Update ISL to isl-0.15-3-g532568a

This version adds small integer optimization, but is not active by
default. It will be enabled in a later commit.
    
The schedule-fuse=min/max option has been replaced by the
serialize-sccs option. Adapting Polly was necessary, but retaining the
name polly-opt-fusion=min/max.

Differential Revision: http://reviews.llvm.org/D10505

Reviewers: grosser
llvm-svn: 240027

1 files changed, 30 insertions, 0 deletions

diff --git a/polly/lib/External/isl/isl_flow.c b/polly/lib/External/isl/isl_flow.c
index 374a5075409..5034c285e38 100644
--- a/polly/lib/External/isl/isl_flow.c
+++ b/polly/lib/External/isl/isl_flow.c
@@ -1345,6 +1345,29 @@ error:
 	return NULL;
 }
 
+__isl_give isl_union_access_info *isl_union_access_info_copy(
+	__isl_keep isl_union_access_info *access)
+{
+	isl_union_access_info *copy;
+
+	if (!access)
+		return NULL;
+	copy = isl_union_access_info_from_sink(
+				isl_union_map_copy(access->sink));
+	copy = isl_union_access_info_set_must_source(copy,
+				isl_union_map_copy(access->must_source));
+	copy = isl_union_access_info_set_may_source(copy,
+				isl_union_map_copy(access->may_source));
+	if (access->schedule)
+		copy = isl_union_access_info_set_schedule(copy,
+				isl_schedule_copy(access->schedule));
+	else
+		copy = isl_union_access_info_set_schedule_map(copy,
+				isl_union_map_copy(access->schedule_map));
+
+	return copy;
+}
+
 /* Update the fields of "access" such that they all have the same parameters,
  * keeping in mind that the schedule_map field may be NULL and ignoring
  * the schedule field.
@@ -1450,6 +1473,13 @@ struct isl_union_flow {
 	isl_union_map *may_no_source;
 };
 
+/* Return the isl_ctx to which "flow" belongs.
+ */
+isl_ctx *isl_union_flow_get_ctx(__isl_keep isl_union_flow *flow)
+{
+	return flow ? isl_union_map_get_ctx(flow->must_dep) : NULL;
+}
+
 /* Free "flow" and return NULL.
  */
 __isl_null isl_union_flow *isl_union_flow_free(__isl_take isl_union_flow *flow)