441778 – sys-devel/clang-3.1 ICE's when a type with multiple copy-ctors is in a union

Bug 441778 - sys-devel/clang-3.1 ICE's when a type with multiple copy-ctors is in a union

Summary: sys-devel/clang-3.1 ICE's when a type with multiple copy-ctors is in a union

Status:	RESOLVED FIXED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	[OLD] Development (show other bugs)
Hardware:	All Linux

Importance:	Normal normal (vote)
Assignee:	Bernard Cafarelli

URL:	http://llvm.org/bugs/show_bug.cgi?id=...
Whiteboard:
Keywords:	PATCH

Depends on:
Blocks:

Reported:	2012-11-04 21:08 UTC by Ben Longbons
Modified:	2013-06-13 22:09 UTC (History)
CC List:	2 users (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
patch backported from trunk (0001-Backport-two-patches-from-trunk-to-3.1.patch,2.25 KB, patch) 2012-11-04 21:08 UTC, Ben Longbons	Details \| Diff
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Description Ben Longbons 2012-11-04 21:08:22 UTC

Created attachment 328354 [details, diff]
patch backported from trunk

Compiling the following code segfaults clang.

Note that putting nontrivial types in a union is a C++11 feature not implemented by clang 3.0, and it is fixed on trunk for 3.2

I've put the attached patch in /etc/portage/patches/sys-devel/clang/ and it resolves the issue for me.

Testcase:
// compile with -std=c++11
struct String
{
    String(const String&);
    String(String&);
};

union Impl
{
    String first;
};

Comment 1 Bernard Cafarelli gentoo-dev

2013-06-13 21:30:29 UTC

Thanks for the report and patch for those that used 3.1, marking fixed now that 3.2 (and soon 3.3) are in tree :)