[SR-9504] Segfault when referencing self in init()

[swift-ci]

Previous ID	SR-9504
Radar	None
Original Reporter	sergiocampama (JIRA User)
Type	Bug
Status	Resolved
Resolution	Duplicate

Environment

Apple Swift version 4.2.1 (swiftlang-1000.11.42 clang-1000.11.45.1)

Additional Detail from JIRA

Votes	0
Component/s	Compiler
Labels	Bug, CompilerCrash
Assignee	None
Priority	Medium

md5: 7e722d71160f2e3ad76573ad6218efce

duplicates:

• SR-9451 Compiler crash SILFunctionTransform "DefiniteInitialization"

Issue Description:

class Crash {
{{ var pointer: Crash}}
{{ init() { }}pointer = self {{}}}
{{}}}

When running `swift crash.swift`, the swift compiler will segfault with the following error:

1. While running pass #53 SILFunctionTransform "DefiniteInitialization" on SILFunction "@$S5crash5CrashCACycfc".1. While running pass #53 SILFunctionTransform "DefiniteInitialization" on SILFunction "@$S5crash5CrashCACycfc". for 'init()' at [FILE]

[belkadan]

Wow, crashes on master too. @slavapestov, @gottesmm, we just saw one of these, right?

[slavapestov]

@belkadan your checkout might be out of date – I just fixed it