From b64f45a8baf8d22476737db0130190abb87f9f1e Mon Sep 17 00:00:00 2001
From: gatecat <gatecat@ds0.me>
Date: Fri, 26 Feb 2021 10:07:00 +0000
Subject: Remove unused advanced timing constraint API

This API was simply an attractive nuisance as no code was ever developed
to actually process timing constraints (other than clock constraints
which use a different API).

While I do want to consider basic false path support, among other
things, in the near future; I plan for this to use a new API that
doesn't add complexity to the BaseCtx/Context monstrosity and that is
easier to use on the timing analysis side.

Signed-off-by: gatecat <gatecat@ds0.me>
---
 common/nextpnr.cc | 101 ------------------------------------------------------
 1 file changed, 101 deletions(-)

(limited to 'common/nextpnr.cc')

diff --git a/common/nextpnr.cc b/common/nextpnr.cc
index dd1ebc59..f05f4a55 100644
--- a/common/nextpnr.cc
+++ b/common/nextpnr.cc
@@ -104,13 +104,6 @@ std::string IdStringList::str(const Context *ctx) const
     return s;
 }
 
-TimingConstrObjectId BaseCtx::timingWildcardObject()
-{
-    TimingConstrObjectId id;
-    id.index = 0;
-    return id;
-}
-
 std::string &StrRingBuffer::next()
 {
     std::string &s = buffer.at(index++);
@@ -119,76 +112,6 @@ std::string &StrRingBuffer::next()
     return s;
 }
 
-TimingConstrObjectId BaseCtx::timingClockDomainObject(NetInfo *clockDomain)
-{
-    NPNR_ASSERT(clockDomain->clkconstr != nullptr);
-    if (clockDomain->clkconstr->domain_tmg_id != TimingConstrObjectId()) {
-        return clockDomain->clkconstr->domain_tmg_id;
-    } else {
-        TimingConstraintObject obj;
-        TimingConstrObjectId id;
-        id.index = int(constraintObjects.size());
-        obj.id = id;
-        obj.type = TimingConstraintObject::CLOCK_DOMAIN;
-        obj.entity = clockDomain->name;
-        clockDomain->clkconstr->domain_tmg_id = id;
-        constraintObjects.push_back(obj);
-        return id;
-    }
-}
-
-TimingConstrObjectId BaseCtx::timingNetObject(NetInfo *net)
-{
-    if (net->tmg_id != TimingConstrObjectId()) {
-        return net->tmg_id;
-    } else {
-        TimingConstraintObject obj;
-        TimingConstrObjectId id;
-        id.index = int(constraintObjects.size());
-        obj.id = id;
-        obj.type = TimingConstraintObject::NET;
-        obj.entity = net->name;
-        constraintObjects.push_back(obj);
-        net->tmg_id = id;
-        return id;
-    }
-}
-
-TimingConstrObjectId BaseCtx::timingCellObject(CellInfo *cell)
-{
-    if (cell->tmg_id != TimingConstrObjectId()) {
-        return cell->tmg_id;
-    } else {
-        TimingConstraintObject obj;
-        TimingConstrObjectId id;
-        id.index = int(constraintObjects.size());
-        obj.id = id;
-        obj.type = TimingConstraintObject::CELL;
-        obj.entity = cell->name;
-        constraintObjects.push_back(obj);
-        cell->tmg_id = id;
-        return id;
-    }
-}
-
-TimingConstrObjectId BaseCtx::timingPortObject(CellInfo *cell, IdString port)
-{
-    if (cell->ports.at(port).tmg_id != TimingConstrObjectId()) {
-        return cell->ports.at(port).tmg_id;
-    } else {
-        TimingConstraintObject obj;
-        TimingConstrObjectId id;
-        id.index = int(constraintObjects.size());
-        obj.id = id;
-        obj.type = TimingConstraintObject::CELL_PORT;
-        obj.entity = cell->name;
-        obj.port = port;
-        constraintObjects.push_back(obj);
-        cell->ports.at(port).tmg_id = id;
-        return id;
-    }
-}
-
 Property::Property() : is_string(false), str(""), intval(0) {}
 
 Property::Property(int64_t intval, int width) : is_string(false), intval(intval)
@@ -286,30 +209,6 @@ Property Property::from_string(const std::string &s)
     return p;
 }
 
-void BaseCtx::addConstraint(std::unique_ptr<TimingConstraint> constr)
-{
-    for (auto fromObj : constr->from)
-        constrsFrom.emplace(fromObj, constr.get());
-    for (auto toObj : constr->to)
-        constrsTo.emplace(toObj, constr.get());
-    IdString name = constr->name;
-    constraints[name] = std::move(constr);
-}
-
-void BaseCtx::removeConstraint(IdString constrName)
-{
-    TimingConstraint *constr = constraints[constrName].get();
-    for (auto fromObj : constr->from) {
-        auto fromConstrs = constrsFrom.equal_range(fromObj);
-        constrsFrom.erase(std::find(fromConstrs.first, fromConstrs.second, std::make_pair(fromObj, constr)));
-    }
-    for (auto toObj : constr->to) {
-        auto toConstrs = constrsFrom.equal_range(toObj);
-        constrsFrom.erase(std::find(toConstrs.first, toConstrs.second, std::make_pair(toObj, constr)));
-    }
-    constraints.erase(constrName);
-}
-
 const char *BaseCtx::nameOfBel(BelId bel) const
 {
     const Context *ctx = getCtx();
-- 
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