aco/ra: remove live-in temporary from live_out_per_block when moving it

Otherwise, handle_loop_phis() might pass it to handle_live_in() and then
we could have two phis for this variable.

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Fixes: 7c64623e94 ("aco/ra: refactor SSA repairing during register allocation")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10236>

src/amd/compiler/aco_register_allocation.cpp

@@ -2200,6 +2200,11 @@ void register_allocation(Program *program, std::vector<IDSet>& live_out_per_bloc
                for (unsigned i = 0; i < preds.size(); i++)
                   new_phi->operands[i] = Operand(pc.first);
                instructions.emplace_back(std::move(new_phi));
+
+               /* Remove from live_out_per_block (now used for live-in), because handle_loop_phis()
+                * would re-create this phi later if this is a loop header.
+                */
+               live_out_per_block[block.index].erase(orig.id());
             }
 
             register_file.fill(definition);