Bug#1118063: libobjc4: Invoking a method returning a floating point type or struct on a nil receiver returns garbage value
Matthias Klose wrote:
> On 10/14/25 16:35, Yavor Doganov wrote:
> > Forwarded: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121624
> please recheck with the latest Debian stable release, using GCC 14 as
> the default, also Debian unstable defaulting to GCC 15. There also is
> the gcc-snapshot package holding a snapshot from the trunk.
Already done; I'm reporting against the bookworm version since this is
the oldest supported release. This bug is present since "the beginning".
> I assume, we will need a reproducer to report that upstream.
It's already reported upstream, see the PR above. There are four
reproducers that are part of the patch proposed for the frontend [1]:
pr121624-1.m: Exhibits the bug for methods returning float.
pr121624-2.m: Exhibits the bug for methods returning a "simple" struct.
pr121624-3.m: Exhibits the bug for methods returning a "complex" struct.
pr121624-4.m: Tests the evaluation order.
1, 2, 3 fail with all GCC versions (including gcc-snapshot) and -4
fails on amd64 and i386. They all pass with the patch applied (see
the list of tested targets in the patch header).
[1] https://gcc.gnu.org/bugzilla/attachment.cgi?id=62434
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