From 36d0485ae45124b736e50e421babe775be4912bc Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Thu, 2 Jan 2025 01:27:07 -0800
Subject: [PATCH] brw: Allow CSE of MEMORY_MODE_CONSTANT loads

This matches the behavior of FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32888>
---
 src/intel/compiler/brw_opt_cse.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/intel/compiler/brw_opt_cse.cpp b/src/intel/compiler/brw_opt_cse.cpp
index a2825ec8023..4508da2b023 100644
--- a/src/intel/compiler/brw_opt_cse.cpp
+++ b/src/intel/compiler/brw_opt_cse.cpp
@@ -121,6 +121,8 @@ is_expression(const fs_visitor *v, const fs_inst *const inst)
    case SHADER_OPCODE_COS:
    case SHADER_OPCODE_LOAD_SUBGROUP_INVOCATION:
       return true;
+   case SHADER_OPCODE_MEMORY_LOAD_LOGICAL:
+      return inst->src[MEMORY_LOGICAL_MODE].ud == MEMORY_MODE_CONSTANT;
    case SHADER_OPCODE_LOAD_PAYLOAD:
       return !is_coalescing_payload(v->devinfo, v->alloc, inst);
    default: