averello/swift-mirror
1
0
Fork 0
mirror of https://github.com/apple/swift.git synced 2025-12-14 20:36:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

[embedded] Fix an LLVMARCOpts crash by avoiding direct calls to swift_retain/swift_release

Browse Source
This commit is contained in:
Kuba Mracek
2023-10-18 14:44:18 -07:00
parent e4be36bb1f
commit 6900efe42c
2 changed files with 16 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
stdlib/public/core/EmbeddedRuntime.swift
View File

@@ -131,7 +131,9 @@ public func swift_isUniquelyReferenced_nonNull_native(object: UnsafeMutablePoint
@_silgen_name("swift_retain")
public func swift_retain(object: Builtin.RawPointer) -> Builtin.RawPointer {
return swift_retain_n(object: object, n: 1)
if Int(Builtin.ptrtoint_Word(object)) == 0 { return object }
let o = UnsafeMutablePointer<HeapObject>(object)
return swift_retain_n_(object: o, n: 1)._rawValue
}
// Cannot use UnsafeMutablePointer<HeapObject>? directly in the function argument or return value as it causes IRGen crashes
@@ -155,7 +157,9 @@ func swift_retain_n_(object: UnsafeMutablePointer<HeapObject>, n: UInt32) -> Uns
@_silgen_name("swift_release")
public func swift_release(object: Builtin.RawPointer) {
swift_release_n(object: object, n: 1)
if Int(Builtin.ptrtoint_Word(object)) == 0 { return }
let o = UnsafeMutablePointer<HeapObject>(object)
swift_release_n_(object: o, n: 1)
}
@_silgen_name("swift_release_n")