diff options
Diffstat (limited to 'passes/pmgen/split_shiftx.cc')
| -rw-r--r-- | passes/pmgen/split_shiftx.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/passes/pmgen/split_shiftx.cc b/passes/pmgen/split_shiftx.cc index 71fb4e9ef..672478959 100644 --- a/passes/pmgen/split_shiftx.cc +++ b/passes/pmgen/split_shiftx.cc @@ -26,9 +26,9 @@ PRIVATE_NAMESPACE_BEGIN void create_split_shiftx(split_shiftx_pm &pm) { - if (pm.st.shiftxB.empty()) - return; log_assert(pm.st.shiftx); + if (pm.blacklist_cells.count(pm.st.shiftx)) + return; SigSpec A = pm.st.shiftx->getPort("\\A"); SigSpec Y = pm.st.shiftx->getPort("\\Y"); const int A_WIDTH = pm.st.shiftx->getParam("\\A_WIDTH").as_int(); @@ -56,7 +56,8 @@ struct BitblastShiftxPass : public Pass { log(" split_shiftx [selection]\n"); log("\n"); log("Split up $shiftx cells where Y_WIDTH > 1, with consideration for any $macc\n"); - log("cells that may be driving their B inputs.\n"); + log("cells -- configured as a constant multiplier equal to Y_WIDTH -- that may be\n"); + log("driving their B inputs.\n"); log("\n"); } void execute(std::vector<std::string> args, RTLIL::Design *design) YS_OVERRIDE |