pan/bi: Add BI_GENERIC property

I don't want to have 20 class-specific structures floating around. So
let's derive them all from a common generic ALU type.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4061>

src/panfrost/bifrost/bi_tables.c

@@ -27,12 +27,12 @@
 #include "compiler.h"
 
 unsigned bi_class_props[BI_NUM_CLASSES] = {
-        [BI_ADD] 		= BI_MODS,
+        [BI_ADD] 		= BI_GENERIC | BI_MODS,
         [BI_ATEST] 		= 0,
         [BI_BRANCH] 		= 0,
-        [BI_CMP] 		= BI_MODS,
+        [BI_CMP] 		= BI_GENERIC | BI_MODS,
         [BI_BLEND] 		= 0,
-        [BI_BITWISE] 		= 0,
+        [BI_BITWISE] 		= BI_GENERIC,
         [BI_CONVERT] 		= 0,
         [BI_CSEL] 		= 0,
         [BI_DISCARD] 		= 0,
@@ -42,12 +42,12 @@ unsigned bi_class_props[BI_NUM_CLASSES] = {
         [BI_LOAD_ATTR] 		= 0,
         [BI_LOAD_VAR] 		= 0,
         [BI_LOAD_VAR_ADDRESS] 	= 0,
-        [BI_MINMAX] 		= 0,
+        [BI_MINMAX] 		= BI_GENERIC,
         [BI_MOV] 		= BI_MODS,
         [BI_SHIFT] 		= 0,
         [BI_STORE] 		= 0,
         [BI_STORE_VAR] 		= 0,
         [BI_SPECIAL] 		= 0,
         [BI_TEX] 		= 0,
-        [BI_ROUND] 		= 0,
+        [BI_ROUND] 		= BI_GENERIC,
 };

src/panfrost/bifrost/compiler.h

@@ -78,6 +78,11 @@ extern unsigned bi_class_props[BI_NUM_CLASSES];
 /* abs/neg/outmod valid for a float op */
 #define BI_MODS (1 << 0)
 
+/* Generic enough that little class-specific information is required. In other
+ * words, it acts as a "normal" ALU op, even if the encoding ends up being
+ * irregular enough to warrant a separate class */
+#define BI_GENERIC (1 << 1)
+
 /* It can't get any worse than csel4... can it? */
 #define BIR_SRC_COUNT 4