https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116412
Bug ID: 116412
Summary: [15 Regression] ICE on openblas-0.3.28: in
find_lattice_value, at tree-complex.cc:178
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at gcc dot gnu.org
Target Milestone: ---
Noticed an ICE today on openblas-0.3.28 when building with gcc-master
r15-2990-gf11bc0884467c6.
Minimized example:
$ cat chbev_2stage.f
SUBROUTINE CHBEV_2STAGE( AB, LDAB, W, Z, LDZ)
REAL W( * )
COMPLEX AB( LDAB, * ), Z( LDZ, * )
LOGICAL LOWER
IF( N.EQ.1 ) THEN
IF( LOWER ) THEN
W( 1 ) = ( AB( 1, 1 ) )
ELSE
W( 1 ) = REAL( AB( 1, 1 ) )
END IF
Z( 1, 1 ) = THEN
END IF
END
Crashing:
$ gfortran -O2 -Wall -c -o chbev_2stage.o chbev_2stage.f
chbev_2stage.f:7:21:
7 | W( 1 ) = ( AB( 1, 1 ) )
| 1
Warning: Possible change of value in conversion from COMPLEX(4) to REAL(4) at
(1) [-Wconversion]
chbev_2stage.f:5:9:
5 | IF( N.EQ.1 ) THEN
| ^
Warning: 'n' is used uninitialized [-Wuninitialized]
chbev_2stage.f:5:11:
5 | IF( N.EQ.1 ) THEN
| ^
note: 'n' was declared here
during GIMPLE pass: cplxlower
chbev_2stage.f:1:29:
1 | SUBROUTINE CHBEV_2STAGE( AB, LDAB, W, Z, LDZ)
| ^
internal compiler error: in find_lattice_value, at tree-complex.cc:178
0x2064a3c diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, int, char const*, __va_list_tag (*) [1],
diagnostic_t)
???:0
0x20711be internal_error(char const*, ...)
???:0
0x76d017 fancy_abort(char const*, int, char const*)
???:0
0x74932f complex_propagate::visit_phi(gphi*) [clone .cold]
???:0
0x10213f8 ssa_propagation_engine::simulate_stmt(gimple*)
???:0
0x10215ba ssa_propagation_engine::simulate_block(basic_block_def*)
???:0
0x1021a98 ssa_propagation_engine::ssa_propagate()
???:0
0xeb0be6 (anonymous namespace)::pass_lower_complex::execute(function*)
???:0
$ gfortran -v |& unnix
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)
