pan/bi: Add class properties

We need to keep track of what specific classes support. For now just
track floating point modifiers.

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

src/panfrost/Makefile.sources

@@ -2,6 +2,7 @@ bifrost_FILES := \
         bifrost/bifrost.h \
         bifrost/bifrost_compile.c \
         bifrost/bifrost_compile.h \
+        bifrost/bifrost_tables.c \
         bifrost/compiler.h \
         bifrost/cmdline.c \
         bifrost/disassemble.c \

src/panfrost/bifrost/bi_tables.c

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2020 Collabora Ltd.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors (Collabora):
+ *      Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
+ */
+
+#include "compiler.h"
+
+unsigned bi_class_props[BI_NUM_CLASSES] = {
+        [BI_ADD] 		= BI_MODS,
+        [BI_ATEST] 		= 0,
+        [BI_BRANCH] 		= 0,
+        [BI_CMP] 		= BI_MODS,
+        [BI_BLEND] 		= 0,
+        [BI_BITWISE] 		= 0,
+        [BI_CONVERT] 		= 0,
+        [BI_CSEL] 		= 0,
+        [BI_DISCARD] 		= 0,
+        [BI_FMA] 		= 0,
+        [BI_FREXP] 		= 0,
+        [BI_LOAD] 		= 0,
+        [BI_LOAD_ATTR] 		= 0,
+        [BI_LOAD_VAR] 		= 0,
+        [BI_LOAD_VAR_ADDRESS] 	= 0,
+        [BI_MINMAX] 		= 0,
+        [BI_MOV] 		= BI_MODS,
+        [BI_SHIFT] 		= 0,
+        [BI_STORE] 		= 0,
+        [BI_STORE_VAR] 		= 0,
+        [BI_SPECIAL] 		= 0,
+        [BI_TEX] 		= 0,
+        [BI_ROUND] 		= 0,
+};

src/panfrost/bifrost/compiler.h

@@ -27,6 +27,8 @@
 #ifndef __BIFROST_COMPILER_H
 #define __BIFROST_COMPILER_H
 
+#include "compiler/nir/nir.h"
+
 /* Bifrost opcodes are tricky -- the same op may exist on both FMA and
  * ADD with two completely different opcodes, and opcodes can be varying
  * length in some cases. Then we have different opcodes for int vs float
@@ -66,8 +68,15 @@ enum bi_class {
         BI_SPECIAL, /* _FAST, _TABLE on supported GPUs */
         BI_TEX,
         BI_ROUND,
+        BI_NUM_CLASSES
 };
 
+/* Properties of a class... */
+extern unsigned bi_class_props[BI_NUM_CLASSES];
+
+/* abs/neg/outmod valid for a float op */
+#define BI_MODS (1 << 0)
+
 /* It can't get any worse than csel4... can it? */
 #define BIR_SRC_COUNT 4
 

src/panfrost/bifrost/meson.build

@@ -21,6 +21,7 @@
 
 libpanfrost_bifrost_files = files(
   'disassemble.c',
+  'bi_tables.c',
   'bifrost_compile.c',
 )