From 19ca4be6b099e53e4b963958bf47fa0e5eae7909 Mon Sep 17 00:00:00 2001
From: Georg Lehmann <dadschoorse@gmail.com>
Date: Tue, 15 Apr 2025 15:50:35 +0200
Subject: [PATCH] aco/isel: fix get_alu_src with 8bit vec2 source

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35434>
---
 src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 0fb7a81df1e..8a756a87274 100644
--- a/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp
+++ b/src/amd/compiler/instruction_selection/aco_select_nir_alu.cpp
@@ -101,7 +101,7 @@ get_alu_src(struct isel_context* ctx, nir_alu_src src, unsigned size = 1)
          elems[i] = emit_extract_vector(ctx, vec, src.swizzle[i], elem_rc);
          vec_instr->operands[i] = Operand{elems[i]};
       }
-      Temp dst = ctx->program->allocateTmp(RegClass(vec.type(), elem_size * size / 4));
+      Temp dst = ctx->program->allocateTmp(RegClass::get(vec.type(), elem_size * size));
       vec_instr->definitions[0] = Definition(dst);
       ctx->block->instructions.emplace_back(std::move(vec_instr));
       ctx->allocated_vec.emplace(dst.id(), elems);