From 2ef97a079aa705c609a1a3fb9d8640b8d8675d9a Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Wed, 27 Jan 2021 12:17:26 -0500
Subject: [PATCH] pan/bi: Implement bitfield_reverse

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8774>
---
 src/panfrost/bifrost/bifrost_compile.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/panfrost/bifrost/bifrost_compile.c b/src/panfrost/bifrost/bifrost_compile.c
index 03a336b0703..ac99a7c9a5f 100644
--- a/src/panfrost/bifrost/bifrost_compile.c
+++ b/src/panfrost/bifrost/bifrost_compile.c
@@ -1521,6 +1521,10 @@ bi_emit_alu(bi_builder *b, nir_alu_instr *instr)
                 bi_popcount_i32_to(b, dst, s0);
                 break;
 
+        case nir_op_bitfield_reverse:
+                bi_bitrev_i32_to(b, dst, s0);
+                break;
+
         default:
                 fprintf(stderr, "Unhandled ALU op %s\n", nir_op_infos[instr->op].name);
                 unreachable("Unknown ALU op");