diff --git a/test/Project.toml b/test/Project.toml
index d01c6e6e..d82dab81 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -6,7 +6,6 @@ GPUCompiler = "61eb1bfa-7361-4325-ad38-22787b887f55"
 InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 LLVM = "929cbde3-209d-540e-8aea-75f648917ca0"
 LLVMDowngrader_jll = "f52de702-fb25-5922-94ba-81dd59b07444"
-LLVM_jll = "86de99a1-58d6-5da7-8064-bd56ce2e322c"
 Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
 NVPTX_LLVM_Backend_jll = "ef6e0fe3-e6ef-59c0-bde6-4989574699e0"
 ParallelTestRunner = "d3525ed8-44d0-4b2c-a655-542cee43accc"
@@ -21,5 +20,4 @@ demumble_jll = "1e29f10c-031c-5a83-9565-69cddfc27673"
 
 [compat]
 Aqua = "0.8"
-LLVM_jll = "15,16,18,20"
 ParallelTestRunner = "2"
diff --git a/test/gcn.jl b/test/gcn.jl
index 99dae742..c61fe5ca 100644
--- a/test/gcn.jl
+++ b/test/gcn.jl
@@ -458,11 +458,8 @@ end
 @testset "float boxes" begin
     mod = @eval module $(gensym())
         function kernel(a,b)
+            # Int32(a) may fail, boxing the Float32 for the @nospecialize ctor
             c = Int32(a)
-            # the conversion to Int32 may fail, in which case the input Float32 is boxed in order to
-            # pass it to the @nospecialize exception constructor. we should really avoid that (eg.
-            # by avoiding @nospecialize, or optimize the unused arguments away), but for now the box
-            # should just work.
             unsafe_store!(b, c)
             return
         end
@@ -470,8 +467,10 @@ end
 
     @test @filecheck begin
         @check_label "define void @{{(julia|j)_kernel_[0-9]+}}"
-        @check "jl_box_float32"
-        GCN.code_llvm(mod.kernel, Tuple{Float32,Ptr{Float32}})
+        # box: a jl_box_float32 call <1.14; 1.14+ inlines it into the devirt'd ctor
+        @check cond=(VERSION < v"1.14-")  "jl_box_float32"
+        @check cond=(VERSION >= v"1.14-") "gpu_gc_pool_alloc"
+        GCN.code_llvm(mod.kernel, Tuple{Float32,Ptr{Float32}}; dump_module=true)
     end
     GCN.code_native(devnull, mod.kernel, Tuple{Float32,Ptr{Float32}})
 end
diff --git a/test/ptx.jl b/test/ptx.jl
index 2d93f3d5..c5d1be99 100644
--- a/test/ptx.jl
+++ b/test/ptx.jl
@@ -371,11 +371,8 @@ end
 @testset "float boxes" begin
     mod = @eval module $(gensym())
         function kernel(a,b)
+            # Int32(a) may fail, boxing the Float32 for the @nospecialize ctor
             c = Int32(a)
-            # the conversion to Int32 may fail, in which case the input Float32 is boxed in
-            # order to pass it to the @nospecialize exception constructor. we should really
-            # avoid that (eg. by avoiding @nospecialize, or optimize the unused arguments
-            # away), but for now the box should just work.
             unsafe_store!(b, c)
             return
         end
@@ -383,8 +380,10 @@ end
 
     @test @filecheck begin
         @check_label "define void @{{(julia|j)_kernel_[0-9]+}}"
-        @check "jl_box_float32"
-        PTX.code_llvm(mod.kernel, Tuple{Float32,Ptr{Float32}})
+        # box: a jl_box_float32 call <1.14; 1.14+ inlines it into the devirt'd ctor
+        @check cond=(VERSION < v"1.14-")  "jl_box_float32"
+        @check cond=(VERSION >= v"1.14-") "gpu_gc_pool_alloc"
+        PTX.code_llvm(mod.kernel, Tuple{Float32,Ptr{Float32}}; dump_module=true)
     end
     PTX.code_native(devnull, mod.kernel, Tuple{Float32,Ptr{Float32}})
 end