pan/bi: Expand MAX_DESTS to 4

For splits.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16585>

src/panfrost/bifrost/bi_schedule.c

@@ -125,7 +125,7 @@ struct bi_clause_state {
         /* Indices already accessed, this needs to be tracked to avoid hazards
          * around message-passing instructions */
         unsigned access_count;
-        bi_index accesses[(BI_MAX_SRCS + 2) * 16];
+        bi_index accesses[(BI_MAX_SRCS + BI_MAX_DESTS) * 16];
 
         unsigned tuple_count;
         struct bi_const_state consts[8];

src/panfrost/bifrost/compiler.h

@@ -371,7 +371,8 @@ bi_is_value_equiv(bi_index left, bi_index right)
         }
 }
 
-#define BI_MAX_DESTS 2
+#define BI_MAX_VEC 8
+#define BI_MAX_DESTS 4
 #define BI_MAX_SRCS 5
 
 typedef struct {