From 4890e91f49fa845f9e0c4fde9b935b832ea1a062 Mon Sep 17 00:00:00 2001
From: Mel Henning <mhenning@darkrefraction.com>
Date: Thu, 30 Oct 2025 18:27:47 -0400
Subject: [PATCH] nak: DCE after legalize

This will be able to eliminate instructions if every use of an SSAValue
is eliminated by ConstTracker in legalize.

Reviewed-by: Mary Guillemard <mary@mary.zone>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38173>
---
 src/nouveau/compiler/nak/api.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/nouveau/compiler/nak/api.rs b/src/nouveau/compiler/nak/api.rs
index 53b9a2ec1fe..cec1674ae99 100644
--- a/src/nouveau/compiler/nak/api.rs
+++ b/src/nouveau/compiler/nak/api.rs
@@ -461,6 +461,7 @@ fn nak_compile_shader_internal(
     pass!(s, opt_dce);
     pass!(s, opt_out);
     pass!(s, legalize);
+    pass!(s, opt_dce);
     pass!(s, assign_regs);
     pass!(s, lower_par_copies);
     pass!(s, lower_copy_swap);