[CI] Only run Enzyme on v1.10+ (#535)

Author: wsmoses

.buildkite/pipeline.yml

@@ -41,7 +41,7 @@ steps:
       julia -e 'println("--- :julia: Instantiating project")
                 using Pkg
                 try
-                   Pkg.develop([PackageSpec(; path=pwd()), PackageSpec("Enzyme"), PackageSpec("CUDA")])
+                   Pkg.develop([PackageSpec(; path=pwd()), PackageSpec("Enzyme"), PackageSpec("EnzymeCore"), PackageSpec("CUDA")])
                 catch err
                    Pkg.develop(; path=pwd())
                   Pkg.add(["CUDA", "Enzyme"])

.github/workflows/ci.yml

@@ -47,6 +47,26 @@ jobs:
           arch: ${{ matrix.arch }}
           show-versioninfo: true
       - uses: julia-actions/cache@v2
+      - run: | 
+          julia -e '@static if VERSION >= v"1.10"
+            using Pkg
+            withenv("JULIA_PKG_PRECOMPILE_AUTO" => 0) do
+              Pkg.activate("test")
+              Pkg.add(["Enzyme", "EnzymeCore"])
+
+              # to check compatibility, also add Enzyme to the main environment
+              # (or Pkg.test, which merges both environments, could fail)
+              Pkg.activate(".")
+              # Try to co-develop Enzyme and KA
+              try
+                Pkg.develop([PackageSpec("Enzyme"), PackageSpec("EnzymeCore")])
+              catch err
+                @error "Could not install Enzyme" exception=(err,catch_backtrace())
+                exit(3)
+              end
+            end
+          end
+          '
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         with:

test/Project.toml

@@ -1,13 +1,9 @@
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
-Enzyme = "7da242da-08ed-463a-9acd-ee780be4f1d9"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 SpecialFunctions = "276daf66-3868-5448-9aa4-cd146d93841b"
 StaticArrays = "90137ffa-7385-5640-81b9-e52037218182"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
-
-[compat]
-Enzyme = "0.13"

test/runtests.jl

@@ -72,8 +72,8 @@ struct NewBackend <: KernelAbstractions.GPU end
     @test_throws MethodError kernel()
 end
 
-include("extensions/enzyme.jl")
-@static if VERSION >= v"1.7.0"
+@static if VERSION >= v"1.10.0"
+    include("extensions/enzyme.jl")
     @testset "Enzyme" begin
         enzyme_testsuite(CPU, Array)
     end