From 725293c8f7da490e6c2bd6a23711133efec8249d Mon Sep 17 00:00:00 2001
From: Simon Perretta <simon.perretta@imgtec.com>
Date: Fri, 28 Feb 2025 13:12:57 +0000
Subject: [PATCH] pco: experimentally propagate olchk mod for fwd prop opt

Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36412>
---
 src/imagination/pco/pco_opt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/imagination/pco/pco_opt.c b/src/imagination/pco/pco_opt.c
index 69432cb8901..7847d8f567c 100644
--- a/src/imagination/pco/pco_opt.c
+++ b/src/imagination/pco/pco_opt.c
@@ -393,6 +393,12 @@ static inline bool try_fwd_prop_instr(pco_instr **writes, pco_instr *instr)
       /* TODO: types? */
       *psrc = repl;
 
+      if (pco_instr_has_olchk(parent_instr) &&
+          pco_instr_get_olchk(parent_instr)) {
+         assert(pco_instr_has_olchk(instr));
+         pco_instr_set_olchk(instr, true);
+      }
+
       progress = true;
    }