util/ra: Add a getter for a node class

Complements the existing getters and the setter for node class. To be
used in the Panfrost RA refactor.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

diff --git a/src/util/register_allocate.c b/src/util/register_allocate.c
index fe00af6728394907f2ce478717cb51e2e1e5fc34..b23bb3772923db439f83513fb111595570aac9ef 100644 (file)
--- a/src/util/register_allocate.c
+++ b/src/util/register_allocate.c
@@ -557,6 +557,13 @@ ra_set_node_class(struct ra_graph *g,
    g->nodes[n].class = class;
 }
 
+unsigned int
+ra_get_node_class(struct ra_graph *g,
+                  unsigned int n)
+{
+   return g->nodes[n].class;
+}
+
 unsigned int
 ra_add_node(struct ra_graph *g, unsigned int class)
 {

diff --git a/src/util/register_allocate.h b/src/util/register_allocate.h
index 168c6e3535ae4db5110321597329efff60dc9c6c..2cb57a1f0bec22eb63b4c3afae89a2f30974dd25 100644 (file)
--- a/src/util/register_allocate.h
+++ b/src/util/register_allocate.h
@@ -76,6 +76,7 @@ struct ra_graph *ra_alloc_interference_graph(struct ra_regs *regs,
                                              unsigned int count);
 void ra_resize_interference_graph(struct ra_graph *g, unsigned int count);
 void ra_set_node_class(struct ra_graph *g, unsigned int n, unsigned int c);
+unsigned int ra_get_node_class(struct ra_graph *g, unsigned int n);
 unsigned int ra_add_node(struct ra_graph *g, unsigned int c);
 void ra_set_select_reg_callback(struct ra_graph *g,
                                 unsigned int (*callback)(struct ra_graph *g,