From 7ac67e2711bb6a3f7ff9b6741afd67194fa6ecdf Mon Sep 17 00:00:00 2001
From: Georg Lehmann <dadschoorse@gmail.com>
Date: Thu, 30 Oct 2025 09:28:29 +0100
Subject: [PATCH] aco/isel: emit vop2 v_max_f64 for gfx12+

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38156>
---
 src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp b/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp
index 0ba5da2e0db..a7b3f7c94da 100644
--- a/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp
+++ b/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp
@@ -1969,6 +1969,8 @@ visit_alu_instr(isel_context* ctx, nir_alu_instr* instr)
       } else if (dst.regClass() == v1) {
          emit_vop2_instruction(ctx, instr, aco_opcode::v_max_f32, dst, true, false,
                                ctx->block->fp_mode.must_flush_denorms32);
+      } else if (dst.regClass() == v2 && ctx->options->gfx_level >= GFX12) {
+         emit_vop2_instruction(ctx, instr, aco_opcode::v_max_f64, dst, true);
       } else if (dst.regClass() == v2) {
          emit_vop3a_instruction(ctx, instr, aco_opcode::v_max_f64_e64, dst,
                                 ctx->block->fp_mode.must_flush_denorms16_64);