From 6768a5c03e59e75ac20c666419b4e42cc16118e1 Mon Sep 17 00:00:00 2001
From: Eddie Hung <eddieh@ece.ubc.ca>
Date: Mon, 6 Aug 2018 17:17:39 -0700
Subject: Add Arch::isIOCell() to ecp5 and generic

---
 ecp5/arch.cc | 6 ++++++
 ecp5/arch.h  | 2 ++
 2 files changed, 8 insertions(+)

(limited to 'ecp5')

diff --git a/ecp5/arch.cc b/ecp5/arch.cc
index d2d62241..4a3e8ef3 100644
--- a/ecp5/arch.cc
+++ b/ecp5/arch.cc
@@ -500,6 +500,12 @@ IdString Arch::getPortClock(const CellInfo *cell, IdString port) const { return
 
 bool Arch::isClockPort(const CellInfo *cell, IdString port) const { return false; }
 
+bool Arch::isIOCell(const CellInfo *cell) const
+{
+    return cell->type == id("TRELLIS_IO");
+}
+
+
 std::vector<std::pair<std::string, std::string>> Arch::getTilesAtLocation(int row, int col)
 {
     std::vector<std::pair<std::string, std::string>> ret;
diff --git a/ecp5/arch.h b/ecp5/arch.h
index e00e111a..fd8d0a13 100644
--- a/ecp5/arch.h
+++ b/ecp5/arch.h
@@ -833,6 +833,8 @@ struct Arch : BaseCtx
     bool isClockPort(const CellInfo *cell, IdString port) const;
     // Return true if a port is a net
     bool isGlobalNet(const NetInfo *net) const;
+    // Return true if a cell is an IO
+    bool isIOCell(const CellInfo *cell) const;
 
     // -------------------------------------------------
     // Placement validity checks
-- 
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