From 8dc4e8094ee79ad3c38e2cd970f91d2b0e1150f1 Mon Sep 17 00:00:00 2001
From: Karol Herbst <kherbst@redhat.com>
Date: Thu, 21 May 2026 12:30:59 +0200
Subject: [PATCH] nir/opt_algebraic: add missing fmadz lowering for
 lower_fmulz_with_abs_min

Fixes: 32e91a74675 ("nir: add new float multiply-add opcodes")
Suggested-by: Georg Lehmann <dadschoorse@gmail.com>
Acked-by: Job Noorman <jnoorman@igalia.com>
Reviewed-by: Georg Lehmann <dadschoorse@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41723>
---
 src/compiler/nir/nir_opt_algebraic.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index a8f71b8bc90..2a18ed2691a 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -4091,7 +4091,9 @@ late_optimizations += [
    (('fmulz@32', a, b),
     ('bcsel', ('feq', ('fmin', ('fabs', a), ('fabs', b)), 0.0), 0.0, ('fmul', a, b)), 'options->lower_fmulz_with_abs_min'),
    (('ffmaz@32', a, b, c),
-    ('bcsel', ('feq', ('fmin', ('fabs', a), ('fabs', b)), 0.0), c, ('ffma@32', a, b, c)), 'options->lower_fmulz_with_abs_min')
+    ('bcsel', ('feq', ('fmin', ('fabs', a), ('fabs', b)), 0.0), c, ('ffma@32', a, b, c)), 'options->lower_fmulz_with_abs_min'),
+   (('fmadz@32', a, b, c),
+    ('bcsel', ('feq', ('fmin', ('fabs', a), ('fabs', b)), 0.0), c, ('fmad@32', a, b, c)), 'options->lower_fmulz_with_abs_min'),
 ]
 
 # mediump: If an opcode is surrounded by conversions, remove the conversions.