Also add first.Q to chain_bits since variable length

diff --git a/passes/pmgen/xilinx_srl.pmg b/passes/pmgen/xilinx_srl.pmg
index d41bd3be95a1622257bcb0240e05e247dd7486b5..76134de1a9cb463fc5866c0153090eac1c12a9f0 100644 (file)
--- a/passes/pmgen/xilinx_srl.pmg
+++ b/passes/pmgen/xilinx_srl.pmg
@@ -196,6 +196,7 @@ code clk_port en_port
                en_port = \EN;
        else log_abort();
 
+       chain_bits.insert(port(first, \Q)[slice]);
        chain.emplace_back(first, slice);
        subpattern(tail);
 finally