https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111075
Bug ID: 111075
Summary: ICE on g++.dg/torture/tail-padding1.C on darwin
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: fxcoudert at gcc dot gnu.org
Target Milestone: ---
ICE on valid C++ code, reduced from the test failure of
g++.dg/torture/tail-padding1.C observed on x86_64-apple-darwin20 (see for
example at
https://gcc.gnu.org/pipermail/gcc-testresults/2023-August/793205.html):
$ cat z.C
struct X { ~X() {} int n; char d; };
struct Y { Y(); char c[3]; };
struct Z : X, virtual Y { Z(); };
X f() { X nrvo; __builtin_memset(&nrvo, 0, sizeof(X)); return nrvo; }
Z::Z() : Y(), X(f()) {}
$ /tmp/irun/bin/g++ -Os z.C
z.C: In copy constructor ‘constexpr X::X(const X&)’:
z.C:1:8: internal compiler error: in cxx_eval_call_expression, at
cp/constexpr.cc:2918
1 | struct X { ~X() {} int n; char d; };
| ^
