Merge branch 'maint'

[platform/upstream/isl.git] / isl_mat.c

diff --git a/isl_mat.c b/isl_mat.c
index ace8a43..e64beae 100644 (file)
--- a/isl_mat.c
+++ b/isl_mat.c
@@ -14,6 +14,11 @@
 #include "isl_map_private.h"
 #include <isl_dim_private.h>
 
+isl_ctx *isl_mat_get_ctx(__isl_keep isl_mat *mat)
+{
+       return mat ? mat->ctx : NULL;
+}
+
 struct isl_mat *isl_mat_alloc(struct isl_ctx *ctx,
        unsigned n_row, unsigned n_col)
 {
@@ -1192,7 +1197,7 @@ error:
        return NULL;
 }
 
-void isl_mat_dump(struct isl_mat *mat, FILE *out, int indent)
+void isl_mat_print_internal(__isl_keep isl_mat *mat, FILE *out, int indent)
 {
        int i, j;
 
@@ -1221,6 +1226,11 @@ void isl_mat_dump(struct isl_mat *mat, FILE *out, int indent)
        }
 }
 
+void isl_mat_dump(__isl_keep isl_mat *mat)
+{
+       isl_mat_print_internal(mat, stderr, 0);
+}
+
 struct isl_mat *isl_mat_drop_cols(struct isl_mat *mat, unsigned col, unsigned n)
 {
        int r;
@@ -1559,6 +1569,10 @@ __isl_give isl_mat *isl_mat_scale_down(__isl_take isl_mat *mat, isl_int m)
 {
        int i;
 
+       if (isl_int_is_one(m))
+               return mat;
+
+       mat = isl_mat_cow(mat);
        if (!mat)
                return NULL;
 
@@ -1583,6 +1597,17 @@ __isl_give isl_mat *isl_mat_normalize(__isl_take isl_mat *mat)
        return mat;
 }
 
+__isl_give isl_mat *isl_mat_normalize_row(__isl_take isl_mat *mat, int row)
+{
+       mat = isl_mat_cow(mat);
+       if (!mat)
+               return NULL;
+
+       isl_seq_normalize(mat->ctx, mat->row[row], mat->n_col);
+
+       return mat;
+}
+
 /* Number of initial non-zero columns.
  */
 int isl_mat_initial_non_zero_cols(__isl_keep isl_mat *mat)