diff options
| author | Harald Anlauf <anlauf@gmx.de> | 2023-05-17 20:39:18 +0200 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2023-05-17 21:53:00 +0200 |
| commit | 7bafe652dba9167b65e7b5ef24e77eceb49709ba (patch) | |
| tree | 834fe18af7ddf2aaa4fd78ca28ced9b9b1b0d22b | |
| parent | 883f1e25dc7907c9bb37f480b900336a050218f1 (diff) | |
| download | gcc-7bafe652dba9167b65e7b5ef24e77eceb49709ba.tar.gz | |
Fortran: set shape of initializers of zero-sized arrays [PR95374,PR104352]
gcc/fortran/ChangeLog:
PR fortran/95374
PR fortran/104352
* decl.cc (add_init_expr_to_sym): Set shape of initializer also for
zero-sized arrays, so that bounds violations can be detected later.
gcc/testsuite/ChangeLog:
PR fortran/95374
PR fortran/104352
* gfortran.dg/zero_sized_13.f90: New test.
| -rw-r--r-- | gcc/fortran/decl.cc | 3 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/zero_sized_13.f90 | 28 |
2 files changed, 29 insertions, 2 deletions
diff --git a/gcc/fortran/decl.cc b/gcc/fortran/decl.cc index 9c4b40d4ac4..4c578d01ad4 100644 --- a/gcc/fortran/decl.cc +++ b/gcc/fortran/decl.cc @@ -2239,8 +2239,7 @@ add_init_expr_to_sym (const char *name, gfc_expr **initp, locus *var_locus) && gfc_is_constant_expr (init) && (init->expr_type == EXPR_CONSTANT || init->expr_type == EXPR_STRUCTURE) - && spec_size (sym->as, &size) - && mpz_cmp_si (size, 0) > 0) + && spec_size (sym->as, &size)) { array = gfc_get_array_expr (init->ts.type, init->ts.kind, &init->where); diff --git a/gcc/testsuite/gfortran.dg/zero_sized_13.f90 b/gcc/testsuite/gfortran.dg/zero_sized_13.f90 new file mode 100644 index 00000000000..4035d458b32 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/zero_sized_13.f90 @@ -0,0 +1,28 @@ +! { dg-do compile } +! { dg-options "-w" } +! +! PR fortran/95374 +! PR fortran/104352 - Various ICEs for bounds violation with zero-sized arrays +! +! Contributed by G. Steinmetz + +program p + implicit none + integer :: i + integer, parameter :: a(0) = 0 + integer, parameter :: b(0:-5) = 0 + integer, parameter :: c(*) = [(a(i:i), i=0,0)] ! { dg-error "out of bounds" } + integer, parameter :: d(*) = [(b(i:i), i=1,1)] ! { dg-error "out of bounds" } + integer, parameter :: e(1) = [(a(i) , i=1,1)] ! { dg-error "out of bounds" } + integer, parameter :: f(1) = [(a(i:i), i=1,1)] ! { dg-error "out of bounds" } + integer :: g(1) = [(a(i:i), i=0,0)] ! { dg-error "out of bounds" } + integer :: h(1) = [(a(i:i), i=1,1)] ! { dg-error "out of bounds" } + print *, [(a(i:i), i=0,0)] ! { dg-error "out of bounds" } + print *, [(a(i:i), i=1,1)] ! { dg-error "out of bounds" } + print *, any (a(1:1) == 1) ! { dg-error "out of bounds" } + print *, all (a(0:0) == 1) ! { dg-error "out of bounds" } + print *, sum (a(1:1)) ! { dg-error "out of bounds" } + print *, iall (a(0:0)) ! { dg-error "out of bounds" } + print *, minloc (a(0:0),1) ! { dg-error "out of bounds" } + print *, dot_product(a(1:1),a(1:1)) ! { dg-error "out of bounds" } +end |