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| author | David Shah <dave@ds0.me> | 2019-02-25 11:06:33 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2019-02-25 11:49:25 +0000 |
| commit | a0fa16439942d15e9be745ec074fc1ba3a2a7c95 (patch) | |
| tree | 74c27b3a84b726ea4e8f6430bc1a07a7fc5af723 /ecp5/arch.cc | |
| parent | f363dd2d3c8d00b4d237208d394ed185203a6890 (diff) | |
| download | nextpnr-a0fa16439942d15e9be745ec074fc1ba3a2a7c95.tar.gz nextpnr-a0fa16439942d15e9be745ec074fc1ba3a2a7c95.tar.bz2 nextpnr-a0fa16439942d15e9be745ec074fc1ba3a2a7c95.zip | |
ecp5: Add criticality-based LUT permutation
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'ecp5/arch.cc')
| -rw-r--r-- | ecp5/arch.cc | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/ecp5/arch.cc b/ecp5/arch.cc index cc529df8..fdc9c8fc 100644 --- a/ecp5/arch.cc +++ b/ecp5/arch.cc @@ -486,7 +486,7 @@ delay_t Arch::predictDelay(const NetInfo *net_info, const PortRef &sink) const int dx = abs(driver_loc.x - sink_loc.x), dy = abs(driver_loc.y - sink_loc.y); return (130 - 25 * args.speed) * - (4 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5))); + (6 + std::max(dx - 5, 0) + std::max(dy - 5, 0) + 2 * (std::min(dx, 5) + std::min(dy, 5))); } bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay_t &budget) const @@ -504,7 +504,17 @@ bool Arch::getBudgetOverride(const NetInfo *net_info, const PortRef &sink, delay // ----------------------------------------------------------------------- +<<<<<<< HEAD bool Arch::place() { return placer1(getCtx(), Placer1Cfg(getCtx())); } +======= +bool Arch::place() +{ + bool result = placer_heap(getCtx()); + if (result) + permute_luts(); + return result; +} +>>>>>>> 136e030... lut permutation bool Arch::route() { |