From ef2d0d2cb9e149839b1cba746624becae4d7c5df Mon Sep 17 00:00:00 2001
From: David Shah <davey1576@gmail.com>
Date: Mon, 18 Jun 2018 12:20:06 +0200
Subject: Fix hash specialisation for BelType and warnings in place_sa.cc

Signed-off-by: David Shah <davey1576@gmail.com>
---
 ice40/chip.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'ice40')

diff --git a/ice40/chip.h b/ice40/chip.h
index 9d647756..d3eb7c70 100644
--- a/ice40/chip.h
+++ b/ice40/chip.h
@@ -743,4 +743,15 @@ struct Chip
 
 NEXTPNR_NAMESPACE_END
 
+namespace std {
+template <> struct hash<NEXTPNR_NAMESPACE_PREFIX BelType>
+{
+    std::size_t operator()(NEXTPNR_NAMESPACE_PREFIX BelType bt) const
+    noexcept
+    {
+        return std::hash<int>()(int(bt));
+    }
+};
+} // namespace std
+
 #endif
-- 
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