From 0b9e2a542710726d05789e0a4fce4c3ffe77462d Mon Sep 17 00:00:00 2001
From: Georg Lehmann <dadschoorse@gmail.com>
Date: Tue, 10 Dec 2024 16:38:46 +0100
Subject: [PATCH] aco/ra: disallow s_cmpk with scc operand

Fixes: 2d6b0a4177b ("aco/optimizer: Optimize SOPC with literal to SOPK.")

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32545>
---
 src/amd/compiler/aco_register_allocation.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index 9600b92b121..75b06865959 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -2091,6 +2091,7 @@ operand_can_use_reg(amd_gfx_level gfx_level, aco_ptr<Instruction>& instr, unsign
               gfx_level >= GFX10); /* sdata can be vcc */
    case Format::MUBUF:
    case Format::MTBUF: return idx != 2 || gfx_level < GFX12 || reg != scc;
+   case Format::SOPK: return idx != 0 || reg != scc;
    default:
       // TODO: there are more instructions with restrictions on registers
       return true;