https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115602
Bug ID: 115602
Summary: [15 Regression] ICE on liblapack-3.12.0: in
vect_schedule_slp_node, at tree-vect-slp.cc:9643
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at gcc dot gnu.org
Target Milestone: ---
Possibly recent regression observed on liblapack-3.12.0 on
r15-1566-gfd536b8412d4da.
Reduced down to the following:
* $ cat ztpmv.f.f
SUBROUTINE ZTPMV_64(AP,X)
COMPLEX*16 AP(*),X(*)
COMPLEX*16 TEMP
LOGICAL NOCONJ
LOGICAL LSAME_64
IF (LSAME_64(UPLO,'U') .AND.LSAME_64(UPLO,'L')) THEN
ELSE IF (LSAME_64(TRANS,'N') .AND.LSAME_64(DIAG,'N')) THEN
IF (LSAME_64(UPLO,'U')) THEN
IF (INCXINCXINCX.EQ.1) THEN
TEMP = X(JX)
IF (NOCONJ) THEN
TEMP = TEMP*AP(KK)
ELSE
TEMP = TEMP*DCONJG0
DO 130 K = 1,J
TEMP = TEMP + AP(K)*X(IX)
130 CONTINUE
END IF
X(JX) = TEMP
END IF
END IF
END IF
END
Crashing:
$ gfortran -O2 -frecursive -fdefault-integer-8 -c ztpmv.f.f -o bug.o -Wall
during GIMPLE pass: slp
ztpmv.f.f:1:25:
1 | SUBROUTINE ZTPMV_64(AP,X)
| ^
internal compiler error: in vect_schedule_slp_node, at tree-vect-slp.cc:9643
0x1f2a3be diagnostic_impl(rich_location*, diagnostic_metadata const*, int, char
const*, __va_list_tag (*) [1], diagnostic_t)
???:0
0x1f2aa98 internal_error(char const*, ...)
???:0
0x767124 fancy_abort(char const*, int, char const*)
???:0
0x74b0c3 vect_schedule_slp_node(vec_info*, _slp_tree*, _slp_instance*) [clone
.part.0] [clone .cold]
???:0
0x10d34f2 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d2989 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d2989 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d2989 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d2989 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d2989 vect_schedule_scc(vec_info*, _slp_tree*, _slp_instance*,
hash_map<_slp_tree*, slp_scc_info,
simple_hashmap_traits<default_hash_traits<_slp_tree*>, slp_scc_info> >&, int&,
vec<_slp_tree*, va_heap, vl_ptr>&)
???:0
0x10d39f0 vect_schedule_slp(vec_info*, vec<_slp_instance*, va_heap, vl_ptr>
const&)
???:0
0x10d61ca vect_slp_bbs(vec<basic_block_def*, va_heap, vl_ptr> const&, loop*)
???:0
0x10d7675 vect_slp_function(function*)
???:0
0x10deef5 (anonymous namespace)::pass_slp_vectorize::execute(function*)
???:0
$ gfortran -v
Using built-in specs.
COLLECT_GCC=/<<NIX>>/gfortran-15.0.0/bin/gfortran
COLLECT_LTO_WRAPPER=/<<NIX>>/gfortran-15.0.0/libexec/gcc/x86_64-unknown-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../source/configure --prefix=/<<NIX>>/gfortran-15.0.0
--with-gmp-include=/<<NIX>>/gmp-6.3.0-dev/include
--with-gmp-lib=/<<NIX>>/gmp-6.3.0/lib
--with-mpfr-include=/<<NIX>>/mpfr-4.2.1-dev/include
--with-mpfr-lib=/<<NIX>>/mpfr-4.2.1/lib --with-mpc=/<<NIX>>/libmpc-1.3.1
--with-native-system-header-dir=/<<NIX>>/glibc-2.39-52-dev/include
--with-build-sysroot=/
--with-gxx-include-dir=/<<NIX>>/gfortran-15.0.0/include/c++/15.0.0/
--program-prefix= --enable-lto --disable-libstdcxx-pch
--without-included-gettext --with-system-zlib --enable-checking=release
--enable-static --enable-languages=fortran --disable-multilib --enable-plugin
--disable-libcc1 --with-isl=/<<NIX>>/isl-0.20 --build=x86_64-unknown-linux-gnu
--host=x86_64-unknown-linux-gnu --target=x86_64-unknown-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.0 99999999 (experimental) (GCC)
