https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125747
Bug ID: 125747
Summary: ICE in gfc_add_modify_loc, at fortran/trans.cc:229
since r16-5177
Product: gcc
Version: 17.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: mjires at gcc dot gnu.org
CC: jvdelisle at gcc dot gnu.org
Target Milestone: ---
Compiling following reduced testcase llvm/src/flang/test/Lower/loops.f90
results in ICE since r16-5177-g5e62a23cc3a64f which implemented this syntax
$ cat loops.f90
subroutine loop_test
integer a(5,5,5)
do concurrent (integer::i=1: .3)
enddo
do concurrent (integer::i=1: .3)
enddo
do concurrent (integer(2)::i=1: .3)
enddo
end
$ gfortran loops.f90
loops.f90:5:34:
5 | do concurrent (integer::i=1: .3)
| 1
internal compiler error: in gfc_add_modify_loc, at fortran/trans.cc:231
0x26b897d internal_error(char const*, ...)
/home/mjires/git/GCC/master/gcc/diagnostic-global-context.cc:787
0x26c4723 fancy_abort(char const*, int, char const*)
/home/mjires/git/GCC/master/gcc/diagnostics/context.cc:1813
0x93ce26 gfc_add_modify_loc(unsigned long, stmtblock_t*, tree_node*,
tree_node*)
/home/mjires/git/GCC/master/gcc/fortran/trans.cc:231
0x93cf48 gfc_add_modify(stmtblock_t*, tree_node*, tree_node*)
/home/mjires/git/GCC/master/gcc/fortran/trans.cc:243
0xa027ea gfc_trans_forall_loop
/home/mjires/git/GCC/master/gcc/fortran/trans-stmt.cc:4446
0xa027ea gfc_trans_nested_forall_loop
/home/mjires/git/GCC/master/gcc/fortran/trans-stmt.cc:4506
0xa12753 gfc_trans_forall_1
/home/mjires/git/GCC/master/gcc/fortran/trans-stmt.cc:5650
0xa130e6 gfc_trans_do_concurrent(gfc_code*)
/home/mjires/git/GCC/master/gcc/fortran/trans-stmt.cc:5791
0x93e6db trans_code
/home/mjires/git/GCC/master/gcc/fortran/trans.cc:2471
0x93fd82 gfc_trans_code(gfc_code*)
/home/mjires/git/GCC/master/gcc/fortran/trans.cc:2727
0x97f89c gfc_generate_function_code(gfc_namespace*)
/home/mjires/git/GCC/master/gcc/fortran/trans-decl.cc:8332
0x93fda3 gfc_generate_code(gfc_namespace*)
/home/mjires/git/GCC/master/gcc/fortran/trans.cc:2744
0x8e4899 translate_all_program_units
/home/mjires/git/GCC/master/gcc/fortran/parse.cc:7632
0x8e4899 gfc_parse_file()
/home/mjires/git/GCC/master/gcc/fortran/parse.cc:7962
0x93876f gfc_be_parse_file
/home/mjires/git/GCC/master/gcc/fortran/f95-lang.cc:249
/home/mjires/built/master/libexec/gcc/x86_64-pc-linux-gnu/17.0.0/f951 loops.f90
-quiet -dumpdir a- -dumpbase loops.f90 -dumpbase-ext .f90 -mtune=generic
-march=x86-64 -Ofast --param=dse-max-object-size=1948527779
-fintrinsic-modules-path
/home/mjires/built/master/lib/gcc/x86_64-pc-linux-gnu/17.0.0/finclude
-fpre-include=/usr/include/finclude/math-vector-fortran.h -o /tmp/ccInWaqS.s
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/home/mjires/built/master/libexec/gcc/x86_64-pc-linux-gnu/17.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --disable-bootstrap
--enable-languages=c,c++,fortran,lto --disable-multilib --disable-libsanitizer
--enable-checking : (reconfigured) /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --disable-bootstrap
--enable-languages=c,c++,fortran,lto --disable-multilib --disable-libsanitizer
--enable-checking : (reconfigured) /home/mjires/git/GCC/master/configure
--prefix=/home/mjires/built/master --disable-bootstrap --disable-multilib
--disable-libsanitizer --enable-checking --enable-languages=c,c++,fortran,lto
--no-create --no-recursion
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 17.0.0 20260611 (experimental) (GCC)
