From 60537416100356b4daaa10053293a5b93e0e5eaf Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa@collabora.com>
Date: Thu, 22 Jul 2021 11:58:32 -0400
Subject: [PATCH] pan/bi: Add instruction equality helper

Useful for unit testing.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12026>
---
 src/panfrost/bifrost/bi_test.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/panfrost/bifrost/bi_test.h b/src/panfrost/bifrost/bi_test.h
index 1f67eb46537..81038d46b1e 100644
--- a/src/panfrost/bifrost/bi_test.h
+++ b/src/panfrost/bifrost/bi_test.h
@@ -58,4 +58,14 @@ bit_builder(void *memctx)
         return b;
 }
 
+/* Helper to compare for logical equality of instructions. Need to skip over
+ * the link, guaranteed to be first. After that we can compare raw data. */
+static inline bool
+bit_instr_equal(bi_instr *A, bi_instr *B)
+{
+   return memcmp((uint8_t *) A    + sizeof(struct list_head),
+                 (uint8_t *) B    + sizeof(struct list_head),
+                 sizeof(bi_instr) - sizeof(struct list_head)) == 0;
+}
+
 #endif