+static int test_plain_fixed(isl_ctx *ctx, __isl_take isl_map *map,
+ enum isl_dim_type type, unsigned pos, int fixed)
+{
+ int test;
+
+ test = isl_map_plain_is_fixed(map, type, pos, NULL);
+ isl_map_free(map);
+ if (test < 0)
+ return -1;
+ if (test == fixed)
+ return 0;
+ if (fixed)
+ isl_die(ctx, isl_error_unknown,
+ "map not detected as fixed", return -1);
+ else
+ isl_die(ctx, isl_error_unknown,
+ "map detected as fixed", return -1);
+}
+
+int test_fixed(isl_ctx *ctx)
+{
+ const char *str;
+ isl_map *map;
+
+ str = "{ [i] -> [i] }";
+ map = isl_map_read_from_str(ctx, str);
+ if (test_plain_fixed(ctx, map, isl_dim_out, 0, 0))
+ return -1;
+ str = "{ [i] -> [1] }";
+ map = isl_map_read_from_str(ctx, str);
+ if (test_plain_fixed(ctx, map, isl_dim_out, 0, 1))
+ return -1;
+ str = "{ S_1[p1] -> [o0] : o0 = -2 and p1 >= 1 and p1 <= 7 }";
+ map = isl_map_read_from_str(ctx, str);
+ if (test_plain_fixed(ctx, map, isl_dim_out, 0, 1))
+ return -1;
+ map = isl_map_read_from_str(ctx, str);
+ map = isl_map_neg(map);
+ if (test_plain_fixed(ctx, map, isl_dim_out, 0, 1))
+ return -1;
+
+ return 0;
+}
+