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-rw-r--r--gcc/fortran/trans-array.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/fortran/trans-array.c b/gcc/fortran/trans-array.c
index 5fc5688..3c099dd 100644
--- a/gcc/fortran/trans-array.c
+++ b/gcc/fortran/trans-array.c
@@ -3083,6 +3083,8 @@ gfc_conv_ss_startstride (gfc_loopinfo * loop)
info->start[n]);
tmp = fold_build2 (FLOOR_DIV_EXPR, gfc_array_index_type, tmp,
info->stride[n]);
+ tmp = fold_build2 (MAX_EXPR, gfc_array_index_type, tmp,
+ build_int_cst (gfc_array_index_type, 0));
/* We remember the size of the first section, and check all the
others against this. */
if (size[n])
@@ -3435,8 +3437,10 @@ gfc_conv_loop_setup (gfc_loopinfo * loop)
for (i = 0; i<=last; i++){...}; */
tmp = fold_build2 (MINUS_EXPR, gfc_array_index_type,
loop->to[n], loop->from[n]);
- tmp = fold_build2 (TRUNC_DIV_EXPR, gfc_array_index_type,
+ tmp = fold_build2 (FLOOR_DIV_EXPR, gfc_array_index_type,
tmp, info->stride[n]);
+ tmp = fold_build2 (MAX_EXPR, gfc_array_index_type, tmp,
+ build_int_cst (gfc_array_index_type, -1));
loop->to[n] = gfc_evaluate_now (tmp, &loop->pre);
/* Make the loop variable start at 0. */
loop->from[n] = gfc_index_zero_node;