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| author | Harald Anlauf <anlauf@gmx.de> | 2021-12-07 21:34:31 +0100 |
|---|---|---|
| committer | Harald Anlauf <anlauf@gmx.de> | 2021-12-07 23:16:18 +0100 |
| commit | 9eec77c0df9e5c67454a2e8f83246104458ba4f0 (patch) | |
| tree | fa29641998df52565ca039d0d8afe1c1732587e0 | |
| parent | cf2cd61dce4f5f0cf9d72328396e7f949db18ddb (diff) | |
| download | gcc-9eec77c0df9e5c67454a2e8f83246104458ba4f0.zip gcc-9eec77c0df9e5c67454a2e8f83246104458ba4f0.tar.gz gcc-9eec77c0df9e5c67454a2e8f83246104458ba4f0.tar.bz2 | |
Fortran: perform array subscript checks only for valid INTEGER bounds
gcc/fortran/ChangeLog:
PR fortran/103607
* frontend-passes.c (do_subscript): Ensure that array bounds are
of type INTEGER before performing checks on array subscripts.
gcc/testsuite/ChangeLog:
PR fortran/103607
* gfortran.dg/pr103607.f90: New test.
| -rw-r--r-- | gcc/fortran/frontend-passes.c | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gfortran.dg/pr103607.f90 | 12 |
2 files changed, 16 insertions, 0 deletions
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c index 4764c83..57b24a1 100644 --- a/gcc/fortran/frontend-passes.c +++ b/gcc/fortran/frontend-passes.c @@ -2914,6 +2914,7 @@ do_subscript (gfc_expr **e) { if (ar->as->lower[i] && ar->as->lower[i]->expr_type == EXPR_CONSTANT + && ar->as->lower[i]->ts.type == BT_INTEGER && mpz_cmp (val, ar->as->lower[i]->value.integer) < 0) gfc_warning (warn, "Array reference at %L out of bounds " "(%ld < %ld) in loop beginning at %L", @@ -2923,6 +2924,7 @@ do_subscript (gfc_expr **e) if (ar->as->upper[i] && ar->as->upper[i]->expr_type == EXPR_CONSTANT + && ar->as->upper[i]->ts.type == BT_INTEGER && mpz_cmp (val, ar->as->upper[i]->value.integer) > 0) gfc_warning (warn, "Array reference at %L out of bounds " "(%ld > %ld) in loop beginning at %L", @@ -2938,6 +2940,7 @@ do_subscript (gfc_expr **e) { if (ar->as->lower[i] && ar->as->lower[i]->expr_type == EXPR_CONSTANT + && ar->as->lower[i]->ts.type == BT_INTEGER && mpz_cmp (val, ar->as->lower[i]->value.integer) < 0) gfc_warning (warn, "Array reference at %L out of bounds " "(%ld < %ld) in loop beginning at %L", @@ -2947,6 +2950,7 @@ do_subscript (gfc_expr **e) if (ar->as->upper[i] && ar->as->upper[i]->expr_type == EXPR_CONSTANT + && ar->as->upper[i]->ts.type == BT_INTEGER && mpz_cmp (val, ar->as->upper[i]->value.integer) > 0) gfc_warning (warn, "Array reference at %L out of bounds " "(%ld > %ld) in loop beginning at %L", diff --git a/gcc/testsuite/gfortran.dg/pr103607.f90 b/gcc/testsuite/gfortran.dg/pr103607.f90 new file mode 100644 index 0000000..a6a2c4f --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr103607.f90 @@ -0,0 +1,12 @@ +! { dg-do compile } +! PR fortran/103607 - ICE in do_subscript, at fortran/frontend-passes.c:2927 +! Contributed by G.Steinmetz + +program p + integer :: i, x(abs(2.)) ! { dg-error "must be of INTEGER type" } + do i = 1, 2 + x(i) = 0 + end do +end + +! { dg-prune-output "must have constant shape" } |