Merge pull request SciML#813 from SciML/ChrisRackauckas-patch-1

Remove TriangularSolve dependency

Author: ChrisRackauckas

Project.toml

@@ -27,7 +27,6 @@ SciMLLogging = "a6db7da4-7206-11f0-1eab-35f2a5dbe1d1"
 SciMLOperators = "c0aeaf25-5076-4817-a8d5-81caf7dfa961"
 Setfield = "efcf1570-3423-57d1-acb7-fd33fddbac46"
 StaticArraysCore = "1e83bf80-4336-4d27-bf5d-d5a4f845583c"
-TriangularSolve = "d5829a12-d9aa-46ab-831f-fb7c9ab06edf"
 UnPack = "3a884ed6-31ef-47d7-9d2a-63182c4928ed"
 
 [weakdeps]
@@ -139,7 +138,6 @@ StableRNGs = "1.0"
 StaticArrays = "1.9"
 StaticArraysCore = "1.4.3"
 Test = "1.10"
-TriangularSolve = "0.2.1"
 UnPack = "1.0.2"
 Zygote = "0.7"
 blis_jll = "0.9.0"

ext/LinearSolveRecursiveFactorizationExt.jl

@@ -6,7 +6,6 @@ using LinearSolve: LinearSolve, userecursivefactorization, LinearCache, @get_cac
 using LinearSolve.LinearAlgebra, LinearSolve.ArrayInterface, RecursiveFactorization
 using SciMLBase: SciMLBase, ReturnCode
 using SciMLLogging: @SciMLMessage
-using TriangularSolve
 
 LinearSolve.userecursivefactorization(A::Union{Nothing, AbstractMatrix}) = true
 
@@ -132,7 +131,10 @@ function SciMLBase.solve!(cache::LinearSolve.LinearCache, alg::ButterflyFactoriz
     (;A, b, ws, U, V, out, tmp, n) = workspace
     b[1:M] .= cache_b
     mul!(tmp, U', b)
-    TriangularSolve.ldiv!(F, tmp, thread)
+
+    # TriangularSolve.ldiv!
+    RecursiveFactorization.ldiv!(F, tmp, thread)
+  
     mul!(b, V, tmp)
     out .= @view b[1:n]
     SciMLBase.build_linear_solution(alg, out, nothing, cache)