https://gcc.gnu.org/bugzilla/show_bug.cgi?id=128347
Bug ID: 128347
Summary: [17 regression] ICE when building openvdb
(vect_schedule_slp_node, at tree-vect-slp.cc:12332)
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Reported by Paul Zander (negril).
I can't give a bt atm, someone else please add one:
```
$ g++ -c a.ii -O
during GIMPLE pass: slp
a.ii: In function ‘void TestBody()’:
a.ii:30:6: internal compiler error: in vect_schedule_slp_node, at
tree-vect-slp.cc:12332
30 | void TestBody() {
| ^~~~~~~~
/usr/libexec/gcc/x86_64-pc-linux-gnu/17/cc1plus -fpreprocessed a.ii -quiet
-dumpbase a.ii -dumpbase-ext .ii -mtune=generic -march=x86-64
-mtls-dialect=gnu2 -O2 -foffload-options=-fno-stack-protector -o
/tmp/ccZjsRus.s
```
```
struct vector {
~vector();
};
int expand_dx;
template <int SIZE> struct Tuple {
template <typename IdxT> int &operator[](IdxT i) { return mm[i]; }
int mm[SIZE];
};
struct Vec3 : Tuple<3> {
void x();
void operator-=(Vec3 v1) {
mm[0] -= v1[0];
mm[1] -= v1[1];
}
};
struct BBox {
Vec3 extents() {
Vec3 __trans_tmp_2, result(mMax);
result -= mMin;
__trans_tmp_2 = result;
return __trans_tmp_2;
}
void expand() {
for (int i = 0; i < 3; ++i)
mMin[i] -= mMax[i] += expand_dx;
}
Vec3 mMin, mMax;
};
int size();
void TestBody() {
vector points;
BBox region;
region.expand();
if (size())
region.extents().x();
}
```
```
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/17/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage.notmp/portage/sys-devel/gcc-17.0.9999/work/gcc-17.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/17
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/17/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/17/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/17/include/g++-v17
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/17/python
--enable-libphobos --enable-objc-gc
--enable-languages=c,c++,d,objc,obj-c++,fortran,ada,algol68,jit
--enable-obsolete --enable-secureplt --disable-werror --with-system-zlib
--enable-nls --without-included-gettext --disable-libunwind-exceptions
--enable-checking=yes,extra,rtl --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo Hardened 17.0.9999 p, commit
802b61ad307d41c25184a552dae1cb7a1e000dc1' --with-gcc-major-version-only
--enable-libstdcxx-time --enable-lto --disable-libstdcxx-pch
--enable-linker-build-id --enable-libada --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --with-tls=gnu2 --enable-multilib
--with-multilib-list=m32,mx32,m64 --disable-fixed-point --with-abi=m64
--enable-targets=all --enable-offload-defaulted
--enable-offload-targets=nvptx-none --enable-libgomp --disable-libssp
--disable-cet --enable-systemtap --enable-valgrind-annotations
--enable-valgrind-interop --disable-vtable-verify --disable-libvtv --with-zstd
--with-isl --disable-isl-version-check --enable-default-pie --enable-host-pie
--enable-host-bind-now --enable-default-ssp --disable-fixincludes
--with-gxx-libcxx-include-dir=/usr/include/c++/v1 --enable-host-shared
--enable-libgdiagnostics --with-build-config='bootstrap-O3 bootstrap-lto'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 17.0.0 20261029 (experimental)
85867b0c93563e0c07e381b2e2473fb311e0dc5f (Gentoo Hardened 17.0.9999 p, commit
802b61ad307d41c25184a552dae1cb7a1e000dc1)
```
