Remove wire alias API

It has not actually been implemented in any router for over 2.5 years and causes nothing more than confusion. It can always be added back if it forms part of a future solution; possibly as part of a more general database structure rethink.

Signed-off-by: David Shah <dave@ds0.me>

3 files changed, 2 insertions, 26 deletions

diff --git a/generic/arch.cc b/generic/arch.cc
index 6979673a..4bf337bd 100644
--- a/generic/arch.cc
+++ b/generic/arch.cc
@@ -90,20 +90,6 @@ void Arch::addPip(IdString name, IdString type, IdString srcWire, IdString dstWi
     tilePipDimZ[loc.x][loc.y] = std::max(tilePipDimZ[loc.x][loc.y], loc.z + 1);
 }
 
-void Arch::addAlias(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay)
-{
-    NPNR_ASSERT(pips.count(name) == 0);
-    PipInfo &pi = pips[name];
-    pi.name = name;
-    pi.type = type;
-    pi.srcWire = srcWire;
-    pi.dstWire = dstWire;
-    pi.delay = delay;
-
-    wire_info(srcWire).aliases.push_back(name);
-    pip_ids.push_back(name);
-}
-
 void Arch::addBel(IdString name, IdString type, Loc loc, bool gb)
 {
     NPNR_ASSERT(bels.count(name) == 0);
@@ -467,8 +453,6 @@ const std::vector<PipId> &Arch::getPipsDownhill(WireId wire) const { return wire
 
 const std::vector<PipId> &Arch::getPipsUphill(WireId wire) const { return wires.at(wire).uphill; }
 
-const std::vector<PipId> &Arch::getWireAliases(WireId wire) const { return wires.at(wire).aliases; }
-
 // ---------------------------------------------------------------
 
 GroupId Arch::getGroupByName(IdString name) const { return name; }
diff --git a/generic/arch.h b/generic/arch.h
index cbfb943d..011d7d45 100644
--- a/generic/arch.h
+++ b/generic/arch.h
@@ -50,7 +50,7 @@ struct WireInfo
     IdString name, type;
     std::map<IdString, std::string> attrs;
     NetInfo *bound_net;
-    std::vector<PipId> downhill, uphill, aliases;
+    std::vector<PipId> downhill, uphill;
     BelPin uphill_bel_pin;
     std::vector<BelPin> downhill_bel_pins;
     std::vector<BelPin> bel_pins;
@@ -142,7 +142,6 @@ struct Arch : BaseCtx
 
     void addWire(IdString name, IdString type, int x, int y);
     void addPip(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay, Loc loc);
-    void addAlias(IdString name, IdString type, IdString srcWire, IdString dstWire, DelayInfo delay);
 
     void addBel(IdString name, IdString type, Loc loc, bool gb);
     void addBelInput(IdString bel, IdString name, IdString wire);
@@ -241,7 +240,6 @@ struct Arch : BaseCtx
     DelayInfo getPipDelay(PipId pip) const;
     const std::vector<PipId> &getPipsDownhill(WireId wire) const;
     const std::vector<PipId> &getPipsUphill(WireId wire) const;
-    const std::vector<PipId> &getWireAliases(WireId wire) const;
 
     GroupId getGroupByName(IdString name) const;
     IdString getGroupName(GroupId group) const;
diff --git a/generic/arch_pybindings.cc b/generic/arch_pybindings.cc
index c00686dd..7f7229fd 100644
--- a/generic/arch_pybindings.cc
+++ b/generic/arch_pybindings.cc
@@ -120,8 +120,6 @@ void arch_wrap_python(py::module &m)
                                                                                              "getPipsDownhill");
     fn_wrapper_1a<Context, decltype(&Context::getPipsUphill), &Context::getPipsUphill,
                   wrap_context<const std::vector<PipId> &>, conv_from_str<WireId>>::def_wrap(ctx_cls, "getPipsUphill");
-    fn_wrapper_1a<Context, decltype(&Context::getWireAliases), &Context::getWireAliases,
-                  wrap_context<const std::vector<PipId> &>, conv_from_str<WireId>>::def_wrap(ctx_cls, "getWireAliases");
 
     fn_wrapper_1a<Context, decltype(&Context::getPipSrcWire), &Context::getPipSrcWire, conv_to_str<WireId>,
                   conv_from_str<PipId>>::def_wrap(ctx_cls, "getPipSrcWire");
@@ -162,10 +160,6 @@ void arch_wrap_python(py::module &m)
                     conv_from_str<IdString>, conv_from_str<IdString>, conv_from_str<IdString>, pass_through<DelayInfo>,
                     pass_through<Loc>>::def_wrap(ctx_cls, "addPip", "name"_a, "type"_a, "srcWire"_a, "dstWire"_a,
                                                  "delay"_a, "loc"_a);
-    fn_wrapper_5a_v<Context, decltype(&Context::addAlias), &Context::addAlias, conv_from_str<IdString>,
-                    conv_from_str<IdString>, conv_from_str<IdString>, conv_from_str<IdString>,
-                    pass_through<DelayInfo>>::def_wrap(ctx_cls, "addAlias", "name"_a, "type"_a, "srcWire"_a,
-                                                       "dstWire"_a, "delay"_a);
 
     fn_wrapper_4a_v<Context, decltype(&Context::addBel), &Context::addBel, conv_from_str<IdString>,
                     conv_from_str<IdString>, pass_through<Loc>, pass_through<bool>>::def_wrap(ctx_cls, "addBel",
@@ -240,4 +234,4 @@ void arch_wrap_python(py::module &m)
 
 NEXTPNR_NAMESPACE_END
 
-#endif
\ No newline at end of file
+#endif