diff options
Diffstat (limited to 'passes/cmds/setundef.cc')
| -rw-r--r-- | passes/cmds/setundef.cc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/passes/cmds/setundef.cc b/passes/cmds/setundef.cc index a078b0b1c..590a7eb1d 100644 --- a/passes/cmds/setundef.cc +++ b/passes/cmds/setundef.cc @@ -20,6 +20,7 @@ #include "kernel/register.h" #include "kernel/celltypes.h" #include "kernel/sigtools.h" +#include "kernel/mem.h" #include "kernel/rtlil.h" #include "kernel/log.h" @@ -478,6 +479,29 @@ struct SetundefPass : public Pass { log_assert(ffbits.empty()); } + if (worker.next_bit_mode == MODE_ANYSEQ || worker.next_bit_mode == MODE_ANYCONST) + { + // Do not add anyseq / anyconst to unused memory port clocks + std::vector<Mem> memories = Mem::get_selected_memories(module); + for (auto &mem : memories) { + bool changed = false; + for (auto &rd_port : mem.rd_ports) { + if (!rd_port.clk_enable && rd_port.clk.is_fully_undef()) { + changed = true; + rd_port.clk = State::S0; + } + } + for (auto &wr_port : mem.rd_ports) { + if (!wr_port.clk_enable && wr_port.clk.is_fully_undef()) { + changed = true; + wr_port.clk = State::S0; + } + } + if (changed) + mem.emit(); + } + } + module->rewrite_sigspecs(worker); if (worker.next_bit_mode == MODE_ANYSEQ || worker.next_bit_mode == MODE_ANYCONST) |