diff options
| author | David Shah <dave@ds0.me> | 2019-12-10 11:31:08 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2020-02-03 11:38:31 +0000 |
| commit | 3b6d9c952a45292c93de19040868c2c2ae562f26 (patch) | |
| tree | 86abebbe68122a2ec210d755732d3523be6b1671 /common/router2.cc | |
| parent | a1c703729cf4bf51752f188f63d5f0969d9f544b (diff) | |
| download | nextpnr-3b6d9c952a45292c93de19040868c2c2ae562f26.tar.gz nextpnr-3b6d9c952a45292c93de19040868c2c2ae562f26.tar.bz2 nextpnr-3b6d9c952a45292c93de19040868c2c2ae562f26.zip | |
router2: special case improvement
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'common/router2.cc')
| -rw-r--r-- | common/router2.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/common/router2.cc b/common/router2.cc index 533cee33..5f3ebeea 100644 --- a/common/router2.cc +++ b/common/router2.cc @@ -434,7 +434,7 @@ struct Router2 // This could also be used to speed up forwards routing by a hybrid // bidirectional approach int backwards_iter = 0; - int backwards_limit = 10; + int backwards_limit = ctx->getBelGlobalBuf(net->driver.cell->bel) ? 20000 : 15; t.backwards_pip.clear(); t.backwards_queue.push(dst_wire); while (!t.backwards_queue.empty() && backwards_iter < backwards_limit) { |