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Reduce the number of unification sets to only two

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This commit is contained in:
Massimiliano Culpo
2023-06-23 11:00:36 +02:00
committed by Todd Gamblin
parent a410b22098
commit b94d54e4d9
1 changed files with 2 additions and 1 deletions
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3
lib/spack/spack/solver/concretize.lp
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@@ -54,7 +54,7 @@ unify(SetID, PackageName) :- unification_set(SetID, node(_, PackageName)).
unification_set("root", PackageNode) :- attr("root", PackageNode). unification_set("root", PackageNode) :- attr("root", PackageNode).
unification_set(SetID, ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type != "build", unification_set(SetID, ParentNode). unification_set(SetID, ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type != "build", unification_set(SetID, ParentNode).
unification_set(("build", ParentNode), ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type == "build", unification_set("root", ParentNode). unification_set("build", ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type == "build", unification_set("root", ParentNode).
unification_set(SetID, ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type == "build", SetID != "root", unification_set(SetID, ParentNode). unification_set(SetID, ChildNode) :- attr("depends_on", ParentNode, ChildNode, Type), Type == "build", SetID != "root", unification_set(SetID, ParentNode).
unification_set(SetID, VirtualNode) :- provider(PackageNode, VirtualNode), unification_set(SetID, PackageNode). unification_set(SetID, VirtualNode) :- provider(PackageNode, VirtualNode), unification_set(SetID, PackageNode).
@@ -64,6 +64,7 @@ unification_set(SetID, VirtualNode) :- provider(PackageNode, VirtualNode), unifi
% In the "root" unification set only ID = 0 are allowed % In the "root" unification set only ID = 0 are allowed
:- unification_set("root", node(ID, _)), ID != 0. :- unification_set("root", node(ID, _)), ID != 0.
:- attr("node", PackageNode), not unification_set(_, PackageNode).
% Cannot have a node with an ID, if lower ID of the same package are not used % Cannot have a node with an ID, if lower ID of the same package are not used
:- attr("node", node(ID1, Package)), :- attr("node", node(ID1, Package)),