : $Sub4):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub4>([[CASTED]])
// CHECK: br bb1
// CHECK: bb11:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub5, bb12, bb13
// CHECK: bb12([[CASTED:%.*]] : $Sub5):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub5>([[CASTED]])
// CHECK: br bb1
// CHECK: bb13:
// CHECK: checked_cast_br [exact] Base in %0 : $Base to Sub6, bb14, bb15
// CHECK: bb14([[CASTED:%.*]] : $Sub6):
// CHECK: [[FN:%.*]] = function_ref @$s16devirt_speculate9blackHoleyyxRlzClF : $@convention(thin) <τ_0_0 where τ_0_0 : AnyObject> (@guaranteed τ_0_0) -> ()
// CHECK: apply [[FN]]<Sub6>([[CASTED]])
// CHECK: br bb1
// CHECK: bb15:
// CHECK-NOT: checked_cast_br
// CHECK: %[[CM:[0-9]+]] = class_method %0 : $Base, #Base.foo : (Base) -> () -> (), $@convention(method) (@guaranteed Base) -> ()
// CHECK: apply %[[CM]](%0) : $@convention(method) (@guaranteed Base) -> ()
// YAML: Pass: sil-speculative-devirtualizer
// YAML-NEXT: Name: sil.PartialSpecDevirt
// YAML-NEXT: DebugLoc:
// YAML: File: {{.*}}/devirt_speculate.swift
// YAML: Line: 118
// YAML: Column: 5
// YAML-NEXT: Function: '$s16devirt_speculate28testMaxNumSpeculativeTargetsyyAA4BaseCF'
// YAML-NEXT: Args:
// YAML-NEXT: - String: 'Partially devirtualized call with run-time checks for '
// YAML-NEXT: - NumSubTypesChecked: '6'
// YAML-NEXT: - String: ' subclasses of '
// YAML-NEXT: - ClassType: Base
// YAML-NEXT: - String: ', number of subclasses not devirtualized: '
// YAML-NEXT: - NotHandledSubsNum: '1'
// YAML-NEXT: ...
// OSIZE: @$s16devirt_speculate28testMaxNumSpeculativeTargetsyyAA4BaseCF
// OSIZE-NOT: checked_cast_br [exact] Base in %0 : $Base to Base
// OSIZE-NOT: checked_cast_br [exact] Base in %0 : $Base to Sub
public func testMaxNumSpeculativeTargets(_ b: Base) {
b.foo()
}