From 6566a011b43289b9b550f3b7f8801156275cb321 Mon Sep 17 00:00:00 2001
From: "D. Shah" <dave@ds0.me>
Date: Mon, 1 Feb 2021 11:46:10 +0000
Subject: nexus: Implement IdStringList for all arch object names

Signed-off-by: D. Shah <dave@ds0.me>
---
 nexus/arch.h | 43 +++++++++++++++++++++----------------------
 1 file changed, 21 insertions(+), 22 deletions(-)

(limited to 'nexus/arch.h')

diff --git a/nexus/arch.h b/nexus/arch.h
index 3063ce67..d37c5026 100644
--- a/nexus/arch.h
+++ b/nexus/arch.h
@@ -897,6 +897,11 @@ struct Arch : BaseCtx
     std::unordered_map<WireId, NetInfo *> wire_to_net;
     std::unordered_map<PipId, NetInfo *> pip_to_net;
 
+    // fast access to  X and Y IdStrings for building object names
+    std::vector<IdString> x_ids, y_ids;
+    // inverse of the above for name->object mapping
+    std::unordered_map<IdString, int> id_to_x, id_to_y;
+
     // -------------------------------------------------
 
     std::string getChipName() const;
@@ -913,17 +918,14 @@ struct Arch : BaseCtx
 
     // -------------------------------------------------
 
-    BelId getBelByName(IdString name) const;
+    BelId getBelByName(IdStringList name) const;
 
-    IdString getBelName(BelId bel) const
+    IdStringList getBelName(BelId bel) const
     {
-        std::string name = "X";
-        name += std::to_string(bel.tile % chip_info->width);
-        name += "/Y";
-        name += std::to_string(bel.tile / chip_info->width);
-        name += "/";
-        name += nameOf(IdString(bel_data(bel).name));
-        return id(name);
+        NPNR_ASSERT(bel != BelId());
+        std::array<IdString, 3> ids{x_ids.at(bel.tile % chip_info->width), y_ids.at(bel.tile / chip_info->width),
+                                    IdString(bel_data(bel).name)};
+        return IdStringList(ids);
     }
 
     uint32_t getBelChecksum(BelId bel) const { return (bel.tile << 16) ^ bel.index; }
@@ -1024,16 +1026,13 @@ struct Arch : BaseCtx
 
     // -------------------------------------------------
 
-    WireId getWireByName(IdString name) const;
-    IdString getWireName(WireId wire) const
+    WireId getWireByName(IdStringList name) const;
+    IdStringList getWireName(WireId wire) const
     {
-        std::string name = "X";
-        name += std::to_string(wire.tile % chip_info->width);
-        name += "/Y";
-        name += std::to_string(wire.tile / chip_info->width);
-        name += "/";
-        name += nameOf(IdString(wire_data(wire).name));
-        return id(name);
+        NPNR_ASSERT(wire != WireId());
+        std::array<IdString, 3> ids{x_ids.at(wire.tile % chip_info->width), y_ids.at(wire.tile / chip_info->width),
+                                    IdString(wire_data(wire).name)};
+        return IdStringList(ids);
     }
 
     IdString getWireType(WireId wire) const;
@@ -1137,8 +1136,8 @@ struct Arch : BaseCtx
 
     // -------------------------------------------------
 
-    PipId getPipByName(IdString name) const;
-    IdString getPipName(PipId pip) const;
+    PipId getPipByName(IdStringList name) const;
+    IdStringList getPipName(PipId pip) const;
 
     void bindPip(PipId pip, NetInfo *net, PlaceStrength strength)
     {
@@ -1290,8 +1289,8 @@ struct Arch : BaseCtx
 
     // -------------------------------------------------
 
-    GroupId getGroupByName(IdString name) const { return GroupId(); }
-    IdString getGroupName(GroupId group) const { return IdString(); }
+    GroupId getGroupByName(IdStringList name) const { return GroupId(); }
+    IdStringList getGroupName(GroupId group) const { return IdStringList(); }
     std::vector<GroupId> getGroups() const { return {}; }
     std::vector<BelId> getGroupBels(GroupId group) const { return {}; }
     std::vector<WireId> getGroupWires(GroupId group) const { return {}; }
-- 
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