From 6792e134f37323d8b56a60b4620e782fc0d673dd Mon Sep 17 00:00:00 2001
From: =?utf8?q?Daniel=20Sch=C3=BCrmann?= <daniel@schuermann.dev>
Date: Wed, 15 Apr 2020 12:05:55 +0100
Subject: [PATCH] aco: don't create vector affinities for operands which are
 not killed or are duplicates

Totals from affected shaders:
SGPRS: 825184 -> 825184 (0.00 %)
VGPRS: 697640 -> 697240 (-0.06 %)
Code Size: 79244104 -> 79201072 (-0.05 %) bytes
Max Waves: 42388 -> 42386 (-0.00 %)

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4573>
---
 src/amd/compiler/aco_register_allocation.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index a679267..a3e01b1 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -1410,7 +1410,7 @@ void register_allocation(Program *program, std::vector<TempSet>& live_out_per_bl
          /* add vector affinities */
          if (instr->opcode == aco_opcode::p_create_vector) {
             for (const Operand& op : instr->operands) {
-               if (op.isTemp() && op.getTemp().type() == instr->definitions[0].getTemp().type())
+               if (op.isTemp() && op.isFirstKill() && op.getTemp().type() == instr->definitions[0].getTemp().type())
                   ctx.vectors[op.tempId()] = instr.get();
             }
          }
-- 
2.7.4