align parameters of union arguments to binary functions

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>

1 files changed, 31 insertions, 0 deletions

diff --git a/isl_reordering.h b/isl_reordering.h
new file mode 100644
index 00000000..0afb5545
--- /dev/null
+++ b/isl_reordering.h
@@ -0,0 +1,31 @@
+#ifndef ISL_REORDERING_H
+#define ISL_REORDERING_H
+
+#include <isl_dim.h>
+
+/* pos maps original dimensions to new dimensions.
+ * The final dimension is given by dim.
+ * The number of dimensions (i.e., the range of values) in the result
+ * may be larger than the number of dimensions in the input.
+ * In particular, the possible values of the entries in pos ranges from 0 to
+ * the total dimension of dim - 1, unless isl_reordering_extend
+ * has been called.
+ */
+struct isl_reordering {
+	int ref;
+	isl_dim *dim;
+	unsigned len;
+	int pos[1];
+};
+typedef struct isl_reordering isl_reordering;
+
+__isl_give isl_reordering *isl_parameter_alignment_reordering(
+	__isl_keep isl_dim *alignee, __isl_keep isl_dim *aligner);
+__isl_give isl_reordering *isl_reordering_copy(__isl_keep isl_reordering *exp);
+void isl_reordering_free(__isl_take isl_reordering *exp);
+__isl_give isl_reordering *isl_reordering_extend_dim(
+	__isl_take isl_reordering *exp, __isl_take isl_dim *dim);
+__isl_give isl_reordering *isl_reordering_extend(__isl_take isl_reordering *exp,
+	unsigned extra);
+
+#endif