Fix float-boxes test for 1.14.

The box call is inlined into the devirtualized InexactError ctor, so
assert the underlying gpu_gc_pool_alloc via dump_module instead.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: maleadt

test/gcn.jl

@@ -458,20 +458,19 @@ 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
     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

test/ptx.jl

@@ -371,20 +371,19 @@ 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
     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