https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86353
Bug ID: 86353
Summary: g++7 -std=c++17 ICEs as internal compiler error: in
gimplify_expr, at gimplify.c:12201
Product: gcc
Version: 7.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at inbox dot ru
Target Milestone: ---
Original bug is reported at https://bugs.gentoo.org/659480 by Cyp
Slightly shortened version of reproducer:
// $ cat gcc-bug.ii
struct a {
a() = default;
};
template <typename b> struct c {
a d[3];
constexpr c(b);
};
template <typename b> constexpr c<b>::c(b) {}
c e(1);
$ bin/g++ -std=c++17 -c gcc-bug.ii
gcc-bug.ii: In function 'void __static_initialization_and_destruction_0(int,
int)':
gcc-bug.ii:9:6: internal compiler error: in gimplify_expr, at
gimplify.c:12201
c e(1);
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
This is a vanilla gcc built from gcc-7-branch
$ bin/g++ -v
Using built-in specs.
COLLECT_GCC=bin/g++
COLLECT_LTO_WRAPPER=/home/slyfox/dev/git/gcc-7-native-quick-installed/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.3.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-7/configure --enable-languages=c,c++ --disable-nls
--disable-bootstrap --with-multilib-list=m64
--prefix=/home/slyfox/dev/git/gcc-7-native-quick/../gcc-7-native-quick-installed
--disable-nls CFLAGS=-O2 CXXFLAGS=-O2
Thread model: posix
gcc version 7.3.1 20180628 (GCC)
