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authorEddie Hung <eddie@fpgeh.com>2019-08-14 15:23:25 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-14 15:23:25 -0700
commit1e47e81869a41cd231693e176dc661751579fc0b (patch)
treef23296adb386bd6e69674bb7dd37b54eeda04035
parent5ec5f6dec7d4cdcfd9e1a2cda999886605778400 (diff)
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Revert "Only sort leaves on non-ANDNOT/ORNOT cells"
This reverts commit 5ec5f6dec7d4cdcfd9e1a2cda999886605778400.
-rw-r--r--passes/techmap/extract_fa.cc13
1 files changed, 6 insertions, 7 deletions
diff --git a/passes/techmap/extract_fa.cc b/passes/techmap/extract_fa.cc
index 6e45c47d4..b541ceb6b 100644
--- a/passes/techmap/extract_fa.cc
+++ b/passes/techmap/extract_fa.cc
@@ -153,12 +153,11 @@ struct ExtractFaWorker
}
}
- void check_partition(SigBit root, pool<SigBit> &leaves, IdString cell_type)
+ void check_partition(SigBit root, pool<SigBit> &leaves)
{
if (config.enable_ha && GetSize(leaves) == 2)
{
- if (!cell_type.in("$_ANDNOT_", "$_ORNOT_"))
- leaves.sort();
+ leaves.sort();
SigBit A = SigSpec(leaves)[0];
SigBit B = SigSpec(leaves)[1];
@@ -238,7 +237,7 @@ struct ExtractFaWorker
}
}
- void find_partitions(SigBit root, pool<SigBit> &leaves, pool<pool<SigBit>> &cache, int maxdepth, int maxbreadth, IdString cell_type)
+ void find_partitions(SigBit root, pool<SigBit> &leaves, pool<pool<SigBit>> &cache, int maxdepth, int maxbreadth)
{
if (cache.count(leaves))
return;
@@ -249,7 +248,7 @@ struct ExtractFaWorker
// log("\n");
cache.insert(leaves);
- check_partition(root, leaves, cell_type);
+ check_partition(root, leaves);
if (maxdepth == 0)
return;
@@ -271,7 +270,7 @@ struct ExtractFaWorker
if (GetSize(new_leaves) > maxbreadth)
continue;
- find_partitions(root, new_leaves, cache, maxdepth-1, maxbreadth, cell_type);
+ find_partitions(root, new_leaves, cache, maxdepth-1, maxbreadth);
}
}
@@ -303,7 +302,7 @@ struct ExtractFaWorker
count_func2 = 0;
count_func3 = 0;
- find_partitions(root, leaves, cache, config.maxdepth, config.maxbreadth, it.second->type);
+ find_partitions(root, leaves, cache, config.maxdepth, config.maxbreadth);
if (config.verbose && count_func2 > 0)
log(" extracted %d two-input functions\n", count_func2);