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-rw-r--r--ice40/cells.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/ice40/cells.cc b/ice40/cells.cc
index d23b6c49..9517c590 100644
--- a/ice40/cells.cc
+++ b/ice40/cells.cc
@@ -412,7 +412,7 @@ void dff_to_lc(const Context *ctx, CellInfo *dff, CellInfo *lc, bool pass_thru_l
replace_port(dff, ctx->id("Q"), lc, ctx->id("O"));
}
-void nxio_to_sb(Context *ctx, CellInfo *nxio, CellInfo *sbio, std::unordered_set<IdString> &todelete_cells)
+void nxio_to_sb(Context *ctx, CellInfo *nxio, CellInfo *sbio, pool<IdString> &todelete_cells)
{
if (nxio->type == ctx->id("$nextpnr_ibuf")) {
sbio->params[ctx->id("PIN_TYPE")] = 1;