From 0943da1a371fcbb844e19d97460d8d6d0a600c5f Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Mon, 10 Apr 2023 17:23:30 -0500
Subject: [PATCH] nak: Implement OpFSOut with an OpParCopy

This prevents ordering issues among the sources.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
---
 src/nouveau/compiler/nak_ir.rs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/nouveau/compiler/nak_ir.rs b/src/nouveau/compiler/nak_ir.rs
index 30623d520a4..d30f735ffd2 100644
--- a/src/nouveau/compiler/nak_ir.rs
+++ b/src/nouveau/compiler/nak_ir.rs
@@ -2491,13 +2491,14 @@ impl Shader {
                     }))]
                 }
                 Op::FSOut(out) => {
-                    let mut instrs = Vec::new();
+                    let mut pcopy = OpParCopy::new();
                     for (i, src) in out.srcs.iter().enumerate() {
                         let dst =
                             RegRef::new(RegFile::GPR, i.try_into().unwrap(), 1);
-                        instrs.push(Instr::new_mov(dst.into(), *src));
+                        pcopy.srcs.push(*src);
+                        pcopy.dsts.push(dst.into());
                     }
-                    instrs
+                    vec![Instr::new(Op::ParCopy(pcopy))]
                 }
                 _ => vec![instr],
             }