https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99839
Bug ID: 99839
Summary: ICE in inline_matmul_assign, at
fortran/frontend-passes.c:4234
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Affects versions down to r7, at -O1+ :
$ cat z1.f90
program p
real :: x(3, 3) = 1.0
class(*), allocatable :: z(:, :)
z = matmul(x, x)
end
$ gfortran-11-20210328 -c z1.f90 -O0
$
$ gfortran-11-20210328 -c z1.f90 -O2
f951: internal compiler error: in inline_matmul_assign, at
fortran/frontend-passes.c:4234
0x7bf248 inline_matmul_assign
../../gcc/fortran/frontend-passes.c:4234
0x7bfd69 gfc_code_walker(gfc_code**, int (*)(gfc_code**, int*, void*), int
(*)(gfc_expr**, int*, void*), void*)
../../gcc/fortran/frontend-passes.c:5320
0x7c1172 optimize_namespace
../../gcc/fortran/frontend-passes.c:1500
0x7c154f gfc_run_passes(gfc_namespace*)
../../gcc/fortran/frontend-passes.c:169
0x6fd1a7 gfc_resolve(gfc_namespace*)
../../gcc/fortran/resolve.c:17436
0x6e56e4 resolve_all_program_units
../../gcc/fortran/parse.c:6290
0x6e56e4 gfc_parse_file()
../../gcc/fortran/parse.c:6542
0x7320ef gfc_be_parse_file
../../gcc/fortran/f95-lang.c:212
