diff --git a/src/amd/compiler/aco_register_allocation.cpp b/src/amd/compiler/aco_register_allocation.cpp
index ec8838d97ed..8370effdbc3 100644
--- a/src/amd/compiler/aco_register_allocation.cpp
+++ b/src/amd/compiler/aco_register_allocation.cpp
@@ -1365,7 +1365,7 @@ void register_allocation(Program *program, std::vector<std::set<Temp>> live_out_
       }
 
       /* fill in sgpr_live_in */
-      for (unsigned i = 0; i < ctx.max_used_sgpr; i++)
+      for (unsigned i = 0; i <= ctx.max_used_sgpr; i++)
          sgpr_live_in[block.index][i] = register_file[i];
       sgpr_live_in[block.index][127] = register_file[scc.reg];