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// RUN: %target-swift-frontend -emit-ir %s -O | %FileCheck %s --check-prefix=OPTIMIZED
// RUN: %target-swift-frontend -emit-ir %s | %FileCheck %s
// RUN: %target-swift-frontend -emit-ir %s | %FileCheck %s --check-prefix=NEGATIVE
// RUN: %target-swift-frontend -emit-ir -primary-file %s | %FileCheck %s --check-prefix=PRIMARY
// Make sure that @_alwaysEmitIntoClient functions are lazily
// emitted in WMO builds.
// Both functions are eliminated in optimized builds; the first is inlined
// into the caller, and the second is eliminated since it was never called.
// OPTIMIZED-NOT: define weak_odr hidden swiftcc void @"$s20alwaysEmitIntoClient18referencedFunctionyyF"() {{.*}} {
// OPTIMIZED-NOT: define weak_odr hidden swiftcc void @"$s20alwaysEmitIntoClient20unreferencedFunctionyyF"() {{.*}} {
// The unreferenced function should be eliminated in an unoptimized WMO
// build too, since it was never referenced from inside the module.
// CHECK-LABEL: define linkonce_odr hidden swiftcc void @"$s20alwaysEmitIntoClient18referencedFunctionyyF"() {{.*}} {
// NEGATIVE-NOT: define linkonce_odr hidden swiftcc void @"$s20alwaysEmitIntoClient20unreferencedFunctionyyF"() {{.*}} {
// In non-WMO mode, both functions must be emitted since they could be
// referenced from other translation units.
// PRIMARY-LABEL: define weak_odr hidden swiftcc void @"$s20alwaysEmitIntoClient18referencedFunctionyyF"() {{.*}} {
// PRIMARY-LABEL: define weak_odr hidden swiftcc void @"$s20alwaysEmitIntoClient20unreferencedFunctionyyF"() {{.*}} {
@_alwaysEmitIntoClient public func referencedFunction() {}
@_alwaysEmitIntoClient public func unreferencedFunction() {}
public func referencesFunction() {
referencedFunction()
}
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