aboutsummaryrefslogtreecommitdiff
path: root/gcc/fortran/data.c
diff options
context:
space:
mode:
authorNicolas Koenig <koenigni@student.ethz.ch>2017-05-14 01:38:36 +0200
committerNicolas Koenig <koenigni@gcc.gnu.org>2017-05-13 23:38:36 +0000
commit28ae01cd23d05ce79307db054782e576ab01f3b7 (patch)
tree3ca978cfd162f79396bf4315f9080c971680cedb /gcc/fortran/data.c
parent364490206eaee4e4da9f66e63169cc0c0ddfe40e (diff)
downloadgcc-28ae01cd23d05ce79307db054782e576ab01f3b7.zip
gcc-28ae01cd23d05ce79307db054782e576ab01f3b7.tar.gz
gcc-28ae01cd23d05ce79307db054782e576ab01f3b7.tar.bz2
re PR fortran/80442 (Rejects DATA statement with array slice)
2017-05-09 Nicolas Koenig <koenigni@student.ethz.ch> PR fortran/80442 * array.c (gfc_ref_dimen_size): Simplify stride expression * data.c (gfc_advance_section): Simplify start, end and stride expressions (gfc_advance_section): Simplify start and end expressions (gfc_get_section_index): Simplify start expression 2017-05-09 Nicolas Koenig <koenigni@student.ethz.ch> PR fortran/80442 * gfortran.dg/impl_do_var_data.f90: New Test From-SVN: r248012
Diffstat (limited to 'gcc/fortran/data.c')
-rw-r--r--gcc/fortran/data.c40
1 files changed, 31 insertions, 9 deletions
diff --git a/gcc/fortran/data.c b/gcc/fortran/data.c
index 184e53d..587161f 100644
--- a/gcc/fortran/data.c
+++ b/gcc/fortran/data.c
@@ -539,6 +539,7 @@ gfc_advance_section (mpz_t *section_index, gfc_array_ref *ar,
mpz_t tmp;
bool forwards;
int cmp;
+ gfc_expr *start, *end, *stride;
for (i = 0; i < ar->dimen; i++)
{
@@ -547,12 +548,16 @@ gfc_advance_section (mpz_t *section_index, gfc_array_ref *ar,
if (ar->stride[i])
{
+ stride = gfc_copy_expr(ar->stride[i]);
+ if(!gfc_simplify_expr(stride, 1))
+ gfc_internal_error("Simplification error");
mpz_add (section_index[i], section_index[i],
- ar->stride[i]->value.integer);
- if (mpz_cmp_si (ar->stride[i]->value.integer, 0) >= 0)
- forwards = true;
- else
- forwards = false;
+ stride->value.integer);
+ if (mpz_cmp_si (stride->value.integer, 0) >= 0)
+ forwards = true;
+ else
+ forwards = false;
+ gfc_free_expr(stride);
}
else
{
@@ -561,7 +566,13 @@ gfc_advance_section (mpz_t *section_index, gfc_array_ref *ar,
}
if (ar->end[i])
- cmp = mpz_cmp (section_index[i], ar->end[i]->value.integer);
+ {
+ end = gfc_copy_expr(ar->end[i]);
+ if(!gfc_simplify_expr(end, 1))
+ gfc_internal_error("Simplification error");
+ cmp = mpz_cmp (section_index[i], end->value.integer);
+ gfc_free_expr(end);
+ }
else
cmp = mpz_cmp (section_index[i], ar->as->upper[i]->value.integer);
@@ -569,7 +580,13 @@ gfc_advance_section (mpz_t *section_index, gfc_array_ref *ar,
{
/* Reset index to start, then loop to advance the next index. */
if (ar->start[i])
- mpz_set (section_index[i], ar->start[i]->value.integer);
+ {
+ start = gfc_copy_expr(ar->start[i]);
+ if(!gfc_simplify_expr(start, 1))
+ gfc_internal_error("Simplification error");
+ mpz_set (section_index[i], start->value.integer);
+ gfc_free_expr(start);
+ }
else
mpz_set (section_index[i], ar->as->lower[i]->value.integer);
}
@@ -679,6 +696,7 @@ gfc_get_section_index (gfc_array_ref *ar, mpz_t *section_index, mpz_t *offset)
int i;
mpz_t delta;
mpz_t tmp;
+ gfc_expr *start;
mpz_set_si (*offset, 0);
mpz_init (tmp);
@@ -692,11 +710,15 @@ gfc_get_section_index (gfc_array_ref *ar, mpz_t *section_index, mpz_t *offset)
case DIMEN_RANGE:
if (ar->start[i])
{
- mpz_sub (tmp, ar->start[i]->value.integer,
+ start = gfc_copy_expr(ar->start[i]);
+ if(!gfc_simplify_expr(start, 1))
+ gfc_internal_error("Simplification error");
+ mpz_sub (tmp, start->value.integer,
ar->as->lower[i]->value.integer);
mpz_mul (tmp, tmp, delta);
mpz_add (*offset, tmp, *offset);
- mpz_set (section_index[i], ar->start[i]->value.integer);
+ mpz_set (section_index[i], start->value.integer);
+ gfc_free_expr(start);
}
else
mpz_set (section_index[i], ar->as->lower[i]->value.integer);