From 91ca5f110bdea0dbf1b6183d8129c3ea7b0c71c6 Mon Sep 17 00:00:00 2001
From: Keith Rothman <537074+litghost@users.noreply.github.com>
Date: Wed, 24 Mar 2021 16:25:15 -0700
Subject: Re-work LUT mapping logic to only put VCC pins when required.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
---
 fpga_interchange/luts.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'fpga_interchange/luts.h')

diff --git a/fpga_interchange/luts.h b/fpga_interchange/luts.h
index 3500c9d3..dec5a9d6 100644
--- a/fpga_interchange/luts.h
+++ b/fpga_interchange/luts.h
@@ -88,6 +88,8 @@ struct LutMapper
     std::vector<CellInfo *> cells;
 
     bool remap_luts(const Context *ctx);
+    uint32_t check_wires(const std::vector<std::vector<int32_t>> &bel_to_cell_pin_remaps,
+                         const std::vector<const LutBel *> &lut_bels, uint32_t used_pins) const;
 };
 
 // Rotate and merge a LUT equation into an array of levels.
-- 
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