From a9fb7b0280c90b81d7b3c0aaf89953b21e957e44 Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Thu, 7 Dec 2023 23:36:38 -0600
Subject: [PATCH] nak: Implement b2f64

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26743>
---
 src/nouveau/compiler/nak/from_nir.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/nouveau/compiler/nak/from_nir.rs b/src/nouveau/compiler/nak/from_nir.rs
index 5fb9c280fdf..25855027c8c 100644
--- a/src/nouveau/compiler/nak/from_nir.rs
+++ b/src/nouveau/compiler/nak/from_nir.rs
@@ -519,6 +519,11 @@ impl<'a> ShaderFromNir<'a> {
             nir_op_b2f32 => {
                 b.sel(srcs[0].bnot(), 0.0_f32.into(), 1.0_f32.into())
             }
+            nir_op_b2f64 => {
+                let lo = b.copy(0.into());
+                let hi = b.sel(srcs[0].bnot(), 0.into(), 0x3ff00000.into());
+                [lo[0], hi[0]].into()
+            }
             nir_op_bcsel => b.sel(srcs[0], srcs[1], srcs[2]),
             nir_op_bit_count => {
                 let dst = b.alloc_ssa(RegFile::GPR, 1);