From 176b9a0f0c46a9983d13736ac593a178d303ce03 Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Date: Wed, 15 Apr 2026 14:31:25 -0400
Subject: [PATCH] jay/opt_dead_code: handle predication

otherwise we'll get validation splat soon.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41064>
---
 src/intel/compiler/jay/jay_opt_dead_code.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/intel/compiler/jay/jay_opt_dead_code.c b/src/intel/compiler/jay/jay_opt_dead_code.c
index da9d7299d57..72d3a7f29c4 100644
--- a/src/intel/compiler/jay/jay_opt_dead_code.c
+++ b/src/intel/compiler/jay/jay_opt_dead_code.c
@@ -4,6 +4,7 @@
  */
 
 #include "util/bitset.h"
+#include "jay_builder.h"
 #include "jay_ir.h"
 #include "jay_opcodes.h"
 #include "jay_private.h"
@@ -18,6 +19,12 @@ pass(jay_function *f)
       if (!BITSET_TEST_COUNT(live_set, jay_base_index(I->dst),
                              jay_num_values(I->dst)) &&
           I->op != JAY_OPCODE_SEND) {
+
+         if (I->predication == JAY_PREDICATED_DEFAULT && !jay_is_null(I->dst)) {
+            jay_shrink_sources(I, I->num_srcs - 1);
+            I->predication = JAY_PREDICATED;
+         }
+
          I->dst = jay_null();
       }