Add generic interface to change codegen params

Author: gbaraldi

src/interface.jl

@@ -185,6 +185,10 @@ get_interpreter(@nospecialize(job::CompilerJob)) =
 # if not, calls to throw will be replaced with calls to the GPU runtime
 can_throw(@nospecialize(job::CompilerJob)) = uses_julia_runtime(job)
 
+function codegen_params(@nospecialize(job::CompilerJob))
+    return (;)
+end
+
 # does this target support loading from Julia safepoints?
 # if not, safepoints at function entry will not be emitted
 can_safepoint(@nospecialize(job::CompilerJob)) = uses_julia_runtime(job)

src/jlgen.jl

@@ -492,6 +492,7 @@ function compile_method_instance(@nospecialize(job::CompilerJob))
     @static if VERSION >= v"1.10.0-DEV.1499"
         cgparams = merge(cgparams, (;gcstack_arg = false))
     end
+    cgparams = merge(cgparams, codegen_params(job))
     params = Base.CodegenParams(; cgparams...)
 
     # generate IR

test/native_tests.jl

@@ -419,6 +419,18 @@ end
     end
 end
 
+@static if VERSION > v"1.11.0-DEV.398"
+    # TODO: teach the verifier to accept ccalls without the plt
+    @testset "invalid LLVM IR (ccall)" begin
+        foobar(p) = (unsafe_store!(p, ccall(:time, Cint, ())); nothing)
+
+        @test_throws_message(InvalidIRError,
+                            Native.code_execution(foobar, Tuple{Ptr{Int}}), use_jlplt=true) do msg
+            occursin("Reason: unsupported call to the Julia runtime", msg)
+        end
+    end
+end
+
 @testset "delayed bindings" begin
     kernel() = (undefined; return)
 

test/native_testsetup.jl

@@ -12,24 +12,28 @@ Base.Experimental.@MethodTable(test_method_table)
 
 struct CompilerParams <: AbstractCompilerParams
     entry_safepoint::Bool
+    use_jlplt::Bool
     method_table
 
-    CompilerParams(entry_safepoint::Bool=false, method_table=test_method_table) =
-        new(entry_safepoint, method_table)
+    CompilerParams(entry_safepoint::Bool=false, use_jlplt::Bool=true, method_table=test_method_table) =
+        new(entry_safepoint, use_jlplt, method_table)
 end
 
 NativeCompilerJob = CompilerJob{NativeCompilerTarget,CompilerParams}
 GPUCompiler.runtime_module(::NativeCompilerJob) = TestRuntime
 
 GPUCompiler.method_table(@nospecialize(job::NativeCompilerJob)) = job.config.params.method_table
 GPUCompiler.can_safepoint(@nospecialize(job::NativeCompilerJob)) = job.config.params.entry_safepoint
+@static if VERSION > v"1.11.0-DEV.398"
+    GPUCompiler.codegen_params(@nospecialize(job::NativeCompilerJob)) = (;use_jlplt=job.config.params.use_jlplt)
+end
 
 function create_job(@nospecialize(func), @nospecialize(types); kernel::Bool=false,
-                    entry_abi=:specfunc, entry_safepoint::Bool=false, always_inline=false,
+                    entry_abi=:specfunc, entry_safepoint::Bool=false, use_jlplt::Bool=true, always_inline=false,
                     method_table=test_method_table, kwargs...)
     source = methodinstance(typeof(func), Base.to_tuple_type(types), Base.get_world_counter())
     target = NativeCompilerTarget()
-    params = CompilerParams(entry_safepoint, method_table)
+    params = CompilerParams(entry_safepoint, use_jlplt, method_table)
     config = CompilerConfig(target, params; kernel, entry_abi, always_inline)
     CompilerJob(source, config), kwargs
 end